1
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Fortified relaxor ferroelectricity of rare earth substituted 4-layered BaBi 3.9RE 0.1Ti 4O 15 (RE = La, Pr, Nd, and Sm) Aurivillius compounds. Sci Rep 2022; 12:16508. [PMID: 36192489 PMCID: PMC9529884 DOI: 10.1038/s41598-022-18855-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 08/22/2022] [Indexed: 11/29/2022] Open
Abstract
In this report, the effect of rare-earth (RE3+) ion substitution on structural, microstructural, and electrical properties in barium bismuth titanate (BaBi4Ti4O15) (BBTO) Aurivillius ceramics has been investigated. The Rietveld refinements on X-ray diffraction (XRD) patterns confirm that all the samples have an orthorhombic crystal system with A21am space group. Meanwhile, temperature dependent synchrotron XRD patterns reveal that the existence of dual phase in higher temperature region. The randomly oriented plate-like grains are experimentally strived to confirm the distinctive feature of bismuth layered Aurivillius ceramics. The broad band dielectric spectroscopic investigation signifies a shifting of ferroelectric phase transition (Tm) towards low temperature region with a decrease of the RE3+-ionic radii in BBTO ceramics. The origin of diffuse ferroelectric phase transitions followed by stabilization of the relaxor ferroelectric nature at high frequency region is explained using suitable standard models. The temperature dependent ac and dc conductivity results indicate the presence of double ionized oxygen vacancies in BBTO ceramics, whereas the dominance of single ionized oxygen vacancies is observed in RE-substituted BBTO ceramics. The room temperature polarization vs. electric field (P–E) hysteresis loops are shown to be well-shaped symmetric for BBTO ceramics, whereas slim asymmetric ferroelectric characteristics developed at RE-substituted BBTO ceramics.
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2
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Wendari TP, Arief S, Mufti N, Blake GR, Baas J, Suendo V, Prasetyo A, Insani A, Zulhadjri Z. Lead-Free Aurivillius Phase Bi 2LaNb 1.5Mn 0.5O 9: Structure, Ferroelectric, Magnetic, and Magnetodielectric Effects. Inorg Chem 2022; 61:8644-8652. [PMID: 35622976 DOI: 10.1021/acs.inorgchem.1c03624] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Aurivillius phase Bi2LaNb1.5Mn0.5O9, derived from ferroelectric PbBi2Nb2O9 by simultaneous substitution of the A-site and B-site cations, was synthesized using a molten-salt method. Here, we discuss the structure-property relationships in detail. X-ray and neutron diffraction show that Bi2LaNb1.5Mn0.5O9 adopts an A21am orthorhombic crystal structure. Rietveld refinement analysis, supported by Raman spectroscopy, indicates that the Bi3+ ions occupy the bismuth oxide blocks, La3+ ions occupy the perovskite A-site, and Nb5+/Mn3+ ions occupy the perovskite B-site. Ferroelectric ordering takes place at 535 K, which coexists with local ferromagnetic order below 65 K. The cation disorder on the B-site results in relaxor-ferroelectric behavior, and the short-range ferromagnetic order can be attributed to Mn3+/Mn4+ double-exchange. Magnetodielectric coupling measured at 5 K and 100 kHz in a field of 5 T suggests the existence of intrinsic spin-lattice coupling with a magnetodielectric coefficient of 0.20%. These findings will provide significant impetus for further research into potential devices based on the magnetodielectric effect in Aurivillius materials.
