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Ganguly S, Pesquera D, Garcia DM, Saeed U, Mirzamohammadi N, Santiso J, Padilla J, Roque JMC, Laulhé C, Berenguer F, Villanueva LG, Catalan G. Photostrictive Actuators Based on Freestanding Ferroelectric Membranes. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2310198. [PMID: 38546029 DOI: 10.1002/adma.202310198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 03/12/2024] [Indexed: 04/26/2024]
Abstract
Complex oxides offer a wide range of functional properties, and recent advances in the fabrication of freestanding membranes of these oxides are adding new mechanical degrees of freedom to this already rich functional ecosystem. Here, photoactuation is demonstrated in freestanding thin film resonators of ferroelectric Barium Titanate (BaTiO3) and paraelectric Strontium Titanate (SrTiO3). The free-standing films, transferred onto perforated supports, act as nano-drums, oscillating at their natural resonance frequency when illuminated by a frequency-modulated laser. The light-induced deflections in the ferroelectric BaTiO3 membranes are two orders of magnitude larger than in the paraelectric SrTiO3 ones. Time-resolved X-ray micro-diffraction under illumination and temperature-dependent holographic interferometry provide combined evidence for the photostrictive strain in BaTiO3 originating from a partial screening of ferroelectric polarization by photo-excited carriers, which decreases the tetragonality of the unit cell. These findings showcase the potential of photostrictive freestanding ferroelectric films as wireless actuators operated by light.
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Affiliation(s)
- Saptam Ganguly
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, Barcelona, 08193, Catalonia, Spain
| | - David Pesquera
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, Barcelona, 08193, Catalonia, Spain
| | - Daniel Moreno Garcia
- Advanced NEMS Laboratory, Institute of Mechanical Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, 1015, Switzerland
| | - Umair Saeed
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, Barcelona, 08193, Catalonia, Spain
| | - Nona Mirzamohammadi
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, Barcelona, 08193, Catalonia, Spain
| | - José Santiso
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, Barcelona, 08193, Catalonia, Spain
| | - Jessica Padilla
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, Barcelona, 08193, Catalonia, Spain
| | - José Manuel Caicedo Roque
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, Barcelona, 08193, Catalonia, Spain
| | - Claire Laulhé
- Université Paris-Saclay, Synchrotron SOLEIL, Saint-Aubin, 91190, France
| | - Felisa Berenguer
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin BP 48, Gif-sur-Yvette, 91190, France
| | - Luis Guillermo Villanueva
- Advanced NEMS Laboratory, Institute of Mechanical Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, 1015, Switzerland
| | - Gustau Catalan
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, Barcelona, 08193, Catalonia, Spain
- ICREA - Institució Catalana de Recerca i Estudis Avançats, Barcelona, 08010, Catalonia
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2
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Nakashima S, Kimura K, Happo N, Ang AKR, Yamamoto Y, Sekhar H, Osaka AI, Hayashi K, Fujisawa H. Intermediate multidomain state in single-crystalline Mn-doped BiFeO 3 thin films during ferroelectric polarization switching. Sci Rep 2024; 14:14358. [PMID: 38906976 PMCID: PMC11192801 DOI: 10.1038/s41598-024-65215-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Accepted: 06/18/2024] [Indexed: 06/23/2024] Open
Abstract
A intermediate multidomain state and large crystallographic tilting of 1.78° for the (hh0)pc planes of a (001)pc-oriented single-domain Mn-doped BiFeO3 (BFMO) thin film were found when an electric field was applied along the [110]pc direction. The anomalous crystallographic tilting was caused by ferroelastic domain switching of the 109° domain switching. In addition, ferroelastic domain switching occurred via an intermediate multidomain state. To investigate these switching dynamics under an electric field, we used in situ fluorescent X-ray induced Kossel line pattern measurements with synchrotron radiation. In addition, in situ inverse X-ray fluorescence holography (XFH) experiments revealed that atomic displacement occurred under an applied electric field. We attributed the atomic displacement to crystallographic tilting induced by a converse piezoelectric effect. Our findings provide important insights for the design of piezoelectric and ferroelectric materials and devices.
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Affiliation(s)
- Seiji Nakashima
- Department of Electronics and Computer Science, Graduate School of Engineering, University of Hyogo, Himeji, Hyogo, 671-2201, Japan.
| | - Koji Kimura
- Department of Physical Science and Engineering, Nagoya Institute of Technology, Nagoya, 466-8555, Japan
- Research Center for Advanced Measurement and Characterization, National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki, 305-0047, Japan
- Japan Synchrotron Radiation Research Institute, Super Photon Ring-8GeV (SPring-8), Sayo, 679-5198, Japan
| | - Naohisa Happo
- Department of Computer and Network Engineering, Graduate School of Information Sciences, Hiroshima City University, Asa-Minami-Ku, Hiroshima, 731-3194, Japan
| | | | - Yuta Yamamoto
- Graduate School of Science and Technology, Nara Institute of Science and Technology, Ikoma, 630-0192, Japan
| | - Halubai Sekhar
- Department of Physical Science and Engineering, Nagoya Institute of Technology, Nagoya, 466-8555, Japan
- Japan Synchrotron Radiation Research Institute, Super Photon Ring-8GeV (SPring-8), Sayo, 679-5198, Japan
| | - Ai I Osaka
- Department of Electronics and Computer Science, Graduate School of Engineering, University of Hyogo, Himeji, Hyogo, 671-2201, Japan
| | - Koichi Hayashi
- Department of Physical Science and Engineering, Nagoya Institute of Technology, Nagoya, 466-8555, Japan
- Japan Synchrotron Radiation Research Institute, Super Photon Ring-8GeV (SPring-8), Sayo, 679-5198, Japan
| | - Hironori Fujisawa
- Department of Electronics and Computer Science, Graduate School of Engineering, University of Hyogo, Himeji, Hyogo, 671-2201, Japan
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3
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Li Z, Varrassi L, Yang Y, Franchini C, Bellaiche L, He J. Ultrastrong Coupling between Polar Distortion and Optical Properties in Ferroelectric MoBr 2O 2. J Am Chem Soc 2024; 146:15411-15419. [PMID: 38780106 DOI: 10.1021/jacs.4c03296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Abstract
Tuning the properties of materials by using external stimuli is crucial for developing versatile smart materials. Strong coupling among the order parameters within a single-phase material constitutes a potent foundation for achieving precise property control. However, cross-coupling is fairly weak in most single materials. Leveraging first-principles calculations, we demonstrate a layered mixed anion compound MoBr2O2 that exhibits electric-field switchable spontaneous polarization and ultrastrong coupling between polar distortion and electronic structures as well as optical properties. It offers feasible avenues of achieving tunable Rashba spin-splitting, electrochromism, thermochromism, photochromism, and nonlinear optics by applying an external electric field to a single domain sample and heating, as well as intense light illumination. Additionally, it exhibits an exceptionally large photostrictive effect. These findings not only showcase the feasibility of achieving multiple order parameter coupling within a single material but also pave the way for comprehensive applications based on property control, such as energy harvesting, information processing, and ultrafast control.
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Affiliation(s)
- Zhaojun Li
- School of Mathematics and Physics, University of Science and Technology Beijing, Beijing 100083, China
| | - Lorenzo Varrassi
- Department of Physics and Astronomy "Augusto Righi", Alma Mater Studiorum, Università di Bologna, Bologna 40127, Italy
| | - Yali Yang
- School of Mathematics and Physics, University of Science and Technology Beijing, Beijing 100083, China
| | - Cesare Franchini
- Department of Physics and Astronomy "Augusto Righi", Alma Mater Studiorum, Università di Bologna, Bologna 40127, Italy
- Faculty of Physics and Center for Computational Materials Science, University of Vienna, Kolingasse 14-16, Vienna 1090, Austria
| | - Laurent Bellaiche
- Smart Ferroic Materials Center, Physics Department and Institute for Nanoscience and Engineering, University of Arkansas, Fayetteville, Arkansas 72701, United States
| | - Jiangang He
- School of Mathematics and Physics, University of Science and Technology Beijing, Beijing 100083, China
- Key Laboratory of Advanced Materials and Devices for Post-Moore Chips, Ministry of Education, University of Science and Technology Beijing, Beijing 100083, China
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4
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Li N, Lee HJ, Sri Gyan D, Ahn Y, Landahl EC, Carnis J, Lee JY, Kim TY, Unithrattil S, Jo JY, Chun SH, Kim S, Park SY, Eom I, Adamo C, Li SJ, Kaaret JZ, Schlom DG, Wen H, Benedek NA, Evans PG. Ultrafast Optically Induced Perturbation of Oxygen Octahedral Rotations in Multiferroic BiFeO 3 Thin Films. NANO LETTERS 2024; 24:6417-6424. [PMID: 38710072 DOI: 10.1021/acs.nanolett.4c01519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
The functional properties of complex oxides, including magnetism and ferroelectricity, are closely linked to subtle structural distortions. Ultrafast optical excitations provide the means to manipulate structural features and ultimately to affect the functional properties of complex oxides with picosecond-scale precision. We report that the lattice expansion of multiferroic BiFeO3 following above-bandgap optical excitation leads to distortion of the oxygen octahedral rotation (OOR) pattern. The continuous coupling between OOR and strain was probed using time-resolved X-ray free-electron laser diffraction with femtosecond time resolution. Density functional theory calculations predict a relationship between the OOR and the elastic strain consistent with the experiment, demonstrating a route to employing this approach in a wider range of systems. Ultrafast control of the functional properties of BiFeO3 thin films is enabled by this approach because the OOR phenomena are related to ferroelectricity, and via the Fe-O-Fe bond angles, the superexchange interaction between Fe atoms.
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Affiliation(s)
- Ni Li
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Hyeon Jun Lee
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
- Department of Materials Science and Engineering, Kangwon National University, Samcheok 25913, South Korea
| | - Deepankar Sri Gyan
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Youngjun Ahn
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Eric C Landahl
- Department of Physics and Astrophysics, DePaul University, Chicago, Illinois 60614, United States
| | - Jerome Carnis
- Aix Marseille Université, Université de Toulon, CNRS, IM2NP, Marseille 13013, France
- ESRF - The European Synchrotron, 71 Avenue des Martyrs, Grenoble 38000, France
| | - Jun Young Lee
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju 61005, South Korea
| | - Tae Yeon Kim
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju 61005, South Korea
| | - Sanjith Unithrattil
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju 61005, South Korea
| | - Ji Young Jo
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju 61005, South Korea
| | - Sae Hwan Chun
- Pohang Accelerator Laboratory, POSTECH, Pohang, Gyeongbuk 37673, South Korea
| | - Sunam Kim
- Pohang Accelerator Laboratory, POSTECH, Pohang, Gyeongbuk 37673, South Korea
| | - Sang-Youn Park
- Pohang Accelerator Laboratory, POSTECH, Pohang, Gyeongbuk 37673, South Korea
| | - Intae Eom
- Pohang Accelerator Laboratory, POSTECH, Pohang, Gyeongbuk 37673, South Korea
| | - Carolina Adamo
- Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Sabrina J Li
- Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Jeffrey Z Kaaret
- School of Applied and Engineering Physics, Cornell University, Ithaca, New York 14853, United States
| | - Darrell G Schlom
- Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853, United States
- Kavli Institute at Cornell for Nanoscale Science, Ithaca, New York 14853, United States
- Leibniz-Institut für Kristallzüchtung, Max-Born-Straße 2, 12489 Berlin, Germany
| | - Haidan Wen
- Materials Science Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Nicole A Benedek
- Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Paul G Evans
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
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5
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Liao WQ, Zeng YL, Tang YY, Xu YQ, Huang XY, Yu H, Lv HP, Chen XG, Xiong RG. Dual Breaking of Molecular Orbitals and Spatial Symmetry in an Optically Controlled Ferroelectric. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2305471. [PMID: 37607776 DOI: 10.1002/adma.202305471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 08/12/2023] [Indexed: 08/24/2023]
Abstract
As particles carry quantified energy, photon radiation enables orbital transitions of energy levels, leading to changes in the spin state of electrons. The resulting switchable structural bistability may bring a new paradigm for manipulating ferroelectric polarization. However, the studies on molecular orbital breaking in the ferroelectric field remain blank. Here, for the first time, a new mechanism of ferroelectrics-dual breaking of molecular orbitals and spatial symmetry, demonstrated in a photochromic organic crystal with light-induced polarization switching, is formally proposed. By alternating the ultraviolet/visible light irradiation, the states of electron spin and the radial distribution p atomic orbitals experience a change, showing a reversible switch from "shoulder-to-shoulder" form to a "head-to-head" form. This reflects a reversible conversion between π and σ bonds, which induces and couples with the variation of spatial symmetry. The intersection of spatial symmetry breaking and molecular orbital breaking in ferroelectrics present in this work will be more conducive to data encryption and anticounterfeiting.
