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Nian L, Sun H, Wang Z, Xu D, Hao B, Yan S, Li Y, Zhou J, Deng Y, Hao Y, Nie Y. Sr 4Al 2O 7: A New Sacrificial Layer with High Water Dissolution Rate for the Synthesis of Freestanding Oxide Membranes. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2307682. [PMID: 38238890 DOI: 10.1002/adma.202307682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 12/18/2023] [Indexed: 02/01/2024]
Abstract
Freestanding perovskite oxide membranes have drawn great attention recently since they offer exceptional structural tunability and stacking ability, providing new opportunities in fundamental research and potential device applications in silicon-based semiconductor technology. Among different types of sacrificial layers, the (Ca, Sr, Ba)3Al2O6 compounds are most widely used since they can be dissolved in water and prepare high-quality perovskite oxide membranes with clean and sharp surfaces and interfaces; However, the typical transfer process takes a long time (up to hours) in obtaining millimeter-size freestanding membranes, let alone realize wafer-scale samples with high yield. Here, a new member of the SrO-Al2O3 family, Sr4Al2O7 is introduced, and its high dissolution rate, ≈10 times higher than that of Sr3Al2O6 is demonstrated. The high-dissolution-rate of Sr4Al2O7 is most likely related to the more discrete Al-O networks and higher concentration of water-soluble Sr-O species in this compound. This work significantly facilitates the preparation of freestanding membranes and sheds light on the integration of multifunctional perovskite oxides in practical electronic devices.
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Affiliation(s)
- Leyan Nian
- National Laboratory of Solid State Microstructures, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Sciences, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210023, P. R. China
- Suzhou Laboratory, Suzhou, 215125, P. R. China
| | - Haoying Sun
- National Laboratory of Solid State Microstructures, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Sciences, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210023, P. R. China
| | - Zhichao Wang
- National Laboratory of Solid State Microstructures, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Sciences, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210023, P. R. China
| | - Duo Xu
- National Laboratory of Solid State Microstructures, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Sciences, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210023, P. R. China
| | - Bo Hao
- National Laboratory of Solid State Microstructures, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Sciences, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210023, P. R. China
| | - Shengjun Yan
- National Laboratory of Solid State Microstructures, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Sciences, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210023, P. R. China
| | - Yueying Li
- National Laboratory of Solid State Microstructures, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Sciences, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210023, P. R. China
| | - Jian Zhou
- National Laboratory of Solid State Microstructures, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Sciences, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210023, P. R. China
| | - Yu Deng
- National Laboratory of Solid State Microstructures, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Sciences, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210023, P. R. China
| | - Yufeng Hao
- National Laboratory of Solid State Microstructures, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Sciences, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210023, P. R. China
| | - Yuefeng Nie
- National Laboratory of Solid State Microstructures, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Sciences, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210023, P. R. China
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Long Z, Yang G, Shao R, Chen Z, Liu Y, Liu R, Zhong H. The Strain Effects and Interfacial Defects of Large ZnSe/ZnS Core/Shell Nanocrystals. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2306602. [PMID: 37705120 DOI: 10.1002/smll.202306602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Indexed: 09/15/2023]
Abstract
The shell growth of large ZnSe/ZnS nanocrystals( is of great importance in the pursuit of pure-blue emitters for display applications, however, suffers from the challenges of spectral blue-shifts and reduced photoluminescence quantum yields. In this work, the ZnS shell growth on different-sized ZnSe cores is investigated. By controlling the reactivity of Zn and S precursors, the ZnS shell growth can be tuned from defect-related strain-released to defect-free strained mode, corresponding to the blue- and red-shifts of resultant nanocrystals respectively. The shape of strain-released ZnSe/ZnS nanocrystals can be kept nearly spherical during the shell growth, while the shape of strained nanocrystals evolutes from spherical into island-like after the critical thickness. Furthermore, the strain between ZnSe core and ZnS shell can convert the band alignment from type-I into type-II core/shell structure, resulting in red-shifts and improved quantum yield. By correlating the strain effects with interfacial defects, a strain-released shell growth model is proposed to obtain large ZnSe/ZnS nanocrystals with isotropic shell morphology.
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Affiliation(s)
- Zhiwei Long
- National Engineering Research Center for Rare Earth, GRIREM Advanced Materials Co. Ltd., General Research Institute for Nonferrous Metals, Beijing, 100088, China
- MIIT Key Laboratory for Low-dimensional Quantum Structure and Devices, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Gaoling Yang
- MIIT Key Laboratory for Low-dimensional Quantum Structure and Devices, School of Optics and Photonics, Beijing Institute of Technology, Beijing, 100081, China
| | - Ruiwen Shao
- Beijing Advanced Innovation Center for Intelligent Robots and Systems and School of Medical Technology, Beijing Institute of Technology, Beijing, 100081, China
| | - Zhuo Chen
- BOE Technology Group Co., Ltd, Beijing, 100176, China
| | - Yang Liu
- BOE Technology Group Co., Ltd, Beijing, 100176, China
| | - Ronghui Liu
- National Engineering Research Center for Rare Earth, GRIREM Advanced Materials Co. Ltd., General Research Institute for Nonferrous Metals, Beijing, 100088, China
| | - Haizheng Zhong
- MIIT Key Laboratory for Low-dimensional Quantum Structure and Devices, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing, 100081, China
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Guo Z, Liu G, Sun Y, Zhang Y, Zhao J, Liu P, Wang H, Zhou Z, Zhao Z, Jia X, Sun J, Shao Y, Han X, Zhang Z, Yan X. High-Performance Neuromorphic Computing and Logic Operation Based on a Self-Assembled Vertically Aligned Nanocomposite SrTiO 3:MgO Film Memristor. ACS NANO 2023; 17:21518-21530. [PMID: 37897737 DOI: 10.1021/acsnano.3c06510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/30/2023]
Abstract
Neuromorphic computing based on memristors capable of in-memory computing is promising to break the energy and efficiency bottleneck of well-known von Neumann architectures. However, unstable and nonlinear conductance updates compromise the recognition accuracy and block the integration of neural network hardware. To this end, we present a highly stable memristor with self-assembled vertically aligned nanocomposite (VAN) SrTiO3:MgO films that achieve excellent resistive switching with low set/reset voltage variability (4.7%/-5.6%) and highly linear conductivity variation (nonlinearity = 0.34) by spatially limiting the conductive channels at the vertical interfaces. Various synaptic behaviors are simulated by continuously modulating the conductance. Especially, convolutional image processing using diverse crossbar kernels is demonstrated, and the artificial neural network achieves an overwhelming recognition accuracy of up to 97.50% for handwritten digits. Even under the perturbation of Poisson noise (λ = 10), 6% Salt and Pepper noise, and 5% Gaussian noise, the high recognition accuracies are retained at 95.43%, 94.56%, and 95.97%, respectively. Importantly, the logic memory function is proven experimentally based on the nonvolatile properties. This work provides a material system and design idea to achieve high-performance neuromorphic computing and logic operation.
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Affiliation(s)
- Zhenqiang Guo
- Institute of Life Science and Green Development, Key Laboratory of Brain-like Neuromorphic Devices and Systems of Hebei Province, College of Electronic and Information Engineering, Hebei University, Baoding 071002, P. R. China
| | - Gongjie Liu
- Institute of Life Science and Green Development, Key Laboratory of Brain-like Neuromorphic Devices and Systems of Hebei Province, College of Electronic and Information Engineering, Hebei University, Baoding 071002, P. R. China
| | - Yong Sun
- Institute of Life Science and Green Development, Key Laboratory of Brain-like Neuromorphic Devices and Systems of Hebei Province, College of Electronic and Information Engineering, Hebei University, Baoding 071002, P. R. China
| | - Yinxing Zhang
- Institute of Life Science and Green Development, Key Laboratory of Brain-like Neuromorphic Devices and Systems of Hebei Province, College of Electronic and Information Engineering, Hebei University, Baoding 071002, P. R. China
| | - Jianhui Zhao
- Institute of Life Science and Green Development, Key Laboratory of Brain-like Neuromorphic Devices and Systems of Hebei Province, College of Electronic and Information Engineering, Hebei University, Baoding 071002, P. R. China
| | - Pan Liu
- Institute of Life Science and Green Development, Key Laboratory of Brain-like Neuromorphic Devices and Systems of Hebei Province, College of Electronic and Information Engineering, Hebei University, Baoding 071002, P. R. China
| | - Hong Wang
- Institute of Life Science and Green Development, Key Laboratory of Brain-like Neuromorphic Devices and Systems of Hebei Province, College of Electronic and Information Engineering, Hebei University, Baoding 071002, P. R. China
| | - Zhenyu Zhou
- Institute of Life Science and Green Development, Key Laboratory of Brain-like Neuromorphic Devices and Systems of Hebei Province, College of Electronic and Information Engineering, Hebei University, Baoding 071002, P. R. China
| | - Zhen Zhao
- Institute of Life Science and Green Development, Key Laboratory of Brain-like Neuromorphic Devices and Systems of Hebei Province, College of Electronic and Information Engineering, Hebei University, Baoding 071002, P. R. China
| | - Xiaotong Jia
- Institute of Life Science and Green Development, Key Laboratory of Brain-like Neuromorphic Devices and Systems of Hebei Province, College of Electronic and Information Engineering, Hebei University, Baoding 071002, P. R. China
| | - Jiameng Sun
- Institute of Life Science and Green Development, Key Laboratory of Brain-like Neuromorphic Devices and Systems of Hebei Province, College of Electronic and Information Engineering, Hebei University, Baoding 071002, P. R. China
| | - Yiduo Shao
- Institute of Life Science and Green Development, Key Laboratory of Brain-like Neuromorphic Devices and Systems of Hebei Province, College of Electronic and Information Engineering, Hebei University, Baoding 071002, P. R. China
| | - Xu Han
- Institute of Life Science and Green Development, Key Laboratory of Brain-like Neuromorphic Devices and Systems of Hebei Province, College of Electronic and Information Engineering, Hebei University, Baoding 071002, P. R. China
| | - Zixuan Zhang
- Institute of Life Science and Green Development, Key Laboratory of Brain-like Neuromorphic Devices and Systems of Hebei Province, College of Electronic and Information Engineering, Hebei University, Baoding 071002, P. R. China
| | - Xiaobing Yan
- Institute of Life Science and Green Development, Key Laboratory of Brain-like Neuromorphic Devices and Systems of Hebei Province, College of Electronic and Information Engineering, Hebei University, Baoding 071002, P. R. China
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Roy P, Zhang D, Mazza AR, Cucciniello N, Kunwar S, Zeng H, Chen A, Jia Q. Manipulating topological Hall-like signatures by interface engineering in epitaxial ruthenate/manganite heterostructures. NANOSCALE 2023; 15:17589-17598. [PMID: 37873761 DOI: 10.1039/d3nr02407e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2023]
Abstract
Topologically protected non-trivial spin textures (e.g. skyrmions) give rise to a novel phenomenon called the topological Hall effect (THE) and have promising implications in future energy-efficient nanoelectronic and spintronic devices. Here, we have studied the Hall effect in SrRuO3/La0.42Ca0.58MnO3 (SRO/LCMO) bilayers. Our investigation suggests that pure SRO has hard and soft magnetic characteristics but the anomalous Hall effect (AHE) in SRO is governed by the high coercivity phase. We have shown that the proximity effect of a soft magnetic LCMO on SRO plays a critical role in interfacial magnetic coupling and transport properties in SRO. Upon reducing the SRO thickness in the bilayer, the proximity effect becomes the dominant feature, enhancing the magnitude and temperature range of THE-like signatures. The THE-like features in bilayers can be explained by a diffusive Berry phase transition model in the presence of an emergent magnetic state due to interface coupling. This work provides an alternative understanding of THE-like signatures and their manipulation in SRO-based heterostructures, bilayers and superlattices.
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Affiliation(s)
- Pinku Roy
- Department of Materials Design and Innovation, University at Buffalo - The State University of New York, Buffalo, NY 14260, USA.
- Center for Integrated Nanotechnologies (CINT), Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
| | - Di Zhang
- Center for Integrated Nanotechnologies (CINT), Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
| | - Alessandro R Mazza
- Center for Integrated Nanotechnologies (CINT), Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
| | - Nicholas Cucciniello
- Department of Materials Design and Innovation, University at Buffalo - The State University of New York, Buffalo, NY 14260, USA.
- Center for Integrated Nanotechnologies (CINT), Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
| | - Sundar Kunwar
- Center for Integrated Nanotechnologies (CINT), Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
| | - Hao Zeng
- Department of Physics, University at Buffalo - The State University of New York, Buffalo, NY 14260, USA
| | - Aiping Chen
- Center for Integrated Nanotechnologies (CINT), Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
| | - Quanxi Jia
- Department of Materials Design and Innovation, University at Buffalo - The State University of New York, Buffalo, NY 14260, USA.
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Dou H, Lin Z, Hu Z, Tsai BK, Zheng D, Song J, Lu J, Zhang X, Jia Q, MacManus-Driscoll JL, Ye PD, Wang H. Self-Assembled Au Nanoelectrodes: Enabling Low-Threshold-Voltage HfO 2-Based Artificial Neurons. NANO LETTERS 2023; 23:9711-9718. [PMID: 37875263 PMCID: PMC10636789 DOI: 10.1021/acs.nanolett.3c02217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 09/20/2023] [Indexed: 10/26/2023]
Abstract
Filamentary-type resistive switching devices, such as conductive bridge random-access memory and valence change memory, have diverse applications in memory and neuromorphic computing. However, the randomness in filament formation poses challenges to device reliability and uniformity. To overcome this issue, various defect engineering methods have been explored, including doping, metal nanoparticle embedding, and extended defect utilization. In this study, we present a simple and effective approach using self-assembled uniform Au nanoelectrodes to controll filament formation in HfO2 resistive switching devices. By concentrating the electric field near the Au nanoelectrodes within the BaTiO3 matrix, we significantly enhanced the device stability and reduced the threshold voltage by up to 45% in HfO2-based artificial neurons compared to the control devices. The threshold voltage reduction is attributed to the uniformly distributed Au nanoelectrodes in the insulating matrix, as confirmed by COMSOL simulation. Our findings highlight the potential of nanostructure design for precise control of filamentary-type resistive switching devices.
