1
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Smink S, Majer LN, Boschker H, Mannhart J, Braun W. Long-Range Atomic Order on Double-Stepped Al 2O 3(0001) Surfaces. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2312899. [PMID: 38457527 DOI: 10.1002/adma.202312899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 02/26/2024] [Indexed: 03/10/2024]
Abstract
The deterministic preparation of highly ordered single-crystalline surfaces is a key step for studying and utilizing the physical properties of various advanced materials. This paper presents the fast and straightforward preparation of vicinal Al2O3(0001) surfaces with micrometer-scale atomic order. Crisp electron-diffraction spots up to at least 20th order evidence atomic coherence on terraces with widths exceeding 1 μm. The unique combination of three properties of Al2O3(0001) underlie this remarkable coherence: its high-temperature stability; the differences in the ionic bonding systems of the surface as compared to the bulk; and the fact that the terraces are non-polar whereas the step edges have a polar character. The step edges are furthermore found to have alternating configurations, which drive a step-doubling transition. On double-stepped surfaces, the Al-rich( 31 × 31 ) R ± 9 $(\sqrt {31}\times \sqrt {31})\textrm {R}\pm 9$ ° surface reconstruction attains a singular in-plane orientation. These results set a benchmark for high-quality surface preparation and thus expand the scope for both fundamental studies on and the technological utilization of exciting material systems.
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Affiliation(s)
- Sander Smink
- Max Planck Institute for Solid State Research, Heisenbergstraße 1, 70569, Stuttgart, Germany
- MESA+ Institute for Nanotechnology, University of Twente, P.O. Box 217, Enschede, 7500 AE, The Netherlands
| | - Lena N Majer
- Max Planck Institute for Solid State Research, Heisenbergstraße 1, 70569, Stuttgart, Germany
| | - Hans Boschker
- epiray GmbH, Heisenbergstraße 1, 70569, Stuttgart, Germany
| | - Jochen Mannhart
- Max Planck Institute for Solid State Research, Heisenbergstraße 1, 70569, Stuttgart, Germany
| | - Wolfgang Braun
- Max Planck Institute for Solid State Research, Heisenbergstraße 1, 70569, Stuttgart, Germany
- epiray GmbH, Heisenbergstraße 1, 70569, Stuttgart, Germany
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2
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Lee K, Park K, Choi IH, Cho JW, Song MS, Kim CH, Lee JH, Lee JS, Park J, Chae SC. Deterministic Orientation Control of Ferroelectric HfO 2 Thin Film Growth by a Topotactic Phase Transition of an Oxide Electrode. ACS NANO 2024; 18:12707-12715. [PMID: 38733336 DOI: 10.1021/acsnano.3c07410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2024]
Abstract
The scale-free ferroelectricity with superior Si compatibility of HfO2 has reawakened the feasibility of scaled-down nonvolatile devices and beyond the complementary metal-oxide-semiconductor (CMOS) architecture based on ferroelectric materials. However, despite the rapid development, fundamental understanding, and control of the metastable ferroelectric phase in terms of oxygen ion movement of HfO2 remain ambiguous. In this study, we have deterministically controlled the orientation of a single-crystalline ferroelectric phase HfO2 thin film via oxygen ion movement. We induced a topotactic phase transition of the metal electrode accompanied by the stabilization of the differently oriented ferroelectric phase HfO2 through the migration of oxygen ions between the oxygen-reactive metal electrode and the HfO2 layer. By stabilizing different polarization directions of HfO2 through oxygen ion migration, we can gain a profound understanding of the oxygen ion-relevant unclear phenomena of ferroelectric HfO2.
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Affiliation(s)
- Kyoungjun Lee
- Department of Physics Education, Seoul National University, Seoul 08826, Korea
| | - Kunwoo Park
- School of Chemical and Biological Engineering, Institute of Chemical Process, Seoul National University, Seoul 08826, Korea
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Korea
| | - In Hyeok Choi
- Department of Physics and Photon Science, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Korea
| | - Jung Woo Cho
- Department of Physics Education, Seoul National University, Seoul 08826, Korea
| | - Myeong Seop Song
- Department of Physics Education, Seoul National University, Seoul 08826, Korea
| | - Chang Hoon Kim
- Department of Energy Engineering, School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Korea
| | - Jun Hee Lee
- Department of Energy Engineering, School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Korea
- Graduate School of Semiconductor Materials and Devices Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Korea
| | - Jong Seok Lee
- Department of Physics and Photon Science, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Korea
| | - Jungwon Park
- School of Chemical and Biological Engineering, Institute of Chemical Process, Seoul National University, Seoul 08826, Korea
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Korea
| | - Seung Chul Chae
- Department of Physics Education, Seoul National University, Seoul 08826, Korea
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3
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Huang H, Wang J, Liu Y, Zhao M, Zhang N, Hu Y, Fan F, Feng J, Li Z, Zou Z. Stacking textured films on lattice-mismatched transparent conducting oxides via matched Voronoi cell of oxygen sublattice. NATURE MATERIALS 2024; 23:383-390. [PMID: 38062169 DOI: 10.1038/s41563-023-01746-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 10/31/2023] [Indexed: 12/24/2023]
Abstract
Transparent conducting oxides are a critical component in modern (opto)electronic devices and solar energy conversion systems, and forming textured functional films on them is highly desirable for property manipulation and performance optimization. However, technologically important materials show varied crystal structures, making it difficult to establish coherent interfaces and consequently the oriented growth of these materials on transparent conducting oxides. Here, taking lattice-mismatched hexagonal α-Fe2O3 and tetragonal fluorine-doped tin oxide as the example, atomic-level investigations reveal that a coherent ordered structure forms at their interface, and via an oxygen-mediated dimensional and chemical-matching manner, that is, matched Voronoi cells of oxygen sublattices, [110]-oriented α-Fe2O3 films develop on fluorine-doped tin oxide. Further measurements of charge transport characteristics and photoelectronic effects highlight the importance and advantages of coherent interfaces and well-defined orientation in textured α-Fe2O3 films. Textured growth of lattice-mismatched oxides, including spinel Co3O4, fluorite CeO2, perovskite BiFeO3 and even halide perovskite Cs2AgBiBr6, on fluorine-doped tin oxide is also achieved, offering new opportunities to develop high-performance transparent-conducting-oxide-supported devices.
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Affiliation(s)
- Huiting Huang
- Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Nanjing University, Nanjing, People's Republic of China
| | - Jun Wang
- Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Nanjing University, Nanjing, People's Republic of China
- Jiangsu Key Laboratory for Nano Technology, School of Physics, Nanjing University, Nanjing, People's Republic of China
| | - Yong Liu
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, People's Republic of China
| | - Minyue Zhao
- Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Nanjing University, Nanjing, People's Republic of China
| | - Ningsi Zhang
- Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Nanjing University, Nanjing, People's Republic of China
| | - Yingfei Hu
- Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Nanjing University, Nanjing, People's Republic of China
- Jiangsu Key Laboratory for Nano Technology, School of Physics, Nanjing University, Nanjing, People's Republic of China
| | - Fengtao Fan
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, People's Republic of China
| | - Jianyong Feng
- Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Nanjing University, Nanjing, People's Republic of China.
| | - Zhaosheng Li
- Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Nanjing University, Nanjing, People's Republic of China.