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Affiliation(s)
- Wei-Qiang Liao
- Ordered Matter Science Research Center, Nanchang University, Nanchang, 330031, P. R. China
| | - Yu-Ling Zeng
- Ordered Matter Science Research Center, Nanchang University, Nanchang, 330031, P. R. China
| | - Yuan-Yuan Tang
- Ordered Matter Science Research Center, Nanchang University, Nanchang, 330031, P. R. China
| | - Yu-Qiu Xu
- Ordered Matter Science Research Center, Nanchang University, Nanchang, 330031, P. R. China
| | - Xiao-Yun Huang
- Ordered Matter Science Research Center, Nanchang University, Nanchang, 330031, P. R. China
| | - Hang Yu
- Ordered Matter Science Research Center, Nanchang University, Nanchang, 330031, P. R. China
| | - Hui-Peng Lv
- Ordered Matter Science Research Center, Nanchang University, Nanchang, 330031, P. R. China
| | - Xiao-Gang Chen
- Ordered Matter Science Research Center, Nanchang University, Nanchang, 330031, P. R. China
| | - Ren-Gen Xiong
- Ordered Matter Science Research Center, Nanchang University, Nanchang, 330031, P. R. China
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6
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Li X, Zhang F, Yue Z, Wang Q, Sun Z, Luo J, Liu X. Centimeter-Size Single Crystals of Halide Perovskite Photoferroelectric Solid Solution with Ultrahigh Pyroelectricity Boosted Photodetection. Angew Chem Int Ed Engl 2023; 62:e202305310. [PMID: 37486543 DOI: 10.1002/anie.202305310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Revised: 07/23/2023] [Accepted: 07/24/2023] [Indexed: 07/25/2023]
Abstract
Photoferroelectrics, especially emerging halide perovskite ferroelectrics, have motivated tremendous interests owing to their fascinating bulk photovoltaic effect (BPVE) and cross-coupled functionalities. However, solid solutions of halide perovskite photoferroelectrics with controllable structure and enhanced performance are scarcely explored. Herein, through mixing cage cation, a homogeneous halide perovskite photoferroelectric PA2 FAx MA1-x Pb2 Br7 solid solution (PA, FA and MA are CH3 CH2 CH2 NH3 + , NH2 CHNH2 + and CH3 NH3 + , 0≤x≤1) has been developed, which demonstrates tunable Curie temperature in a wide range of 263-323 K and excellent optoelectrical features. As the component adjusted to x=0.7, the bulk crystal demonstrates ultrahigh pyroelectric coefficient up to 1.48 μC cm-2 K-1 around room temperature. Strikingly, benefiting from the light-induced pyroelectricity and remarkable BPVE, a self-powered and sensitive photodetector based solid solution crystals with boosted responsivity and detectivity over than 1300 % has been achieved. This pioneering work sheds light on the exploration of photoferroelectric solid solutions towards high-performance photoelectronic devices.
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Affiliation(s)
- Xiaoqi Li
- State Key Laboratory of Structure Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P. R. China
- University of Chinese Academy of Science, Beijing, 100049, P. R. China
| | - Fen Zhang
- State Key Laboratory of Structure Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P. R. China
| | - Zengshan Yue
- State Key Laboratory of Structure Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P. R. China
| | - Qianxi Wang
- State Key Laboratory of Structure Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P. R. China
| | - Zhihua Sun
- State Key Laboratory of Structure Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P. R. China
- University of Chinese Academy of Science, Beijing, 100049, P. R. China
| | - Junhua Luo
- State Key Laboratory of Structure Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P. R. China
- University of Chinese Academy of Science, Beijing, 100049, P. R. China
| | - Xitao Liu
- State Key Laboratory of Structure Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P. R. China
- University of Chinese Academy of Science, Beijing, 100049, P. R. China
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7
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Hemme P, Philippe JC, Medeiros A, Alekhin A, Houver S, Gallais Y, Sacuto A, Forget A, Colson D, Mantri S, Xu B, Bellaiche L, Cazayous M. Tuning the Multiferroic Properties of BiFeO_{3} under Uniaxial Strain. PHYSICAL REVIEW LETTERS 2023; 131:116801. [PMID: 37774288 DOI: 10.1103/physrevlett.131.116801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 08/15/2023] [Indexed: 10/01/2023]
Abstract
More than twenty years ago, multiferroic compounds combining in particular magnetism and ferroelectricity were rediscovered. Since then, BiFeO_{3} has emerged as the most outstanding multiferroic by combining at room temperature almost all the fundamental or applicative properties that may be desired: electroactive spin wave excitations called electromagnons, conductive domain walls, or a low band gap of interest for magnonic devices. All these properties have so far only been discontinuously strain engineered in thin films according to the lattice parameter imposed by the substrate. Here we explore the ferroelectricity and the dynamic magnetic response of BiFeO_{3} bulk under continuously tunable uniaxial strain. Using elasto-Raman spectroscopy, we show that the ferroelectric soft mode is strongly enhanced under tensile strain and driven by the volume preserving deformation at low strain. The magnonic response is entirely modified with low energy magnon modes being suppressed for tensile strain above pointing out a transition from a cycloid to an homogeneous magnetic state. Effective Hamiltonian calculations show that the ferroelectric and the antiferrodistortive modes compete in the tensile regime. In addition, the homogeneous antiferromagnetic state becomes more stable compared to the cycloidal state above a +2% tensile strain close to the experimental value. Finally, we reveal the ferroelectric and magnetic orders of BiFeO_{3} under uniaxial strain and how the tensile strain allows us to unlock and to modify in a differentiated way the polarization and the magnetic structure.
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Affiliation(s)
- P Hemme
- Laboratoire Matériaux et Phénomènes Quantiques, Université Paris Cité, CNRS, 10 rue Alice Domon et Léonie Duquet, 75205 Paris Cedex 13, France
- Synchrotron SOLEIL, L'Orme des Merisiers Saint-Aubin, BP 48, 91192 Gif-sur-Yvette, France
| | - J-C Philippe
- Laboratoire Matériaux et Phénomènes Quantiques, Université Paris Cité, CNRS, 10 rue Alice Domon et Léonie Duquet, 75205 Paris Cedex 13, France
- Laboratoire de Physique des Solides, CNRS, Université Paris-Saclay, 91405 Orsay, France
| | - A Medeiros
- Laboratoire Matériaux et Phénomènes Quantiques, Université Paris Cité, CNRS, 10 rue Alice Domon et Léonie Duquet, 75205 Paris Cedex 13, France
- Université Paris-Saclay, CNRS, Centre de Nanosciences et de Nanotechnologies, 91120, Palaiseau, France
| | - A Alekhin
- Laboratoire Matériaux et Phénomènes Quantiques, Université Paris Cité, CNRS, 10 rue Alice Domon et Léonie Duquet, 75205 Paris Cedex 13, France
| | - S Houver
- Laboratoire Matériaux et Phénomènes Quantiques, Université Paris Cité, CNRS, 10 rue Alice Domon et Léonie Duquet, 75205 Paris Cedex 13, France
| | - Y Gallais
- Laboratoire Matériaux et Phénomènes Quantiques, Université Paris Cité, CNRS, 10 rue Alice Domon et Léonie Duquet, 75205 Paris Cedex 13, France
| | - A Sacuto
- Laboratoire Matériaux et Phénomènes Quantiques, Université Paris Cité, CNRS, 10 rue Alice Domon et Léonie Duquet, 75205 Paris Cedex 13, France
| | - A Forget
- Service de Physique de l'Etat Condensé, CEA Saclay, IRAMIS, SPEC (CNRS URA 2464), F-91191 Gif sur Yvette, France
| | - D Colson
- Service de Physique de l'Etat Condensé, CEA Saclay, IRAMIS, SPEC (CNRS URA 2464), F-91191 Gif sur Yvette, France
| | - S Mantri
- Physics Department and Institute for Nanoscience and Engineering, University of Arkansas, Fayetteville, Arkansas 72701, USA
| | - B Xu
- Institute of Theoretical and Applied Physics, Jiangsu Key Laboratory of Thin Films, School of Physical Science and Technology, Soochow University, Suzhou 215006, China
| | - L Bellaiche
- Physics Department and Institute for Nanoscience and Engineering, University of Arkansas, Fayetteville, Arkansas 72701, USA
| | - M Cazayous
- Laboratoire Matériaux et Phénomènes Quantiques, Université Paris Cité, CNRS, 10 rue Alice Domon et Léonie Duquet, 75205 Paris Cedex 13, France
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8
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Liu Y, Guo W, Hua L, Zeng X, Yang T, Fan Q, Ma Y, Gao C, Sun Z, Luo J. Giant Polarization Sensitivity via the Anomalous Photovoltaic Effect in a Two-Dimensional Perovskite Ferroelectric. J Am Chem Soc 2023; 145:16193-16199. [PMID: 37462120 DOI: 10.1021/jacs.3c05020] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/27/2023]
Abstract
Polarization sensitivity, which shows great potential in photoelectric detection, is expected to be significantly improved by the ferroelectric anomalous photovoltaic (APV) effect. However, it is challenging to explore new APV-active ferroelectrics due to severe polarization fatigue induced by the leakage current of photoexcited carriers. For the first time, we report a strong APV effect in a 2D hybrid perovskite ferroelectric assembled by alloying mixed organic cations, (HA)2(EA)2Pb3Br10 (1, where HA+ is n-hexylammonium and EA+ is ethylammonium), which has a large spontaneous polarization ∼3.8 μC/cm2 and high a Curie temperature ∼378 K. Its ferroelectricity allows a strong APV effect with an above-bandgap photovoltage up to 7.4 V, which exceeds its bandgap (∼2.7 eV). Most strikingly, based on the dependence on polarized-light angle, this strong APV effect renders the highest level of polarization sensitivity with a giant current ratio of ∼25, far beyond other 2D single-phase materials. This study sheds light on the exploration of APV-active ferroelectrics and inspires their future high-performance optoelectronic device applications.
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Affiliation(s)
- Yi Liu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, Fujian, People's Republic of China
| | - Wuqian Guo
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, Fujian, People's Republic of China
- University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing 100039, People's Republic of China
| | - Lina Hua
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, Fujian, People's Republic of China
| | - Xi Zeng
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, Fujian, People's Republic of China
| | - Tian Yang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, Fujian, People's Republic of China
| | - Qingshun Fan
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, Fujian, People's Republic of China
| | - Yu Ma
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, Fujian, People's Republic of China
- University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing 100039, People's Republic of China
| | - Changhao Gao
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, Fujian, People's Republic of China
| | - Zhihua Sun
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, Fujian, People's Republic of China
- University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing 100039, People's Republic of China
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou 350108, Fujian, People's Republic of China
| | - Junhua Luo
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, Fujian, People's Republic of China
- University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing 100039, People's Republic of China
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9
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Xu WJ, Li MF, Garcia AR, Romanyuk K, Martinho JMG, Zelenovskii P, Tselev A, Verissimo L, Zhang WX, Chen XM, Kholkin A, Rocha J. Molecular Design of a Metal-Nitrosyl Ferroelectric with Reversible Photoisomerization. J Am Chem Soc 2023. [PMID: 37329320 DOI: 10.1021/jacs.3c01530] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
The development of photo-responsive ferroelectrics whose polarization may be remotely controlled by optical means is of fundamental importance for basic research and technological applications. Herein, we report the design and synthesis of a new metal-nitrosyl ferroelectric crystal (DMA)(PIP)[Fe(CN)5(NO)] (1) (DMA = dimethylammonium, PIP = piperidinium) with potential phototunable polarization via a dual-organic-cation molecular design strategy. Compared to the parent non-ferroelectric (MA)2[Fe(CN)5(NO)] (MA = methylammonium) material with a phase transition at 207 K, the introduction of larger dual organic cations both lowers the crystal symmetry affording robust ferroelectricity and increases the energy barrier of molecular motions, endowing 1 with a large polarization of up to 7.6 μC cm-2 and a high Curie temperature (Tc) of 316 K. Infrared spectroscopy shows that the reversible photoisomerization of the nitrosyl ligand is accomplished by light irradiation. Specifically, the ground state with the N-bound nitrosyl ligand conformation can be reversibly switched to both the metastable state I (MSI) with isonitrosyl conformation and the metastable state II (MSII) with side-on nitrosyl conformation. Quantum chemistry calculations suggest that the photoisomerization significantly changes the dipole moment of the [Fe(CN)5(NO)]2- anion, thus leading to three ferroelectric states with different values of macroscopic polarization. Such optical accessibility and controllability of different ferroelectric states via photoinduced nitrosyl linkage isomerization open up a new and attractive route to optically controllable macroscopic polarization.