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Affiliation(s)
- Hongyi Dou
- School
of Materials Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Zehao Lin
- Elmore
School of Electrical Engineering, Purdue
University, West Lafayette, Indiana 47907, United States
| | - Zedong Hu
- Elmore
School of Electrical Engineering, Purdue
University, West Lafayette, Indiana 47907, United States
| | - Benson Kunhung Tsai
- School
of Materials Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Dongqi Zheng
- Elmore
School of Electrical Engineering, Purdue
University, West Lafayette, Indiana 47907, United States
| | - Jiawei Song
- School
of Materials Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Juanjuan Lu
- School
of Materials Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Xinghang Zhang
- School
of Materials Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Quanxi Jia
- Department
of Materials Design and Innovation, School of Engineering and Applied
Sciences, University at Buffalo, The State
University of New York, Buffalo, New York 14260, United States
| | | | - Peide D. Ye
- Elmore
School of Electrical Engineering, Purdue
University, West Lafayette, Indiana 47907, United States
| | - Haiyan Wang
- School
of Materials Engineering, Purdue University, West Lafayette, Indiana 47907, United States
- Elmore
School of Electrical Engineering, Purdue
University, West Lafayette, Indiana 47907, United States
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6
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Zhu X, Zhang Y, Man Z, Lu W, Chen W, Xu J, Bao N, Chen W, Wu G. Microfluidic-Assembled Covalent Organic Frameworks@Ti 3 C 2 T x MXene Vertical Fibers for High-Performance Electrochemical Supercapacitors. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2307186. [PMID: 37619540 DOI: 10.1002/adma.202307186] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 08/17/2023] [Indexed: 08/26/2023]
Abstract
The delicate design of innovative and sophisticated fibers with vertical porous skeleton and eminent electrochemical activity to generate directional ionic pathways and good faradic charge accessibility is pivotal but challenging for realizing high-performance fiber-shaped supercapacitors (FSCs). Here, hierarchically ordered hybrid fiber combined vertical-aligned and conductive Ti3 C2 Tx MXene (VA-Ti3 C2 Tx ) with interstratified electroactive covalent organic frameworks LZU1 (COF-LZU1) by one-step microfluidic synthesis is developed. Due to the incorporation of vertical channels, abundant redox active sites and large accessible surface area throughout the electrode, the VA-Ti3 C2 Tx @COF-LZU1 fibers express exceptional gravimetric capacitance of 787 F g-1 in a three-electrode system. Additionally, the solid-state asymmetric FSCs deliver a prominent energy density of 27 Wh kg-1 , capacitance of 398 F g-1 and cycling life of 20 000 cycles. The key to high energy storage ability originates from the decreased ions adsorption energy and ameliorative charge density distribution in vertically aligned and active hybrid fiber, accelerating ions transportation/accommodation and interfacial electrons transfer. Benefiting from excellent electrochemical performance, the FSCs offer sufficient energy supply to power watches, flags, and digital display tubes as well as be integrated with sensors to detect pulse signals, which opens a promising route for architecting advanced fiber toward the carbon neutrality market beyond energy-storage technology.
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Affiliation(s)
- Xiaolin Zhu
- National Engineering Lab for Textile Fiber Materials and Processing Technology, Zhejiang Sci-Tech University, Hangzhou, 310018, P. R. China
- Zhejiang Provincial Innovation Center of Advanced Textile Technology, Zhejiang Sci-Tech University, Shaoxing, 312000, P. R. China
| | - Yang Zhang
- National Engineering Lab for Textile Fiber Materials and Processing Technology, Zhejiang Sci-Tech University, Hangzhou, 310018, P. R. China
- Zhejiang Provincial Innovation Center of Advanced Textile Technology, Zhejiang Sci-Tech University, Shaoxing, 312000, P. R. China
| | - Zengming Man
- National Engineering Lab for Textile Fiber Materials and Processing Technology, Zhejiang Sci-Tech University, Hangzhou, 310018, P. R. China
- Zhejiang Provincial Innovation Center of Advanced Textile Technology, Zhejiang Sci-Tech University, Shaoxing, 312000, P. R. China
| | - Wangyang Lu
- National Engineering Lab for Textile Fiber Materials and Processing Technology, Zhejiang Sci-Tech University, Hangzhou, 310018, P. R. China
- Zhejiang Provincial Innovation Center of Advanced Textile Technology, Zhejiang Sci-Tech University, Shaoxing, 312000, P. R. China
| | - Wei Chen
- National Engineering Lab for Textile Fiber Materials and Processing Technology, Zhejiang Sci-Tech University, Hangzhou, 310018, P. R. China
- Zhejiang Provincial Innovation Center of Advanced Textile Technology, Zhejiang Sci-Tech University, Shaoxing, 312000, P. R. China
| | - Jianhong Xu
- The State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Ningzhong Bao
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, 210009, P. R. China
| | - Wenxing Chen
- National Engineering Lab for Textile Fiber Materials and Processing Technology, Zhejiang Sci-Tech University, Hangzhou, 310018, P. R. China
- Zhejiang Provincial Innovation Center of Advanced Textile Technology, Zhejiang Sci-Tech University, Shaoxing, 312000, P. R. China
| | - Guan Wu
- National Engineering Lab for Textile Fiber Materials and Processing Technology, Zhejiang Sci-Tech University, Hangzhou, 310018, P. R. China
- Zhejiang Provincial Innovation Center of Advanced Textile Technology, Zhejiang Sci-Tech University, Shaoxing, 312000, P. R. China
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Maltoni P, Baričić M, Barucca G, Spadaro MC, Arbiol J, Yaacoub N, Peddis D, Mathieu R. Tunable particle-agglomeration and magnetic coupling in bi-magnetic nanocomposites. Phys Chem Chem Phys 2023; 25:27817-27828. [PMID: 37814895 DOI: 10.1039/d3cp03689h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/11/2023]
Abstract
A set of non-stoichiometric Zn-Co-ferrite nanoparticles (NPs) was prepared by thermal decomposition of metallic complexes, in the presence of oleic acid, and, after a ligand-exchange process, was coated by a hydrophilic surfactant: these NPs were used as seeds in a sol-gel self-combustion synthesis to prepare nanocomposites (NCs) with a fixed weight ratio. Our focus here is the development of an efficient synthetic approach to control the magnetic coupling between a hard-magnetic matrix (Sr-ferrite) and NPs. The physico-chemical synthetic conditions (temperature, pH, colloidal stability) were optimized in order to tune their effect on the final particles' agglomeration in the matrix. We demonstrate that our synthetic approach is a novel way to produce strongly magnetically coupled NCs, where the final extrinsic properties could be tuned by controlling (i) the agglomeration of seeds in the matrix and (ii) their elemental doping.
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Affiliation(s)
- Pierfrancesco Maltoni
- Department of Materials Science and Engineering, Uppsala University, Box 35, Uppsala, 751 03, Sweden.
| | - Miran Baričić
- Dipartimento di Chimica e Chimica Industriale & INSTM, nM2-Lab, Università degli Studi di, Genova, Via Dodecaneso 31, Genova, 1-16146, Italy.
| | - Gianni Barucca
- Dipartimento di Scienze e Ingegneria della Materia dell'Ambiente ed Urbanistica - SIMAU, Università Politecnica delle Marche, Ancona 60131, Italy
- Consiglio Nazionale delle Ricerche, Istituto di Strttura della Materia, nM2-lab, Monterotondo Scalo (RM), 00015, Italy
| | - Maria Chiara Spadaro
- Dipartimento di Scienze e Ingegneria della Materia dell'Ambiente ed Urbanistica - SIMAU, Università Politecnica delle Marche, Ancona 60131, Italy
| | - Jordi Arbiol
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193, Barcelona, Catalonia, Spain
- ICREA, Pg. Lluís Companys 23, 08020, Barcelona, Catalonia, Spain
| | - Nader Yaacoub
- Le Mans Université, Institut des Molécules et Matériaux du Mans, CNRS UMR-6283, Avenue Olivier Messiaen, Le Mans, 72085, France
| | - Davide Peddis
- Dipartimento di Chimica e Chimica Industriale & INSTM, nM2-Lab, Università degli Studi di, Genova, Via Dodecaneso 31, Genova, 1-16146, Italy.
- Consiglio Nazionale delle Ricerche, Istituto di Strttura della Materia, nM2-lab, Monterotondo Scalo (RM), 00015, Italy
| | - Roland Mathieu
- Department of Materials Science and Engineering, Uppsala University, Box 35, Uppsala, 751 03, Sweden.
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8
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Kadian A, Manikandan V, Dev K, Kumar V, Yang CJ, Lin BH, Chen CL, Dong CL, Asokan K, Annapoorni S. Probing size-dependent defects in zinc oxide using synchrotron techniques: impact on photocatalytic efficiency. Phys Chem Chem Phys 2023; 25:25639-25653. [PMID: 37721171 DOI: 10.1039/d3cp02923a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/19/2023]
Abstract
In the present study, synchrotron-based X-ray diffraction (XRD), X-ray absorption spectroscopy (XAS) and X-ray excited optical luminescence (XEOL) have been used to investigate the induced defect states in metal oxide nanomaterials. Specifically, two synthesis approaches have been followed to develop unique nano-sized peanut-shaped (N-ZnO) nanostructures and micron-sized hexagonal rods (M-ZnO). XANES analysis at the Zn K-edge revealed the presence of defect states with a divalent oxidation state of zinc (Zn2+) in a tetrahedral structure. Furthermore, XAS measurements performed at the Zn L3,2-edge and O K-edge confirm higher oxygen-related defects in M-ZnO, while N-ZnO appeared to have a higher concentration of surface defects due to size confinement. Moreover, the in-line XEOL and time dependent-XEOL measurements exposed the radiative excitonic recombination phenomena occurring in the band-tailing region as a function of absorption length, X-ray energy excitation, and time. Based on the chronology developed in the defect state improvement, a possible energy band diagram is proposed to accurately locate the defect states in the two systems. Furthermore, the increased absorption intensity at the Zn L3,2-edge and the O K-edge under the UV lamp suggests delayed recombination of electrons and holes, highlighting their potential use as photo catalysts. The photocatalytic activity degrading the rhodamine B dye established M-ZnO as a superior catalyst with a rapid degradation rate and significant mineralization. Overall, this work provides valuable insights into ZnO defect states and provides a foundation for efficient advanced materials for environmental or other optoelectronic applications.
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Affiliation(s)
- Ankit Kadian
- Department of Physics and Astrophysics, University of Delhi, Delhi - 110007, India.
| | - V Manikandan
- Department of Physics and Astrophysics, University of Delhi, Delhi - 110007, India.
| | - Kapil Dev
- Department of Physics and Astrophysics, University of Delhi, Delhi - 110007, India.
| | - Vishnu Kumar
- New Chemistry Unit, JNCASR, Jakkur, Bengaluru, Karnataka, 560064, India
| | - Cheng-Jie Yang
- Department of Physics, Tamkang University, Tamsui 251301, Taiwan
| | - Bi-Hsuan Lin
- National Synchrotron Radiation Research Center (NSRRC), Hsinchu 30076, Taiwan
| | - C L Chen
- National Synchrotron Radiation Research Center (NSRRC), Hsinchu 30076, Taiwan
| | - C L Dong
- Department of Physics, Tamkang University, Tamsui 251301, Taiwan
| | - K Asokan
- Department of Physics & Centre for Interdisciplinary Research, University of Petroleum and Energy Studies (UPES), Dehradun, Uttarakhand, 248007, India
| | - S Annapoorni
- Department of Physics and Astrophysics, University of Delhi, Delhi - 110007, India.
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9
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Kannan P, Maduraiveeran G. Metal Oxides Nanomaterials and Nanocomposite-Based Electrochemical Sensors for Healthcare Applications. BIOSENSORS 2023; 13:bios13050542. [PMID: 37232903 DOI: 10.3390/bios13050542] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 04/17/2023] [Accepted: 05/09/2023] [Indexed: 05/27/2023]
Abstract
Wide-ranging research efforts have been directed to prioritize scientific and technological inventions for healthcare monitoring. In recent years, the effective utilization of functional nanomaterials in various electroanalytical measurements realized a rapid, sensitive, and selective detection and monitoring of a wide range of biomarkers in body fluids. Owing to good biocompatibility, high organic capturing ability, strong electrocatalytic activity, and high robustness, transition metal oxide-derived nanocomposites have led to enhancements in sensing performances. The aim of the present review is to describe key advancements of transition metal oxide nanomaterials and nanocomposites-based electrochemical sensors, along with current challenges and prospects towards the development of a highly durable and reliable detection of biomarkers. Moreover, the preparation of nanomaterials, electrode fabrication, sensing mechanism, electrode-bio interface, and performance of metal oxides nanomaterials and nanocomposite-based sensor platforms will be described.
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Affiliation(s)
- Palanisamy Kannan
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, China
| | - Govindhan Maduraiveeran
- Materials Electrochemistry Laboratory, Department of Chemistry, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur 603 203, Tamil Nadu, India
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10
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Kang KT, Corey ZJ, Hwang J, Sharma Y, Paudel B, Roy P, Collins L, Wang X, Lee JW, Oh YS, Kim Y, Yoo J, Lee J, Htoon H, Jia Q, Chen A. Heterogeneous Integration of Freestanding Bilayer Oxide Membrane for Multiferroicity. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2207481. [PMID: 37012611 DOI: 10.1002/advs.202207481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 02/02/2023] [Indexed: 05/27/2023]
Abstract
Transition metal oxides exhibit a plethora of electrical and magnetic properties described by their order parameters. In particular, ferroic orderings offer access to a rich spectrum of fundamental physics phenomena, in addition to a range of technological applications. The heterogeneous integration of ferroelectric and ferromagnetic materials is a fruitful way to design multiferroic oxides. The realization of freestanding heterogeneous membranes of multiferroic oxides is highly desirable. In this study, epitaxial BaTiO3 /La0.7 Sr0.3 MnO3 freestanding bilayer membranes are fabricated using pulsed laser epitaxy. The membrane displays ferroelectricity and ferromagnetism above room temperature accompanying the finite magnetoelectric coupling constant. This study reveals that a freestanding heterostructure can be used to manipulate the structural and emergent properties of the membrane. In the absence of the strain caused by the substrate, the change in orbital occupancy of the magnetic layer leads to the reorientation of the magnetic easy-axis, that is, perpendicular magnetic anisotropy. These results of designing multiferroic oxide membranes open new avenues to integrate such flexible membranes for electronic applications.