- Jiangsu Key Laboratory for Nano Technology, School of Physics, Nanjing University, Nanjing, People's Republic of China.
| | - Zhigang Zou
- Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Nanjing University, Nanjing, People's Republic of China
- Jiangsu Key Laboratory for Nano Technology, School of Physics, Nanjing University, Nanjing, People's Republic of China
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4
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Lin C, Zhang Z, Dai Z, Wu M, Liu S, Chen J, Hua C, Lu Y, Zhang F, Lou H, Dong H, Zeng Q, Ma J, Pi X, Zhou D, Wu Y, Tian H, Rappe AM, Ren Z, Han G. Solution epitaxy of polarization-gradient ferroelectric oxide films with colossal photovoltaic current. Nat Commun 2023; 14:2341. [PMID: 37095113 PMCID: PMC10126087 DOI: 10.1038/s41467-023-37823-z] [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: 11/17/2021] [Accepted: 03/27/2023] [Indexed: 04/26/2023] Open
Abstract
Solution growth of single-crystal ferroelectric oxide films has long been pursued for the low-cost development of high-performance electronic and optoelectronic devices. However, the established principles of vapor-phase epitaxy cannot be directly applied to solution epitaxy, as the interactions between the substrates and the grown materials in solution are quite different. Here, we report the successful epitaxy of single-domain ferroelectric oxide films on Nb-doped SrTiO3 single-crystal substrates by solution reaction at a low temperature of ~200 oC. The epitaxy is mainly driven by an electronic polarization screening effect at the interface between the substrates and the as-grown ferroelectric oxide films, which is realized by the electrons from the doped substrates. Atomic-level characterization reveals a nontrivial polarization gradient throughout the films in a long range up to ~500 nm because of a possible structural transition from the monoclinic phase to the tetragonal phase. This polarization gradient generates an extremely high photovoltaic short-circuit current density of ~2.153 mA/cm2 and open-circuit voltage of ~1.15 V under 375 nm light illumination with power intensity of 500 mW/cm2, corresponding to the highest photoresponsivity of ~4.306×10-3 A/W among all known ferroelectrics. Our results establish a general low-temperature solution route to produce single-crystal gradient films of ferroelectric oxides and thus open the avenue for their broad applications in self-powered photo-detectors, photovoltaic and optoelectronic devices.
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Affiliation(s)
- Chen Lin
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Zijun Zhang
- Center of Electron Microscope, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Zhenbang Dai
- Department of Chemistry, University of Pennsylvania, Philadelphia, PA, 19104-6323, USA
- Oden Institute for Computational Engineering and Sciences, The University of Texas at Austin, Austin, Texas, 78712, USA
| | - Mengjiao Wu
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Shi Liu
- Key Laboratory for Quantum Materials of Zhejiang Province, Department of Physics, School of Science, Westlake University, Hangzhou, 310024, China
| | - Jialu Chen
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Chenqiang Hua
- Zhejiang Province Key Laboratory of Quantum Technology and Device, Department of physics, Zhejiang University, Hangzhou, 310027, China
| | - Yunhao Lu
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
- Zhejiang Province Key Laboratory of Quantum Technology and Device, Department of physics, Zhejiang University, Hangzhou, 310027, China
| | - Fei Zhang
- Center for High Pressure Science and Technology Advanced Research, Shanghai, 201203, China
| | - Hongbo Lou
- Center for High Pressure Science and Technology Advanced Research, Shanghai, 201203, China
| | - Hongliang Dong
- Center for High Pressure Science and Technology Advanced Research, Shanghai, 201203, China
| | - Qiaoshi Zeng
- Center for High Pressure Science and Technology Advanced Research, Shanghai, 201203, China
| | - Jing Ma
- State Key Lab of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100091, China
| | - Xiaodong Pi
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
- Institute of Advanced Semiconductors & Zhejiang Provincial Key Laboratory of Power Semiconductor Materials and Devices, ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou, 311215, China
| | - Dikui Zhou
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
- Research Center for Intelligent Sensing, Zhejiang Lab, Hangzhou, 311100, China
| | - Yongjun Wu
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
- Research Center for Intelligent Sensing, Zhejiang Lab, Hangzhou, 311100, China
| | - He Tian
- Center of Electron Microscope, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China.
| | - Andrew M Rappe
- Department of Chemistry, University of Pennsylvania, Philadelphia, PA, 19104-6323, USA
| | - Zhaohui Ren
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China.
- Research Center for Intelligent Sensing, Zhejiang Lab, Hangzhou, 311100, China.
| | - Gaorong Han
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China.
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5
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Shirsath SE, Assadi MHN, Zhang J, Kumar N, Gaikwad AS, Yang J, Maynard-Casely HE, Tay YY, Du J, Wang H, Yao Y, Chen Z, Zhang J, Zhang S, Li S, Wang D. Interface-Driven Multiferroicity in Cubic BaTiO 3-SrTiO 3 Nanocomposites. ACS NANO 2022; 16:15413-15424. [PMID: 36070478 DOI: 10.1021/acsnano.2c07215] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Perovskite multiferroics have drawn significant attention in the development of next-generation multifunctional electronic devices. However, the majority of existing multiferroics exhibit ferroelectric and ferromagnetic orderings only at low temperatures. Although interface engineering in complex oxide thin films has triggered many exotic room-temperature functionalities, the desired coupling of charge, spin, orbital and lattice degrees of freedom often imposes stringent requirements on deposition conditions, layer thickness and crystal orientation, greatly hindering their cost-effective large-scale applications. Herein, we report an interface-driven multiferroicity in low-cost and environmentally friendly bulk polycrystalline material, namely cubic BaTiO3-SrTiO3 nanocomposites which were fabricated through a simple, high-throughput solid-state reaction route. Interface reconstruction in the nanocomposites can be readily controlled by the processing conditions. Coexistence of room-temperature ferromagnetism and ferroelectricity, accompanying a robust magnetoelectric coupling in the nanocomposites, was confirmed both experimentally and theoretically. Our study explores the 'hidden treasure at the interface' by creating a playground in bulk perovskite oxides, enabling a broad range of applications that are challenging with thin films, such as low-power-consumption large-volume memory and magneto-optic spatial light modulator.