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Affiliation(s)
- Wei-Jian Xu
- Department of Chemistry & CICECO-Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Mao-Fan Li
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Ana R Garcia
- Centro de Química Estrutural, Institute of Molecular Sciences and Department of Chemical Engineering, Instituto Superior Técnico, University of Lisbon, 1049-001 Lisbon, Portugal
| | - Konstantin Romanyuk
- Department of Physics & CICECO-Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal
| | - José M G Martinho
- Centro de Química Estrutural, Institute of Molecular Sciences and Department of Chemical Engineering, Instituto Superior Técnico, University of Lisbon, 1049-001 Lisbon, Portugal
| | - Pavel Zelenovskii
- Department of Chemistry & CICECO-Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Alexander Tselev
- Department of Physics & CICECO-Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Luís Verissimo
- Department of Chemistry & CICECO-Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Wei-Xiong Zhang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Xiao-Ming Chen
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Andrei Kholkin
- Department of Physics & CICECO-Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal
| | - João Rocha
- Department of Chemistry & CICECO-Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal
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10
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Cao C, Xue S, Liu F, Wu Q, Wu J, Zhang Z, Guan C, Cong WY, Lu YB. Studies on the Light-Induced Phase Transition of CsPbBr 3 Metal Halide Perovskite Materials. ACS OMEGA 2023; 8:20096-20101. [PMID: 37305233 PMCID: PMC10249393 DOI: 10.1021/acsomega.3c02378] [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: 04/13/2023] [Accepted: 05/11/2023] [Indexed: 06/13/2023]
Abstract
We investigate the internal mechanism of the light-induced phase transition of CsPbBr3 perovskite materials via density functional theory simulations. Although CsPbBr3 tends to appear in the orthorhombic structure, it can be changed easily by external stimulus. We find that the transition of photogenerated carriers plays the decisive role in this process. When the photogenerated carriers transit from the valence band maximum to conduction band minimum in the reciprocal space, they actually transit from Br ions to Pb ions in the real space, which are taken away by the Br atoms with higher electronegativity from Pb atoms during the initial formation of the CsPbBr3 lattice. The reverse transition of valence electrons leads to the weakening of bond strength, which is proved by our calculated Bader charge, electron localization function, and integral value of COHP results. This charge transition releases the distortion of the Pb-Br octahedral framework and expands the CsPbBr3 lattice, providing possibilities to the phase transition from the orthorhombic structure to tetragonal structure. This phase transition is a self-accelerating positive feedback process, increasing the light absorption efficiency of the CsPbBr3 material, which is of great significance for the widespread promotion and application of the photostriction effect. Our results are helpful to understand the performance of CsPbBr3 perovskite under a light irradiation environment.
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Affiliation(s)
- Chenyu Cao
- School
of Space Science and Physics, Shandong University, Weihai 264209, China
| | - Shaoming Xue
- School
of Space Science and Physics, Shandong University, Weihai 264209, China
| | - Fangchao Liu
- School
of Space Science and Physics, Shandong University, Weihai 264209, China
| | - Qiaoqian Wu
- School
of Space Science and Physics, Shandong University, Weihai 264209, China
| | - Jialin Wu
- School
of Space Science and Physics, Shandong University, Weihai 264209, China
| | - Zhenkui Zhang
- School
of Science, Langfang Normal University, Langfang 065000, China
| | - ChengBo Guan
- School
of Space Science and Physics, Shandong University, Weihai 264209, China
| | - Wei-Yan Cong
- School
of Space Science and Physics, Shandong University, Weihai 264209, China
| | - Ying-Bo Lu
- School
of Space Science and Physics, Shandong University, Weihai 264209, China
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11
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Luo D, Zhang B, Sie EJ, Nyby CM, Fan Q, Shen X, Reid AH, Hoffmann MC, Weathersby S, Wen J, Qian X, Wang X, Lindenberg AM. Ultrafast Optomechanical Strain in Layered GeS. NANO LETTERS 2023; 23:2287-2294. [PMID: 36898060 DOI: 10.1021/acs.nanolett.2c05048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Strong coupling between light and mechanical strain forms the foundation for next-generation optical micro- and nano-electromechanical systems. Such optomechanical responses in two-dimensional materials present novel types of functionalities arising from the weak van der Waals bond between atomic layers. Here, by using structure-sensitive megaelectronvolt ultrafast electron diffraction, we report the experimental observation of optically driven ultrafast in-plane strain in the layered group IV monochalcogenide germanium sulfide (GeS). Surprisingly, the photoinduced structural deformation exhibits strain amplitudes of order 0.1% with a 10 ps fast response time and a significant in-plane anisotropy between zigzag and armchair crystallographic directions. Rather than arising due to heating, experimental and theoretical investigations suggest deformation potentials caused by electronic density redistribution and converse piezoelectric effects generated by photoinduced electric fields are the dominant contributors to the observed dynamic anisotropic strains. Our observations define new avenues for ultrafast optomechanical control and strain engineering within functional devices.
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Affiliation(s)
- Duan Luo
- Department of Materials Science and Engineering, Stanford University, Stanford, California 94305, United States
- SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
- Key Laboratory of Ultra-fast Photoelectric Diagnostics Technology, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China
- Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Baiyu Zhang
- Department of Materials Science and Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Edbert J Sie
- Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
- Geballe Laboratory for Advanced Materials, Stanford University, Stanford, California 94305, United States
| | - Clara M Nyby
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Qingyuan Fan
- Department of Materials Science and Engineering, Stanford University, Stanford, California 94305, United States
- Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Xiaozhe Shen
- SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Alexander H Reid
- SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Matthias C Hoffmann
- SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Stephen Weathersby
- SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Jianguo Wen
- Center for Nanoscale Materials, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Xiaofeng Qian
- Department of Materials Science and Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Xijie Wang
- SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Aaron M Lindenberg
- Department of Materials Science and Engineering, Stanford University, Stanford, California 94305, United States
- Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
- Stanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
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12
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Shi J, Zhao Z, Dai Y, He J, Li T, Liang E, Wang J, Ni G, Sheng C, Wu D, Zhou S, Chen L, Zhao H. Nonthermal Ultrafast Optical Control of Magnetization Dynamics by Linearly Polarized Light in Metallic Ferromagnet. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2205903. [PMID: 36596707 PMCID: PMC9951311 DOI: 10.1002/advs.202205903] [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: 10/11/2022] [Revised: 11/27/2022] [Indexed: 06/17/2023]
Abstract
Coherent optical control of the magnetization in ferromagnetic (FM) mediums using ultrafast nonthermal effect paves a promising avenue to improve the speed and repetition rate of the magnetization manipulation. Whereas previously, only heat-induced or helicity-dependent magnetization dynamics are demonstrated in metallic ferromagnets. Here, the linearly-polarized light control of magnetization is demonstrated in FM Co coupled with ferroelectric (FE) BiFeO3 by tuning the light polarization direction. It is revealed that in the Co/BiFeO3 heterostructure excited by femtosecond laser pulses, the magnetization precession amplitude follows a sinusoidal dependence on the laser polarization direction. This nonthermal control of coherent magnetization rotation is attributed to the optical rectification effect in the BiFeO3 layer, which yields a FE polarization depending on the light polarization, and the subsequent modulation of magnetic energy in Co by the electrostriction-induced strain. This work demonstrates an effective route to nonthermally manipulate the ultrafast magnetization dynamics in metallic ferromagnets.
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Affiliation(s)
- Jingyu Shi
- Key Laboratory of Micro & Nano Photonic Structures (MOE)and Shanghai Ultra‐precision Optical Manufacturing Engineering Research CenterDepartment of Optical Science and EngineeringFudan UniversityShanghai200433China
- Basic Experimental Teaching CenterShaanxi Normal UniversityXi'an710062China
| | - Zirui Zhao
- Key Laboratory of Micro & Nano Photonic Structures (MOE)and Shanghai Ultra‐precision Optical Manufacturing Engineering Research CenterDepartment of Optical Science and EngineeringFudan UniversityShanghai200433China
| | - Yu Dai
- School of Physics Science and EngineeringTongji UniversityShanghai200092China
| | - Jiang He
- Key Laboratory of Micro & Nano Photonic Structures (MOE)and Shanghai Ultra‐precision Optical Manufacturing Engineering Research CenterDepartment of Optical Science and EngineeringFudan UniversityShanghai200433China
| | - Tao Li
- Key Laboratory of Micro & Nano Photonic Structures (MOE)and Shanghai Ultra‐precision Optical Manufacturing Engineering Research CenterDepartment of Optical Science and EngineeringFudan UniversityShanghai200433China
| | - En Liang
- Key Laboratory of Micro & Nano Photonic Structures (MOE)and Shanghai Ultra‐precision Optical Manufacturing Engineering Research CenterDepartment of Optical Science and EngineeringFudan UniversityShanghai200433China
| | - Jun Wang
- Key Laboratory of Micro & Nano Photonic Structures (MOE)and Shanghai Ultra‐precision Optical Manufacturing Engineering Research CenterDepartment of Optical Science and EngineeringFudan UniversityShanghai200433China
| | - Gang Ni
- Key Laboratory of Micro & Nano Photonic Structures (MOE)and Shanghai Ultra‐precision Optical Manufacturing Engineering Research CenterDepartment of Optical Science and EngineeringFudan UniversityShanghai200433China
| | - Chuanxiang Sheng
- Key Laboratory of Micro & Nano Photonic Structures (MOE)and Shanghai Ultra‐precision Optical Manufacturing Engineering Research CenterDepartment of Optical Science and EngineeringFudan UniversityShanghai200433China
| | - Di Wu
- National Laboratory of Solid State MicrostructuresDepartment of PhysicsNanjing UniversityNanjing210093China
| | - Shiming Zhou
- School of Physics Science and EngineeringTongji UniversityShanghai200092China
| | - Liangyao Chen
- Key Laboratory of Micro & Nano Photonic Structures (MOE)and Shanghai Ultra‐precision Optical Manufacturing Engineering Research CenterDepartment of Optical Science and EngineeringFudan UniversityShanghai200433China
| | - Haibin Zhao
- Key Laboratory of Micro & Nano Photonic Structures (MOE)and Shanghai Ultra‐precision Optical Manufacturing Engineering Research CenterDepartment of Optical Science and EngineeringFudan UniversityShanghai200433China
- Shanghai Frontiers Science Research Base of Intelligent Optoelectronics and PerceptionInstitute of OptoelectronicsFudan UniversityShanghai200433China
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13
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Pal S, Mohan M, Priya KS, Murugavel P. Photoelectrocaloric effect in ferroelectric oxide. Sci Rep 2022; 12:6390. [PMID: 35430579 PMCID: PMC9013360 DOI: 10.1038/s41598-022-10331-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 04/04/2022] [Indexed: 11/27/2022] Open
Abstract
The enhanced electrocaloric (EC) effect in solid-state-based lead-free ferroelectric Ba0.875(Bi0.5Li0.5)0.125TiO3 system is investigated under light as an external stimulus. The sample exhibits an analogous value of maximum change in entropy at Curie temperature, extracted from the two different measurements process. Notably, the sample depicts maximum value of adiabatic change in temperature (ΔT) as 1.27 K and isothermal entropy change (ΔS) as 2.05 J/K kg along with the EC coefficient value of 0.426 K mm/kV, under dark conditions. In addition, the sample exhibits > 0.5 K adiabatic temperature change over a broad temperature range (~ 35 K). Remarkably, the EC parameters display ~ 27% enhancement upon 405 nm light illumination. The demonstrated photoelectrocaloric effect is found to be in accordance with theoretical formalism. The present work elucidates the light as an additional degree of freedom to widen the potential of solid-state-based technologies for advanced environment-friendly cooling devices.
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14
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Liew WH, Chen Y, Alexe M, Yao K. Fast Photostriction in Ferroelectrics. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2106275. [PMID: 35018720 DOI: 10.1002/smll.202106275] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 12/04/2021] [Indexed: 06/14/2023]
Abstract
Light-induced nonthermal strain, known as the photostrictive effect, offers a potential way to excite mechanical strain and acoustic wave remotely. The anisotropic photostrictive effect induced by the combination of bulk photovoltaic effect (BPVE) and converse piezoelectric effect in ferroelectric materials is known as too small and slow for the applications requiring a high strain rate, such as ultrasound generation and high-speed signal transmission. Here, a strategy to achieve high rate dynamic photostrictive strain by utilizing local fast responses under modulating continuous light excitation in the resonance condition is reported. A strain rate of 8.06 × 10-3 s-1 is demonstrated under continuous light excitation, which is at least one order of magnitude higher than previous studies on bulk samples as seen in the literature. The significant photostrictive response exists even in depoled ferroelectric material without overall polarization. The theoretical analyses show that fast ferroelectric photostriction can be obtained through the combinational interaction mechanism of local BPVE and local converse piezoelectric effect existing only in the microscopic scale, thus circumventing the slow and low efficient BPVE charging up process across the macroscopic electrical terminals. The achieved fast photostriction and new understandings will open new opportunities to realize future wireless signal transmission and light-acoustic devices.