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Affiliation(s)
- Kyeong Tae Kang
- Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA
- Department of Physics, Kyungpook National University, Daegu, 41566, South Korea
| | - Zachary J Corey
- Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA
- Department of Materials Design and Innovation, University of Buffalo - The State University of New York, Buffalo, NY, 14260, USA
| | - Jaejin Hwang
- Department of Physics, Pusan National University, Busan, 46241, South Korea
| | - Yogesh Sharma
- Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA
| | - Binod Paudel
- Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA
| | - Pinku Roy
- Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA
- Department of Materials Design and Innovation, University of Buffalo - The State University of New York, Buffalo, NY, 14260, USA
| | - Liam Collins
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
| | - Xueijing Wang
- Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA
| | - Joon Woo Lee
- Department of Physics, Ulsan National Institute of Science and Technology, Ulsan, 44919, South Korea
| | - Yoon Seok Oh
- Department of Physics, Ulsan National Institute of Science and Technology, Ulsan, 44919, South Korea
| | - Yeonhoo Kim
- Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA
- Interdisciplinary Materials Measurement Institute, Korea Research Institute of Standards and Science (KRISS), Daejeon, 34133, South Korea
| | - Jinkyoung Yoo
- Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA
| | - Jaekwang Lee
- Department of Physics, Pusan National University, Busan, 46241, South Korea
| | - Han Htoon
- Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA
| | - Quanxi Jia
- Department of Materials Design and Innovation, University of Buffalo - The State University of New York, Buffalo, NY, 14260, USA
| | - Aiping Chen
- Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA
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11
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MacManus-Driscoll JL, Wu R, Li W. Interface-related phenomena in epitaxial complex oxide ferroics across different thin film platforms: opportunities and challenges. MATERIALS HORIZONS 2023; 10:1060-1086. [PMID: 36815609 PMCID: PMC10068909 DOI: 10.1039/d2mh01527g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 02/16/2023] [Indexed: 06/18/2023]
Abstract
Interfaces in complex oxides give rise to fascinating new physical phenomena arising from the interconnected spin, lattice, charge and orbital degrees of freedom. Most commonly, interfaces are engineered in epitaxial superlattice films. Of growing interest also are epitaxial vertically aligned nanocomposite films where interfaces form by self-assembly. These two thin film forms offer different capabilities for materials tuning and have been explored largely separately from one another. Ferroics (ferroelectric, ferromagnetic, multiferroic) are among the most fascinating phenomena to be manipulated using interface effects. Hence, in this review we compare and contrast the ferroic properties that arise in these two different film forms, highlighting exemplary materials combinations which demonstrate novel, enhanced and/or emergent ferroic functionalities. We discuss the origins of the observed functionalities and propose where knowledge can be translated from one materials form to another, to potentially produce new functionalities. Finally, for the two different film forms we present a perspective on underexplored/emerging research directions.
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Affiliation(s)
| | - Rui Wu
- Department of Materials Science and Metallurgy, University of Cambridge, Cambridge, CB3 0FS, UK.
- Spin-X Institute, School of Physics and Optoelectronics, State Key Laboratory of Luminescent Materials and Devices, Guangdong-Hong Kong-Macao Joint Laboratory of Optoelectronic and Magnetic Functional Materials, South China University of Technology, Guangzhou 511442, China
| | - Weiwei Li
- Department of Materials Science and Metallurgy, University of Cambridge, Cambridge, CB3 0FS, UK.
- MIIT Key Laboratory of Aerospace Information Materials and Physics, State Key Laboratory of Mechanics and Control of Mechanical Structures, College of Physics, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China
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12
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Li M, Chen P, Zhang Y, Zhang Y, Liu Z, Tang C, Chung JY, Gu M, Li J, Huang Z, Chow GM, Li C, Pennycook SJ. Atomic Origins of Enhanced Ferroelectricity in Nanocolumnar PbTiO 3 /PbO Composite Thin Films. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2203201. [PMID: 36593529 DOI: 10.1002/smll.202203201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Indexed: 06/17/2023]
Abstract
Nanocomposite films hold great promise for multifunctional devices by integrating different functionalities within a single film. The microstructure of the precipitate/secondary phase is an essential element in designing composites' properties. The interphase strain between the matrix and secondary phase is responsible for strain-mediated functionalities, such as magnetoelectric coupling and ferroelectricity. However, a quantitative microstructure-dependent interphase strain characterization has been scarcely studied. Here, it is demonstrated that the PbTiO3 (PTO)/PbO composite system can be prepared in nano-spherical and nanocolumnar configurations by tuning the misfit strain, confirmed by a three-dimensional reconstructive microscopy technique. With the atomic resolution quantitative microscopy with a depth resolution of a few nanometers, it is discovered that the strained region in PTO is much larger and more uniform in nanocolumnar compared to nano-spherical composites, resulting in much enhanced ferroelectric properties. The interphase strain between PbO and PTO in the nanocolumnar structure leads to a giant c/a ratio of 1.20 (bulk value of 1.06), accompanied by a Ti polarization displacement of 0.48 Å and an effective ferroelectric polarization of 241.7 µC cm-2 , three times compared to the bulk value. The quantitative atomic-scale strain and polarization analysis on the interphase strain provides an important guideline for designing ferroelectric nanocomposites.
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Affiliation(s)
- Mengsha Li
- Department of Materials Science and Engineering, National University of Singapore, Singapore, 117575, Singapore
- Department of Materials Science and Engineering, University of Toronto, Toronto, ON M5S 3E4, Canada
| | - Pingfan Chen
- Department of Materials Science and Engineering, National University of Singapore, Singapore, 117575, Singapore
- Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institutes of Physical Science and Information Technology, Anhui University, Hefei, Anhui, 230601, China
| | - Yingli Zhang
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
- Guangdong Provincial Key Laboratory of Functional Oxide Materials and Devices, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Yuan Zhang
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
- Guangdong Provincial Key Laboratory of Functional Oxide Materials and Devices, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Zhenghao Liu
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
- Guangdong Provincial Key Laboratory of Functional Oxide Materials and Devices, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Chunhua Tang
- Department of Materials Science and Engineering, National University of Singapore, Singapore, 117575, Singapore
| | - Jing Yang Chung
- Department of Materials Science and Engineering, National University of Singapore, Singapore, 117575, Singapore
| | - Mingqiang Gu
- Department of Physics, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Junxue Li
- Department of Physics, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Zhen Huang
- Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institutes of Physical Science and Information Technology, Anhui University, Hefei, Anhui, 230601, China
- NUSNNI-Nanocore, National University of Singapore, Singapore, 117411, Singapore
- Stony Brook Institute at Anhui University, Anhui University, Hefei, Anhui, 230039, China
| | - Gan Moog Chow
- Department of Materials Science and Engineering, National University of Singapore, Singapore, 117575, Singapore
| | - Changjian Li
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
- Guangdong Provincial Key Laboratory of Functional Oxide Materials and Devices, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Stephen J Pennycook
- Department of Materials Science and Engineering, National University of Singapore, Singapore, 117575, Singapore
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13
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Mi J, Chen J, Chen X, Liu X, Li J. Recent Status and Developments of Vacancies Modulation in the ABO 3 Perovskites for Catalytic Applications. Chemistry 2023; 29:e202202713. [PMID: 36300867 DOI: 10.1002/chem.202202713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Indexed: 11/07/2022]
Abstract
Perovskite oxides (ABO3 ) have attracted comprehensive interest for wide range of functional applications (especially for chemical catalysis) due to their high design flexibility, controllable vacancies sites creation, abundant chemical properties, and stable crystal structure. Herein, the previous research and potential development of ABO3 through adjusting the vacancy at different sites (A-site, B-site, and O-site) to enhance catalytic performance are systematically analyzed and generalized. Briefly, the ABO3 with different vacancies sites prepared by multifarious direct and indirect methods, accompanied with the improved physical-chemical properties, endow them with distinct and intensified development of catalysis application. In addition, the impressive optimization proved by the vacancies sites adjustment over the ABO3 is studied to continuously facilitate the advance in some common catalysis reactions, further expanding to other optimized functional applications. At last, the constructive suggestions for fine regulation and analysis of vacancies sites over ABO3 are also put forward.
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Affiliation(s)
- Jinxing Mi
- State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment, Tsinghua University, Beijing, 100084, P. R. China.,State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics Chinese Academy of Sciences, Dalian, 116023, P. R. China
| | - Jianjun Chen
- State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment, Tsinghua University, Beijing, 100084, P. R. China
| | - Xiaoping Chen
- State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment, Tsinghua University, Beijing, 100084, P. R. China
| | - Xiaoqing Liu
- State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment, Tsinghua University, Beijing, 100084, P. R. China.,School of Environment and Safety Engineering, North University of China, Taiyuan, 030051, P. R. China
| | - Junhua Li
- State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment, Tsinghua University, Beijing, 100084, P. R. China
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14
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Chen S, Zhang Q, Rong D, Xu Y, Zhang J, Pei F, Bai H, Shang YX, Lin S, Jin Q, Hong H, Wang C, Yan W, Guo H, Zhu T, Gu L, Gong Y, Li Q, Wang L, Liu GQ, Jin KJ, Guo EJ. Braiding Lateral Morphotropic Grain Boundaries in Homogenetic Oxides. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2206961. [PMID: 36281802 DOI: 10.1002/adma.202206961] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 10/14/2022] [Indexed: 06/16/2023]
Abstract
Interfaces formed by correlated oxides offer a critical avenue for discovering emergent phenomena and quantum states. However, the fabrication of oxide interfaces with variable crystallographic orientations and strain states integrated along a film plane is extremely challenging by conventional layer-by-layer stacking or self-assembling. Here, the creation of morphotropic grain boundaries (GBs) in laterally interconnected cobaltite homostructures is reported. Single-crystalline substrates and suspended ultrathin freestanding membranes provide independent templates for coherent epitaxy and constraint on the growth orientation, resulting in seamless and atomically sharp GBs. Electronic states and magnetic behavior in hybrid structures are laterally modulated and isolated by GBs, enabling artificially engineered functionalities in the planar matrix. This work offers a simple and scalable method for fabricating unprecedented innovative interfaces through controlled synthesis routes as well as providing a platform for exploring potential applications in neuromorphics, solid-state batteries, and catalysis.
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Affiliation(s)
- Shengru Chen
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
- Department of Physics & Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Qinghua Zhang
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
| | - Dongke Rong
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
| | - Yue Xu
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
| | - Jinfeng Zhang
- Hefei National Laboratory for Physical Science at the Microscale, University of Science and Technology of China, Hefei, 230026, China
| | - Fangfang Pei
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, 230029, China
| | - He Bai
- Spallation Neutron Source Science Center, Dongguan, 523803, China
| | - Yan-Xing Shang
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
| | - Shan Lin
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
| | - Qiao Jin
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
- Department of Physics & Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Haitao Hong
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
- Department of Physics & Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Can Wang
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
- Department of Physics & Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
- Songshan Lake Materials Laboratory, Dongguan, Guangdong, 523808, China
| | - Wensheng Yan
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, 230029, China
| | - Haizhong Guo
- Key Laboratory of Material Physics & School of Physics and Microelectronics, Zhengzhou University, Zhengzhou, 450001, China
| | - Tao Zhu
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
- Department of Physics & Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
- Spallation Neutron Source Science Center, Dongguan, 523803, China
- Songshan Lake Materials Laboratory, Dongguan, Guangdong, 523808, China
| | - Lin Gu
- National Center for Electron Microscopy in Beijing and School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China
| | - Yu Gong
- Department of Physics and Astronomy, College of Charleston, 58 Coming Street, Charleston, SC, 29424, USA
| | - Qian Li
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, 230029, China
| | - Lingfei Wang
- Hefei National Laboratory for Physical Science at the Microscale, University of Science and Technology of China, Hefei, 230026, China
| | - Gang-Qin Liu
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
- Department of Physics & Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
- Songshan Lake Materials Laboratory, Dongguan, Guangdong, 523808, China
| | - Kui-Juan Jin
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
- Department of Physics & Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
- Songshan Lake Materials Laboratory, Dongguan, Guangdong, 523808, China
| | - Er-Jia Guo
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
- Department of Physics & Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
- Songshan Lake Materials Laboratory, Dongguan, Guangdong, 523808, China
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15
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Sharma Y, Paudel B, Huon A, Schneider MM, Roy P, Corey Z, Schönemann R, Jones AC, Jaime M, Yarotski DA, Charlton T, Fitzsimmons MR, Jia Q, Pettes MT, Yang P, Chen A. Induced Ferromagnetism in Epitaxial Uranium Dioxide Thin Films. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2203473. [PMID: 36209382 PMCID: PMC9685444 DOI: 10.1002/advs.202203473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 08/08/2022] [Indexed: 06/16/2023]
Abstract
Actinide materials have various applications that range from nuclear energy to quantum computing. Most current efforts have focused on bulk actinide materials. Tuning functional properties by using strain engineering in epitaxial thin films is largely lacking. Using uranium dioxide (UO2 ) as a model system, in this work, the authors explore strain engineering in actinide epitaxial thin films and investigate the origin of induced ferromagnetism in an antiferromagnet UO2 . It is found that UO2+ x thin films are hypostoichiometric (x<0) with in-plane tensile strain, while they are hyperstoichiometric (x>0) with in-plane compressive strain. Different from strain engineering in non-actinide oxide thin films, the epitaxial strain in UO2 is accommodated by point defects such as vacancies and interstitials due to the low formation energy. Both epitaxial strain and strain relaxation induced point defects such as oxygen/uranium vacancies and oxygen/uranium interstitials can distort magnetic structure and result in magnetic moments. This work reveals the correlation among strain, point defects and ferromagnetism in strain engineered UO2+ x thin films and the results offer new opportunities to understand the influence of coupled order parameters on the emergent properties of many other actinide thin films.