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Affiliation(s)
- Sagar E Shirsath
- School of Materials Science and Engineering, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - M Hussein N Assadi
- RIKEN Center for Emergent Matter Science (CEMS), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Ji Zhang
- School of Materials Science and Engineering, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Nitish Kumar
- School of Materials Science and Engineering, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Anil S Gaikwad
- Department of Physics, Vivekanand College, Aurangabad 431001, Maharashtra, India
| | - Jack Yang
- School of Materials Science and Engineering, The University of New South Wales, Sydney, New South Wales 2052, Australia
- UNSW Materials and Manufacturing Futures Institute, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Helen E Maynard-Casely
- Australian Nuclear Science and Technology Organisation, New Illawarra Road, Lucas Heights, New South Wales 2234, Australia
| | - Yee Yan Tay
- Facility for Analysis, Characterization, Testing and Simulation and School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798 Singapore
| | - Jianhao Du
- School of Materials Science and Engineering, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Haoyu Wang
- School of Materials Science and Engineering, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Yin Yao
- Mark Wainwright Analytical Centre UNSW Sydney, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Zibin Chen
- Department of Industrial and Systems Engineering, The Hong Kong Polytechnic University, Hong Kong, China
| | - Jinxing Zhang
- Department of Physics, Beijing Normal University, 100875 Beijing, China
| | - Shujun Zhang
- Institute for Superconducting and Electronic Materials, Australian Institute of Innovative Materials, University of Wollongong, Wollongong, New South Wales 2500, Australia
| | - Sean Li
- School of Materials Science and Engineering, The University of New South Wales, Sydney, New South Wales 2052, Australia
- UNSW Materials and Manufacturing Futures Institute, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Danyang Wang
- School of Materials Science and Engineering, The University of New South Wales, Sydney, New South Wales 2052, Australia
- UNSW Materials and Manufacturing Futures Institute, The University of New South Wales, Sydney, New South Wales 2052, Australia
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6
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Zhou J, Gao Z, Xiang G, Zhai T, Liu Z, Zhao W, Liang X, Wang L. Interfacial compatibility critically controls Ru/TiO 2 metal-support interaction modes in CO 2 hydrogenation. Nat Commun 2022; 13:327. [PMID: 35039518 PMCID: PMC8764066 DOI: 10.1038/s41467-021-27910-4] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Accepted: 12/08/2021] [Indexed: 11/09/2022] Open
Abstract
Supports can widely affect or even dominate the catalytic activity, selectivity, and stability of metal nanoparticles through various metal-support interactions (MSIs). However, underlying principles have not been fully understood yet, because MSIs are influenced by the composition, size, and facet of both metals and supports. Using Ru/TiO2 supported on rutile and anatase as model catalysts, we demonstrate that metal-support interfacial compatibility can critically control MSI modes and catalytic performances in CO2 hydrogenation. Annealing Ru/rutile-TiO2 in air can enhance CO2 conversion to methane resulting from enhanced interfacial coupling driven by matched lattices of RuOx with rutile-TiO2; annealing Ru/anatase-TiO2 in air decreases CO2 conversion and converts the product into CO owing to strong metal-support interaction (SMSI). Although rutile and anatase share the same chemical composition, we show that interfacial compatibility can basically modify metal-support coupling strength, catalyst morphology, surface atomic configuration, MSI mode, and catalytic performances of Ru/TiO2 in heterogeneous catalysis. Supports can largely affect the catalytic performance of metal nanoparticles, but the underlying principles are not yet fully understood. Here the authors demonstrate that metal-support interfacial compatibility of Ru/TiO2 can critically control the metal-support interaction modes and the catalytic performances in CO2 hydrogenation.
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Affiliation(s)
- Jun Zhou
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Zhe Gao
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taoyuan South Road 27, Taiyuan, 030001, China
| | - Guolei Xiang
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China.
| | - Tianyu Zhai
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Zikai Liu
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Weixin Zhao
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Xin Liang
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Leyu Wang
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China.
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7
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Wardini JL, Vahidi H, Guo H, Bowman WJ. Probing Multiscale Disorder in Pyrochlore and Related Complex Oxides in the Transmission Electron Microscope: A Review. Front Chem 2021; 9:743025. [PMID: 34917587 PMCID: PMC8668443 DOI: 10.3389/fchem.2021.743025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Accepted: 10/15/2021] [Indexed: 11/13/2022] Open
Abstract
Transmission electron microscopy (TEM), and its counterpart, scanning TEM (STEM), are powerful materials characterization tools capable of probing crystal structure, composition, charge distribution, electronic structure, and bonding down to the atomic scale. Recent (S)TEM instrumentation developments such as electron beam aberration-correction as well as faster and more efficient signal detection systems have given rise to new and more powerful experimental methods, some of which (e.g., 4D-STEM, spectrum-imaging, in situ/operando (S)TEM)) facilitate the capture of high-dimensional datasets that contain spatially-resolved structural, spectroscopic, time- and/or stimulus-dependent information across the sub-angstrom to several micrometer length scale. Thus, through the variety of analysis methods available in the modern (S)TEM and its continual development towards high-dimensional data capture, it is well-suited to the challenge of characterizing isometric mixed-metal oxides such as pyrochlores, fluorites, and other complex oxides that reside on a continuum of chemical and spatial ordering. In this review, we present a suite of imaging and diffraction (S)TEM techniques that are uniquely suited to probe the many types, length-scales, and degrees of disorder in complex oxides, with a focus on disorder common to pyrochlores, fluorites and the expansive library of intermediate structures they may adopt. The application of these techniques to various complex oxides will be reviewed to demonstrate their capabilities and limitations in resolving the continuum of structural and chemical ordering in these systems.
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Affiliation(s)
- Jenna L. Wardini
- Materials Science and Engineering, University of California, Irvine, Irvine, CA, United States
| | - Hasti Vahidi
- Materials Science and Engineering, University of California, Irvine, Irvine, CA, United States
| | - Huiming Guo
- Materials Science and Engineering, University of California, Irvine, Irvine, CA, United States
| | - William J. Bowman
- Materials Science and Engineering, University of California, Irvine, Irvine, CA, United States
- Irvine Materials Research Institute, Irvine, CA, United States
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8
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Dubnack O, Müller FA. Oxidic 2D Materials. MATERIALS 2021; 14:ma14185213. [PMID: 34576436 PMCID: PMC8469416 DOI: 10.3390/ma14185213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 09/07/2021] [Accepted: 09/08/2021] [Indexed: 11/18/2022]
Abstract
The possibility of producing stable thin films, only a few atomic layers thick, from a variety of materials beyond graphene has led to two-dimensional (2D) materials being studied intensively in recent years. By reducing the layer thickness and approaching the crystallographic monolayer limit, a variety of unexpected and technologically relevant property phenomena were observed, which also depend on the subsequent arrangement and possible combination of individual layers to form heterostructures. These properties can be specifically used for the development of multifunctional devices, meeting the requirements of the advancing miniaturization of modern manufacturing technologies and the associated need to stabilize physical states even below critical layer thicknesses of conventional materials in the fields of electronics, magnetism and energy conversion. Differences in the structure of potential two-dimensional materials result in decisive influences on possible growth methods and possibilities for subsequent transfer of the thin films. In this review, we focus on recent advances in the rapidly growing field of two-dimensional materials, highlighting those with oxidic crystal structure like perovskites, garnets and spinels. In addition to a selection of well-established growth techniques and approaches for thin film transfer, we evaluate in detail their application potential as free-standing monolayers, bilayers and multilayers in a wide range of advanced technological applications. Finally, we provide suggestions for future developments of this promising research field in consideration of current challenges regarding scalability and structural stability of ultra-thin films.