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Affiliation(s)
- Tio Putra Wendari
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Andalas, Kampus Limau Manis, Padang 25163, Indonesia
| | - Syukri Arief
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Andalas, Kampus Limau Manis, Padang 25163, Indonesia
| | - Nandang Mufti
- Center of Advanced Materials for Renewable Energy, Universitas Negeri Malang, Jl. Semarang 5, Malang 65145, Indonesia
| | - Graeme R Blake
- Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Jacob Baas
- Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Veinardi Suendo
- Division of Inorganic and Physical Chemistry, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jl. Ganesha 10, Bandung 40132, Indonesia
| | - Anton Prasetyo
- Department of Chemistry, Faculty of Science and Technology, Universitas Islam Negeri Maulana Malik Ibrahim Malang, Jl. Gajayana 50, Malang 65144, Indonesia
| | - Andon Insani
- Center for Science and Technology of Advanced Materials, National Nuclear Energy Agency of Indonesia, Puspiptek Serpong, Tangerang Selatan 15314, Indonesia
| | - Zulhadjri Zulhadjri
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Andalas, Kampus Limau Manis, Padang 25163, Indonesia
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3
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Wu X, Shi W, Guan S, Wang S, Cheng Y, Xie L, Chen H, Tan Z, Xu Y, Chen Q. Realization of high electric performance in Aurivillius ferroelectrics via combining chemical substitution and the construction of new-type solid solution systems. Ann Ital Chir 2022. [DOI: 10.1016/j.jeurceramsoc.2021.09.053] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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4
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Chen C, Ma Q, Liu F, Gao J, Li X, Sun S, Yao H, Liu C, Young J, Zhang W. Photocatalytically reductive defluorination of perfluorooctanoic acid (PFOA) using Pt/La 2Ti 2O 7 nanoplates: Experimental and DFT assessment. JOURNAL OF HAZARDOUS MATERIALS 2021; 419:126452. [PMID: 34198220 DOI: 10.1016/j.jhazmat.2021.126452] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 06/18/2021] [Accepted: 06/19/2021] [Indexed: 06/13/2023]
Abstract
To enable efficient degradation of perfluorooctanoic acid (PFOA), we prepared and investigated a nanosheet photocatalyst (Pt/La2Ti2O7). Doping platinum nanoparticles on La2Ti2O7 varied the band structure and improved the photocatalytic activity due to the enhanced charge separation. Methanol as the electron donor and sacrificial reagent significantly promoted the photocatalytically reductive degradation of PFOA that reduced by 40% within 180 min under UV254 irradiation (1 mW∙cm2). The density functional theory calculations were used to analyze the effects of Pt doping and band structures on interfacial electron transfer and degradation pathways. As opposed to photocatalytic oxidation, this UV/Pt/La2Ti2O7/CH3OH photocatalysis could abstract electrons from methanol and convert to free reactive radicals and photo-generated electrons to reductively defluorinate PFOA and potentially other polyhalogenated or perhalogenated organic compounds.
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Affiliation(s)
- Chen Chen
- Department of Municipal and Environmental Engineering, Qingdao University of Technology, Qingdao 266033, PR China; John A. Reif, Jr. Department of Civil and Environmental Engineering, New Jersey Institute of Technology, Newark, NJ 07102, USA
| | - Qingquan Ma
- John A. Reif, Jr. Department of Civil and Environmental Engineering, New Jersey Institute of Technology, Newark, NJ 07102, USA
| | - Fangzhou Liu
- John A. Reif, Jr. Department of Civil and Environmental Engineering, New Jersey Institute of Technology, Newark, NJ 07102, USA
| | - Jianan Gao
- Department of Municipal and Environmental Engineering, Qingdao University of Technology, Qingdao 266033, PR China; John A. Reif, Jr. Department of Civil and Environmental Engineering, New Jersey Institute of Technology, Newark, NJ 07102, USA
| | - Xinyang Li
- Beijing International Scientific and Technological Cooperation Base of Water Pollution Control Techniques for Antibiotics and Resistance Genes, Beijing Key Laboratory of Aqueous Typical Pollutants Control and Water Quality Safeguard, Department of municipal and environmental Engineering, School of civil engineering, Beijing Jiaotong University, Beijing 100044, PR China
| | - Shaobin Sun
- Beijing International Scientific and Technological Cooperation Base of Water Pollution Control Techniques for Antibiotics and Resistance Genes, Beijing Key Laboratory of Aqueous Typical Pollutants Control and Water Quality Safeguard, Department of municipal and environmental Engineering, School of civil engineering, Beijing Jiaotong University, Beijing 100044, PR China
| | - Hong Yao
- Beijing International Scientific and Technological Cooperation Base of Water Pollution Control Techniques for Antibiotics and Resistance Genes, Beijing Key Laboratory of Aqueous Typical Pollutants Control and Water Quality Safeguard, Department of municipal and environmental Engineering, School of civil engineering, Beijing Jiaotong University, Beijing 100044, PR China
| | - Changqing Liu
- Department of Municipal and Environmental Engineering, Qingdao University of Technology, Qingdao 266033, PR China
| | - Joshua Young
- Otto H. York Department of Chemical and Materials Engineering, New Jersey Institute of Technology, Newark, NJ 07102, USA
| | - Wen Zhang
- John A. Reif, Jr. Department of Civil and Environmental Engineering, New Jersey Institute of Technology, Newark, NJ 07102, USA; Otto H. York Department of Chemical and Materials Engineering, New Jersey Institute of Technology, Newark, NJ 07102, USA.