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Affiliation(s)
- Yogesh Sharma
- Center for Integrated Nanotechnologies (CINT)Los Alamos National LaboratoryLos AlamosNM87545USA
- Glenn T. Seaborg InstituteLos Alamos National LaboratoryLos AlamosNM87545USA
| | - Binod Paudel
- Center for Integrated Nanotechnologies (CINT)Los Alamos National LaboratoryLos AlamosNM87545USA
| | - Amanda Huon
- Neutron Scattering DivisionOak Ridge National LaboratoryOak RidgeTN37831USA
- Materials Science and Technology DivisionOak Ridge National LaboratoryOak RidgeTN37831USA
- Present address:
Department of PhysicsSaint Joseph's UniversityPhiladelphiaPA19131USA
| | - Matthew M. Schneider
- Materials Science and Technology DivisionLos Alamos National LaboratoryLos AlamosNM87545USA
| | - Pinku Roy
- Department of Materials Design and InnovationUniversity at BuffaloThe State University of New YorkBuffaloNY14260USA
| | - Zachary Corey
- Department of Materials Design and InnovationUniversity at BuffaloThe State University of New YorkBuffaloNY14260USA
| | - Rico Schönemann
- National High Magnetic Field Laboratory (NHMFL)Los Alamos National LaboratoryLos AlamosNM87545USA
| | - Andrew C. Jones
- Center for Integrated Nanotechnologies (CINT)Los Alamos National LaboratoryLos AlamosNM87545USA
| | - Marcelo Jaime
- National High Magnetic Field Laboratory (NHMFL)Los Alamos National LaboratoryLos AlamosNM87545USA
| | - Dmitry A. Yarotski
- Center for Integrated Nanotechnologies (CINT)Los Alamos National LaboratoryLos AlamosNM87545USA
| | - Timothy Charlton
- Neutron Scattering DivisionOak Ridge National LaboratoryOak RidgeTN37831USA
| | - Michael R. Fitzsimmons
- Neutron Scattering DivisionOak Ridge National LaboratoryOak RidgeTN37831USA
- Materials Science and Technology DivisionOak Ridge National LaboratoryOak RidgeTN37831USA
- Department of Physics and AstronomyUniversity of TennesseeKnoxvilleTN37996USA
| | - Quanxi Jia
- Department of Materials Design and InnovationUniversity at BuffaloThe State University of New YorkBuffaloNY14260USA
| | - Michael T. Pettes
- Center for Integrated Nanotechnologies (CINT)Los Alamos National LaboratoryLos AlamosNM87545USA
| | - Ping Yang
- Glenn T. Seaborg InstituteLos Alamos National LaboratoryLos AlamosNM87545USA
| | - Aiping Chen
- Center for Integrated Nanotechnologies (CINT)Los Alamos National LaboratoryLos AlamosNM87545USA
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16
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Corey ZJ, Lu P, Zhang G, Sharma Y, Rutherford BX, Dhole S, Roy P, Wang Z, Wu Y, Wang H, Chen A, Jia Q. Structural and Optical Properties of High Entropy (La,Lu,Y,Gd,Ce)AlO 3 Perovskite Thin Films. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2202671. [PMID: 36026570 PMCID: PMC9561869 DOI: 10.1002/advs.202202671] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Revised: 07/12/2022] [Indexed: 06/15/2023]
Abstract
Mixtures of Ce-doped rare-earth aluminum perovskites are drawing a significant amount of attention as potential scintillating devices. However, the synthesis of complex perovskite systems leads to many challenges. Designing the A-site cations with an equiatomic ratio allows for the stabilization of a single-crystal phase driven by an entropic regime. This work describes the synthesis of a highly epitaxial thin film of configurationally disordered rare-earth aluminum perovskite oxide (La0.2 Lu0.2 Y0.2 Gd0.2 Ce0.2 )AlO3 and characterizes the structural and optical properties. The thin films exhibit three equivalent epitaxial domains having an orthorhombic structure resulting from monoclinic distortion of the perovskite cubic cell. An excitation of 286.5 nm from Gd3+ and energy transfer to Ce3+ with 405 nm emission are observed, which represents the potential for high-energy conversion. These experimental results also offer the pathway to tunable optical properties of high-entropy rare-earth epitaxial perovskite films for a range of applications.
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Affiliation(s)
- Zachary J. Corey
- Department of Materials Design and InnovationUniversity at BuffaloBuffaloNY14260USA
- Center for Integrated Nanotechnologies (CINT)Los Alamos National LaboratoryLos AlamosNM87545USA
| | - Ping Lu
- Sandia National LaboratoriesAlbuquerqueNM87185USA
| | - Guangran Zhang
- Kazuo Inamori School of EngineeringNew York State College of CeramicsAlfred UniversityAlfredNY14802USA
| | - Yogesh Sharma
- Center for Integrated Nanotechnologies (CINT)Los Alamos National LaboratoryLos AlamosNM87545USA
| | - Bethany X. Rutherford
- Center for Integrated Nanotechnologies (CINT)Los Alamos National LaboratoryLos AlamosNM87545USA
- Department Electrical and Computer EngineeringSchool of Materials EngineeringPurdue UniversityWest LafayetteIN47907USA
| | - Samyak Dhole
- Department of Materials Design and InnovationUniversity at BuffaloBuffaloNY14260USA
| | - Pinku Roy
- Department of Materials Design and InnovationUniversity at BuffaloBuffaloNY14260USA
- Center for Integrated Nanotechnologies (CINT)Los Alamos National LaboratoryLos AlamosNM87545USA
| | - Zhehui Wang
- Physics DivisionLos Alamos National LaboratoryLos AlamosNM87545USA
| | - Yiquan Wu
- Kazuo Inamori School of EngineeringNew York State College of CeramicsAlfred UniversityAlfredNY14802USA
| | - Haiyan Wang
- Department Electrical and Computer EngineeringSchool of Materials EngineeringPurdue UniversityWest LafayetteIN47907USA
| | - Aiping Chen
- Center for Integrated Nanotechnologies (CINT)Los Alamos National LaboratoryLos AlamosNM87545USA
| | - Quanxi Jia
- Department of Materials Design and InnovationUniversity at BuffaloBuffaloNY14260USA
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17
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Sirvent JD, Carmona A, Rapenne L, Chiabrera F, Morata A, Burriel M, Baiutti F, Tarancón A. Nanostructured La 0.75Sr 0.25Cr 0.5Mn 0.5O 3-Ce 0.8Sm 0.2O 2 Heterointerfaces as All-Ceramic Functional Layers for Solid Oxide Fuel Cell Applications. ACS APPLIED MATERIALS & INTERFACES 2022; 14:42178-42187. [PMID: 36070857 PMCID: PMC9501924 DOI: 10.1021/acsami.2c14044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 08/24/2022] [Indexed: 06/15/2023]
Abstract
The use of nanostructured interfaces and advanced functional materials opens up a new playground in the field of solid oxide fuel cells. In this work, we present two all-ceramic thin-film heterostructures based on samarium-doped ceria and lanthanum strontium chromite manganite as promising functional layers for electrode application. The films were fabricated by pulsed laser deposition as bilayers or self-assembled intermixed nanocomposites. The microstructural characterization confirmed the formation of dense, well-differentiated, phases and highlighted the presence of strong cation intermixing in the case of the nanocomposite. The electrochemical properties─solid/gas reactivity and in-plane conductivity─are strongly improved for both heterostructures with respect to the single-phase constituents under anodic conditions (up to fivefold decrease of area-specific resistance and 3 orders of magnitude increase of in-plane conductivity with respect to reference single-phase materials). A remarkable electrochemical activity was also observed for the nanocomposite under an oxidizing atmosphere, with no significant decrease in performance after 400 h of thermal aging. This work shows how the implementation of nanostructuring strategies not only can be used to tune the properties of functional films but also results in a synergistic enhancement of the electrochemical performance, surpassing the parent materials and opening the field for the fabrication of high-performance nanostructured functional layers for application in solid oxide fuel cells and symmetric systems.
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Affiliation(s)
- Juan de
Dios Sirvent
- Department
of Advanced Materials for Energy, Catalonia
Institute for Energy Research (IREC), Jardins de les Dones de Negre 1, Sant Adrià del Besòs, Barcelona 08930, Spain
| | - Albert Carmona
- Department
of Advanced Materials for Energy, Catalonia
Institute for Energy Research (IREC), Jardins de les Dones de Negre 1, Sant Adrià del Besòs, Barcelona 08930, Spain
| | - Laetitia Rapenne
- Univ.
Grenoble Alpes, CNRS, Grenoble INP, LMGP, 38000 Grenoble, France
| | - Francesco Chiabrera
- Department
of Advanced Materials for Energy, Catalonia
Institute for Energy Research (IREC), Jardins de les Dones de Negre 1, Sant Adrià del Besòs, Barcelona 08930, Spain
- Department
of Energy Conversion and Storage, Functional Oxides group, Technical University of Denmark, Fysikvej, 310, 233, 2800, Kgs. Lyngby, Denmark
| | - Alex Morata
- Department
of Advanced Materials for Energy, Catalonia
Institute for Energy Research (IREC), Jardins de les Dones de Negre 1, Sant Adrià del Besòs, Barcelona 08930, Spain
| | - Mónica Burriel
- Univ.
Grenoble Alpes, CNRS, Grenoble INP, LMGP, 38000 Grenoble, France
| | - Federico Baiutti
- Department
of Advanced Materials for Energy, Catalonia
Institute for Energy Research (IREC), Jardins de les Dones de Negre 1, Sant Adrià del Besòs, Barcelona 08930, Spain
- Department
of Materials Chemistry, National Institute
of Chemistry, Hajdrihova
19, Ljubljana SI-1000, Slovenia
| | - Albert Tarancón
- Department
of Advanced Materials for Energy, Catalonia
Institute for Energy Research (IREC), Jardins de les Dones de Negre 1, Sant Adrià del Besòs, Barcelona 08930, Spain
- ICREA, Passeig Lluís Companys 23, 08010 Barcelona, Spain
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18
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Enriquez E, Lu P, Li L, Zhang B, Wang H, Jia Q, Chen A. Reducing leakage current and enhancing polarization in multiferroic 3D super-nanocomposites by microstructure engineering. NANOTECHNOLOGY 2022; 33:405604. [PMID: 35313284 DOI: 10.1088/1361-6528/ac5f98] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 03/21/2022] [Indexed: 06/14/2023]
Abstract
Multiferroic materials have generated great interest due to their potential as functional device materials. Nanocomposites have been increasingly used to design and generate new functionalities by pairing dissimilar ferroic materials, though the combination often introduces new complexity and challenges unforeseeable in single-phase counterparts. The recently developed approaches to fabricate 3D super-nanocomposites (3D-sNC) open new avenues to control and enhance functional properties. In this work, we develop a new 3D-sNC with CoFe2O4(CFO) short nanopillar arrays embedded in BaTiO3(BTO) film matrix via microstructure engineering by alternatively depositing BTO:CFO vertically-aligned nanocomposite layers and single-phase BTO layers. This microstructure engineering method allows encapsulating the relative conducting CFO phase by the insulating BTO phase, which suppress the leakage current and enhance the polarization. Our results demonstrate that microstructure engineering in 3D-sNC offers a new bottom-up method of fabricating advanced nanostructures with a wide range of possible configurations for applications where the functional properties need to be systematically modified.
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Affiliation(s)
- Erik Enriquez
- Department of Physics and Astronomy, University of Texas-Rio Grande Valley (UTRGV), Edinburg, TX-78539, United States of America
| | - Ping Lu
- Sandia National Laboratories, Albuquerque, New Mexico NM-87185, United States of America
| | - Leigang Li
- School of Materials Engineering, Purdue University, West Lafayette, Indiana IN-47907, United States of America
| | - Bruce Zhang
- School of Materials Engineering, Purdue University, West Lafayette, Indiana IN-47907, United States of America
| | - Haiyan Wang
- School of Materials Engineering, Purdue University, West Lafayette, Indiana IN-47907, United States of America
| | - Quanxi Jia
- Department of Materials Design and Innovation, University at Buffalo - The State University of New York, Buffalo, NY-14260, United States of America
- Division of Quantum Phases & Devices, Department of Physics, Konkuk University, Seoul 05029, Republic of Korea
| | - Aiping Chen
- Center for Integrated Nanotechnology (CINT), Los Alamos National Laboratory, Los Alamos, NM-87545, United States of America
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19
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Miao Y, Zhao Y, Zhang S, Shi R, Zhang T. Strain Engineering: A Boosting Strategy for Photocatalysis. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2200868. [PMID: 35304927 DOI: 10.1002/adma.202200868] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 03/02/2022] [Indexed: 06/14/2023]
Abstract
Whilst the photocatalytic technique is considered to be one of the most significant routes to address the energy crisis and global environmental challenges, the solar-to-chemical conversion efficiency is still far from satisfying practical industrial requirements, which can be traced to the suboptimal bandgap and electronic structure of photocatalysts. Strain engineering is a universal scheme that can finely tailor the bandgap and electronic structure of materials, hence supplying a novel avenue to boost their photocatalytic performance. Accordingly, to explore promising directions for certain breakthroughs in strained photocatalysts, an overview on the recent advances of strain engineering from the basics of strain effect, creations of strained materials, as well as characterizations and simulations of strain level is provided. Besides, the potential applications of strain engineering in photocatalysis are summarized, and a vision for the future controllable-electronic-structure photocatalysts by strain engineering is also given. Finally, perspectives on the challenges for future strain-promoted photocatalysis are discussed, placing emphasis on the creation and decoupling of strain effect, and the modification of theoretical frameworks.
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Affiliation(s)
- Yingxuan Miao
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Yunxuan Zhao
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Shuai Zhang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Run Shi
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Tierui Zhang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
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20
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Sun SC, Jiang H, Chen ZY, Chen Q, Ma MY, Zhen L, Song B, Xu CY. Bifunctional WC-Supported RuO 2 Nanoparticles for Robust Water Splitting in Acidic Media. Angew Chem Int Ed Engl 2022; 61:e202202519. [PMID: 35266633 DOI: 10.1002/anie.202202519] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Indexed: 01/14/2023]
Abstract
We report the strong catalyst-support interaction in WC-supported RuO2 nanoparticles (RuO2 -WC NPs) anchored on carbon nanosheets with low loading of Ru (4.11 wt.%), which significantly promotes the oxygen evolution reaction activity with a η10 of 347 mV and a mass activity of 1430 A gRu -1 , eight-fold higher than that of commercial RuO2 (176 A gRu -1 ). Theoretical calculations demonstrate that the strong catalyst-support interaction between RuO2 and the WC support could optimize the surrounding electronic structure of Ru sites to reduce the reaction barrier. Considering the likewise excellent catalytic ability for hydrogen production, an acidic overall water splitting (OWS) electrolyzer with a good stability constructed by bifunctional RuO2 -WC NPs only requires a cell voltage of 1.66 V to afford 10 mA cm-2 . The unique 0D/2D nanoarchitectures rationally combining a WC support with precious metal oxides provides a promising strategy to tradeoff the high catalytic activity and low cost for acidic OWS applications.