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Affiliation(s)
- Oliver Dubnack
- Otto Schott Institute of Materials Research (OSIM), Friedrich Schiller University Jena, Löbdergraben 32, 07743 Jena, Germany;
| | - Frank A. Müller
- Otto Schott Institute of Materials Research (OSIM), Friedrich Schiller University Jena, Löbdergraben 32, 07743 Jena, Germany;
- Center for Energy and Environmental Chemistry Jena (CEEC Jena), Friedrich Schiller University Jena, Philosophenweg 7a, 07743 Jena, Germany
- Correspondence:
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9
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Lu H, Tournet J, Dastafkan K, Liu Y, Ng YH, Karuturi SK, Zhao C, Yin Z. Noble-Metal-Free Multicomponent Nanointegration for Sustainable Energy Conversion. Chem Rev 2021; 121:10271-10366. [PMID: 34228446 DOI: 10.1021/acs.chemrev.0c01328] [Citation(s) in RCA: 55] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Global energy and environmental crises are among the most pressing challenges facing humankind. To overcome these challenges, recent years have seen an upsurge of interest in the development and production of renewable chemical fuels as alternatives to the nonrenewable and high-polluting fossil fuels. Photocatalysis, photoelectrocatalysis, and electrocatalysis provide promising avenues for sustainable energy conversion. Single- and dual-component catalytic systems based on nanomaterials have been intensively studied for decades, but their intrinsic weaknesses hamper their practical applications. Multicomponent nanomaterial-based systems, consisting of three or more components with at least one component in the nanoscale, have recently emerged. The multiple components are integrated together to create synergistic effects and hence overcome the limitation for outperformance. Such higher-efficiency systems based on nanomaterials will potentially bring an additional benefit in balance-of-system costs if they exclude the use of noble metals, considering the expense and sustainability. It is therefore timely to review the research in this field, providing guidance in the development of noble-metal-free multicomponent nanointegration for sustainable energy conversion. In this work, we first recall the fundamentals of catalysis by nanomaterials, multicomponent nanointegration, and reactor configuration for water splitting, CO2 reduction, and N2 reduction. We then systematically review and discuss recent advances in multicomponent-based photocatalytic, photoelectrochemical, and electrochemical systems based on nanomaterials. On the basis of these systems, we further laterally evaluate different multicomponent integration strategies and highlight their impacts on catalytic activity, performance stability, and product selectivity. Finally, we provide conclusions and future prospects for multicomponent nanointegration. This work offers comprehensive insights into the development of cost-competitive multicomponent nanomaterial-based systems for sustainable energy-conversion technologies and assists researchers working toward addressing the global challenges in energy and the environment.
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Affiliation(s)
- Haijiao Lu
- Research School of Chemistry, The Australian National University, Canberra, Australian Capital Territory 2601, Australia
| | - Julie Tournet
- Department of Electronic Materials Engineering, Research School of Physics, The Australian National University, Canberra, Australian Capital Territory 2601, Australia
| | - Kamran Dastafkan
- School of Chemistry, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Yun Liu
- Research School of Chemistry, The Australian National University, Canberra, Australian Capital Territory 2601, Australia
| | - Yun Hau Ng
- School of Energy and Environment, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong
| | - Siva Krishna Karuturi
- Department of Electronic Materials Engineering, Research School of Physics, The Australian National University, Canberra, Australian Capital Territory 2601, Australia.,Research School of Electrical, Energy and Materials Engineering, The Australian National University, Canberra, Australian Capital Territory 2601, Australia
| | - Chuan Zhao
- School of Chemistry, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Zongyou Yin
- Research School of Chemistry, The Australian National University, Canberra, Australian Capital Territory 2601, Australia
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10
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Zhang ZS, Fu Q, Xu K, Wang WW, Fu XP, Zheng XS, Wu K, Ma C, Si R, Jia CJ, Sun LD, Yan CH. Intrinsically Active Surface in a Pt/γ-Mo2N Catalyst for the Water–Gas Shift Reaction: Molybdenum Nitride or Molybdenum Oxide? J Am Chem Soc 2020; 142:13362-13371. [DOI: 10.1021/jacs.9b11088] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Zhe-Shan Zhang
- Key Laboratory for Colloid and Interface Chemistry, Key Laboratory of Special Aggregated Materials, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Qiang Fu
- Key Laboratory for Colloid and Interface Chemistry, Key Laboratory of Special Aggregated Materials, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Kai Xu
- Key Laboratory for Colloid and Interface Chemistry, Key Laboratory of Special Aggregated Materials, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Wei-Wei Wang
- Key Laboratory for Colloid and Interface Chemistry, Key Laboratory of Special Aggregated Materials, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Xin-Pu Fu
- Key Laboratory for Colloid and Interface Chemistry, Key Laboratory of Special Aggregated Materials, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Xu-Sheng Zheng
- National Synchrotron Radiation Laboratory, Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China
| | - Ke Wu
- Beijing National Laboratory for Molecular Sciences, State Key Lab of Rare Earth Materials Chemistry and Applications, PKU-HKU Joint Lab in Rare Earth Materials and Bioinorganic Chemistry, Peking University, Beijing 100871, China
| | - Chao Ma
- College of Materials Science and Engineering, Hunan University, Changsha 410082, China
| | - Rui Si
- Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201204, China
| | - Chun-Jiang Jia
- Key Laboratory for Colloid and Interface Chemistry, Key Laboratory of Special Aggregated Materials, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Ling-Dong Sun
- Beijing National Laboratory for Molecular Sciences, State Key Lab of Rare Earth Materials Chemistry and Applications, PKU-HKU Joint Lab in Rare Earth Materials and Bioinorganic Chemistry, Peking University, Beijing 100871, China
| | - Chun-Hua Yan
- Beijing National Laboratory for Molecular Sciences, State Key Lab of Rare Earth Materials Chemistry and Applications, PKU-HKU Joint Lab in Rare Earth Materials and Bioinorganic Chemistry, Peking University, Beijing 100871, China
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11
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Quintela CX, Song K, Shao DF, Xie L, Nan T, Paudel TR, Campbell N, Pan X, Tybell T, Rzchowski MS, Tsymbal EY, Choi SY, Eom CB. Epitaxial antiperovskite/perovskite heterostructures for materials design. SCIENCE ADVANCES 2020; 6:eaba4017. [PMID: 32832665 PMCID: PMC7439405 DOI: 10.1126/sciadv.aba4017] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Accepted: 06/10/2020] [Indexed: 06/11/2023]
Abstract
Engineered heterostructures formed by complex oxide materials are a rich source of emergent phenomena and technological applications. In the quest for new functionality, a vastly unexplored avenue is interfacing oxide perovskites with materials having dissimilar crystallochemical properties. Here, we propose a unique class of heterointerfaces based on nitride antiperovskite and oxide perovskite materials as a previously unidentified direction for materials design. We demonstrate the fabrication of atomically sharp interfaces between nitride antiperovskite Mn3GaN and oxide perovskites (La0.3Sr0.7)(Al0.65Ta0.35)O3 and SrTiO3. Using atomic-resolution imaging/spectroscopic techniques and first-principles calculations, we determine the atomic-scale structure, composition, and bonding at the interface. The epitaxial antiperovskite/perovskite heterointerface is mediated by a coherent interfacial monolayer that interpolates between the two antistructures. We anticipate our results to be an important step for the development of functional antiperovskite/perovskite heterostructures, combining their unique characteristics such as topological properties for ultralow-power applications.