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Affiliation(s)
- Weng Heng Liew
- Institute of Materials Research and Engineering (IMRE), A*STAR (Agency for Science, Technology and Research), Singapore, 138634, Singapore
| | - Yunjie Chen
- Institute of Materials Research and Engineering (IMRE), A*STAR (Agency for Science, Technology and Research), Singapore, 138634, Singapore
| | - Marin Alexe
- Department of Physics, University of Warwick, Coventry, CV4 7AL, UK
| | - Kui Yao
- Institute of Materials Research and Engineering (IMRE), A*STAR (Agency for Science, Technology and Research), Singapore, 138634, Singapore
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15
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Ramesh R. Materials for a Sustainable Microelectronics Future: Electric Field Control of Magnetism with Multiferroics. J Indian Inst Sci 2022; 102:489-511. [PMID: 35035127 PMCID: PMC8749116 DOI: 10.1007/s41745-021-00277-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 11/23/2021] [Indexed: 11/30/2022]
Abstract
This article is written on behalf of many colleagues, collaborators, and researchers in the field of complex oxides as well as current and former students and postdocs who continue to enable and undertake cutting-edge research in the field of multiferroics, magnetoelectrics, and the pursuit of electric-field control of magnetism. What I present is something that is extremely exciting from both a fundamental science and applications perspective and has the potential to revolutionize our world, particularly from a sustainability perspective. To realize this potential will require numerous new innovations, both in the fundamental science arena as well as translating these scientific discoveries into real applications. Thus, this article will attempt to bridge the gap between fundamental materials physics and the actual manifestations of the physical concepts into real-life applications. I hope this article will help spur more translational research within the broad materials community.
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Affiliation(s)
- R Ramesh
- Department of Physics and Department of Materials Science and Engineering, University of California, Berkeley, USA.,Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, USA
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16
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Rani K, Matzen S, Gable S, Maroutian T, Agnus G, Lecoeur P. Quantitative investigation of polarization-dependent photocurrent in ferroelectric thin films. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2021; 34:104003. [PMID: 34874288 DOI: 10.1088/1361-648x/ac3f67] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 12/02/2021] [Indexed: 06/13/2023]
Abstract
Ferroelectric thin films are investigated for their potential in photovoltaic (PV) applications, owing to their high open-circuit voltage and switchable photovoltaic effect. The direction of the ferroelectric polarization can control the sign of the photocurrent through the ferroelectric layer, theoretically allowing for 100% switchability of the photocurrent with the polarization, which is particularly interesting for photo-ferroelectric memories. However, the quantitative relationship between photocurrent and polarization remains little studied. In this work, a careful investigation of the polarization-dependent photocurrent of epitaxial Pb(Zr, Ti)O3thin films has been carried out, and has provided a quantitative determination of the unswitchable part of ferroelectric polarization. These results represent a systematic approach to study and optimize the switchability of photocurrent, and more broadly to get important insights on the ferroelectric behavior in all types of ferroelectric layers in which pinned polarization is difficult to investigate.
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Affiliation(s)
- Komalika Rani
- Université Paris-Saclay, CNRS, Centre de Nanosciences et de Nanotechnologies (C2N), 10 Boulevard Thomas Gobert, 91120 Palaiseau, France
| | - Sylvia Matzen
- Université Paris-Saclay, CNRS, Centre de Nanosciences et de Nanotechnologies (C2N), 10 Boulevard Thomas Gobert, 91120 Palaiseau, France
| | - Stéphane Gable
- Université Paris-Saclay, CNRS, Centre de Nanosciences et de Nanotechnologies (C2N), 10 Boulevard Thomas Gobert, 91120 Palaiseau, France
| | - Thomas Maroutian
- Université Paris-Saclay, CNRS, Centre de Nanosciences et de Nanotechnologies (C2N), 10 Boulevard Thomas Gobert, 91120 Palaiseau, France
| | - Guillaume Agnus
- Université Paris-Saclay, CNRS, Centre de Nanosciences et de Nanotechnologies (C2N), 10 Boulevard Thomas Gobert, 91120 Palaiseau, France
| | - Philippe Lecoeur
- Université Paris-Saclay, CNRS, Centre de Nanosciences et de Nanotechnologies (C2N), 10 Boulevard Thomas Gobert, 91120 Palaiseau, France
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17
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Frazer TD, Zhu Y, Cai Z, Walko DA, Adamo C, Schlom DG, Fullerton EE, Evans PG, Hruszkewycz SO, Cao Y, Wen H. Optical transient grating pumped X-ray diffraction microscopy for studying mesoscale structural dynamics. Sci Rep 2021; 11:19322. [PMID: 34588533 PMCID: PMC8481406 DOI: 10.1038/s41598-021-98741-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 09/14/2021] [Indexed: 11/30/2022] Open
Abstract
A fundamental understanding of materials’ structural dynamics, with fine spatial and temporal control, underpins future developments in electronic and quantum materials. Here, we introduce an optical transient grating pump and focused X-ray diffraction probe technique (TGXD) to examine the structural evolution of materials excited by modulated light with a precisely controlled spatial profile. This method adds spatial resolution and direct structural sensitivity to the established utility of a sinusoidal transient-grating excitation. We demonstrate TGXD using two thin-film samples: epitaxial BiFeO3, which exhibits a photoinduced strain (structural grating) with an amplitude proportional to the optical fluence, and FeRh, which undergoes a magnetostructural phase transformation. In BiFeO3, structural relaxation is location independent, and the strain persists on the order of microseconds, consistent with the optical excitation of long-lived charge carriers. The strain profile of the structural grating in FeRh, in comparison, deviates from the sinusoidal excitation and exhibits both higher-order spatial frequencies and a location-dependent relaxation. The focused X-ray probe provides spatial resolution within the engineered optical excitation profile, resolving the spatiotemporal flow of heat through FeRh locally heated above the phase transition temperature. TGXD successfully characterizes mesoscopic energy transport in functional materials without relying on a specific transport model.
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Affiliation(s)
- Travis D Frazer
- Materials Science Division, Argonne National Laboratory, Lemont, IL, 60439, USA
| | - Yi Zhu
- Advanced Photon Source, Argonne National Laboratory, Lemont, IL, 60439, USA
| | - Zhonghou Cai
- Advanced Photon Source, Argonne National Laboratory, Lemont, IL, 60439, USA
| | - Donald A Walko
- Advanced Photon Source, Argonne National Laboratory, Lemont, IL, 60439, USA
| | - Carolina Adamo
- Department of Materials Science and Engineering, Cornell University, Ithaca, NY, 14853, USA
| | - Darrell G Schlom
- Department of Materials Science and Engineering, Cornell University, Ithaca, NY, 14853, USA.,Kavli Institute at Cornell for Nanoscale Science, Ithaca, NY, 14853, USA.,Leibniz-Institut Für Kristallzüchtung, Max-Born-Str. 2, 12489, Berlin, Germany
| | - Eric E Fullerton
- Center for Memory and Recording Research, University of California San Diego, La Jolla, CA, 92903, USA
| | - Paul G Evans
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, WI, 53706, USA
| | | | - Yue Cao
- Materials Science Division, Argonne National Laboratory, Lemont, IL, 60439, USA.
| | - Haidan Wen
- Advanced Photon Source, Argonne National Laboratory, Lemont, IL, 60439, USA.
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18
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Oxide and Organic–Inorganic Halide Perovskites with Plasmonics for Optoelectronic and Energy Applications: A Contributive Review. Catalysts 2021. [DOI: 10.3390/catal11091057] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The ascension of halide perovskites as outstanding materials for a wide variety of optoelectronic applications has been reported in recent years. They have shown significant potential for the next generation of photovoltaics in particular, with a power conversion efficiency of 25.6% already achieved. On the other hand, oxide perovskites have a longer history and are considered as key elements in many technological applications; they have been examined in depth and applied in various fields, owing to their exceptional variability in terms of compositions and structures, leading to a large set of unique physical and chemical properties. As of today, a sound correlation between these two important material families is still missing, and this contributive review aims to fill this gap. We report a detailed analysis of the main functions and properties of oxide and organic–inorganic halide perovskite, emphasizing existing relationships amongst the specific performance and the structures.
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19
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Sarott MF, Gradauskaite E, Nordlander J, Strkalj N, Trassin M. In situmonitoring of epitaxial ferroelectric thin-film growth. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2021; 33:293001. [PMID: 33873174 DOI: 10.1088/1361-648x/abf979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Accepted: 04/19/2021] [Indexed: 06/12/2023]
Abstract
In ferroelectric thin films, the polarization state and the domain configuration define the macroscopic ferroelectric properties such as the switching dynamics. Engineering of the ferroelectric domain configuration during synthesis is in permanent evolution and can be achieved by a range of approaches, extending from epitaxial strain tuning over electrostatic environment control to the influence of interface atomic termination. Exotic polar states are now designed in the technologically relevant ultrathin regime. The promise of energy-efficient devices based on ultrathin ferroelectric films depends on the ability to create, probe, and manipulate polar states in ever more complex epitaxial architectures. Because most ferroelectric oxides exhibit ferroelectricity during the epitaxial deposition process, the direct access to the polarization emergence and its evolution during the growth process, beyond the realm of existing structuralin situdiagnostic tools, is becoming of paramount importance. We review the recent progress in the field of monitoring polar states with an emphasis on the non-invasive probes allowing investigations of polarization during the thin film growth of ferroelectric oxides. A particular importance is given to optical second harmonic generationin situ. The ability to determine the net polarization and domain configuration of ultrathin films and multilayers during the growth of multilayers brings new insights towards a better understanding of the physics of ultrathin ferroelectrics and further control of ferroelectric-based heterostructures for devices.
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Affiliation(s)
- Martin F Sarott
- Department of Materials, ETH Zurich, Vladimir-Prelog-Weg 4, 8093 Zurich, Switzerland
| | - Elzbieta Gradauskaite
- Department of Materials, ETH Zurich, Vladimir-Prelog-Weg 4, 8093 Zurich, Switzerland
| | - Johanna Nordlander
- Department of Materials, ETH Zurich, Vladimir-Prelog-Weg 4, 8093 Zurich, Switzerland
| | - Nives Strkalj
- Department of Materials, ETH Zurich, Vladimir-Prelog-Weg 4, 8093 Zurich, Switzerland
| | - Morgan Trassin
- Department of Materials, ETH Zurich, Vladimir-Prelog-Weg 4, 8093 Zurich, Switzerland
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20
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Rampal A, Kleiman RN. Optical actuation of a micromechanical photodiode via the photovoltaic-piezoelectric effect. MICROSYSTEMS & NANOENGINEERING 2021; 7:29. [PMID: 34567743 PMCID: PMC8433330 DOI: 10.1038/s41378-021-00249-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 01/21/2021] [Accepted: 01/22/2021] [Indexed: 06/01/2023]
Abstract
Radiation pressure and photothermal forces have been previously used to optically actuate micro/nanomechanical structures fabricated from semiconductor piezoelectric materials such as gallium arsenide (GaAs). In these materials, coupling of the photovoltaic and piezoelectric properties has not been fully explored and leads to a new type of optical actuation that we call the photovoltaic-piezoelectric effect (PVPZ). We demonstrate this effect by electrically measuring, via the direct piezoelectric effect, the optically induced strain in a novel torsional resonator. The micron-scale torsional resonator is fabricated from a lattice-matched single-crystal molecular beam epitaxy (MBE)-grown GaAs photodiode heterostructure. We find that the strain depends on the product of the electro-optic responsivity and piezoelectric constant of GaAs. The photovoltaic-piezoelectric effect has important potential applications, such as in the development of configurable optical circuits, which can be used in neuromorphic photonic chips, processing of big data with deep learning and the development of quantum circuits.
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Affiliation(s)
- A. Rampal
- Department of Engineering Physics, McMaster University, Hamilton, ON L8S 4L7 Canada
- Present Address: CircuitMind Inc, 185 Spadina Avenue, Toronto, ON M5T 2C6 Canada
| | - R. N. Kleiman
- Department of Engineering Physics, McMaster University, Hamilton, ON L8S 4L7 Canada
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21
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Influence of BaO Doping on the Structural, Ac Conductivity, and Dielectric Properties of BiFeO3 Multiferroic Nanoparticles. J Inorg Organomet Polym Mater 2021. [DOI: 10.1007/s10904-021-01979-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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22
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Long X, Tan H, Sánchez F, Fina I, Fontcuberta J. Non-volatile optical switch of resistance in photoferroelectric tunnel junctions. Nat Commun 2021; 12:382. [PMID: 33452259 PMCID: PMC7810721 DOI: 10.1038/s41467-020-20660-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 12/14/2020] [Indexed: 01/29/2023] Open
Abstract
In the quest for energy efficient and fast memory elements, optically controlled ferroelectric memories are promising candidates. Here, we show that, by taking advantage of the imprint electric field existing in the nanometric BaTiO3 films and their photovoltaic response at visible light, the polarization of suitably written domains can be reversed under illumination. We exploit this effect to trigger and measure the associate change of resistance in tunnel devices. We show that engineering the device structure by inserting an auxiliary dielectric layer, the electroresistance increases by a factor near 2 × 103%, and a robust electric and optic cycling of the device can be obtained mimicking the operation of a memory device under dual control of light and electric fields.