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Affiliation(s)
- Shu-Chao Sun
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, P. R. China.,MOE Key Laboratory of Micro-Systems and Micro-Structures Manufacturing, Harbin Institute of Technology, Harbin, 150080, P. R. China
| | - Hao Jiang
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, P. R. China
| | - Zi-Yao Chen
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, P. R. China
| | - Qing Chen
- Sauvage Laboratory for Smart Materials, School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, P. R. China
| | - Ming-Yuan Ma
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, P. R. China
| | - Liang Zhen
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, P. R. China.,MOE Key Laboratory of Micro-Systems and Micro-Structures Manufacturing, Harbin Institute of Technology, Harbin, 150080, P. R. China.,Sauvage Laboratory for Smart Materials, School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, P. R. China
| | - Bo Song
- National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Harbin Institute of Technology, Harbin, 150001, P. R. China
| | - Cheng-Yan Xu
- MOE Key Laboratory of Micro-Systems and Micro-Structures Manufacturing, Harbin Institute of Technology, Harbin, 150080, P. R. China.,Sauvage Laboratory for Smart Materials, School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, P. R. China
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21
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Zheng S, Duley WW, Peng P, Zhou N. Laser modification of Au-CuO-Au structures for improved electrical and electro-optical properties. NANOTECHNOLOGY 2022; 33:245205. [PMID: 35255484 DOI: 10.1088/1361-6528/ac5b52] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 03/07/2022] [Indexed: 06/14/2023]
Abstract
CuO nanomaterials are one of the metal-oxides that received extensive investigations in recent years due to their versatility for applications in high-performance nano-devices. Tailoring the device performance through the engineering of properties in the CuO nanomaterials thus attracted lots of effort. In this paper, we show that nanosecond (ns) laser irradiation is effective in improving the electrical and optoelectrical properties in the copper oxide nanowires (CuO NWs). We find that ns laser irradiation can achieve joining between CuO NWs and interdigital gold electrodes. Meanwhile, the concentration and type of point defects in CuO can be controlled by ns laser irradiation as well. An increase in the concentration of defect centers, together with a reduction in the potential energy barrier at the Au/CuO interfaces due to laser irradiation increases electrical conductivity and enhances photo-conductivity. We demonstrate that the enhanced electrical and photo-conductivity achieved through ns laser irradiation can be beneficial for applications such as resistive switching and photo-detection.
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Affiliation(s)
- Shuo Zheng
- Department of Mechanical and Mechatronics Engineering, University of Waterloo, Ontario, N2L 3G1, Waterloo, Canada
- Centre for Advanced Materials Joining, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada
| | - Walter W Duley
- Centre for Advanced Materials Joining, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada
- Department of Physics and Astronomy, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada
| | - Peng Peng
- Department of Mechanical and Mechatronics Engineering, University of Waterloo, Ontario, N2L 3G1, Waterloo, Canada
- Centre for Advanced Materials Joining, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada
| | - Norman Zhou
- Department of Mechanical and Mechatronics Engineering, University of Waterloo, Ontario, N2L 3G1, Waterloo, Canada
- Centre for Advanced Materials Joining, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada
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22
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Sun S, Jiang H, Chen Z, Chen Q, Ma M, Zhen L, Song B, Xu C. Bifunctional WC‐Supported RuO2 Nanoparticles for Robust Water Splitting in Acidic Media. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202202519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Shuchao Sun
- Harbin Institute of Technology School of Materials Science and Engineering CHINA
| | - Hao Jiang
- Harbin Institute of Technology School of Materials Science and Engineering CHINA
| | - Ziyao Chen
- Harbin Institute of Technology School of Materials Science and Engineering CHINA
| | - Qing Chen
- Harbin Institute of Technology Shenzhen School of Materials Science and Engineering CHINA
| | - Mingyuan Ma
- Harbin Institute of Technology School of Materials Science and Engineering CHINA
| | - Liang Zhen
- Harbin Institute of Technology School of Materials Science and Engineering CHINA
| | - Bo Song
- Harbin Institute of Technology P.O.Box 3010,No.2 Yikuang street 150001 Harbin CHINA
| | - Chengyan Xu
- Harbin Institute of Technology Shenzhen School of Materials Science and Engineering CHINA
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23
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Strain Engineering: A Pathway for Tunable Functionalities of Perovskite Metal Oxide Films. NANOMATERIALS 2022; 12:nano12050835. [PMID: 35269323 PMCID: PMC8912649 DOI: 10.3390/nano12050835] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 02/14/2022] [Accepted: 02/24/2022] [Indexed: 11/16/2022]
Abstract
Perovskite offers a framework that boasts various functionalities and physical properties of interest such as ferroelectricity, magnetic orderings, multiferroicity, superconductivity, semiconductor, and optoelectronic properties owing to their rich compositional diversity. These properties are also uniquely tied to their crystal distortion which is directly affected by lattice strain. Therefore, many important properties of perovskite can be further tuned through strain engineering which can be accomplished by chemical doping or simply element substitution, interface engineering in epitaxial thin films, and special architectures such as nanocomposites. In this review, we focus on and highlight the structure–property relationships of perovskite metal oxide films and elucidate the principles to manipulate the functionalities through different modalities of strain engineering approaches.
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24
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Zhu H, Zhao YY, Ouyang J, Wang K, Cheng H, Su Y. Achieving a Record-High Capacitive Energy Density on Si with Columnar Nanograined Ferroelectric Films. ACS APPLIED MATERIALS & INTERFACES 2022; 14:7805-7813. [PMID: 35104097 DOI: 10.1021/acsami.1c19197] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
High energy density dielectric film capacitors are desirable in modern electronic devices. Their miniaturization and integration into Si-based microsystems create opportunities for in-circuit energy supply, buffering, and conditioning. Here, we present a CMOS (complementary metal oxide semiconductor)-compatible route for the fabrication of BaTiO3 film capacitors on Si with a record-high recoverable energy density and good efficiency (∼242 J/cm3 and ∼76% at 8.75 MV/cm). These BaTiO3 films were sputter-deposited at 350 °C and consisted of slightly compressed superfine columnar nanograins with a (001) texture. Such a nanostructure was endowed with a high breakdown strength, a reduced remnant polarization, and an enhanced maximum polarization, which are accountable for their excellent energy storage performance. Moreover, these BaTiO3 film capacitors displayed a high electrical fatigue resistance, a wide range of operating temperatures, and an excellent frequency stability. With an engineered nanostructure, the prototype perovskite of BaTiO3 has shown great promise for capacitive energy storage applications.
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Affiliation(s)
- Hanfei Zhu
- Institute of Advanced Energy Materials and Chemistry, Jinan Engineering Laboratory for Multi-scale Functional Materials, Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Yu-Yao Zhao
- Key Laboratory for Liquid-Solid Structure Evolution and Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University, Jinan 250061, China
| | - Jun Ouyang
- Institute of Advanced Energy Materials and Chemistry, Jinan Engineering Laboratory for Multi-scale Functional Materials, Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Kun Wang
- Key Laboratory for Liquid-Solid Structure Evolution and Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University, Jinan 250061, China
| | - Hongbo Cheng
- Institute of Advanced Energy Materials and Chemistry, Jinan Engineering Laboratory for Multi-scale Functional Materials, Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Yu Su
- Department of Mechanics, School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, China
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25
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Zhong G, An F, Qu K, Dong Y, Yang Z, Dai L, Xie S, Huang R, Luo Z, Li J. Highly Flexible Freestanding BaTiO 3 -CoFe 2 O 4 Heteroepitaxial Nanostructure Self-Assembled with Room-Temperature Multiferroicity. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2104213. [PMID: 34816590 DOI: 10.1002/smll.202104213] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Revised: 09/28/2021] [Indexed: 06/13/2023]
Abstract
Multiferroics with simultaneous electric and magnetic orderings are highly desirable for sensing, actuation, data storage, and bio-inspired systems, yet developing flexible materials with robust multiferroic properties at room temperature is a long-term challenge. Utilizing water-soluble Sr3 Al2 O6 as a sacrificial layer, the authors have successfully self-assembled a freestanding BaTiO3 -CoFe2 O4 heteroepitaxial nanostructure via pulse laser deposition, and confirmed its epitaxial growth in both out-of-plane and in-plane directions, with highly ordered CoFe2 O4 nanopillars embedded in a single crystalline BaTiO3 matrix free of substrate constraint. The freestanding nanostructure enjoys super flexibility and mechanical integrity, not only capable of spontaneously curving into a roll, but can also be bent with a radius as small as 4.23 µm. Moreover, piezoelectricity and ferromagnetism are demonstrated at both microscopic and macroscopic scales, confirming its robust multiferroicity at room temperature. This work establishes an effective route for flexible multiferroic materials, which have the potential for various practical applications.
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Affiliation(s)
- Gaokuo Zhong
- Shenzhen Key Laboratory of Nanobiomechanics, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong, 518055, China
| | - Feng An
- Shenzhen Key Laboratory of Nanobiomechanics, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong, 518055, China
| | - Ke Qu
- Shenzhen Key Laboratory of Nanobiomechanics, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong, 518055, China
| | - Yongqi Dong
- Shenzhen Key Laboratory of Nanobiomechanics, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong, 518055, China
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230029, China
| | - Zhenzhong Yang
- Key Laboratory of Polar Materials and Devices, East China Normal University, Shanghai, Shanghai, 200241, China
| | - Liyufen Dai
- School of Materials Science and Engineering, Xiangtan University, Xiangtan, Hunan, 411105, China
| | - Shuhong Xie
- School of Materials Science and Engineering, Xiangtan University, Xiangtan, Hunan, 411105, China
| | - Rong Huang
- Key Laboratory of Polar Materials and Devices, East China Normal University, Shanghai, Shanghai, 200241, China
| | - Zhenlin Luo
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230029, China
| | - Jiangyu Li
- Shenzhen Key Laboratory of Nanobiomechanics, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong, 518055, China
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
- Guangdong Provincial Key Laboratory of Functional Oxide Materials and Devices, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
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26
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Zhang W, Zhang J, Cheng S, Rouleau CM, Kisslinger K, Zhang L, Zhu Y, Ward TZ, Eres G. Exploring the Spatial Control of Topotactic Phase Transitions Using Vertically Oriented Epitaxial Interfaces. NANO-MICRO LETTERS 2021; 14:2. [PMID: 34859320 PMCID: PMC8639884 DOI: 10.1007/s40820-021-00752-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 10/18/2021] [Indexed: 06/13/2023]
Abstract
Engineering oxygen vacancy formation and distribution is a powerful route for controlling the oxygen sublattice evolution that affects diverse functional behavior. The controlling of the oxygen vacancy formation process is particularly important for inducing topotactic phase transitions that occur by transformation of the oxygen sublattice. Here we demonstrate an epitaxial nanocomposite approach for exploring the spatial control of topotactic phase transition from a pristine perovskite phase to an oxygen vacancy-ordered brownmillerite (BM) phase in a model oxide La0.7Sr0.3MnO3 (LSMO). Incorporating a minority phase NiO in LSMO films creates ultrahigh density of vertically aligned epitaxial interfaces that strongly influence the oxygen vacancy formation and distribution in LSMO. Combined structural characterizations reveal strong interactions between NiO and LSMO across the epitaxial interfaces leading to a topotactic phase transition in LSMO accompanied by significant morphology evolution in NiO. Using the NiO nominal ratio as a single control parameter, we obtain intermediate topotactic nanostructures with distinct distribution of the transformed LSMO-BM phase, which enables systematic tuning of magnetic and electrical transport properties. The use of self-assembled heterostructure interfaces by the epitaxial nanocomposite platform enables more versatile design of topotactic phase structures and correlated functionalities that are sensitive to oxygen vacancies.
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Affiliation(s)
- Wenrui Zhang
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA.
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang, 315201, P. R. China.
| | - Jie Zhang
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
| | - Shaobo Cheng
- Condensed Matter Physics and Materials Science, Brookhaven National Laboratory, Upton, NY, 11973, USA
| | - Christopher M Rouleau
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
| | - Kim Kisslinger
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY, 11973, USA
| | - Lihua Zhang
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY, 11973, USA
| | - Yimei Zhu
- Condensed Matter Physics and Materials Science, Brookhaven National Laboratory, Upton, NY, 11973, USA
| | - Thomas Z Ward
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
| | - Gyula Eres
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA.
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27
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Qian K, Yan Y, Xi S, Wei T, Dai Y, Yan X, Kobayashi H, Wang S, Liu W, Li R. Elucidating the Strain-Vacancy-Activity Relationship on Structurally Deformed Co@CoO Nanosheets for Aqueous Phase Reforming of Formaldehyde. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2102970. [PMID: 34636132 DOI: 10.1002/smll.202102970] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 08/03/2021] [Indexed: 06/13/2023]
Abstract
Lattice strain modulation and vacancy engineering are both effective approaches to control the catalytic properties of heterogeneous catalysts. Here, Co@CoO heterointerface catalysts are prepared via the controlled reduction of CoO nanosheets. The experimental quantifications of lattice strain and oxygen vacancy concentration on CoO, as well as the charge transfer across the Co-CoO interface are all linearly correlated to the catalytic activity toward the aqueous phase reforming of formaldehyde to produce hydrogen. Mechanistic investigations by spectroscopic measurements and density functional theory calculations elucidate the bifunctional nature of the oxygen-vacancy-rich Co-CoO interfaces, where the Co and the CoO sites are responsible for CH bond cleavage and OH activation, respectively. Optimal catalytic activity is achieved by the sample reduced at 350 °C, Co@CoO-350 which exhibits the maximum concentration of Co-CoO interfaces, the maximum concentration of oxygen vacancies, a lattice strain of 5.2% in CoO, and the highest aqueous phase formaldehyde reforming turnover frequency of 50.4 h-1 at room temperature. This work provides not only new insights into the strain-vacancy-activity relationship at bifunctional catalytic interfaces, but also a facile synthetic approach to prepare heterostructures with highly tunable catalytic activities.