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Affiliation(s)
- Camilo X. Quintela
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Kyung Song
- Department of Materials Modeling and Characterization, KIMS, Changwon 51508, South Korea
| | - Ding-Fu Shao
- Department of Physics and Astronomy and Nebraska Center for Materials and Nanoscience, University of Nebraska, Lincoln, NE 68588, USA
| | - Lin Xie
- National Laboratory of Solid State Microstructures and College of Engineering and Applied Sciences, Nanjing University, Nanjing, Jiangsu 210093, People’s Republic of China
| | - Tianxiang Nan
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Tula R. Paudel
- Department of Physics and Astronomy and Nebraska Center for Materials and Nanoscience, University of Nebraska, Lincoln, NE 68588, USA
| | - Neil Campbell
- Department of Physics, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Xiaoqing Pan
- Department of Materials Science and Engineering and Department of Physics and Astronomy, University of California-Irvine, Irvine, CA 92697, USA
| | - Thomas Tybell
- Department of Electronic Systems, Norwegian University of Science and Technology, Trondheim 7491, Norway
| | - Mark S. Rzchowski
- Department of Physics, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Evgeny Y. Tsymbal
- Department of Physics and Astronomy and Nebraska Center for Materials and Nanoscience, University of Nebraska, Lincoln, NE 68588, USA
| | - Si-Young Choi
- Department of Materials Science and Engineering, POSTECH, Pohang 37673, South Korea
| | - Chang-Beom Eom
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA
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12
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Li X, Ji Y, Li J, Zhang Y, Liu H, Li Q, Jia L, Guo X, Zhong Z, Su F. Yolk‐Shell‐Structured CuO−ZnO−In
2
O
3
Trimetallic Oxide Mesocrystal Microspheres as an Efficient Catalyst for Trichlorosilane Production. ChemCatChem 2020. [DOI: 10.1002/cctc.201902330] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Xin Li
- College of Chemistry and Chemical Engineering Key Laboratory of Fine Chemicals of College of Heilongjiang ProvinceQiqihaer University Heilongjiang Qiqihaer 161006 P. R. China
- State Key Laboratory of Multiphase Complex Systems Institute of Process EngineeringChinese Academy of Sciences Beijing 100190 P. R. China
| | - Yongjun Ji
- State Key Laboratory of Multiphase Complex Systems Institute of Process EngineeringChinese Academy of Sciences Beijing 100190 P. R. China
- Zhongke Langfang Institute of Process Engineering Fenghua Road No 1 Langfang Economic & Technical Development Zone Hebei Langfang 065001 P. R. China
| | - Jing Li
- State Key Laboratory of Multiphase Complex Systems Institute of Process EngineeringChinese Academy of Sciences Beijing 100190 P. R. China
| | - Yu Zhang
- State Key Laboratory of Multiphase Complex Systems Institute of Process EngineeringChinese Academy of Sciences Beijing 100190 P. R. China
| | - Hezhi Liu
- State Key Laboratory of Multiphase Complex Systems Institute of Process EngineeringChinese Academy of Sciences Beijing 100190 P. R. China
| | - Qiongguang Li
- State Key Laboratory of Multiphase Complex Systems Institute of Process EngineeringChinese Academy of Sciences Beijing 100190 P. R. China
| | - Lihua Jia
- College of Chemistry and Chemical Engineering Key Laboratory of Fine Chemicals of College of Heilongjiang ProvinceQiqihaer University Heilongjiang Qiqihaer 161006 P. R. China
| | - Xiangfeng Guo
- College of ChemistryGuangdong University of Petrochemical Technology Guangdong Maoming 525000 P. R. China
| | - Ziyi Zhong
- College of EngineeringGuangdong Technion Israel Institute of Technology (GTIIT) 241 Daxue Road Shantou 515063 P. R. China
- Technion-Israel Institute of Technology (IIT) Haifa 32000 Israel
| | - Fabing Su
- State Key Laboratory of Multiphase Complex Systems Institute of Process EngineeringChinese Academy of Sciences Beijing 100190 P. R. China
- Zhongke Langfang Institute of Process Engineering Fenghua Road No 1 Langfang Economic & Technical Development Zone Hebei Langfang 065001 P. R. China
- Institute of Industrial Chemistry and Energy TechnologyShenyang University of Chemical Technology Liaoning Shenyang 110142 P. R. China
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13
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Jo J, Nallagatlla VR, Acharya SK, Kang Y, Kim Y, Yoon S, Lee S, Baik H, Han S, Kim M, Jung CU. Effects of the Heterointerface on the Growth Characteristics of a Brownmillerite SrFeO 2.5 Thin Film Grown on SrRuO 3 and SrTiO 3 Perovskites. Sci Rep 2020; 10:3807. [PMID: 32123253 PMCID: PMC7052257 DOI: 10.1038/s41598-020-60772-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Accepted: 02/07/2020] [Indexed: 11/25/2022] Open
Abstract
Manipulation of the heterointerfacial structure and/or chemistry of transition metal oxides is of great interest for the development of novel properties. However, few studies have focused on heterointerfacial effects on the growth characteristics of oxide thin films, although such interfacial engineering is crucial to determine the growth dynamics and physical properties of oxide heterostructures. Herein, we show that heterointerfacial effects play key roles in determining the growth process of oxide thin films by overcoming the simple epitaxial strain energy. Brownmillerite (SrFeO2.5; BM-SFO) thin films are epitaxially grown along the b-axis on both SrTiO3(001) and SrRuO3/SrTiO3(001) substrates, whereas growth along the a-axis is expected from conventional epitaxial strain effects originating from lattice mismatch with the substrates. Scanning transmission electron microscopy measurements and first principles calculations reveal that these peculiar growth characteristics of BM-SFO thin films originate from the heterointerfacial effects governed by their distinct interfacial structures. These include octahedral connectivity between dissimilar oxides containing different chemical species and a peculiar transition layer for BM-SFO/SrRuO3/SrTiO3(001) and BM-SFO/SrTiO3(001) heterostructures, respectively. These effects enable subtle control of the growth process of oxide thin films and could facilitate the fabrication of novel functional devices.
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Affiliation(s)
- Janghyun Jo
- Department of Materials Science and Engineering and Research Institute of Advanced Materials, Seoul National University, Seoul, 08826, Republic of Korea
| | - Venkata Raveendra Nallagatlla
- Department of Physics and Oxide Research Centre, Hankuk University of Foreign Studies, Yongin, 17035, Republic of Korea
| | - Susant Kumar Acharya
- Department of Physics and Oxide Research Centre, Hankuk University of Foreign Studies, Yongin, 17035, Republic of Korea
| | - Youngho Kang
- Department of Materials Science and Engineering and Research Institute of Advanced Materials, Seoul National University, Seoul, 08826, Republic of Korea
| | - Yoonkoo Kim
- Department of Materials Science and Engineering and Research Institute of Advanced Materials, Seoul National University, Seoul, 08826, Republic of Korea
| | - Sangmoon Yoon
- Department of Materials Science and Engineering and Research Institute of Advanced Materials, Seoul National University, Seoul, 08826, Republic of Korea
| | - Sangmin Lee
- Department of Materials Science and Engineering and Research Institute of Advanced Materials, Seoul National University, Seoul, 08826, Republic of Korea
| | - Hionsuck Baik
- Seoul Center, Korea Basic Science Institute, Seoul, 136-713, Republic of Korea
| | - Seungwu Han
- Department of Materials Science and Engineering and Research Institute of Advanced Materials, Seoul National University, Seoul, 08826, Republic of Korea
| | - Miyoung Kim
- Department of Materials Science and Engineering and Research Institute of Advanced Materials, Seoul National University, Seoul, 08826, Republic of Korea.
| | - Chang Uk Jung
- Department of Physics and Oxide Research Centre, Hankuk University of Foreign Studies, Yongin, 17035, Republic of Korea.