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Affiliation(s)
- Xiao Long
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB, 08193, Bellaterra, Catalonia, Spain
| | - Huan Tan
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB, 08193, Bellaterra, Catalonia, Spain
| | - Florencio Sánchez
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB, 08193, Bellaterra, Catalonia, Spain
| | - Ignasi Fina
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB, 08193, Bellaterra, Catalonia, Spain.
| | - Josep Fontcuberta
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB, 08193, Bellaterra, Catalonia, Spain.
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23
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Gradauskaite E, Meisenheimer P, Müller M, Heron J, Trassin M. Multiferroic heterostructures for spintronics. PHYSICAL SCIENCES REVIEWS 2020. [DOI: 10.1515/psr-2019-0072] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
AbstractFor next-generation technology, magnetic systems are of interest due to the natural ability to store information and, through spin transport, propagate this information for logic functions. Controlling the magnetization state through currents has proven energy inefficient. Multiferroic thin-film heterostructures, combining ferroelectric and ferromagnetic orders, hold promise for energy efficient electronics. The electric field control of magnetic order is expected to reduce energy dissipation by 2–3 orders of magnitude relative to the current state-of-the-art. The coupling between electrical and magnetic orders in multiferroic and magnetoelectric thin-film heterostructures relies on interfacial coupling though magnetic exchange or mechanical strain and the correlation between domains in adjacent functional ferroic layers. We review the recent developments in electrical control of magnetism through artificial magnetoelectric heterostructures, domain imprint, emergent physics and device paradigms for magnetoelectric logic, neuromorphic devices, and hybrid magnetoelectric/spin-current-based applications. Finally, we conclude with a discussion of experiments that probe the crucial dynamics of the magnetoelectric switching and optical tuning of ferroelectric states towards all-optical control of magnetoelectric switching events.
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Affiliation(s)
- Elzbieta Gradauskaite
- Department of Materials , ETH Zurich , Vladimir-Prelog-Weg 4 , Zurich , 8093 Switzerland
| | - Peter Meisenheimer
- Department of Materials Science and Engineering , University of Michigan , Ann Arbor , MI 48109 USA
| | - Marvin Müller
- Department of Materials , ETH Zurich , Vladimir-Prelog-Weg 4 , Zurich , 8093 Switzerland
| | - John Heron
- Department of Materials Science and Engineering , University of Michigan , Ann Arbor , MI 48109 USA
| | - Morgan Trassin
- Department of Materials , ETH Zurich , Vladimir-Prelog-Weg 4 , Zurich , 8093 Switzerland
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24
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Advanced micromorphology study of the Mn-doped bismuth ferrite thin films. MATERIALS LETTERS 2020. [DOI: 10.1016/j.matlet.2020.128615] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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25
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Nakashima S, Higuchi T, Yasui A, Kinoshita T, Shimizu M, Fujisawa H. Enhancement of photovoltage by electronic structure evolution in multiferroic Mn-doped BiFeO 3 thin films. Sci Rep 2020; 10:15108. [PMID: 32958815 PMCID: PMC7505956 DOI: 10.1038/s41598-020-71928-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 08/24/2020] [Indexed: 11/08/2022] Open
Abstract
The bulk photovoltaic effect (BPVE) is a mechanism of recent focus for novel solar cells that exceed the power conversion efficiency of p-n junction solar cells because of the quantum mechanical effect to generate photocurrent known as shift current. Ferroelectrics are receiving attention again because of their high voltage generation by the BPVE and converse piezoelectric effect to realize high performance optical actuators. We have investigated the BPVE in ferroelectric BiFeO3 (BFO) single crystal thin films, whereby the photovoltage was enhanced by Mn doping, and 852 V generation was demonstrated at 80 K. The enhancement mechanism was also investigated using soft and hard X-ray photoelectron spectroscopy (SXPES, HAXPES), and soft X-ray absorption spectroscopy with synchrotron radiation. This report reveals a way to new voltage source applications employing the BPVE for high impedance devices with ferroelectrics. Important aspects for designing ferroelectric materials by impurity doping are also discussed.
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Affiliation(s)
- Seiji Nakashima
- Department of Electronics and Computer Science, Graduate School of Engineering, University of Hyogo, Himeji, Hyogo, 671-2201, Japan.
| | - Tohru Higuchi
- Department of Applied Physics, Tokyo University of Science, Katsushika, Tokyo, 125-8585, Japan
| | - Akira Yasui
- Japan Synchrotron Radiation Research Institute / SPring-8, Sayo, Hyogo, 679-5198, Japan
| | - Toyohiko Kinoshita
- Japan Synchrotron Radiation Research Institute / SPring-8, Sayo, Hyogo, 679-5198, Japan
| | - Masaru Shimizu
- Department of Electronics and Computer Science, Graduate School of Engineering, University of Hyogo, Himeji, Hyogo, 671-2201, Japan
| | - Hironori Fujisawa
- Department of Electronics and Computer Science, Graduate School of Engineering, University of Hyogo, Himeji, Hyogo, 671-2201, Japan
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26
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Xu WJ, Romanyuk K, Martinho JMG, Zeng Y, Zhang XW, Ushakov A, Shur V, Zhang WX, Chen XM, Kholkin A, Rocha J. Photoresponsive Organic–Inorganic Hybrid Ferroelectric Designed at the Molecular Level. J Am Chem Soc 2020; 142:16990-16998. [DOI: 10.1021/jacs.0c06048] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Wei-Jian Xu
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
- Department of Physics and CICECO-Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal
- Department of Chemistry and CICECO-Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Konstantin Romanyuk
- Department of Physics and CICECO-Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal
- School of Natural Sciences and Mathematics, Ural Federal University, 620000 Ekaterinburg, Russia
| | - José M. G. Martinho
- CQE-Centro de Quı́mica Estrutural, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal
| | - Ying Zeng
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Xue-Wen Zhang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Andrei Ushakov
- School of Natural Sciences and Mathematics, Ural Federal University, 620000 Ekaterinburg, Russia
| | - Vladimir Shur
- School of Natural Sciences and Mathematics, Ural Federal University, 620000 Ekaterinburg, Russia
| | - Wei-Xiong Zhang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Xiao-Ming Chen
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Andrei Kholkin
- Department of Physics and CICECO-Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal
| | - João Rocha
- Department of Chemistry and CICECO-Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal
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27
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Pal S, Swain AB, Biswas PP, Murugavel P. Linear bulk photovoltaic effect and phenomenological study in multi-phase co-existing ferroelectric system. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2020; 32:485701. [PMID: 32750682 DOI: 10.1088/1361-648x/abac23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 08/04/2020] [Indexed: 06/11/2023]
Abstract
Ferroelectric systems with multi-phase co-existence are found to exhibit anomalous photovoltaic response. In this work, detailed photovoltaic studies are carried out under 405 nm light illumination on Ba1-x(Bi0.5Li0.5)xTiO3ferroelectric oxides having the co-existence of tetragonal and orthorhombic phases. The linear and sinusoidal photocurrent-dependence as a function of light intensity and polarization-direction, respectively elucidate the experimental evidence for linear bulk-photovoltaic effect. Importantly, the temperature-dependent photovoltaic studies display 2-fold enhancement in photovoltage near the ferroelectric transition temperature (TC). The observed features in photovoltage follow inverse temperature-dependence of the photoconductivity. The linear relationship between the calculated bulk-photovoltaic tensor component and the photocurrent established from the proposed phenomenological model is verified through their composition-dependent studies. These studies provide the desired design parameters to engineer the ferroelectric system for better photovoltaic characteristics suitable for device applications.
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Affiliation(s)
- Subhajit Pal
- Department of Physics, Indian Institute of Technology Madras, Chennai 600036, India
| | - Atal Bihari Swain
- Department of Physics, Indian Institute of Technology Madras, Chennai 600036, India
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28
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Yin L, Mi W. Progress in BiFeO 3-based heterostructures: materials, properties and applications. NANOSCALE 2020; 12:477-523. [PMID: 31850428 DOI: 10.1039/c9nr08800h] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
BiFeO3-based heterostructures have attracted much attention for potential applications due to their room-temperature multiferroic properties, proper band gaps and ultrahigh ferroelectric polarization of BiFeO3, such as data storage, optical utilization in visible light regions and synapse-like function. Here, this work aims to offer a systematic review on the progress of BiFeO3-based heterostructures. In the first part, the optical, electric, magnetic, and valley properties and their interactions in BiFeO3-based heterostructures are briefly reviewed. In the second part, the morphologies of BiFeO3 and medium materials in the heterostructures are discussed. Particularly, in the third part, the physical properties and underlying mechanism in BiFeO3-based heterostructures are discussed thoroughly, such as the photovoltaic effect, electric field control of magnetism, resistance switching, and two-dimensional electron gas and valley characteristics. The fourth part illustrates the applications of BiFeO3-based heterostructures based on the materials and physical properties discussed in the second and third parts. This review also includes a future prospect, which can provide guidance for exploring novel physical properties and designing multifunctional devices.
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Affiliation(s)
- Li Yin
- Tianjin Key Laboratory of Low Dimensional Materials Physics and Preparation Technology, School of Science, Tianjin University, Tianjin 300354, China.
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29
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Spaldin NA. Multiferroics beyond electric-field control of magnetism. Proc Math Phys Eng Sci 2020; 476:20190542. [PMID: 32082059 PMCID: PMC7016559 DOI: 10.1098/rspa.2019.0542] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Accepted: 12/02/2019] [Indexed: 12/23/2022] Open
Abstract
Multiferroic materials, with their combined and coupled magnetism and ferroelectricity, provide a playground for studying new physics and chemistry as well as a platform for the development of novel devices and technologies. Based on my July 2017 Royal Society Inaugural Lecture, I review recent progress and propose future directions in the fundamentals and applications of multiferroics, with a focus on initially unanticipated developments outside of the core activity of electric-field control of magnetism.
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30
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Paillard C, Torun E, Wirtz L, Íñiguez J, Bellaiche L. Photoinduced Phase Transitions in Ferroelectrics. PHYSICAL REVIEW LETTERS 2019; 123:087601. [PMID: 31491223 DOI: 10.1103/physrevlett.123.087601] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2018] [Revised: 04/10/2019] [Indexed: 06/10/2023]
Abstract
Ferroic materials naturally exhibit a rich number of functionalities, which often arise from thermally, chemically, or mechanically induced symmetry breakings or phase transitions. Based on density functional calculations, we demonstrate here that light can drive phase transitions as well in ferroelectric materials such as the perovskite oxides lead titanate and barium titanate. Phonon analysis and total energy calculations reveal that the polarization tends to vanish under illumination, to favor the emergence of nonpolar phases, potentially antiferroelectric, and exhibiting a tilt of the oxygen octahedra. Strategies to tailor photoinduced phases based on phonon instabilities in the electronic ground state are also discussed.
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Affiliation(s)
- Charles Paillard
- Department of Physics and Institute for Nanoscience and Engineering, University of Arkansas, Fayetteville, Arkansas 72701, USA
- Laboratoire Structures, Propriétés et Modélisation des Solides, CentraleSupélec, UMR CNRS 8580, Université Paris-Saclay, 91190 Gif-sur-Yvette, France
| | - Engin Torun
- Physics and Materials Science Research Unit, University of Luxembourg, 162a avenue de la Faïencerie, L-1511 Luxembourg, Luxembourg
| | - Ludger Wirtz
- Physics and Materials Science Research Unit, University of Luxembourg, 162a avenue de la Faïencerie, L-1511 Luxembourg, Luxembourg
| | - Jorge Íñiguez
- Physics and Materials Science Research Unit, University of Luxembourg, 162a avenue de la Faïencerie, L-1511 Luxembourg, Luxembourg
- Materials Research and Technology Department, Luxembourg Institute of Science and Technology (LIST), Avenue des Hauts-Fourneaux 5, L-4362 Esch/Alzette, Luxembourg
| | - Laurent Bellaiche
- Department of Physics and Institute for Nanoscience and Engineering, University of Arkansas, Fayetteville, Arkansas 72701, USA
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31
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Ahn Y, Pateras A, Marks SD, Xu H, Zhou T, Luo Z, Chen Z, Chen L, Zhang X, DiChiara AD, Wen H, Evans PG. Nanosecond Optically Induced Phase Transformation in Compressively Strained BiFeO_{3} on LaAlO_{3}. PHYSICAL REVIEW LETTERS 2019; 123:045703. [PMID: 31491252 DOI: 10.1103/physrevlett.123.045703] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Revised: 05/08/2019] [Indexed: 06/10/2023]
Abstract
Above-band-gap optical illumination of compressively strained BiFeO_{3} induces a transient reversible transformation from a state of coexisting tilted tetragonal-like and rhombohedral-like phases to an untilted tetragonal-like phase. Time-resolved synchrotron x-ray diffraction reveals that the transformation is induced by an ultrafast optically induced lattice expansion that shifts the relative free energies of the tetragonal-like and rhombohedral-like phases. The transformation proceeds at interfaces between regions of the tetragonal-like phase and regions of a mixture of tilted phases, consistent with the motion of a phase boundary. The optically induced transformation demonstrates that there are new optically driven routes towards nanosecond-scale control of phase transformations in ferroelectrics and multiferroics.