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Affiliation(s)
- Kaicheng Qian
- National Engineering Lab for Textile Fiber Materials and Processing Technology, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Yong Yan
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore, 637459, Singapore
- Cambridge Centre for Advanced Research and Education, 1 CREATE Way, Singapore, 138602, Singapore
| | - Shibo Xi
- Institute of Chemical and Engineering Science Limited, Agency for Science Technology and Research (A*STAR), 1 Pesek Road, Singapore, 627833, Singapore
| | - Tong Wei
- National Engineering Lab for Textile Fiber Materials and Processing Technology, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Yihu Dai
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Xiaoqing Yan
- National Engineering Lab for Textile Fiber Materials and Processing Technology, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Hisayoshi Kobayashi
- Emeritus Professor of Department of Chemistry and Materials Technology, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan
| | - Sheng Wang
- National Engineering Lab for Textile Fiber Materials and Processing Technology, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Wen Liu
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore, 637459, Singapore
- Cambridge Centre for Advanced Research and Education, 1 CREATE Way, Singapore, 138602, Singapore
| | - Renhong Li
- National Engineering Lab for Textile Fiber Materials and Processing Technology, Zhejiang Sci-Tech University, Hangzhou, 310018, China
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Wang J, Ma L, Wang X, Wang X, Yao J, Yi Q, Tang R, Zou G. Sub‐Nanometer Thick Wafer‐Size NiO Films with Room‐Temperature Ferromagnetic Behavior. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202110185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jiong Wang
- College of Energy Key Lab of Advanced Optical Manufacturing Technologies of Jiangsu Province & Key Lab of Modern Optical Technologies of Education Ministry of China Soochow University Suzhou 215123 China
| | - Liang Ma
- College of Energy Key Lab of Advanced Optical Manufacturing Technologies of Jiangsu Province & Key Lab of Modern Optical Technologies of Education Ministry of China Soochow University Suzhou 215123 China
| | - Xiangyi Wang
- College of Energy Key Lab of Advanced Optical Manufacturing Technologies of Jiangsu Province & Key Lab of Modern Optical Technologies of Education Ministry of China Soochow University Suzhou 215123 China
| | - Xiaohan Wang
- College of Energy Key Lab of Advanced Optical Manufacturing Technologies of Jiangsu Province & Key Lab of Modern Optical Technologies of Education Ministry of China Soochow University Suzhou 215123 China
| | - Junjie Yao
- College of Energy Key Lab of Advanced Optical Manufacturing Technologies of Jiangsu Province & Key Lab of Modern Optical Technologies of Education Ministry of China Soochow University Suzhou 215123 China
| | - Qinghua Yi
- College of Energy Key Lab of Advanced Optical Manufacturing Technologies of Jiangsu Province & Key Lab of Modern Optical Technologies of Education Ministry of China Soochow University Suzhou 215123 China
| | - Rujun Tang
- School of Physical Science and Technology Jiangsu Key Laboratory of Thin Films Soochow University Suzhou 215123 China
| | - Guifu Zou
- College of Energy Key Lab of Advanced Optical Manufacturing Technologies of Jiangsu Province & Key Lab of Modern Optical Technologies of Education Ministry of China Soochow University Suzhou 215123 China
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29
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Wang J, Ma L, Wang X, Wang X, Yao J, Yi Q, Tang R, Zou G. Sub-Nanometer Thick Wafer-Size NiO Films with Room-Temperature Ferromagnetic Behavior. Angew Chem Int Ed Engl 2021; 60:25020-25027. [PMID: 34534391 DOI: 10.1002/anie.202110185] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Indexed: 12/18/2022]
Abstract
Adding ferromagnetism into semiconductors attracts much attentions due to its potential usage of magnetic spins in novel devices, such as spin field-effect transistors. However, it remains challenging to stabilize their ferromagnetism above room temperature. Here we introduce an atomic chemical-solution strategy to grow wafer-size NiO thin films with controllable thickness down to sub-nanometer scale (0.92 nm) for the first time. Surface lattice defects break the magnetic symmetry of NiO and produce surface ferromagnetic behaviors. Our sub-nanometric NiO thin film exhibits the highest reported room-temperature ferromagnetic behavior with a saturation magnetization of 157 emu/cc and coercivity of 418 Oe. Attributed to wafer size, the easily-transferred NiO thin film is further verified in a magnetoresistance device. Our work provides a sub-nanometric platform to produce wafer-size ferromagnetic NiO thin films as atomic layer magnetic units in future transparent magnetoelectric devices.
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Affiliation(s)
- Jiong Wang
- College of Energy, Key Lab of Advanced Optical Manufacturing Technologies of Jiangsu Province & Key Lab of Modern Optical Technologies of Education Ministry of China, Soochow University, Suzhou, 215123, China
| | - Liang Ma
- College of Energy, Key Lab of Advanced Optical Manufacturing Technologies of Jiangsu Province & Key Lab of Modern Optical Technologies of Education Ministry of China, Soochow University, Suzhou, 215123, China
| | - Xiangyi Wang
- College of Energy, Key Lab of Advanced Optical Manufacturing Technologies of Jiangsu Province & Key Lab of Modern Optical Technologies of Education Ministry of China, Soochow University, Suzhou, 215123, China
| | - Xiaohan Wang
- College of Energy, Key Lab of Advanced Optical Manufacturing Technologies of Jiangsu Province & Key Lab of Modern Optical Technologies of Education Ministry of China, Soochow University, Suzhou, 215123, China
| | - Junjie Yao
- College of Energy, Key Lab of Advanced Optical Manufacturing Technologies of Jiangsu Province & Key Lab of Modern Optical Technologies of Education Ministry of China, Soochow University, Suzhou, 215123, China
| | - Qinghua Yi
- College of Energy, Key Lab of Advanced Optical Manufacturing Technologies of Jiangsu Province & Key Lab of Modern Optical Technologies of Education Ministry of China, Soochow University, Suzhou, 215123, China
| | - Rujun Tang
- School of Physical Science and Technology, Jiangsu Key Laboratory of Thin Films, Soochow University, Suzhou, 215123, China
| | - Guifu Zou
- College of Energy, Key Lab of Advanced Optical Manufacturing Technologies of Jiangsu Province & Key Lab of Modern Optical Technologies of Education Ministry of China, Soochow University, Suzhou, 215123, China
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30
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Wang X, Qi Z, Liu J, Wang H, Xu X, Zhang X, Wang H. Strong Interfacial Coupling of Tunable Ni-NiO Nanocomposite Thin Films Formed by Self-Decomposition. ACS APPLIED MATERIALS & INTERFACES 2021; 13:39730-39737. [PMID: 34378908 DOI: 10.1021/acsami.1c09793] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The next-generation spintronic devices including memristors, tunneling devices, or stochastic switching exert surging demands on magnetic nanostructures with novel coupling schemes. Taking advantage of a phase decomposition mechanism, a unique Ni-NiO nanocomposite has been demonstrated using a conventional pulsed laser deposition technique. Ni nanodomains are segregated from NiO and exhibit as faceted "emerald-cut" morphologies with tunable dimensions affected by the growth temperature. The sharp interfacial transition between ferromagnetic (002) Ni and antiferromagnetic (002) NiO, as characterized by high-resolution transmission electron microscopy, introduces a strong exchange bias effect and magneto-optical coupling at room temperature. In situ heating-cooling X-ray diffraction (XRD) study confirms an irreversible phase transformation between Ni and NiO under ambient atmosphere. Synthesizing highly functional two-phase nanocomposites with a simple bottom-up self-assembly via such a phase decomposition mechanism presents advantages in terms of epitaxial quality, surface coverage, interfacial coupling, and tunable nanomagnetism, which are valuable for new spintronic device implementation.
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Affiliation(s)
- Xuejing Wang
- School of Materials Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Zhimin Qi
- School of Materials Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Juncheng Liu
- School of Materials Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Haohan Wang
- Department of Physics and Astronomy, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, United States
| | - Xiaoshan Xu
- Department of Physics and Astronomy, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, United States
| | - Xinghang Zhang
- School of Materials Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Haiyan Wang
- School of Materials Engineering, Purdue University, West Lafayette, Indiana 47907, United States
- School of Electrical and Computer Engineering, Purdue University, West Lafayette, Indiana 47907, United States
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31
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Paudel B, Kang KT, Sharma Y, Nakotte H, Yarotski D, Chen A. Symmetry mismatch controlled ferroelastic domain ordering and the functional properties of manganite films on cubic miscut substrates. Phys Chem Chem Phys 2021; 23:16623-16628. [PMID: 34319307 DOI: 10.1039/d1cp01957k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We have studied the magnetotransport properties and strain release mechanisms in ferroelastic La0.9Sr0.1MnO3 (LSMO) epitaxial thin films on SrTiO3 (STO)(001) substrates with different miscut angles. The substrate miscut angle plays a critical role in releasing shear strain and has a huge impact on the properties of the films. The strain relaxes by monoclinic distortion for films on low miscut substrates and for higher miscut substrates, the strain relaxation causes the formation of periodic twin domains with larger periodicities. We observe that the Curie temperature (TC) decreases systematically, and magnetoresistance (MR) increases with increasing the miscut angle. Such changes in the magnetic and transport properties could be due to the increased density of phase boundaries (PBs) with the increase of miscut angle. This work provides a way to tailor film microstructures and subsequent functional properties of other complex oxide films on miscut substrates with symmetry mismatch.
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Affiliation(s)
- Binod Paudel
- Center for Integrated Nanotechnologies (CINT), Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
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32
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Tran T, Weng X, Hennes M, Demaille D, Coati A, Vlad A, Garreau Y, Sauvage-Simkin M, Sacchi M, Vidal F, Zheng Y. Spatial correlation of embedded nanowires probed by X-ray off-Bragg scattering of the host matrix. J Appl Crystallogr 2021. [DOI: 10.1107/s1600576721006579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
It is shown that information on the spatial correlation of nano-objects embedded in a crystalline matrix can be retrieved by analysing the X-ray scattering around the Bragg reflections of the host matrix. Data are reported for vertically aligned Ni and CoNi alloy nanowires (NWs) in an SrTiO3 matrix. When the Bragg condition is fulfilled for the matrix and not for the NWs, the latter can be approximated by voids, and the scattering around the matrix reflections contains information on the self-correlation of the NWs (i.e. on their diameter d) and on the correlation between NWs (interdistance D). Nondestructive synchrotron X-ray diffraction data provide information on these values averaged over large areas, complementing local transmission electron microscopy observations. The measurements show that off-Bragg scattering around the matrix reflections can be exploited to study the spatial correlation and morphology of embedded nano-objects, independently of their crystallinity or strain or the presence of defects.
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33
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A high-entropy manganite in an ordered nanocomposite for long-term application in solid oxide cells. Nat Commun 2021; 12:2660. [PMID: 33976209 PMCID: PMC8113253 DOI: 10.1038/s41467-021-22916-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Accepted: 03/29/2021] [Indexed: 02/03/2023] Open
Abstract
The implementation of nano-engineered composite oxides opens up the way towards the development of a novel class of functional materials with enhanced electrochemical properties. Here we report on the realization of vertically aligned nanocomposites of lanthanum strontium manganite and doped ceria with straight applicability as functional layers in high-temperature energy conversion devices. By a detailed analysis using complementary state-of-the-art techniques, which include atom-probe tomography combined with oxygen isotopic exchange, we assess the local structural and electrochemical functionalities and we allow direct observation of local fast oxygen diffusion pathways. The resulting ordered mesostructure, which is characterized by a coherent, dense array of vertical interfaces, shows high electrochemically activity and suppressed dopant segregation. The latter is ascribed to spontaneous cationic intermixing enabling lattice stabilization, according to density functional theory calculations. This work highlights the relevance of local disorder and long-range arrangements for functional oxides nano-engineering and introduces an advanced method for the local analysis of mass transport phenomena.
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34
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Wang L, Yang Z, Yin X, Taylor SD, He X, Tang CS, Bowden ME, Zhao J, Wang J, Liu J, Perea DE, Wangoh L, Wee ATS, Zhou H, Chambers SA, Du Y. Spontaneous phase segregation of Sr 2NiO 3 and SrNi 2O 3 during SrNiO 3 heteroepitaxy. SCIENCE ADVANCES 2021; 7:eabe2866. [PMID: 33674310 PMCID: PMC7935367 DOI: 10.1126/sciadv.abe2866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Accepted: 01/21/2021] [Indexed: 06/12/2023]
Abstract
Recent discovery of superconductivity in Nd0.8Sr0.2NiO2 motivates the synthesis of other nickelates for providing insights into the origin of high-temperature superconductivity. However, the synthesis of stoichiometric R 1-x Sr x NiO3 thin films over a range of x has proven challenging. Moreover, little is known about the structures and properties of the end member SrNiO3 Here, we show that spontaneous phase segregation occurs while depositing SrNiO3 thin films on perovskite oxide substrates by molecular beam epitaxy. Two coexisting oxygen-deficient Ruddlesden-Popper phases, Sr2NiO3 and SrNi2O3, are formed to balance the stoichiometry and stabilize the energetically preferred Ni2+ cation. Our study sheds light on an unusual oxide thin-film nucleation process driven by the instability in perovskite structured SrNiO3 and the tendency of transition metal cations to form their most stable valence (i.e., Ni2+ in this case). The resulting metastable reduced Ruddlesden-Popper structures offer a testbed for further studying emerging phenomena in nickel-based oxides.
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Affiliation(s)
- Le Wang
- Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, USA
| | - Zhenzhong Yang
- Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, USA
| | - Xinmao Yin
- Department of Physics, Faculty of Science, National University of Singapore, Singapore 117542, Singapore
| | - Sandra D Taylor
- Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, USA
| | - Xu He
- Catalan Institute of Nanoscience and Nanotechnology-ICN2, CSIC and BIST, Campus UAB, 08193 Bellaterra, Spain
| | - Chi Sin Tang
- NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore, Singapore 117456, Singapore
| | - Mark E Bowden
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA 99354, USA
| | - Jiali Zhao
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039, China
| | - Jiaou Wang
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039, China
| | - Jishan Liu
- Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, USA
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences (CAS) , Shanghai 200050, China
| | - Daniel E Perea
- Earth and Biological Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, USA
| | - Linda Wangoh
- Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, USA
| | - Andrew T S Wee
- Department of Physics, Faculty of Science, National University of Singapore, Singapore 117542, Singapore
| | - Hua Zhou
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Lemont, IL 60439, USA
| | - Scott A Chambers
- Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, USA.
| | - Yingge Du
- Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, USA.
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da Trindade LG, Borba KM, Trench AB, Zanchet L, Teodoro V, Pontes FM, Longo E, Mazzo TM. Effective strategy to coupling Zr-MOF/ZnO: Synthesis, morphology and photoelectrochemical properties evaluation. J SOLID STATE CHEM 2021. [DOI: 10.1016/j.jssc.2020.121794] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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36
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Chen F, Shen K, Yang Y, Huang H, Li Y. MOF-Assisted Synthesis of Highly Mesoporous Cr 2O 3/SiO 2 Nanohybrids for Efficient Lewis-Acid-Catalyzed Reactions. ACS APPLIED MATERIALS & INTERFACES 2020; 12:48691-48699. [PMID: 33073975 DOI: 10.1021/acsami.0c15344] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The facile fabrication of porous solid acids is highly desired for replacing hazardous liquid acids for many acid-catalyzed reactions in the industry. Herein, we present a bottom-up strategy to construct ultrastable mesoporous Cr2O3/SiO2 nanohybrids (denoted as Meso-Cr-Si-O) with highly dispersed Lewis acid sites by pyrolysis of a SiO2@MIL-101 precursor prepared via nanocasting by a reverse double-solvent approach, which can guarantee the efficient encapsulation of SiO2 nanoparticles (NPs) inside the MIL-101 pores. The pore environment of Meso-Cr-Si-O can be well tuned by simply controlling the amount of silica within the MIL-101 pores and the pyrolysis temperature. Pyridine adsorption experiments demonstrate that the density of Lewis acidic sites in the obtained Meso-Cr-Si-O is much higher than that of MIL-101-derived Cr2O3 NPs. Benefitting from its highly mesoporous nanostructure with abundant acid sites, the optimal Meso-Cr-Si-O exhibits a significantly improved catalytic activity for the Lewis-acid-catalyzed Meerwein-Ponndorf-Verley reduction of cyclohexanone with 4.5 times higher yield of cyclohexanol than that of the MIL-101-derived Cr2O3 NPs, representing the first efficient Cr2O3-based catalytic system for this reaction.