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14
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Jia L, Wan H, Liu X, Chen G, Zhang N, Li J, Zhou W, Cao Y, Ma R, Qiu G. Alternate Restacking of 2 D CoNi Hydroxide and Graphene Oxide Nanosheets for Energetic Oxygen Evolution. CHEMSUSCHEM 2019; 12:5274-5281. [PMID: 31680476 DOI: 10.1002/cssc.201902641] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 10/29/2019] [Indexed: 06/10/2023]
Abstract
Morphology and composition tuning of layered materials is evaluated to influence their electrochemical performance for energy storage and conversion applications. Layered Co1-x Nix hydroxides (x=0, 1/2, 1/3, 1/4, 1) of three different morphologies-nanocones, 2 D nanosheets obtained by the rapid exfoliation of nanoconical counterparts, and 2 D superlattice-like nanostructures alternately restacked by the oppositely charged hydroxide and graphene oxide (GO) nanosheets-have been systematically investigated for electrocatalytic oxygen oxidation. High activity is obtained with the 2 D Co2/3 Ni1/3 hydroxide nanosheets/GO superlattice (Co2/3 Ni1/3 NS-GO), achieving a current density of 10 mA cm-2 at a low overpotential of 259 mV accompanied by a small Tafel slope of 35.7 mV dec-1 , surpassing nanocones and 2 D nanosheets, as well as the congeneric heterostructured Co1-x Nix hydroxide nanosheets/GO nanoarchitectures (Co1-x Nix NS-GO; x=0, 1/2, 1/4, 1) and the commercial RuO2 electrocatalyst. The outstanding activity of Co2/3 Ni1/3 NS-GO superlattice uncovers the combined merits of 2 D superlattice-like structure and composition optimization for electrocatalysis, providing a strategy for developing high-performance electrochemical materials by rational morphology and composition design.
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Affiliation(s)
- Lulu Jia
- State Key Laboratory of Powder Metallurgy, School of Materials Science and Engineering, Central South University, Changsha, Hunan, 410083, P. R. China
| | - Hao Wan
- State Key Laboratory of Powder Metallurgy, School of Materials Science and Engineering, Central South University, Changsha, Hunan, 410083, P. R. China
| | - Xiaohe Liu
- State Key Laboratory of Powder Metallurgy, School of Materials Science and Engineering, Central South University, Changsha, Hunan, 410083, P. R. China
| | - Gen Chen
- State Key Laboratory of Powder Metallurgy, School of Materials Science and Engineering, Central South University, Changsha, Hunan, 410083, P. R. China
| | - Ning Zhang
- State Key Laboratory of Powder Metallurgy, School of Materials Science and Engineering, Central South University, Changsha, Hunan, 410083, P. R. China
| | - Junhui Li
- State Key Laboratory of Powder Metallurgy, School of Materials Science and Engineering, Central South University, Changsha, Hunan, 410083, P. R. China
| | - Wei Zhou
- Department of Applied Physics, Tianjin Key Laboratory of Low Dimensional Materials Physics and Preparing Technology, School of Science, Tianjin University, Tianjin, 300072, P. R. China
| | - Yijun Cao
- School of Chemical Engineering and Energy, Zhengzhou University, Zhengzhou, Henan, 450001, P. R. China
| | - Renzhi Ma
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), Namiki 1-1, Tsukuba, Ibaraki, 305-0044, Japan
| | - Guanzhou Qiu
- State Key Laboratory of Powder Metallurgy, School of Materials Science and Engineering, Central South University, Changsha, Hunan, 410083, P. R. China
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15
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Biswas A, Talha M, Kashir A, Jeong YH. A thin film perspective on quantum functional oxides. CURRENT APPLIED PHYSICS 2019; 19:207-214. [DOI: 10.1016/j.cap.2018.07.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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16
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Li T, Ye M, Sun Z, Zhang N, Zhang W, Inguva S, Xie C, Chen L, Wang Y, Ke S, Huang H. Origin of Ferroelectricity in Epitaxial Si-Doped HfO 2 Films. ACS APPLIED MATERIALS & INTERFACES 2019; 11:4139-4144. [PMID: 30618238 DOI: 10.1021/acsami.8b19558] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
HfO2-based unconventional ferroelectric materials were recently discovered and have attracted a great deal of attention in both academia and industry. The growth of epitaxial Si-doped HfO2 films has opened up a route to understand the mechanism of ferroelectricity. Here, we used pulsed laser deposition to grow epitaxial Si-doped HfO2 films in different orientations of N-type SrTiO3 substrates. Polar nanodomains can be written and read using piezoforce microscopy, and these domains are reversibly switched with a phase change of 180°. Films with different thicknesses displayed a coercive field Ec and a remnant polarization Pr of approximately 4-5 MV/cm and 8-32 μC/cm2, respectively. X-ray diffraction and high-resolution transmission electron microscopy (HRTEM) results identified that the as-grown Si-doped HfO2 films have strained fluorite structures. The ABAB stacking mode of the Hf atomic grid observed by HRTEM clearly demonstrates that the ferroelectricity originates from the noncentrosymmetric Pca21 polar structure. Combined with soft X-ray absorption spectra, the results showed that the Pca21 ferroelectric crystal structure manifested as an O sublattice distortion by the effect of the interface strain and Si dopant interactions, resulting in a nanoscaled ferroelectric ordered state because of further crystal splitting.