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5
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Li H, Liang Y, Liu S, Zhang W, Bi Y, Gong Y, Lei W. Crystal phase transition and polyhedron transformation towards the evolution of photoluminescence and the improvement of thermal stability in efficient blue-emitting Ba 0.47-xSr 0.50+xAl 2Si 2O 8:Eu 2. Dalton Trans 2021; 50:12147-12158. [PMID: 34519741 DOI: 10.1039/d1dt01140e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Investigations into novel single-phase phosphors with outstanding luminescence properties and excellent thermal stability are urgently needed in the lighting field. In this work, a crystal phase transition and polyhedron transformation strategy via cation substitution has been proposed. Via controlling the Sr/Ba ratio, the structural evolution of the phosphor from a monocelsian phase to a hexacelsian or feldspar phase and the variation of the local environments of Eu2+ sites are correspondingly studied in Ba0.47-xSr0.50+xAl2Si2O8:0.03Eu. Consequently, the optimal Ba0.17Sr0.80Al2Si2O8:0.03Eu sample exhibits a higher intensity, up to 15.2-fold that of Ba0.97Al2Si2O8:0.03Eu. A narrower full-width-at-half-maximum of 73 nm, better color purity of 82.96%, and an internal quantum yield of 82.3% can be realized. With an increase in temperature, the emission intensity losses of samples from x = -10.0-47.0% are no more than 10.0% at 473 K. Moreover, a WLED (CCT = 5210 K; CRI = 90.3) fabricated using Ba0.17Sr0.80Al2Si2O8:0.03Eu displays warmer white light than one fabricated using BaMgAl10O17:Eu under the same assembly and test conditions. Analysis shows that the structural evolution with reduced polyhedral symmetry and the condensed crystal structure with fortified rigidity are responsible for the improvement in properties. This discovery demonstrates that the utilization of a crystal phase transition and symmetrical coordination is an efficient way to develop novel efficient phosphors and other related materials.
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Affiliation(s)
- Haoran Li
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China.
| | - Yujun Liang
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China.
| | - Shiqi Liu
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China.
| | - Weilun Zhang
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China.
| | - Yanying Bi
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China.
| | - Yuming Gong
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China.
| | - Wen Lei
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China. .,School of Electrical, Electronic and Computer Engineering, The University of Western Australia, 35 Stirling Highway Crawley, WA 6009, Australia.