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Affiliation(s)
- Youngjun Ahn
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - Anastasios Pateras
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - Samuel D Marks
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - Han Xu
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Tao Zhou
- ID01/ESRF, 71 Avenue des Martyrs, 38000 Grenoble Cedex, France
| | - Zhenlin Luo
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Zuhuang Chen
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, China
| | - Lang Chen
- Department of Physics, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Xiaoyi Zhang
- Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - Anthony D DiChiara
- Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - Haidan Wen
- Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - Paul G Evans
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
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32
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Liou YD, Chiu YY, Hart RT, Kuo CY, Huang YL, Wu YC, Chopdekar RV, Liu HJ, Tanaka A, Chen CT, Chang CF, Tjeng LH, Cao Y, Nagarajan V, Chu YH, Chen YC, Yang JC. Deterministic optical control of room temperature multiferroicity in BiFeO 3 thin films. NATURE MATERIALS 2019; 18:580-587. [PMID: 31061484 DOI: 10.1038/s41563-019-0348-x] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Accepted: 03/15/2019] [Indexed: 05/12/2023]
Abstract
Controlling ferroic orders (ferroelectricity, ferromagnetism and ferroelasticity) by optical methods is a significant challenge due to the large mismatch in energy scales between the order parameter coupling strengths and the incident photons. Here, we demonstrate an approach to manipulate multiple ferroic orders in an epitaxial mixed-phase BiFeO3 thin film at ambient temperature via laser illumination. Phase-field simulations indicate that a light-driven flexoelectric effect allows the targeted formation of ordered domains. We also achieved precise sequential laser writing and erasure of different domain patterns, which demonstrates a deterministic optical control of multiferroicity at room temperature. As ferroic orders directly influence susceptibility and conductivity in complex materials, our results not only shed light on the optical control of multiple functionalities, but also suggest possible developments for optoelectronics and related applications.
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Affiliation(s)
- Yi-De Liou
- Department of Physics, National Cheng Kung University, Tainan, Taiwan
| | - Yu-You Chiu
- Department of Physics, National Cheng Kung University, Tainan, Taiwan
| | - Ryan Thomas Hart
- Department of Materials Science and Engineering, University of Texas at Arlington, Arlington, TX, USA
| | - Chang-Yang Kuo
- Max-Planck Institute for Chemical Physics of Solids, Dresden, Germany
- National Synchrotron Radiation Research Center, Hsinchu, Taiwan
| | - Yen-Lin Huang
- Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu, Taiwan
| | - Yuan-Chih Wu
- Department of Physics, National Cheng Kung University, Tainan, Taiwan
| | - Rajesh V Chopdekar
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Heng-Jui Liu
- Department of Materials Science and Engineering, National Chung Hsing University, Taichung, Taiwan
| | - Arata Tanaka
- Department of Quantum Matter, ADSM, Hiroshima University, Higashi-Hiroshima, Japan
| | - Chien-Te Chen
- National Synchrotron Radiation Research Center, Hsinchu, Taiwan
| | - Chun-Fu Chang
- Max-Planck Institute for Chemical Physics of Solids, Dresden, Germany
| | - Liu Hao Tjeng
- Max-Planck Institute for Chemical Physics of Solids, Dresden, Germany
| | - Ye Cao
- Department of Materials Science and Engineering, University of Texas at Arlington, Arlington, TX, USA
| | - Valanoor Nagarajan
- School of Materials Science and Engineering, University of New South Wales, Sydney, New South Wales, Australia
| | - Ying-Hao Chu
- Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu, Taiwan
- Center for Emergent Functional Matter Science, National Chiao Tung University, Hsinchu, Taiwan
- Institute of Physics, Academia Sinica, Taipei, Taiwan
| | - Yi-Chun Chen
- Department of Physics, National Cheng Kung University, Tainan, Taiwan.
- Center for Quantum Frontiers of Research & Technology (QFort), National Cheng Kung University, Tainan, Taiwan.
| | - Jan-Chi Yang
- Department of Physics, National Cheng Kung University, Tainan, Taiwan.
- Center for Quantum Frontiers of Research & Technology (QFort), National Cheng Kung University, Tainan, Taiwan.
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33
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Spaldin NA, Ramesh R. Advances in magnetoelectric multiferroics. NATURE MATERIALS 2019; 18:203-212. [PMID: 30783227 DOI: 10.1038/s41563-018-0275-2] [Citation(s) in RCA: 301] [Impact Index Per Article: 60.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 12/17/2018] [Indexed: 05/05/2023]
Abstract
The manipulation of magnetic properties by an electric field in magnetoelectric multiferroic materials has driven significant research activity, with the goal of realizing their transformative technological potential. Here, we review progress in the fundamental understanding and design of new multiferroic materials, advances in characterization and modelling tools to describe them, and the exploration of devices and applications. Focusing on the translation of the many scientific breakthroughs into technological innovations, we identify the key open questions in the field where targeted research activities could have maximum impact in transitioning scientific discoveries into real applications.
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Affiliation(s)
- N A Spaldin
- Materials Theory, ETH Zurich, Zürich, Switzerland.
| | - R Ramesh
- Department of Materials Science and Engineering, UC Berkeley, Berkeley, CA, USA
- Department of Physics, UC Berkeley, Berkeley, CA, USA
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
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34
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Zhang Y, Gong Y, Li B, Ma RM, Che Y, Zhao J. Light-Driven Continuous Twist Movements of Microribbons. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1804102. [PMID: 30645007 DOI: 10.1002/smll.201804102] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Revised: 01/03/2019] [Indexed: 06/09/2023]
Abstract
Despite many advances in the development of artificial systems with helical twist motions or deformations, obtaining materials that can undergo continuous twist movements upon an energy input remains a great challenge. In this work, a continuous twist movement of microribbons driven by scanning laser irradiation, a process that a twist generates initially at one end of the microribbon and is continuously transmitted to the other end and then kept twisting, is reported. Key factors to the achievement of this movement are the fabrication of elastic microribbons that possess relatively low elastic modulus and diagonal photoinduced π-stacking distortion relative to the microribbon long axis. Furthermore, the scanning laser irradiation is required to drive the π-stacking distortion with the spatiotemporal coordination for the continuous twist movement of microribbons. These findings may be extended to the achievement of other sophisticated continuous movements of microscale systems.
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Affiliation(s)
- Yifan Zhang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
- School of Chemistry, University of Bristol, Bristol, BS8 1TS, UK
| | - Yanjun Gong
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Bo Li
- State Key Lab for Mesoscopic Physics and School of Physics, Peking University, Beijing, 100871, China
- Collaborative Innovation Center of Quantum Matter, Beijing, 100871, China
| | - Ren-Min Ma
- State Key Lab for Mesoscopic Physics and School of Physics, Peking University, Beijing, 100871, China
- Collaborative Innovation Center of Quantum Matter, Beijing, 100871, China
| | - Yanke Che
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jincai Zhao
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
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35
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Umar M, Mahmood N, Awan SU, Fatima S, Mahmood A, Rizwan S. Rationally designed La and Se co-doped bismuth ferrites with controlled bandgap for visible light photocatalysis. RSC Adv 2019; 9:17148-17156. [PMID: 35519847 PMCID: PMC9064475 DOI: 10.1039/c9ra03064f] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Accepted: 05/08/2019] [Indexed: 11/21/2022] Open
Abstract
Development of efficient visible light photocatalysts for water purification and hydrogen production by water splitting has been quite challenging. The activities of visible light photocatalysts are generally controlled by the extent of absorption of incident light, band gap, exposure of catalyst surface to incident light and adsorbing species. Here, we have synthesized nanostructured, La and Se co-doped bismuth ferrite (BLFSO) nanosheets using double solvent sol–gel and co-precipitation methods. Structural analysis revealed that the La and Se co-doped BFO i.e. Bi0.92La0.08Fe1−xSexO3 (BLFSO) transformed from perovskite rhombohedral to orthorhombic phase. As a result of co-doping and phase transition, a significant decrease in the band gap from 2.04 eV to 1.76 eV was observed for BLFSO-50% (having Se doping of 50%) which requires less energy during transfer of electrons from the valence to the conduction band and ultimately enhances the photocatalytic activity. Moreover, upon increase in Se doping, the BLFSO morphology gradually changed from particles to nanosheets. Among various products, BLFSO-50% exhibited the highest photocatalytic activities under visible light owing to homogenous phase distribution, regular sheet type morphology and larger contact with dye containing solutions. In summary, La, Se co-doping is an effective approach to tune the electronic structure of photocatalysts for visible light photocatalysis. Development of efficient visible light photocatalysts for water purification and hydrogen production by water splitting has been quite challenging.![]()
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Affiliation(s)
- M. Umar
- Physics Characterization and Simulations Lab (PCSL)
- School of Natural Sciences (SNS)
- National University of Science and Technology (NUST)
- Islamabad 44000
- Pakistan
| | - Nasir Mahmood
- School of Electrical and Computer Engineering
- RMIT University
- 3001 Melbourne
- Australia
| | - Saif Ullah Awan
- Department of Electrical Engineering
- NUST College of Electrical and Mechanical Engineering
- National University of Sciences and Technology (NUST)
- Islamabad 44000
- Pakistan
| | - Sabeen Fatima
- Physics Characterization and Simulations Lab (PCSL)
- School of Natural Sciences (SNS)
- National University of Science and Technology (NUST)
- Islamabad 44000
- Pakistan
| | - Asif Mahmood
- School of Chemical and Biomolecular Engineering
- The University of Sydney
- Sydney
- Australia
| | - Syed Rizwan
- Physics Characterization and Simulations Lab (PCSL)
- School of Natural Sciences (SNS)
- National University of Science and Technology (NUST)
- Islamabad 44000
- Pakistan
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36
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Zhou J, Xu H, Li Y, Jaramillo R, Li J. Opto-Mechanics Driven Fast Martensitic Transition in Two-Dimensional Materials. NANO LETTERS 2018; 18:7794-7800. [PMID: 30398884 DOI: 10.1021/acs.nanolett.8b03559] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Diffusional phase-change materials, such as Ge-Sb-Te alloys, are used in rewritable nonvolatile memory devices. But the continuous pursuit of readout/write speed and reduced energy consumption in miniaturized devices calls for an optically driven, diffusionless phase change scheme in ultrathin materials. Inspired by optical tweezers, in this work, we illustrate theoretically and computationally that a linearly polarized laser pulse with selected frequency can drive an ultrafast diffusionless martensitic phase transition of two-dimensional ferroelastic materials such as SnO and SnSe monolayers, where the unit-cell strain is tweezed as a generalized coordinate that affects the anisotropic dielectric function and electromagnetic energy density. At laser power of 2.0 × 1010 and 7.7 × 109 W/cm2, the transition potential energy barrier vanishes between two 90°-orientation variants of ferroelastic SnO and SnSe monolayer, respectively, so displacive domain switching can occur within picoseconds. The estimated adiabatic thermal limit of energy input in such optomechanical martensitic transition (OMT) is at least 2 orders of magnitude lower than that in Ge-Sb-Te alloy.
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Affiliation(s)
- Jian Zhou
- Department of Nuclear Science and Engineering , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States
- Center for Advancing Materials Performance from the Nanoscale, State Key Laboratory for Mechanical Behavior of Materials , Xi'an Jiaotong University , Xi'an 710049 , China
| | - Haowei Xu
- Department of Nuclear Science and Engineering , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States
| | - Yifei Li
- Department of Materials Science and Engineering , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States
| | - R Jaramillo
- Department of Materials Science and Engineering , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States
| | - Ju Li
- Department of Nuclear Science and Engineering , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States
- Department of Materials Science and Engineering , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States
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Yang JC, Liou YD, Tzeng WY, Liu HJ, Chang YW, Xiang PH, Zhang Z, Duan CG, Luo CW, Chen YC, Chu YH. Ultrafast Giant Photostriction of Epitaxial Strontium Iridate Film with Superior Endurance. NANO LETTERS 2018; 18:7742-7748. [PMID: 30407834 DOI: 10.1021/acs.nanolett.8b03435] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Photostriction, optical stimulus driven mechanical deformation in materials, provides a solution toward next-generation technology. Here, the giant photostriction (∼2% change of lattice) of epitaxial strontium iridate (SrIrO3) films under illumination at room temperature is revealed via power-dependent Raman scattering, which is significantly larger as compared to conventional inorganic materials. The time scale and mechanism of this giant photostriction in SrIrO3 are further studied through time-resolved transient reflectivity measurements. The main mechanism is determined to be the electron-phonon coupling. In addition, we find that such an exotic behavior happens within few picoseconds and remains up to 107 cyclic on/off operations. The observation of giant photostriction in SrIrO3 films with superior endurance promises the advance of shape responsive solids that are sensitive to environmental stimuli, which could be widely utilized for multifunctional optoelectronics and optomechanical devices.