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Affiliation(s)
- Fengfeng Chen
- State Key Laboratory of Pulp and Paper Engineering, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Kui Shen
- State Key Laboratory of Pulp and Paper Engineering, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Yitao Yang
- State Key Laboratory of Pulp and Paper Engineering, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Haigen Huang
- State Key Laboratory of Pulp and Paper Engineering, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Yingwei Li
- State Key Laboratory of Pulp and Paper Engineering, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
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37
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Wang X, Wang H. Self-assembled nitride-metal nanocomposites: recent progress and future prospects. NANOSCALE 2020; 12:20564-20579. [PMID: 33090168 DOI: 10.1039/d0nr06316a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Two-phase nanocomposites have gained significant research interest because of their multifunctionalities, tunable geometries and potential device applications. Different from the previously demonstrated oxide-oxide 2-phase nanocomposites, coupling nitrides with metals shows high potential for building alternative hybrid plasmonic metamaterials towards chemical sensing, tunable plasmonics, and nonlinear optics. Unique advantages, including distinct atomic interface, excellent crystalline quality, large-scale surface coverage and durable solid-state platform, address the high demand for new hybrid metamaterial designs for versatile optical material needs. This review summarizes the recent progress on nitride-metal nanocomposites, specifically targeting bottom-up self-assembled nanocomposite thin films. Various morphologies including vertically aligned nanocomposites (VANs), self-organized nanoinclusions, and nanoholes fabricated by additional chemical treatments are introduced. Starting from thin film nucleation and growth, the prerequisites of successful strain coupling and the underlying growth mechanisms are discussed. These findings facilitate a better control of tunable nanostructures and optical functionalities. Future research directions are proposed, including morphological control of the secondary phase to enhance its homogeneity, coupling nitrides with magnetic phase for the magneto-optical effect and growing all-ceramic nanocomposites to extend functionalities and anisotropy.
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Affiliation(s)
- Xuejing Wang
- School of Materials Engineering, Purdue University, West Lafayette, IN 47907, USA. and School of Electrical and Computer Engineering, Purdue University, West Lafayette, IN 47907, USA
| | - Haiyan Wang
- School of Materials Engineering, Purdue University, West Lafayette, IN 47907, USA. and School of Electrical and Computer Engineering, Purdue University, West Lafayette, IN 47907, USA
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38
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Sharma Y, Skoropata E, Paudel B, Kang KT, Yarotski D, Ward TZ, Chen A. Epitaxial Stabilization of Single-Crystal Multiferroic YCrO 3 Thin Films. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:nano10102085. [PMID: 33096876 PMCID: PMC7588968 DOI: 10.3390/nano10102085] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Revised: 10/15/2020] [Accepted: 10/17/2020] [Indexed: 06/11/2023]
Abstract
We report on the growth of stoichiometric, single-crystal YCrO3 epitaxial thin films on (001) SrTiO3 substrates using pulsed laser deposition. X-ray diffraction and atomic force microscopy reveal that the films grew in a layer-by-layer fashion with excellent crystallinity and atomically smooth surfaces. Magnetization measurements demonstrate that the material is ferromagnetic below 144 K. The temperature dependence of dielectric permittivity shows a characteristic relaxor-ferroelectric behavior at TC = 375-408 K. A dielectric anomaly at the magnetic transition temperature indicates a close correlation between magnetic and electric order parameters in these multiferroic YCrO3 films. These findings provide guidance to synthesize rare-earth, chromite-based multifunctional heterostructures and build a foundation for future studies on the understanding of magnetoelectric effects in similar material systems.
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Affiliation(s)
- Yogesh Sharma
- Center for Integrated Nanotechnologies (CINT), Los Alamos National Laboratory, Los Alamos, NM 87545, USA; (B.P.); (K.T.K.); (D.Y.); (A.C.)
| | - Elizabeth Skoropata
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA; (E.S.); (T.Z.W.)
| | - Binod Paudel
- Center for Integrated Nanotechnologies (CINT), Los Alamos National Laboratory, Los Alamos, NM 87545, USA; (B.P.); (K.T.K.); (D.Y.); (A.C.)
| | - Kyeong Tae Kang
- Center for Integrated Nanotechnologies (CINT), Los Alamos National Laboratory, Los Alamos, NM 87545, USA; (B.P.); (K.T.K.); (D.Y.); (A.C.)
| | - Dmitry Yarotski
- Center for Integrated Nanotechnologies (CINT), Los Alamos National Laboratory, Los Alamos, NM 87545, USA; (B.P.); (K.T.K.); (D.Y.); (A.C.)
| | - T. Zac Ward
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA; (E.S.); (T.Z.W.)
| | - Aiping Chen
- Center for Integrated Nanotechnologies (CINT), Los Alamos National Laboratory, Los Alamos, NM 87545, USA; (B.P.); (K.T.K.); (D.Y.); (A.C.)
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39
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Wang X, Choi J, Liu J, Malis O, Li X, Bermel P, Zhang X, Wang H. 3D Hybrid Trilayer Heterostructure: Tunable Au Nanorods and Optical Properties. ACS APPLIED MATERIALS & INTERFACES 2020; 12:45015-45022. [PMID: 32960570 DOI: 10.1021/acsami.0c14937] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Engineering plasmonic nanostructures from three dimensions (3D) is very attractive toward controllable and tunable nanophotonic components and devices. Herein, Au-based trilayer heterostructures composed of a dielectric spacer sandwiched by hybrid Au-TiN vertically aligned nanocomposite (VAN) nanoplasmonic claddings are demonstrated with a broad range of geometries and property tuning. Two types of spacer layers, that is, a pure dielectric BaTiO3 layer and a hybrid plasmonic Au-BaTiO3 VAN layer, contribute to the tuning of the Au nanorod dimension. Such geometrical variations of Au nanostructures originate from the surface energy and lattice strain tuned by the spacer layers. Optical measurements and numerical simulations suggest the change of the localized surface plasmon resonance which is strongly affected by the tailored Au nanorods as either separated or channeled. The uniaxial dielectric tensors suggest a tunable hyperbolic property affected by such a metal-insulator-metal trilayer stack. The complex 3D heterostructures offer additional tuning parameters and design flexibilities in hybrid plasmonic metamaterials toward potential applications in light harvesting, sensing, and nanophotonic devices.
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Affiliation(s)
- Xuejing Wang
- School of Materials Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Junho Choi
- Department of Physics, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Juncheng Liu
- School of Materials Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Oana Malis
- Department of Physics and Astronomy, Purdue University, West Lafayette, Indiana 47907, United States
| | - Xiaoqin Li
- Department of Physics, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Peter Bermel
- School of Electrical and Computer Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Xinghang Zhang
- School of Materials Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Haiyan Wang
- School of Materials Engineering, Purdue University, West Lafayette, Indiana 47907, United States
- School of Electrical and Computer Engineering, Purdue University, West Lafayette, Indiana 47907, United States
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40
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Hope M, Zhang B, Zhu B, Halat DM, MacManus-Driscoll JL, Grey CP. Revealing the Structure and Oxygen Transport at Interfaces in Complex Oxide Heterostructures via 17O NMR Spectroscopy. CHEMISTRY OF MATERIALS : A PUBLICATION OF THE AMERICAN CHEMICAL SOCIETY 2020; 32:7921-7931. [PMID: 32982045 PMCID: PMC7513580 DOI: 10.1021/acs.chemmater.0c02698] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 08/18/2020] [Indexed: 05/24/2023]
Abstract
Vertically aligned nanocomposite (VAN) films, comprising nanopillars of one phase embedded in a matrix of another, have shown great promise for a range of applications due to their high interfacial areas oriented perpendicular to the substrate. In particular, oxide VANs show enhanced oxide-ion conductivity in directions that are orthogonal to those found in more conventional thin-film heterostructures; however, the structure of the interfaces and its influence on conductivity remain unclear. In this work, 17O NMR spectroscopy is used to study CeO2-SrTiO3 VAN thin films: selective isotopic enrichment is combined with a lift-off technique to remove the substrate, facilitating detection of the 17O NMR signal from single atomic layer interfaces. By performing the isotopic enrichment at variable temperatures, the superior oxide-ion conductivity of the VAN films compared to the bulk materials is shown to arise from enhanced oxygen mobility at this interface; oxygen motion at the interface is further identified from 17O relaxometry experiments. The structure of this interface is solved by calculating the NMR parameters using density functional theory combined with random structure searching, allowing the chemistry underpinning the enhanced oxide-ion transport to be proposed. Finally, a comparison is made with 1% Gd-doped CeO2-SrTiO3 VAN films, for which greater NMR signal can be obtained due to paramagnetic relaxation enhancement, while the relative oxide-ion conductivities of the phases remain similar. These results highlight the information that can be obtained on interfacial structure and dynamics with solid-state NMR spectroscopy, in this and other nanostructured systems, our methodology being generally applicable to overcome sensitivity limitations in thin-film studies.
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Affiliation(s)
- Michael
A. Hope
- Department
of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, United
Kingdom
| | - Bowen Zhang
- Department
of Materials Science and Metallurgy, University
of Cambridge, 27 Charles Babbage Road, Cambridge CB3 0FS, United Kingdom
| | - Bonan Zhu
- Department
of Materials Science and Metallurgy, University
of Cambridge, 27 Charles Babbage Road, Cambridge CB3 0FS, United Kingdom
| | - David M. Halat
- Department
of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, United
Kingdom
| | - Judith L. MacManus-Driscoll
- Department
of Materials Science and Metallurgy, University
of Cambridge, 27 Charles Babbage Road, Cambridge CB3 0FS, United Kingdom
| | - Clare P. Grey
- Department
of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, United
Kingdom
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Rutherford B, Zhang B, Wang X, Sun X, Qi Z, Wang H, Wang H. Strain Effects on the Growth of La 0.7Sr 0.3MnO 3 (LSMO)-NiO Nanocomposite Thin Films via Substrate Control. ACS OMEGA 2020; 5:23793-23798. [PMID: 32984699 PMCID: PMC7513345 DOI: 10.1021/acsomega.0c02923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 08/24/2020] [Indexed: 06/11/2023]
Abstract
Oxide-oxide-based vertically aligned nanocomposites (VANs) have demonstrated a new material platform for enhanced and/or combined functionalities because of their unique vertical geometry and strain coupling. Various factors contribute to the growth of VANs, including deposition parameters, phase composition, phase ratios, crystallography, etc. In this work, substrate strain effects are explored through growing a two-phase oxide-oxide La0.7Sr0.3MnO3 (LSMO):NiO system, combining antiferromagnetic NiO and ferromagnetic LSMO, on various substrates with different lattice parameters. The X-ray diffraction (XRD), transmission electron microscopy (TEM), and magnetic property measurements all suggest that substrate strain plays a critical role in the epitaxial growth of a VAN structure and their two-phase separation, and thus results in different physical properties. This work sheds light on the fundamental nucleation and growth mechanisms of the two-phase VAN systems and the effects of substrate strain on the overall orientation and growth quality of the VAN films.
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Affiliation(s)
- Bethany
X. Rutherford
- School
of Materials Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Bruce Zhang
- School
of Electrical and Computer Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Xuejing Wang
- School
of Materials Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Xing Sun
- School
of Materials Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Zhimin Qi
- School
of Materials Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Han Wang
- School
of Materials Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Haiyan Wang
- School
of Materials Engineering, Purdue University, West Lafayette, Indiana 47907, United States
- School
of Electrical and Computer Engineering, Purdue University, West Lafayette, Indiana 47907, United States
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42
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Enriquez E, Li Q, Bowlan P, Lu P, Zhang B, Li L, Wang H, Taylor AJ, Yarotski D, Prasankumar RP, Kalinin SV, Jia Q, Chen A. Induced ferroelectric phases in SrTiO 3 by a nanocomposite approach. NANOSCALE 2020; 12:18193-18199. [PMID: 32856672 DOI: 10.1039/d0nr03460f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Inducing new phases in thick films via vertical lattice strain is one of the critical advantages of vertically aligned nanocomposites (VANs). In SrTiO3 (STO), the ground state is ferroelastic, and the ferroelectricity in STO is suppressed by the orthorhombic transition. Here, we explore whether vertical lattice strain in three-dimensional VANs can be used to induce new ferroelectric phases in SrTiO3:MgO (STO:MgO) VAN thin films. The STO:MgO system incorporates ordered, vertically aligned MgO nanopillars into a STO film matrix. Strong lattice coupling between STO and MgO imposes a large lattice strain in the STO film. We have investigated ferroelectricity in the STO phase, existing up to room temperature, using piezoresponse force microscopy, phase field simulation and second harmonic generation. We also serendipitously discovered the formation of metastable TiO nanocores in MgO nanopillars embedded in the STO film matrix. Our results emphasize the design of new phases via vertical epitaxial strain in VAN thin films.
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Affiliation(s)
- Erik Enriquez
- Center for Integrated Nanotechnologies (CINT), Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
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43
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Wang X, Wang H, Jian J, Rutherford BX, Gao X, Xu X, Zhang X, Wang H. Metal-Free Oxide-Nitride Heterostructure as a Tunable Hyperbolic Metamaterial Platform. NANO LETTERS 2020; 20:6614-6622. [PMID: 32787175 DOI: 10.1021/acs.nanolett.0c02440] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Metal-free plasmonic metamaterials with wide-range tunable optical properties are highly desired for various components in future integrated optical devices. Designing a ceramic-ceramic hybrid metamaterial has been theoretically proposed as a solution to this critical optical material demand. However, the processing of such all-ceramic metamaterials is challenging due to difficulties in integrating two very dissimilar ceramic phases as one hybrid system. In this work, an oxide-nitride hybrid metamaterial combining two highly dissimilar ceramic phases, i.e., semiconducting weak ferromagnetic NiO nanorods and conductive plasmonic TiN matrix, has been successfully integrated as a unique vertically aligned nanocomposite form. Highly anisotropic optical properties such as hyperbolic dispersions and strong magneto-optical coupling have been demonstrated under room temperature. The novel functionalities presented show the strong potentials of this new ceramic-ceramic hybrid thin film platform and its future applications in next-generation nanophotonics and magneto-optical integrated devices without the lossy metallic components.