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6
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Ghosh SK, Perla VK, Mallick K. Enhancement of dielectric and electric-field-induced polarization of bismuth fluoride nanoparticles within the layered structure of carbon nitride. Sci Rep 2020; 10:14835. [PMID: 32908224 PMCID: PMC7481291 DOI: 10.1038/s41598-020-71953-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Accepted: 08/24/2020] [Indexed: 11/09/2022] Open
Abstract
A single-pot, wet chemical method has been reported for the synthesis of bismuth fluoride nanoparticles (BF) and functionalized BF within the network of carbon nitride (BFCN). In BFCN, a structural transformation of BF, from cubic to pseudo-cubic (as evidenced by Rietveld refinement analysis), confirmed the contribution of carbon nitride (CN) on functionalization. The effect of functionalization of BF has been investigated through dielectric and field-induced polarization studies under different temperature and frequency conditions. Enhancement of dielectric constant values was noticed in BFCN as compared with BF system, in the order of 2.5 (30 °C) and 8.0 (100 °C) at 100 Hz. Fatigue-free maximum polarization values of 0.041 µC/cm2 and 0.054 µC/cm2, under the electric field of 5 kV/mm, were achieved for BF and BFCN samples, respectively, for 5 × 103 cycles.
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Affiliation(s)
- Sarit K Ghosh
- Department of Chemical Sciences, University of Johannesburg, P.O. Box: 524, Auckland Park, 2006, South Africa
| | - Venkata K Perla
- Department of Chemical Sciences, University of Johannesburg, P.O. Box: 524, Auckland Park, 2006, South Africa
| | - Kaushik Mallick
- Department of Chemical Sciences, University of Johannesburg, P.O. Box: 524, Auckland Park, 2006, South Africa.
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7
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Jiang D, Wang Y, Li H, Yang Z, Pan S. BaBOF3: a new aurivillius-like borate containing two types of F atoms. Dalton Trans 2018; 47:5157-5160. [DOI: 10.1039/c8dt00403j] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new Aurivillius-like fluorine-containing borate, BaBOF3, featuring both structural characteristics of borate fluorides and fluorooxoborates has been synthesized.
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Affiliation(s)
- Dequan Jiang
- CAS Key Laboratory of Functional Materials and Devices for Special Environments
- Xinjiang Technical Institute of Physics & Chemistry
- CAS
- Xinjiang Key Laboratory of Electronic Information Materials and Devices
- Urumqi 830011
| | - Ying Wang
- CAS Key Laboratory of Functional Materials and Devices for Special Environments
- Xinjiang Technical Institute of Physics & Chemistry
- CAS
- Xinjiang Key Laboratory of Electronic Information Materials and Devices
- Urumqi 830011
| | - Hao Li
- CAS Key Laboratory of Functional Materials and Devices for Special Environments
- Xinjiang Technical Institute of Physics & Chemistry
- CAS
- Xinjiang Key Laboratory of Electronic Information Materials and Devices
- Urumqi 830011
| | - Zhihua Yang
- CAS Key Laboratory of Functional Materials and Devices for Special Environments
- Xinjiang Technical Institute of Physics & Chemistry
- CAS
- Xinjiang Key Laboratory of Electronic Information Materials and Devices
- Urumqi 830011
| | - Shilie Pan
- CAS Key Laboratory of Functional Materials and Devices for Special Environments
- Xinjiang Technical Institute of Physics & Chemistry
- CAS
- Xinjiang Key Laboratory of Electronic Information Materials and Devices
- Urumqi 830011
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8
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Chen R, Chen Y, Zeng X, Li J, Luo X. Transition metal phosphonates with pyridyl-based phosphonic acids: synthesis, characterization and luminescence properties. J COORD CHEM 2017. [DOI: 10.1080/00958972.2017.1280158] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Rongyi Chen
- Fujian Provincial Key Laboratory of Advanced Materials, College of Materials, Xiamen University, Xiamen, P.R. China
| | - Yuqing Chen
- Fujian Provincial Key Laboratory of Advanced Materials, College of Materials, Xiamen University, Xiamen, P.R. China
| | - Xue Zeng
- Fujian Provincial Key Laboratory of Advanced Materials, College of Materials, Xiamen University, Xiamen, P.R. China
| | - Jingtang Li
- Fujian Provincial Key Laboratory of Advanced Materials, College of Materials, Xiamen University, Xiamen, P.R. China
| | - Xuetao Luo
- Fujian Provincial Key Laboratory of Advanced Materials, College of Materials, Xiamen University, Xiamen, P.R. China
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9