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Affiliation(s)
- Jan-Chi Yang
- Department of Physics , National Cheng Kung University , Tainan , 701 , Taiwan
| | - Yi-De Liou
- Department of Physics , National Cheng Kung University , Tainan , 701 , Taiwan
| | - Wen-Yen Tzeng
- Department of Electrophysics , National Chiao Tung University , Hsinchu , 300 , Taiwan
| | - Heng-Jui Liu
- Department of Materials Science and Engineering , National Chung Hsing University , Taichung , 402 , Taiwan
| | - Yao-Wen Chang
- Department of Physics , National Cheng Kung University , Tainan , 701 , Taiwan
| | - Ping-Hua Xiang
- Key Laboratory of Polar Materials and Devices, Ministry of Education, Department of Electronic Engineering , East China Normal University , Shanghai 200241 , China
| | - Zaoli Zhang
- Erich Schmid Institute of Materials Science , Austrian Academy of Science , Leoben , 8700 , Austria
| | - Chun-Gang Duan
- Key Laboratory of Polar Materials and Devices, Ministry of Education, Department of Electronic Engineering , East China Normal University , Shanghai 200241 , China
| | - Chih-Wei Luo
- Department of Electrophysics , National Chiao Tung University , Hsinchu , 300 , Taiwan
| | - Yi-Chun Chen
- Department of Physics , National Cheng Kung University , Tainan , 701 , Taiwan
| | - Ying-Hao Chu
- Department of Electrophysics , National Chiao Tung University , Hsinchu , 300 , Taiwan
- Department of Materials Science and Engineering , National Chiao Tung University , Hsinchu , 300 , Taiwan
- Center for Emergent Functional Matter Science , National Chiao Tung University , Hsinchu 30010 , Taiwan
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38
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Magott M, Reczyński M, Gaweł B, Sieklucka B, Pinkowicz D. A Photomagnetic Sponge: High-Temperature Light-Induced Ferrimagnet Controlled by Water Sorption. J Am Chem Soc 2018; 140:15876-15882. [PMID: 30376320 DOI: 10.1021/jacs.8b09322] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
"Converting" light energy to magnetization is the attribute of molecule-based compounds called photomagnets and is inaccessible for conventional magnetic solids. The design and synthesis of such compounds, however, is a formidable challenge, and only a few examples are known, all with rather low magnetic ordering temperatures well below the boiling point of liquid nitrogen. Herein, a cyanide-bridged coordination polymer, {[MnII(imidazole)]2[WIV(CN)8]} n, exhibiting the highest light-induced magnetic ordering temperature ever observed and a magnetic hysteresis loop up to 90 K is reported. The photomagnetic effect results from the blue light excitation (450 nm) of the constituent octacyanotungstate(IV) moiety, which then couples magnetically with manganese(II), resulting in light-induced ferrimagnetic ordering. The reported coordination framework shows also outstanding water sorption properties that are strongly correlated with the photomagnetic functionality. The photoswitching observed in the anhydrous state is completely quenched by the reversible capture of water, with the fully hydrated phase becoming practically non-photomagnetic.
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Affiliation(s)
- Michał Magott
- Faculty of Chemistry , Jagiellonian University , Gronostajowa 2 , 30-387 Kraków , Poland
| | - Mateusz Reczyński
- Faculty of Chemistry , Jagiellonian University , Gronostajowa 2 , 30-387 Kraków , Poland
| | - Bartłomiej Gaweł
- Department of Materials Science and Engineering , Norwegian University of Science and Technology (NTNU) , 7491 Trondheim , Norway
| | - Barbara Sieklucka
- Faculty of Chemistry , Jagiellonian University , Gronostajowa 2 , 30-387 Kraków , Poland
| | - Dawid Pinkowicz
- Faculty of Chemistry , Jagiellonian University , Gronostajowa 2 , 30-387 Kraków , Poland
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39
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Bhatnagar A. Ferroelectric Photovoltaics. FERROELECTRIC MATERIALS FOR ENERGY APPLICATIONS 2018:61-94. [DOI: 10.1002/9783527807505.ch3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/27/2023]
Affiliation(s)
- Akash Bhatnagar
- Centre for Innovation Competence ZIK SiLi-nano®; Light for High-voltage Photovoltaics; Karl-Freiherr-von-Fritsch-Straße 3 D-06120 Halle (Saale) Germany
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40
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Li T, Lipatov A, Lu H, Lee H, Lee JW, Torun E, Wirtz L, Eom CB, Íñiguez J, Sinitskii A, Gruverman A. Optical control of polarization in ferroelectric heterostructures. Nat Commun 2018; 9:3344. [PMID: 30131577 PMCID: PMC6104049 DOI: 10.1038/s41467-018-05640-4] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2017] [Accepted: 07/12/2018] [Indexed: 11/09/2022] Open
Abstract
In the ferroelectric devices, polarization control is usually accomplished by application of an electric field. In this paper, we demonstrate optically induced polarization switching in BaTiO3-based ferroelectric heterostructures utilizing a two-dimensional narrow-gap semiconductor MoS2 as a top electrode. This effect is attributed to the redistribution of the photo-generated carriers and screening charges at the MoS2/BaTiO3 interface. Specifically, a two-step process, which involves formation of intra-layer excitons during light absorption followed by their decay into inter-layer excitons, results in the positive charge accumulation at the interface forcing the polarization reversal from the upward to the downward direction. Theoretical modeling of the MoS2 optical absorption spectra with and without the applied electric field provides quantitative support for the proposed mechanism. It is suggested that the discovered effect is of general nature and should be observable in any heterostructure comprising a ferroelectric and a narrow gap semiconductor.
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Affiliation(s)
- Tao Li
- Department of Physics and Astronomy, University of Nebraska, Lincoln, NE, 68588, USA
| | - Alexey Lipatov
- Department of Chemistry, University of Nebraska, Lincoln, NE, 68588, USA
| | - Haidong Lu
- Department of Physics and Astronomy, University of Nebraska, Lincoln, NE, 68588, USA
| | - Hyungwoo Lee
- Department of Materials Science and Engineering, University of Wisconsin, Madison, WI, 53706, USA
| | - Jung-Woo Lee
- Department of Materials Science and Engineering, University of Wisconsin, Madison, WI, 53706, USA
| | - Engin Torun
- Physics and Materials Science Research Unit, University of Luxembourg, L-1511, Luxembourg, Luxembourg
| | - Ludger Wirtz
- Physics and Materials Science Research Unit, University of Luxembourg, L-1511, Luxembourg, Luxembourg
| | - Chang-Beom Eom
- Department of Materials Science and Engineering, University of Wisconsin, Madison, WI, 53706, USA
| | - Jorge Íñiguez
- Department of Materials Research and Technology, Luxembourg Institute of Science and Technology, 5 Avenue des Hauts-Fourneaux, L-4362, Esch/Alzette, Luxembourg
| | | | - Alexei Gruverman
- Department of Physics and Astronomy, University of Nebraska, Lincoln, NE, 68588, USA.
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41
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Quattropani A, Makhort AS, Rastei MV, Versini G, Schmerber G, Barre S, Dinia A, Slaoui A, Rehspringer JL, Fix T, Colis S, Kundys B. Tuning photovoltaic response in Bi 2FeCrO 6 films by ferroelectric poling. NANOSCALE 2018; 10:13761-13766. [PMID: 29993081 DOI: 10.1039/c8nr03137a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Ferroelectric materials are interesting candidates for future photovoltaic applications due to their potential to overcome the fundamental limits of conventional single bandgap semiconductor-based solar cells. Although a more efficient charge separation and above bandgap photovoltages are advantageous in these materials, tailoring their photovoltaic response using ferroelectric functionalities remains puzzling. Here we address this issue by reporting a clear hysteretic character of the photovoltaic effect as a function of electric field and its dependence on the poling history. Furthermore, we obtain insight into light induced nonequilibrium charge carrier dynamics in Bi2FeCrO6 films involving not only charge generation, but also recombination processes. At the ferroelectric remanence, light is able to electrically depolarize the films with remanent and transient effects as evidenced by electrical and piezoresponse force microscopy (PFM) measurements. The hysteretic nature of the photovoltaic response and its nonlinear character at larger light intensities can be used to optimize the photovoltaic performance of future ferroelectric-based solar cells.
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42
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Zhang Y, Jie W, Chen P, Liu W, Hao J. Ferroelectric and Piezoelectric Effects on the Optical Process in Advanced Materials and Devices. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1707007. [PMID: 29888451 DOI: 10.1002/adma.201707007] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 02/05/2018] [Indexed: 05/12/2023]
Abstract
Piezoelectric and ferroelectric materials have shown great potential for control of the optical process in emerging materials. There are three ways for them to impact on the optical process in various materials. They can act as external perturbations, such as ferroelectric gating and piezoelectric strain, to tune the optical properties of the materials and devices. Second, ferroelectricity and piezoelectricity as innate attributes may exist in some optoelectronic materials, which can couple with other functional features (e.g., semiconductor transport, photoexcitation, and photovoltaics) in the materials giving rise to unprecedented device characteristics. The last way is artificially introducing optical functionalities into ferroelectric and piezoelectric materials and devices, which provides an opportunity for investigating the intriguing interplay between the parameters (e.g., electric field, temperature, and strain) and the introduced optical properties. Here, the tuning strategies, fundamental mechanisms, and recent progress in ferroelectric and piezoelectric effects modulating the optical properties of a wide spectrum of materials, including lanthanide-doped phosphors, quantum dots, 2D materials, wurtzite-type semiconductors, and hybrid perovskites, are presented. Finally, the future outlook and challenges of this exciting field are suggested.
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Affiliation(s)
- Yang Zhang
- Institute of Modern Optics, Nankai University, Tianjin, 300071, China
| | - Wenjing Jie
- Department of Applied Physics, The Hong Kong Polytechnic University, Kowloon, Hong Kong, P. R. China
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610068, China
| | - Ping Chen
- Institute of Modern Optics, Nankai University, Tianjin, 300071, China
| | - Weiwei Liu
- Institute of Modern Optics, Nankai University, Tianjin, 300071, China
| | - Jianhua Hao
- Department of Applied Physics, The Hong Kong Polytechnic University, Kowloon, Hong Kong, P. R. China
- The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, 518057, China
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43
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Yang Y, Paillard C, Xu B, Bellaiche L. Photostriction and elasto-optic response in multiferroics and ferroelectrics from first principles. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2018; 30:073001. [PMID: 29300181 DOI: 10.1088/1361-648x/aaa51f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The present work reviews a series of recent first-principles studies devoted to the description of the interaction of light and strain in ferroelectric and multiferroic materials. Specifically, the modelling schemes used in these works to describe the so-called photostriction and elasto-optic effects are presented, in addition to the results and analysis provided by these ab initio calculations. In particular, the large importance of the piezoelectric effect in the polar direction in the photostriction of ferroelectric materials is stressed. Similarly, the occurrence of low-symmetry phases in lead titanate thin films under tensile strain is demonstrated to result in large elasto-optic constants. In addition, first-principle calculations allow to gain microscopic knowledge of subtle effects, for instance in the case of photostriction, where the deformation potential effect in directions perpendicular to the polar axis is shown to be almost as significant as the piezoelectric effect. As a result, the numerical methods presented here could propel the design of efficient opto-mechanical devices.
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Affiliation(s)
- Yurong Yang
- Department of Physics and Institute for Nanoscience and Engineering, University of Arkansas, Fayetteville, AR 72701, United States of America
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44
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Yang X, Zeng R, Ren Z, Wu Y, Chen X, Li M, Chen J, Zhao R, Zhou D, Liao Z, Tian H, Lu Y, Li X, Li J, Han G. Single-Crystal BiFeO 3 Nanoplates with Robust Antiferromagnetism. ACS APPLIED MATERIALS & INTERFACES 2018; 10:5785-5792. [PMID: 29368504 DOI: 10.1021/acsami.7b17449] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Freestanding and single-crystal BiFeO3 (BFO) nanoplates have been successfully synthesized by a fluoride ion-assisted hydrothermal method, and the thickness of the nanoplates can be effectively tailored from 80 to 380 nm by the concentration of fluoride ions. It is revealed that BFO nanoplates grew via an oriented attachment of layer by layer, giving rise to the formation of the inner interface within the nanoplates. In particular, antiferromagnetic (AFM) phase-transition temperature (Néel temperature, TN) of the BFO nanoplates is significantly enhanced from typical 370 to ∼512 °C, whereas the Curie temperature (TC) of the BFO nanoplates is determined to be ∼830 °C, in good agreement with a bulk value. The combination of scanning transmission electron microscopy, electron energy loss spectroscopy, and the first-principle calculations reveals that the interfacial tensile strain remarkably improves the stability of AFM ordering, accounting for the significant enhancement in TN of BFO plates. Correspondingly, the tensile strain induced the polarization and oxygen octahedral tilting has been observed near the interface. The findings presented here suggest that single-crystal BFO nanoplate is an ideal system for exploring an intrinsic magnetoelectric property, where a tensile strain can be a very promising approach to tailor AFM ordering and polarization rotation for an enhanced coupling effect.