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Affiliation(s)
- Xuejing Wang
- School of Materials Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Haohan Wang
- Department of Physics and Astronomy, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, United States
| | - Jie Jian
- School of Materials Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Bethany X Rutherford
- School of Materials Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Xingyao Gao
- School of Materials Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Xiaoshan Xu
- Department of Physics and Astronomy, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, United States
| | - Xinghang Zhang
- School of Materials Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Haiyan Wang
- School of Materials Engineering, Purdue University, West Lafayette, Indiana 47907, United States
- School of Electrical and Computer Engineering, Purdue University, West Lafayette, Indiana 47907, United States
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44
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Niu M, Zhu H, Wang Y, Yan J, Chen N, Yan P, Ouyang J. Integration-Friendly, Chemically Stoichiometric BiFeO 3 Films with a Piezoelectric Performance Challenging that of PZT. ACS APPLIED MATERIALS & INTERFACES 2020; 12:33899-33907. [PMID: 32609491 DOI: 10.1021/acsami.0c07155] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
As a prototype single-phase multiferroic, BiFeO3 exhibits excellent electrical, magnetic, and magnetoelectric properties, appealing to many modern technological applications. One of its overlooked merits is a high piezoelectric performance originating from its large remnant polarization (Pr) and low dielectric constant (εr). Furthermore, its high Curie temperature and large coercive field ensure good stabilities in device applications. However, to achieve close-to-intrinsic properties, a high processing temperature is usually used for the preparation of highly crystalline (epitaxial or highly oriented) BiFeO3 films. Proliferation of defects due to loss of volatile Bi2O3 in the high-temperature process and its incompatibility with CMOS-Si technologies have hindered the development of BiFeO3 film-based piezoelectric micro-electro-mechanical systems (piezo-MEMS) devices. In this work, we successfully sputter-deposited highly (100) oriented BiFeO3 thick films (∼1 μm) on Si at 350 °C through the use of a conductive perovskite buffer layer of LaNiO3. Formation of bulk and interfacial defects is suppressed by the combination of a low deposition temperature and an oxygen-rich processing atmosphere, resulting in chemically stoichiometric BiFeO3 films. These films displayed a high Pr (∼60 μC·cm-2), a low εr (∼200), and a small dielectric loss (<0.02), as well as large coercive and self-bias voltages in their as-grown and aged states. Together with a large transverse piezoelectric coefficient (e31,f ∼ -2.8 C·m-2), excellent electromechanical performances with outstanding fatigue and aging resistances are demonstrated in patterned BiFeO3-Si cantilever devices. These integration-friendly BiFeO3 films are ideal replacements of PZT films in piezo-MEMS applications.
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Affiliation(s)
- Miaomiao Niu
- Institute of Advanced Energy Materials and Chemistry, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
- Key Laboratory for Liquid-Solid Structure Evolution and Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University, Jinan 250061, China
| | - Hanfei Zhu
- Institute of Advanced Energy Materials and Chemistry, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Yingying Wang
- Key Laboratory for Liquid-Solid Structure Evolution and Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University, Jinan 250061, China
| | - Jing Yan
- Key Laboratory for Liquid-Solid Structure Evolution and Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University, Jinan 250061, China
| | - Ning Chen
- Key Laboratory of High-efficiency and Clean Mechanical Manufacturing (Ministry of Education), School of Mechanical Engineering, Shandong University, Jinan 250061, China
| | - Peng Yan
- Key Laboratory of High-efficiency and Clean Mechanical Manufacturing (Ministry of Education), School of Mechanical Engineering, Shandong University, Jinan 250061, China
- Suzhou Institute of Shandong University, Suzhou 215123, China
| | - Jun Ouyang
- Institute of Advanced Energy Materials and Chemistry, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
- Key Laboratory for Liquid-Solid Structure Evolution and Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University, Jinan 250061, China
- Suzhou Institute of Shandong University, Suzhou 215123, China
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45
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Abstract
In this tribute to K Alex Müller, I describe how his early insights have influenced future decades of research on perovskite ferroelectrics and more broadly transition metal oxides (TMOs) and related quantum materials. I use his influence on my own research journey to discuss impacts in three areas: structural phase transitions, precursor structure, and quantum paraelectricity. I emphasize materials functionality in ground, metastable, and excited states arising from competitions among lattice, charge, and spin degrees of freedom, which results in highly tunable landscapes and complex networks of multiscale configurations controlling macroscopic functions. I discuss competitions between short- and long-range forces as particularly important in TMOs (and related materials classes) because of their localized and directional metal orbitals and the polarizable oxygen ions. I emphasize crucial consequences of elasticity and metal–oxygen charge transfer.
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46
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Li J, Shu C, Liu C, Chen X, Hu A, Long J. Rationalizing the Effect of Oxygen Vacancy on Oxygen Electrocatalysis in Li-O 2 Battery. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2001812. [PMID: 32431080 DOI: 10.1002/smll.202001812] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 04/19/2020] [Accepted: 04/20/2020] [Indexed: 06/11/2023]
Abstract
Albeit the effectiveness of surface oxygen vacancy in improving oxygen redox reactions in Li-O2 battery, the underpinning reason behind this improvement remains ambiguous. Herein, the concentration of oxygen vacancy in spinel NiCo2 O4 is first regulated via magnetron sputtering and its relationship with catalytic activity is comprehensively studied in Li-O2 battery based on experiment and density functional theory (DFT) calculation. The positive effect posed by oxygen vacancy originates from the up shifted antibond orbital relative to Fermi level (Ef ), which provides extra electronic state around Ef , eventually enhancing oxygen adsorption and charge transfer during oxygen redox reactions. However, with excessive oxygen vacancy, the negative effect emerges because the metal ions are mostly reduced to low valence based on the electrical neutral principle, which not only destabilizes the crystal structure but also weakens the ability to capture electrons from the antibond orbit of Li2 O2 , leading to poor catalytic activity for oxygen evolution reaction (OER).
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Affiliation(s)
- Jiabao Li
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu, Sichuan, 610059, P. R. China
| | - Chaozhu Shu
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu, Sichuan, 610059, P. R. China
| | - Chunhai Liu
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu, Sichuan, 610059, P. R. China
| | - Xianfei Chen
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu, Sichuan, 610059, P. R. China
| | - Anjun Hu
- State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, Sichuan, 610054, P. R. China
| | - Jianping Long
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu, Sichuan, 610059, P. R. China
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47
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Abstract
We live in a research era marked by impressive new tools powering the scientific method to accelerate the discovery, prediction, and control of increasingly complex systems. In common with many disciplines and societal challenges and opportunities, materials and condensed matter sciences are beneficiaries. The volume and fidelity of experimental, computational, and visualization data available, and tools to rapidly interpret them, are remarkable. Conceptual frameworks, including multiscale, multiphysics modeling of this complexity, are fueled by the data and, in turn, guide directions for future experimental and computational strategies. In this spirit, I discuss the importance of competing interactions, length scales, and constraints as pervasive sources of spatiotemporal complexity. I use representative examples drawn from materials and condensed matter, including the important role of elasticity in some technologically important quantum materials. Expected final online publication date for the Annual Review of Materials Research, Volume 50 is July 1, 2020. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.
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Affiliation(s)
- A R Bishop
- Center for Nonlinear Studies, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA;
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48
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Sayed F, Kotnana G, Muscas G, Locardi F, Comite A, Varvaro G, Peddis D, Barucca G, Mathieu R, Sarkar T. Symbiotic, low-temperature, and scalable synthesis of bi-magnetic complex oxide nanocomposites. NANOSCALE ADVANCES 2020; 2:851-859. [PMID: 36133229 PMCID: PMC9417494 DOI: 10.1039/c9na00619b] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Accepted: 01/15/2020] [Indexed: 06/12/2023]
Abstract
Functional oxide nanocomposites, where the individual components belong to the family of strongly correlated electron oxides, are an important class of materials, with potential applications in several areas such as spintronics and energy devices. For these materials to be technologically relevant, it is essential to design low-cost and scalable synthesis techniques. In this work, we report a low-temperature and scalable synthesis of prototypical bi-magnetic LaFeO3-CoFe2O4 nanocomposites using a unique sol-based synthesis route, where both the phases of the nanocomposite are formed during the same time. In this bottom-up approach, the heat of formation of one phase (CoFe2O4) allows the crystallization of the second phase (LaFeO3), and completely eliminates the need for conventional high-temperature annealing. A symbiotic effect is observed, as the second phase reduces grain growth of the first phase, thus yielding samples with lower particle sizes. Through thermogravimetric, structural, and morphological studies, we have confirmed the reaction mechanism. The magnetic properties of the bi-magnetic nanocomposites are studied, and reveal a distinct effect of the synthesis conditions on the coercivity of the particles. Our work presents a basic concept of significantly reducing the synthesis temperature of bi-phasic nanocomposites (and thus also the synthesis cost) by using one phase as nucleation sites for the second one, as well as using the heat of formation of one phase to crystallize the other.
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Affiliation(s)
- F Sayed
- Department of Materials Science and Engineering, Uppsala University Box 534 SE-75121 Uppsala Sweden
| | - G Kotnana
- Department of Materials Science and Engineering, Uppsala University Box 534 SE-75121 Uppsala Sweden
| | - G Muscas
- Department of Physics and Astronomy, Uppsala University Box 516 SE-75120 Uppsala Sweden
| | - F Locardi
- Dipartimento di Chimica e Chimica Industriale, Università degli Studi di Genova Via Dodecaneso 31 Genova 16146 Italy
- Physics and Chemistry of Nanostructures (PCN), Ghent University Krijgslaan 281-S3 B9000 Gent Belgium
| | - A Comite
- Dipartimento di Chimica e Chimica Industriale, Università degli Studi di Genova Via Dodecaneso 31 Genova 16146 Italy
| | - G Varvaro
- Istituto di Struttura della Materia - CNR Area della Ricerca di Roma1, Monterotondo Scalo RM 00015 Italy
| | - D Peddis
- Dipartimento di Chimica e Chimica Industriale, Università degli Studi di Genova Via Dodecaneso 31 Genova 16146 Italy
- Istituto di Struttura della Materia - CNR Area della Ricerca di Roma1, Monterotondo Scalo RM 00015 Italy
| | - G Barucca
- Department SIMAU, University Politecnica delle Marche Via Brecce Bianche Ancona 60131 Italy
| | - R Mathieu
- Department of Materials Science and Engineering, Uppsala University Box 534 SE-75121 Uppsala Sweden
| | - T Sarkar
- Department of Materials Science and Engineering, Uppsala University Box 534 SE-75121 Uppsala Sweden
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49
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Ihli J, Levenstein MA, Kim YY, Wakonig K, Ning Y, Tatani A, Kulak AN, Green DC, Holler M, Armes SP, Meldrum FC. Ptychographic X-ray tomography reveals additive zoning in nanocomposite single crystals. Chem Sci 2020; 11:355-363. [PMID: 32874489 PMCID: PMC7442293 DOI: 10.1039/c9sc04670d] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 11/14/2019] [Indexed: 11/30/2022] Open
Abstract
Single crystals containing nanoparticles represent a unique class of nanocomposites whose properties are defined by both their compositions and the structural organization of the dispersed phase in the crystalline host. Yet, there is still a poor understanding of the relationship between the synthesis conditions and the structures of these materials. Here ptychographic X-ray computed tomography is used to visualize the three-dimensional structures of two nanocomposite crystals - single crystals of calcite occluding diblock copolymer worms and vesicles. This provides unique information about the distribution of the copolymer nano-objects within entire, micron-sized crystals with nanometer spatial resolution and reveals how occlusion is governed by factors including the supersaturation and calcium concentration. Both nanocomposite crystals are seen to exhibit zoning effects that are governed by the solution composition and interactions of the additives with specific steps on the crystal surface. Additionally, the size and shape of the occluded vesicles varies according to their location within the crystal, and therefore the solution composition at the time of occlusion. This work contributes to our understanding of the factors that govern nanoparticle occlusion within crystalline materials, where this will ultimately inform the design of next generation nanocomposite materials with specific structure/property relationships.
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Affiliation(s)
- Johannes Ihli
- Paul Scherrer Institut , 5232 Villigen , Switzerland .
| | - Mark A Levenstein
- School of Mechanical Engineering , University of Leeds , Leeds , LS2 9JT , UK
- School of Chemistry , University of Leeds , Leeds , LS2 9JT , UK .
| | - Yi-Yeoun Kim
- School of Chemistry , University of Leeds , Leeds , LS2 9JT , UK .
| | - Klaus Wakonig
- Paul Scherrer Institut , 5232 Villigen , Switzerland .
- Institute for Biomedical Engineering , ETHZürich , University of Zürich , 8093 Zürich , Switzerland
| | - Yin Ning
- Department of Chemistry , University of Sheffield , Sheffield , S3 7HF , UK
| | - Aikaterini Tatani
- Department of Chemistry , University of Sheffield , Sheffield , S3 7HF , UK
| | | | - David C Green
- School of Chemistry , University of Leeds , Leeds , LS2 9JT , UK .
| | - Mirko Holler
- Paul Scherrer Institut , 5232 Villigen , Switzerland .
| | - Steven P Armes
- Department of Chemistry , University of Sheffield , Sheffield , S3 7HF , UK
| | - Fiona C Meldrum
- School of Chemistry , University of Leeds , Leeds , LS2 9JT , UK .
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50
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Weng X, Hennes M, Tran T, Casaretto N, Demaille D, Vidal F, Zheng Y. Orientation and lattice matching of CoNi nanowires embedded in SrTiO 3: unveiling novel strain relaxation mechanisms in vertically aligned nanocomposites. CrystEngComm 2020. [DOI: 10.1039/d0ce00574f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Unveiling complex structural rearrangements and novel strain relaxation mechanisms in vertically aligned nanocomposites.
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Affiliation(s)
- Xiaorong Weng
- Sorbonne Université
- CNRS-UMR 7588
- Institut des NanoSciences de Paris (INSP)
- F-75005 Paris
- France
| | - Marcel Hennes
- Sorbonne Université
- CNRS-UMR 7588
- Institut des NanoSciences de Paris (INSP)
- F-75005 Paris
- France
| | - Thomas Tran
- Sorbonne Université
- CNRS-UMR 7588
- Institut des NanoSciences de Paris (INSP)
- F-75005 Paris
- France
| | - Nicolas Casaretto
- Sorbonne Université
- CNRS-UMR 7588
- Institut des NanoSciences de Paris (INSP)
- F-75005 Paris
- France
| | - Dominique Demaille
- Sorbonne Université
- CNRS-UMR 7588
- Institut des NanoSciences de Paris (INSP)
- F-75005 Paris
- France
| | - Franck Vidal
- Sorbonne Université
- CNRS-UMR 7588
- Institut des NanoSciences de Paris (INSP)
- F-75005 Paris
- France
| | - Yunlin Zheng
- Sorbonne Université
- CNRS-UMR 7588
- Institut des NanoSciences de Paris (INSP)
- F-75005 Paris
- France
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