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Ren X, Fan H, Zhao Y, Liu Z. Flexible Lead-Free BiFeO 3/PDMS-Based Nanogenerator as Piezoelectric Energy Harvester. ACS APPLIED MATERIALS & INTERFACES 2016; 8:26190-26197. [PMID: 27611593 DOI: 10.1021/acsami.6b04497] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Perovskite ferroelectric BiFeO3 has been extensively researched in many application fields, but has rarely been investigated for the energy conversion of tiny mechanical motions in electricity in spite of its large theoretical remnant polarization. Here we demonstrate the fabrication of a flexible piezoelectric nanogenerator based on BiFeO3 nanoparticles (NPs), which were synthesized using a sol-gel process. The BiFeO3 NPs-PDMS composite device exhibits an output open circuit voltage of ∼3 V and short circuit current of ∼250 nA under repeated hand pressing. The output generation mechanism from the PNG is discussed on the basis of the alignment of electric dipoles in the composite film. It is demonstrated that the output power from the PNG can directly drive the light-emitting diode (LED) and charge capacitor. These results demonstrate that BiFeO3 nanomaterials have the potential for large-scale lead-free piezoelectric nanogenerator applications.
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Affiliation(s)
- Xiaohu Ren
- State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University , Xi'an 710072, China
| | - Huiqing Fan
- State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University , Xi'an 710072, China
| | - Yuwei Zhao
- State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University , Xi'an 710072, China
| | - Zhiyong Liu
- State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University , Xi'an 710072, China
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10
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Zhang Q, Zheng X, Sun H, Li W, Wang X, Hao X, An S. Dual-Mode Luminescence Modulation upon Visible-Light-Driven Photochromism with High Contrast for Inorganic Luminescence Ferroelectrics. ACS APPLIED MATERIALS & INTERFACES 2016; 8:4789-4794. [PMID: 26820999 DOI: 10.1021/acsami.5b12262] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A luminescence ferroelectric oxide, Na(0.5)Bi(2.5)Nb2O9 (NBN), system with bismuth layer structure introduced by lanthanide ion (Er(3+)) has been demonstrated to exhibit reversible, high-contrast luminescence modulation (95%) and excellent fatigue resistance based on visible-light-driven photochromism (407 nm or sunlight). The coloration and decoloration process can be effectively read out by dual modes, upconversion and downshifting, and reversibly converted between green and dark gray by alternating visible light or sunlight irradiation and thermal stimulus. The luminescence modulation degree upon photochromic reactions is strongly dependent upon irradiation light wavelength and irradiation time. After undergoing several cycles, there are no significant degradations, showing high reversibility. Considering its high-contrast photoswitchable luminescence feature and intrinsic ferroelectricity of NBN host, NBN-based multifunctional materials can be suggested as a promising candidate for new potentials in photonic storage and optoelectronic multifunctional devices.
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Affiliation(s)
- Qiwei Zhang
- School of Materials and Metallurgy, Inner Mongolia University of Science and Technology , 7 Arerding Street, Kun District, Baotou 014010, People's Republic of China
| | - Xuewen Zheng
- School of Materials and Metallurgy, Inner Mongolia University of Science and Technology , 7 Arerding Street, Kun District, Baotou 014010, People's Republic of China
| | - Haiqin Sun
- School of Materials and Metallurgy, Inner Mongolia University of Science and Technology , 7 Arerding Street, Kun District, Baotou 014010, People's Republic of China
| | - Wenqing Li
- School of Materials and Metallurgy, Inner Mongolia University of Science and Technology , 7 Arerding Street, Kun District, Baotou 014010, People's Republic of China
| | - Xusheng Wang
- Functional Materials Research Laboratory, School of Materials Science and Engineering, Tongji University , 4800 Caoyang Road, Shanghai 201804, People's Republic of China
| | - Xihong Hao
- School of Materials and Metallurgy, Inner Mongolia University of Science and Technology , 7 Arerding Street, Kun District, Baotou 014010, People's Republic of China
| | - Shengli An
- School of Materials and Metallurgy, Inner Mongolia University of Science and Technology , 7 Arerding Street, Kun District, Baotou 014010, People's Republic of China
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11
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Jiang L, Xu X, Zhou Y, Zhang Y, Yang Q. Strain tunability of the downward effective polarization of mechanically written domains in ferroelectric nanofilms. RSC Adv 2016. [DOI: 10.1039/c6ra13128j] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Nano 180° domains written by local mechanical force via the flexoelectric effect have recently attracted great attention since they may enable applications in which memory bits are written mechanically.