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Affiliation(s)
- Tao Li
- School of Materials Science and Engineering , Nanchang University , Nanchang 330031 , P. R. China
- Department of Applied Physics and Materials Research Center , The Hong Kong Polytechnic University , Hung Hom , Kowloon , Hong Kong , P. R. China
| | - Mao Ye
- Department of Physics , South University of Science and Technology of China , Shenzhen 518055 , P. R. China
| | | | - Nian Zhang
- Shanghai Institute of Microsystem and Information Technology , Chinese Academy of Sciences , Shanghai 200050 , P. R. China
| | | | - Saikumar Inguva
- College of Materials Science and Engineering , Shenzhen University , Shenzhen 518060 , P. R. China
| | | | - Lang Chen
- Department of Physics , South University of Science and Technology of China , Shenzhen 518055 , P. R. China
| | - Yu Wang
- School of Materials Science and Engineering , Nanchang University , Nanchang 330031 , P. R. China
| | - Shanming Ke
- School of Materials Science and Engineering , Nanchang University , Nanchang 330031 , P. R. China
| | - Haitao Huang
- Department of Applied Physics and Materials Research Center , The Hong Kong Polytechnic University , Hung Hom , Kowloon , Hong Kong , P. R. China
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17
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Ren Z, Wu M, Chen X, Li W, Li M, Wang F, Tian H, Chen J, Xie Y, Mai J, Li X, Lu X, Lu Y, Zhang H, Van Tendeloo G, Zhang Z, Han G. Electrostatic Force-Driven Oxide Heteroepitaxy for Interface Control. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1707017. [PMID: 30080288 DOI: 10.1002/adma.201707017] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 07/05/2018] [Indexed: 06/08/2023]
Abstract
Oxide heterostructure interfaces create a platform to induce intriguing electric and magnetic functionalities for possible future devices. A general approach to control growth and interface structure of oxide heterostructures will offer a great opportunity for understanding and manipulating the functionalities. Here, it is reported that an electrostatic force, originating from a polar ferroelectric surface, can be used to drive oxide heteroepitaxy, giving rise to an atomically sharp and coherent interface by using a low-temperature solution method. These heterostructures adopt a fascinating selective growth, and show a saturation thickness and the reconstructed interface with concentrated charges accumulation. The ferroelectric polarization screening, developing from a solid-liquid interface to the heterostructure interface, is decisive for the specific growth. At the interface, a charge transfer and accumulation take place for electrical compensation. The facile approach presented here can be extremely useful for controlling oxide heteroepitaxy and producing intriguing interface functionality via electrostatic engineering.
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Affiliation(s)
- 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
| | - Mengjiao Wu
- 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
| | - Xing Chen
- Center of Electron Microscope, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Wei 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
| | - 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
| | - Fang Wang
- 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
| | - He Tian
- Center of Electron Microscope, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Junze Chen
- School of Materials Science and Engineering, Nanyang Technological University, Block N4.1, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Yanwu Xie
- Department of Physics, Zhejiang University, Hangzhou, 310027, China
| | - Jiangquan Mai
- Department of Physics, Chinese University of Hong Kong, Hong Kong, 999077, 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
| | - Xinhui Lu
- Department of Physics, Chinese University of Hong Kong, Hong Kong, 999077, 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
| | - Hua Zhang
- School of Materials Science and Engineering, Nanyang Technological University, Block N4.1, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Gustaaf Van Tendeloo
- EMAT, University of Antwerp, B-2020, Antwerp, Belgium
- Nanostructure Research Center, Wuhan University of Technology, 430074, Wuhan, China
| | - Ze Zhang
- 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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18
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Guzzinati G, Altantzis T, Batuk M, De Backer A, Lumbeeck G, Samaee V, Batuk D, Idrissi H, Hadermann J, Van Aert S, Schryvers D, Verbeeck J, Bals S. Recent Advances in Transmission Electron Microscopy for Materials Science at the EMAT Lab of the University of Antwerp. MATERIALS (BASEL, SWITZERLAND) 2018; 11:E1304. [PMID: 30060556 PMCID: PMC6117696 DOI: 10.3390/ma11081304] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 07/25/2018] [Accepted: 07/26/2018] [Indexed: 01/13/2023]
Abstract
The rapid progress in materials science that enables the design of materials down to the nanoscale also demands characterization techniques able to analyze the materials down to the same scale, such as transmission electron microscopy. As Belgium's foremost electron microscopy group, among the largest in the world, EMAT is continuously contributing to the development of TEM techniques, such as high-resolution imaging, diffraction, electron tomography, and spectroscopies, with an emphasis on quantification and reproducibility, as well as employing TEM methodology at the highest level to solve real-world materials science problems. The lab's recent contributions are presented here together with specific case studies in order to highlight the usefulness of TEM to the advancement of materials science.
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Affiliation(s)
- Giulio Guzzinati
- EMAT, University of Antwerp, Groenenborgerlaan 171, Antwerp 2020, Belgium.
| | - Thomas Altantzis
- EMAT, University of Antwerp, Groenenborgerlaan 171, Antwerp 2020, Belgium.
| | - Maria Batuk
- EMAT, University of Antwerp, Groenenborgerlaan 171, Antwerp 2020, Belgium.
| | - Annick De Backer
- EMAT, University of Antwerp, Groenenborgerlaan 171, Antwerp 2020, Belgium.
| | - Gunnar Lumbeeck
- EMAT, University of Antwerp, Groenenborgerlaan 171, Antwerp 2020, Belgium.
| | - Vahid Samaee
- EMAT, University of Antwerp, Groenenborgerlaan 171, Antwerp 2020, Belgium.
| | - Dmitry Batuk
- EMAT, University of Antwerp, Groenenborgerlaan 171, Antwerp 2020, Belgium.
| | - Hosni Idrissi
- EMAT, University of Antwerp, Groenenborgerlaan 171, Antwerp 2020, Belgium.
- Institute of Mechanics, Materials and Civil Engineering, Université catholique de Louvain, Louvain-la-Neuve 1348, Belgium.
| | - Joke Hadermann
- EMAT, University of Antwerp, Groenenborgerlaan 171, Antwerp 2020, Belgium.
| | - Sandra Van Aert
- EMAT, University of Antwerp, Groenenborgerlaan 171, Antwerp 2020, Belgium.
| | | | - Johan Verbeeck
- EMAT, University of Antwerp, Groenenborgerlaan 171, Antwerp 2020, Belgium.
| | - Sara Bals
- EMAT, University of Antwerp, Groenenborgerlaan 171, Antwerp 2020, Belgium.
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19
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Abstract
We elucidate a facile method for the preparation of perovskite manganite nanotubes using a sacrificial template assisted pulsed laser deposition technique.
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Affiliation(s)
- Xiaofeng Wu
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry
- College of Chemistry
- Jilin University
- Changchun 130012
- P. R. China
| | - Keke Huang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry
- College of Chemistry
- Jilin University
- Changchun 130012
- P. R. China
| | - Long Yuan
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry
- College of Chemistry
- Jilin University
- Changchun 130012
- P. R. China
| | - Shouhua Feng
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry
- College of Chemistry
- Jilin University
- Changchun 130012
- P. R. China
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20
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Hirai K, Aso R, Ozaki Y, Kan D, Haruta M, Ichikawa N, Kurata H, Shimakawa Y. Melting of Oxygen Vacancy Order at Oxide-Heterostructure Interface. ACS APPLIED MATERIALS & INTERFACES 2017; 9:30143-30148. [PMID: 28791864 DOI: 10.1021/acsami.7b08134] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Modifications in oxygen coordination environments in heterostructures consisting of dissimilar oxides often emerge and lead to unusual properties of the constituent materials. Although lots of attention has been paid to slight modifications in the rigid oxygen octahedra of perovskite-based heterointerfaces, revealing the modification behaviors of the oxygen coordination environments in the heterostructures containing oxides with oxygen vacancies have been challenging. Here, we show that a significant modification in the oxygen coordination environments-melting of oxygen vacancy order-is induced at the heterointerface between SrFeO2.5 (SFO) and DyScO3 (DSO). When an oxygen-deficient perovskite (brownmillerite structure) SrFeO2.5 film grows epitaxially on a perovskite DyScO3 substrate, both FeO6 octahedra and FeO4 tetrahedra in the (101)-oriented SrFeO2.5 thin film connect to ScO6 octahedra in DyScO3. As a consequence of accommodating a structural mismatch, the alternately ordered arrangement of oxygen vacancies is significantly disturbed and reconstructed in the 2 nm thick heterointerface region. The stabilized heterointerface structure consists of Fe3+ octahedra with an oxygen vacancy disorder. The melting of the oxygen vacancy order, which in bulk SrFeO2.5 occurs at 1103 K, is induced at the present heterointerface at ambient temperatures.