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Affiliation(s)
- Xin Yang
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Cyrus Tang Center for Sensor Materials and Application, Zhejiang University , Hangzhou 310027, China
- Key Laboratory of Advanced Technique & Preparation for Renewable Energy Materials, Ministry of Education, Yunnan Normal University , Kunming 650500, China
| | - RongGuang Zeng
- Science and Technology on Surface Physics and Chemistry Laboratory , P.O. Box 718-35, Mianyang 621907, China
| | - ZhaoHui Ren
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Cyrus Tang Center for Sensor Materials and Application, Zhejiang University , Hangzhou 310027, China
| | - YanFei Wu
- Institute for Quantum Science and Engineering and Department of Physics, South University of Science and Technology of China , Shenzhen 518055, China
| | - Xing Chen
- Center of Electron Microscope, School of Materials Science and Engineering, Zhejiang University , Hangzhou 310027, China
| | - Ming Li
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Cyrus Tang Center for Sensor Materials and Application, Zhejiang University , Hangzhou 310027, China
| | - JiaLu Chen
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Cyrus Tang Center for Sensor Materials and Application, Zhejiang University , Hangzhou 310027, China
| | - RuoYu Zhao
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Cyrus Tang Center for Sensor Materials and Application, Zhejiang University , Hangzhou 310027, China
| | - DiKui Zhou
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Cyrus Tang Center for Sensor Materials and Application, Zhejiang University , Hangzhou 310027, China
| | - ZhiMin Liao
- State Key Laboratory for Mesoscopic Physics, School of Physics, Peking University , Beijing 100871, China
| | - He Tian
- Center of Electron Microscope, School of Materials Science and Engineering, Zhejiang University , Hangzhou 310027, China
| | - YunHao Lu
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Cyrus Tang Center for Sensor Materials and Application, Zhejiang University , Hangzhou 310027, China
| | - Xiang Li
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Cyrus Tang Center for Sensor Materials and Application, Zhejiang University , Hangzhou 310027, China
| | - JiXue Li
- Center of Electron Microscope, School of Materials Science and Engineering, Zhejiang University , Hangzhou 310027, China
| | - GaoRong Han
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Cyrus Tang Center for Sensor Materials and Application, Zhejiang University , Hangzhou 310027, China
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Wei TC, Wang HP, Li TY, Lin CH, Hsieh YH, Chu YH, He JH. Photostriction of CH 3 NH 3 PbBr 3 Perovskite Crystals. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1701789. [PMID: 28715093 DOI: 10.1002/adma.201701789] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Revised: 05/22/2017] [Indexed: 06/07/2023]
Abstract
Organic-inorganic hybrid perovskite materials exhibit a variety of physical properties. Pronounced coupling between phonon, organic cations, and the inorganic framework suggest that these materials exhibit strong light-matter interactions. The photoinduced strain of CH3 NH3 PbBr3 is investigated using high-resolution and contactless in situ Raman spectroscopy. Under illumination, the material exhibits large blue shifts in its Raman spectra that indicate significant structural deformations (i.e., photostriction). From these shifts, the photostrictive coefficient of CH3 NH3 PbBr3 is calculated as 2.08 × 10-8 m2 W-1 at room temperature under visible light illumination. The significant photostriction of CH3 NH3 PbBr3 is attributed to a combination of the photovoltaic effect and translational symmetry loss of the molecular configuration via strong translation-rotation coupling. Unlike CH3 NH3 PbI3 , it is noted that the photostriction of CH3 NH3 PbBr3 is extremely stable, demonstrating no signs of optical decay for at least 30 d. These results suggest the potential of CH3 NH3 PbBr3 for applications in next-generation optical micro-electromechanical devices.
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Affiliation(s)
- Tzu-Chiao Wei
- Computer, Electrical, and Mathematical Sciences and Engineering Division, King Abdullah University of Science & Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Hsin-Ping Wang
- Computer, Electrical, and Mathematical Sciences and Engineering Division, King Abdullah University of Science & Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Ting-You Li
- Computer, Electrical, and Mathematical Sciences and Engineering Division, King Abdullah University of Science & Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Chun-Ho Lin
- Computer, Electrical, and Mathematical Sciences and Engineering Division, King Abdullah University of Science & Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Ying-Hui Hsieh
- Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu, 30010, Taiwan
| | - Ying-Hao Chu
- Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu, 30010, Taiwan
| | - Jr-Hau He
- Computer, Electrical, and Mathematical Sciences and Engineering Division, King Abdullah University of Science & Technology, Thuwal, 23955-6900, Saudi Arabia
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Ahn Y, Park J, Pateras A, Rich MB, Zhang Q, Chen P, Yusuf MH, Wen H, Dawber M, Evans PG. Photoinduced Domain Pattern Transformation in Ferroelectric-Dielectric Superlattices. PHYSICAL REVIEW LETTERS 2017; 119:057601. [PMID: 28949700 DOI: 10.1103/physrevlett.119.057601] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Indexed: 06/07/2023]
Abstract
The nanodomain pattern in ferroelectric-dielectric superlattices transforms to a uniform polarization state under above-band-gap optical excitation. X-ray scattering reveals a disappearance of domain diffuse scattering and an expansion of the lattice. The reappearance of the domain pattern occurs over a period of seconds at room temperature, suggesting a transformation mechanism in which charge carriers in long-lived trap states screen the depolarization field. A Landau-Ginzburg-Devonshire model predicts changes in lattice parameter and a critical carrier concentration for the transformation.
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Affiliation(s)
- Youngjun Ahn
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - Joonkyu Park
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - Anastasios Pateras
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - Matthew B Rich
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - Qingteng Zhang
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - Pice Chen
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - Mohammed H Yusuf
- Department of Physics and Astronomy, Stony Brook University, Stony Brook, New York 11794, USA
| | - Haidan Wen
- Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - Matthew Dawber
- Department of Physics and Astronomy, Stony Brook University, Stony Brook, New York 11794, USA
| | - Paul G Evans
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
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47
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Haleoot R, Paillard C, Kaloni TP, Mehboudi M, Xu B, Bellaiche L, Barraza-Lopez S. Photostrictive Two-Dimensional Materials in the Monochalcogenide Family. PHYSICAL REVIEW LETTERS 2017; 118:227401. [PMID: 28621977 DOI: 10.1103/physrevlett.118.227401] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Indexed: 05/25/2023]
Abstract
Photostriction is predicted for group-IV monochalcogenide monolayers, two-dimensional ferroelectrics with rectangular unit cells (the lattice vector a_{1} is larger than a_{2}) and an intrinsic dipole moment parallel to a_{1}. Photostriction is found to be related to the structural change induced by a screened electric polarization (i.e., a converse piezoelectric effect) in photoexcited electronic states with either p_{x} or p_{y} (in-plane) orbital symmetry that leads to a compression of a_{1} and a comparatively smaller increase of a_{2} for a reduced unit cell area. The structural change documented here is 10 times larger than that observed in BiFeO_{3}, making monochalcogenide monolayers an ultimate platform for this effect. This structural modification should be observable under experimentally feasible densities of photexcited carriers on samples that have been grown already, having a potential usefulness for light-induced, remote mechano-optoelectronic applications.
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Affiliation(s)
- Raad Haleoot
- Department of Physics, University of Arkansas, Fayetteville, Arkansas 72701, USA
- Department of Physics at the College of Education, University of Mustansiriyah, Baghdad 10052, Iraq
| | - Charles Paillard
- Department of Physics, University of Arkansas, Fayetteville, Arkansas 72701, USA
- Institute for Nanoscience and Engineering, University of Arkansas, Fayetteville, Arkansas 72701, USA
| | - Thaneshwor P Kaloni
- Department of Physics, University of Arkansas, Fayetteville, Arkansas 72701, USA
| | - Mehrshad Mehboudi
- Department of Physics, University of Arkansas, Fayetteville, Arkansas 72701, USA
| | - Bin Xu
- Department of Physics, University of Arkansas, Fayetteville, Arkansas 72701, USA
- Institute for Nanoscience and Engineering, University of Arkansas, Fayetteville, Arkansas 72701, USA
| | - L Bellaiche
- Department of Physics, University of Arkansas, Fayetteville, Arkansas 72701, USA
- Institute for Nanoscience and Engineering, University of Arkansas, Fayetteville, Arkansas 72701, USA
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Abstract
Transition metal oxides with a perovskite crystal structure exhibit a variety of physical properties associated with the lattice. Among these materials, strontium ruthenate (SrRuO3) displays unusually strong coupling of charge, spin and lattice degrees of freedom that can give rise to the photostriction, that is, changes in the dimensions of material due to the absorption of light. In this study, we observe a photon-induced strain as high as 1.12% in single domain SrRuO3, which we attribute to a nonequilibrium of phonons that are a result of the strong interaction between the crystalline lattice and electrons excited by light. In addition, these light-induced changes in the SrRuO3 lattice affect its electrical resistance. The observation of both photostriction and photoresistance in SrRuO3 suggests the possibility of utilizing the mechanical and optical functionalities of the material for next-generation optoelectronics, such as remote switches, light-controlled elastic micromotors, microactuators and other optomechanical systems. Light-induced deformation known as photostriction could be used for green energy devices but in most materials the effect is too small to be of practical use. Here, Wei et al. study the photostriction of strontium ruthenate and find photon-induced strain efficiencies of more than one percent.
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49
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Wang T, Torres D, Fernández FE, Wang C, Sepúlveda N. Maximizing the performance of photothermal actuators by combining smart materials with supplementary advantages. SCIENCE ADVANCES 2017; 3:e1602697. [PMID: 28439553 PMCID: PMC5400441 DOI: 10.1126/sciadv.1602697] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Accepted: 02/23/2017] [Indexed: 05/20/2023]
Abstract
The search for higher-performance photothermal microactuators has typically involved unavoidable trade-offs that hinder the demonstration of ubiquitous devices with high energy density, speed, flexibility, efficiency, sensitivity, and multifunctionality. Improving some of these parameters often implies deterioration of others. Photothermal actuators are driven by the conversion of absorbed optical energy into thermal energy, which, by different mechanisms, can produce mechanical displacement of a structure. We present a device that has been strategically designed to show high performance in every metric and respond to optical radiation of selected wavelength bands. The device combines the large energy densities and sensitivity of vanadium dioxide (VO2)-based actuators with the wavelength-selective absorption properties of single-walled carbon nanotube (SWNT) films of different chiralities. SWNT coatings increased the speed of VO2 actuators by a factor of 2 while decreasing the power consumption by approximately 50%. Devices coated with metallic SWNT were found to be 1.57 times more responsive to red light than to near-infrared, whereas semiconducting SWNT coatings resulted in 1.42 times higher responsivities to near-infrared light than to red light. The added functionality establishes a link between optical and mechanical domains of high-performance photoactuators and enables the future development of mechanical logic gates and electronic devices that are triggered by optical radiation from different frequency bands.
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Affiliation(s)
- Tongyu Wang
- Department of Electrical and Computer Engineering, Michigan State University, East Lansing, MI 48824, USA
| | - David Torres
- Department of Electrical and Computer Engineering, Michigan State University, East Lansing, MI 48824, USA
| | - Félix E. Fernández
- Department of Physics, University of Puerto Rico-Mayagüez, Mayagüez, PR 00681, USA
| | - Chuan Wang
- Department of Electrical and Computer Engineering, Michigan State University, East Lansing, MI 48824, USA
| | - Nelson Sepúlveda
- Department of Electrical and Computer Engineering, Michigan State University, East Lansing, MI 48824, USA
- Corresponding author.
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The Gadolinium (Gd 3+) and Tin (Sn 4+) Co-doped BiFeO 3 Nanoparticles as New Solar Light Active Photocatalyst. Sci Rep 2017; 7:42493. [PMID: 28195198 PMCID: PMC5307368 DOI: 10.1038/srep42493] [Citation(s) in RCA: 89] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Accepted: 01/11/2017] [Indexed: 11/25/2022] Open
Abstract
The process of photocatalysis is appealing to huge interest motivated by the great promise of addressing current energy and environmental issues through converting solar light directly into chemical energy. However, an efficient solar energy harvesting for photocatalysis remains a critical challenge. Here, we reported a new full solar spectrum driven photocatalyst by co-doping of Gd3+ and Sn4+ into A and B-sites of BiFeO3 simultaneously. The co-doping of Gd3+ and Sn4+ played a key role in hampering the recombination of electron-hole pairs and shifted the band-gap of BiFeO3 from 2.10 eV to 2.03 eV. The Brunauer-Emmett-Teller (BET) measurement confirmed that the co-doping of Gd3+ and Sn4+ into BiFeO3 increased the surface area and porosity, and thus the photocatalytic activity of the Bi0.90Gd0.10Fe0.95Sn0.05O3 system was significantly improved. Our work proposed a new photocatalyst that could degrade various organic dyes like Congo red, Methylene blue, and Methyl violet under irradiation with different light wavelengths and gave guidance for designing more efficient photocatalysts.
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