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Affiliation(s)
- Limei Jiang
- Hunan Provincial Key Laboratory of Thin Film Materials and Devices
- School of Materials Science and Engineering
- Xiangtan University
- Xiangtan 411105
- China
| | - Xiaofei Xu
- Hunan Provincial Key Laboratory of Thin Film Materials and Devices
- School of Materials Science and Engineering
- Xiangtan University
- Xiangtan 411105
- China
| | - Yichun Zhou
- Hunan Provincial Key Laboratory of Thin Film Materials and Devices
- School of Materials Science and Engineering
- Xiangtan University
- Xiangtan 411105
- China
| | - Yi Zhang
- Hunan Provincial Key Laboratory of Thin Film Materials and Devices
- School of Materials Science and Engineering
- Xiangtan University
- Xiangtan 411105
- China
| | - Qiong Yang
- Hunan Provincial Key Laboratory of Thin Film Materials and Devices
- School of Materials Science and Engineering
- Xiangtan University
- Xiangtan 411105
- China
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12
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Tian H, Fan H, Dong G, Ma L, Ma J. NiO/ZnO p–n heterostructures and their gas sensing properties for reduced operating temperature. RSC Adv 2016. [DOI: 10.1039/c6ra19520b] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The operating temperature of ZnO-based gas sensors has been decreased, which is attributed to the formation of NiO/ZnO p–n heterostructures.
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Affiliation(s)
- Hailin Tian
- State Key Laboratory of Solidification Processing
- School of Materials Science and Engineering
- Northwestern Polytechnical University
- Xi'an 710072
- P. R. China
| | - Huiqing Fan
- State Key Laboratory of Solidification Processing
- School of Materials Science and Engineering
- Northwestern Polytechnical University
- Xi'an 710072
- P. R. China
| | - Guangzhi Dong
- State Key Laboratory of Solidification Processing
- School of Materials Science and Engineering
- Northwestern Polytechnical University
- Xi'an 710072
- P. R. China
| | - Longtao Ma
- State Key Laboratory of Solidification Processing
- School of Materials Science and Engineering
- Northwestern Polytechnical University
- Xi'an 710072
- P. R. China
| | - Jiangwei Ma
- State Key Laboratory of Solidification Processing
- School of Materials Science and Engineering
- Northwestern Polytechnical University
- Xi'an 710072
- P. R. China
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13
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Du C, Li D, He Q, Liu J, Li W, He G, Wang Y. Design and simple synthesis of composite Bi12TiO20/Bi4Ti3O12 with a good photocatalytic quantum efficiency and high production of photo-generated hydroxyl radicals. Phys Chem Chem Phys 2016; 18:26530-26538. [DOI: 10.1039/c6cp05223a] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hybrid Bi12TiO20/Bi4Ti3O12 composites with a good photocatalytic quantum efficiency explained using a Z-scheme mechanism.
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Affiliation(s)
- Chun Du
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, and Institute for Advanced Materials
- School of Physics and Telecommunication of South China Normal University
- Guangzhou 510006
- People's Republic of China
| | - Donghai Li
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, and Institute for Advanced Materials
- School of Physics and Telecommunication of South China Normal University
- Guangzhou 510006
- People's Republic of China
| | - Qinyu He
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, and Institute for Advanced Materials
- School of Physics and Telecommunication of South China Normal University
- Guangzhou 510006
- People's Republic of China
| | - Junming Liu
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, and Institute for Advanced Materials
- School of Physics and Telecommunication of South China Normal University
- Guangzhou 510006
- People's Republic of China
| | - Wei Li
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, and Institute for Advanced Materials
- School of Physics and Telecommunication of South China Normal University
- Guangzhou 510006
- People's Republic of China
| | - Guannan He
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, and Institute for Advanced Materials
- School of Physics and Telecommunication of South China Normal University
- Guangzhou 510006
- People's Republic of China
| | - Yinzhen Wang
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, and Institute for Advanced Materials
- School of Physics and Telecommunication of South China Normal University
- Guangzhou 510006
- People's Republic of China
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14
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Zhang Q, Sun H, Wang X, Hao X, An S. Reversible Luminescence Modulation upon Photochromic Reactions in Rare-Earth Doped Ferroelectric Oxides by in Situ Photoluminescence Spectroscopy. ACS APPLIED MATERIALS & INTERFACES 2015; 7:25289-25297. [PMID: 26496504 DOI: 10.1021/acsami.5b07345] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Reversible luminescence photoswitching upon photochromic reactions with excellent reproducibility is achieved in a new inorganic luminescence material: Na(0.5)Bi(2.5)Nb2O9: Pr(3+) (NBN:Pr) ferroelectric oxides. Upon blue light (452 nm) or sunlight irradiation, the material exhibits a reversible photochromism (PC) performance between dark gray and green color by alternating visible light and thermal stimulus without inducing any structure changes and is accompanied by a red emission at 613 nm. The coloration and decoloration process can be quantitatively evaluated by in situ photoluminescence spectroscopy. Meanwhile, the luminescence emission intensity based on PC reactions is effectively tuned by changing irradiation time and excitation wavelength, and the degree of luminescence modulation has no significant degradation after several periods, showing very excellent reproducibility. On the basis of the luminescence modulation behavior, a double-exponential relaxation model is proposed, and a combined equation is adopted to well describe the luminescence response to light irradiation, being in agreement with the experimental data.
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Affiliation(s)
- Qiwei Zhang
- School of Materials and Metallurgy, Inner Mongolia University of Science and Technology , 7# Arerding Street, Kun District, Baotou 014010, China
| | - Haiqin Sun
- School of Materials and Metallurgy, Inner Mongolia University of Science and Technology , 7# Arerding Street, Kun District, Baotou 014010, China
| | - Xusheng Wang
- Functional Materials Research Laboratory, School of Materials Science and Engineering, Tongji University , 4800 Caoyang Road, Shanghai 201804, China
| | - Xihong Hao
- School of Materials and Metallurgy, Inner Mongolia University of Science and Technology , 7# Arerding Street, Kun District, Baotou 014010, China
| | - Shengli An
- School of Materials and Metallurgy, Inner Mongolia University of Science and Technology , 7# Arerding Street, Kun District, Baotou 014010, China
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15
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Li L, Zhang Y, Bai W, Shen B, Zhai J, Chen H. Synthesis of high aspect ratio (K, Na)NbO3 plate-like particles and study on the synthesis mechanism. Dalton Trans 2015; 44:11621-5. [DOI: 10.1039/c5dt01414j] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Plate-like NaNbO3 (NN) templates have been successfully synthesized via a two-step molten salt method using K2CO3 as a raw material at 970 °C, which is below the topochemical reaction temperature using Na2CO3 as the raw material (higher than 1000 °C).
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Affiliation(s)
- Lingyu Li
- Key Laboratory of Advanced Civil Engineering Materials
- Ministry of Education
- School of Materials Science & Engineering
- Tongji University
- Shanghai 201804
| | - Yang Zhang
- Key Laboratory of Advanced Civil Engineering Materials
- Ministry of Education
- School of Materials Science & Engineering
- Tongji University
- Shanghai 201804
| | - Wangfeng Bai
- Key Laboratory of Advanced Civil Engineering Materials
- Ministry of Education
- School of Materials Science & Engineering
- Tongji University
- Shanghai 201804
| | - Bo Shen
- Key Laboratory of Advanced Civil Engineering Materials
- Ministry of Education
- School of Materials Science & Engineering
- Tongji University
- Shanghai 201804
| | - Jiwei Zhai
- Key Laboratory of Advanced Civil Engineering Materials
- Ministry of Education
- School of Materials Science & Engineering
- Tongji University
- Shanghai 201804
| | - Haydn Chen
- Institute of Applied Physics and Materials Engineering
- Faculty of Science and Technology
- University of Macau
- Macau
- China
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16
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Zhang Q, Sun H, Li H, Wang X, Hao X, Song J, An S. Reversible photoresponsive switching in Bi2.5Na0.5Nb2O9-based luminescent ferroelectrics. Chem Commun (Camb) 2015; 51:16316-9. [DOI: 10.1039/c5cc06833a] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Reversible luminescence modulation upon photochromic reactions with excellent reproducibility is achieved from Eu3+ doped Bi2.5Na0.5Nb2O9 multifunctional ferroelectric oxides.
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Affiliation(s)
- Qiwei Zhang
- School of Materials and Metallurgy
- Inner Mongolia University of Science and Technology
- Baotou 014010
- China
| | - Haiqin Sun
- School of Materials and Metallurgy
- Inner Mongolia University of Science and Technology
- Baotou 014010
- China
| | - Hao Li
- School of Materials and Metallurgy
- Inner Mongolia University of Science and Technology
- Baotou 014010
- China
| | - Xusheng Wang
- Functional Materials Research Laboratory
- School of Materials Science and Engineering Tongji University
- Shanghai 201804
- China
| | - Xihong Hao
- School of Materials and Metallurgy
- Inner Mongolia University of Science and Technology
- Baotou 014010
- China
| | - Jinling Song
- School of Materials and Metallurgy
- Inner Mongolia University of Science and Technology
- Baotou 014010
- China
| | - Shengli An
- School of Materials and Metallurgy
- Inner Mongolia University of Science and Technology
- Baotou 014010
- China
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17
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Xiao P, Guo Y, Tian M, Zheng Q, Jiang N, Wu X, Xia Z, Lin D. Improved ferroelectric/piezoelectric properties and bright green/UC red emission in (Li,Ho)-doped CaBi4Ti4O15 multifunctional ceramics with excellent temperature stability and superior water-resistance performance. Dalton Trans 2015; 44:17366-80. [DOI: 10.1039/c5dt02728d] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Multifunctional materials based on rare earth ion doped ferro/piezoelectrics have attracted considerable attention in recent years.
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Affiliation(s)
- Ping Xiao
- College of Chemistry and Materials Science
- Sichuan Normal University
- Chengdu 610066
- China
| | - Yongquan Guo
- College of Chemistry and Materials Science
- Sichuan Normal University
- Chengdu 610066
- China
| | - Mijie Tian
- College of Chemistry and Materials Science
- Sichuan Normal University
- Chengdu 610066
- China
| | - Qiaoji Zheng
- College of Chemistry and Materials Science
- Sichuan Normal University
- Chengdu 610066
- China
| | - Na Jiang
- College of Chemistry and Materials Science
- Sichuan Normal University
- Chengdu 610066
- China
| | - Xiaochun Wu
- College of Chemistry and Materials Science
- Sichuan Normal University
- Chengdu 610066
- China
| | - Zhiguo Xia
- School of Materials Sciences and Engineering
- University of Science and Technology Beijing
- Beijing 100083
- China
| | - Dunmin Lin
- College of Chemistry and Materials Science
- Sichuan Normal University
- Chengdu 610066
- China
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