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Affiliation(s)
- Kei Hirai
- Institute for Chemical Research, Kyoto University , Uji, Kyoto 611-0011, Japan
| | - Ryotaro Aso
- Institute for Chemical Research, Kyoto University , Uji, Kyoto 611-0011, Japan
| | - Yusuke Ozaki
- Institute for Chemical Research, Kyoto University , Uji, Kyoto 611-0011, Japan
| | - Daisuke Kan
- Institute for Chemical Research, Kyoto University , Uji, Kyoto 611-0011, Japan
| | - Mitsutaka Haruta
- Institute for Chemical Research, Kyoto University , Uji, Kyoto 611-0011, Japan
| | - Noriya Ichikawa
- Institute for Chemical Research, Kyoto University , Uji, Kyoto 611-0011, Japan
| | - Hiroki Kurata
- Institute for Chemical Research, Kyoto University , Uji, Kyoto 611-0011, Japan
| | - Yuichi Shimakawa
- Institute for Chemical Research, Kyoto University , Uji, Kyoto 611-0011, Japan
- Integrated Research Consortium on Chemical Sciences , Uji, Kyoto 611-0011, Japan
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21
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Fang W, Zhang C, Steinbach F, Feldhoff A. Stabilizing Perovskite Structure by Interdiffusional Tailoring and Its Application in Composite Mixed Oxygen-Ionic and Electronic Conductors. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201702786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Wei Fang
- Institute of Physical Chemistry and Electrochemistry; Leibniz University Hannover; Callinstrasse 3A 30167 Hannover Germany
| | - Chao Zhang
- Institute for Mineralogy; Leibniz University Hannover; Callinstrasse 3 30167 Hannover Germany
| | - Frank Steinbach
- Institute of Physical Chemistry and Electrochemistry; Leibniz University Hannover; Callinstrasse 3A 30167 Hannover Germany
| | - Armin Feldhoff
- Institute of Physical Chemistry and Electrochemistry; Leibniz University Hannover; Callinstrasse 3A 30167 Hannover Germany
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22
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Fang W, Zhang C, Steinbach F, Feldhoff A. Stabilizing Perovskite Structure by Interdiffusional Tailoring and Its Application in Composite Mixed Oxygen-Ionic and Electronic Conductors. Angew Chem Int Ed Engl 2017; 56:7584-7588. [DOI: 10.1002/anie.201702786] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Indexed: 11/09/2022]
Affiliation(s)
- Wei Fang
- Institute of Physical Chemistry and Electrochemistry; Leibniz University Hannover; Callinstrasse 3A 30167 Hannover Germany
| | - Chao Zhang
- Institute for Mineralogy; Leibniz University Hannover; Callinstrasse 3 30167 Hannover Germany
| | - Frank Steinbach
- Institute of Physical Chemistry and Electrochemistry; Leibniz University Hannover; Callinstrasse 3A 30167 Hannover Germany
| | - Armin Feldhoff
- Institute of Physical Chemistry and Electrochemistry; Leibniz University Hannover; Callinstrasse 3A 30167 Hannover Germany
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23
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Young J, Moon EJ, Mukherjee D, Stone G, Gopalan V, Alem N, May SJ, Rondinelli JM. Polar Oxides without Inversion Symmetry through Vacancy and Chemical Order. J Am Chem Soc 2017; 139:2833-2841. [DOI: 10.1021/jacs.6b10697] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Joshua Young
- Department
of Materials Science and Engineering, Drexel University, Philadelphia, Pennsylvania 19104, United States
- Department
of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Eun Ju Moon
- Department
of Materials Science and Engineering, Drexel University, Philadelphia, Pennsylvania 19104, United States
| | - Debangshu Mukherjee
- Department
of Materials Science and Engineering, Pennsylvania State University, University
Park, Pennsylvania 16802, United States
| | - Greg Stone
- Department
of Materials Science and Engineering, Pennsylvania State University, University
Park, Pennsylvania 16802, United States
| | - Venkatraman Gopalan
- Department
of Materials Science and Engineering, Pennsylvania State University, University
Park, Pennsylvania 16802, United States
| | - Nasim Alem
- Department
of Materials Science and Engineering, Pennsylvania State University, University
Park, Pennsylvania 16802, United States
| | - Steven J. May
- Department
of Materials Science and Engineering, Drexel University, Philadelphia, Pennsylvania 19104, United States
| | - James M. Rondinelli
- Department
of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
- Materials
Science Division, Argonne National Laboratory, Argonne, Illinois 60439, United States
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24
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Sun C, Xue D. Crystal growth: an anisotropic mass transfer process at the interface. Phys Chem Chem Phys 2017; 19:12407-12413. [DOI: 10.1039/c7cp01112a] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Mass transfer of growth units towards the interface promotes crystal growth, and the driving force essentially depends on anisotropic chemical bonding architectures.
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Affiliation(s)
- Congting Sun
- State Key Laboratory of Rare Earth Resource Utilization
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
| | - Dongfeng Xue
- State Key Laboratory of Rare Earth Resource Utilization
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
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25
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Lin M, Yu X, Yang X, Li K, Ge M, Li J. Highly active and stable interface derived from Pt supported on Ni/Fe layered double oxides for HCHO oxidation. Catal Sci Technol 2017. [DOI: 10.1039/c7cy00154a] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
In this work, Ni/Fe layered double oxide supported Pt nanoparticles (Pt/LDO(N)) were prepared using a hydrothermal and colloid-impregnation method. The catalyst exhibited remarkable HCHO oxidation ability and long-time stability.
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Affiliation(s)
- Mengya Lin
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species
- Beijing National Laboratory for Molecular Sciences (BNLMS)
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Xiaolin Yu
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species
- Beijing National Laboratory for Molecular Sciences (BNLMS)
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Xueqin Yang
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species
- Beijing National Laboratory for Molecular Sciences (BNLMS)
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Kezhi Li
- State Key Joint Laboratory of Environment Simulation and Pollution Control
- School of Environment
- Tsinghua University
- Beijing
- P. R. China
| | - Maofa Ge
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species
- Beijing National Laboratory for Molecular Sciences (BNLMS)
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Junhua Li
- State Key Joint Laboratory of Environment Simulation and Pollution Control
- School of Environment
- Tsinghua University
- Beijing
- P. R. China
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26
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Poeppelmeier KR, Rondinelli JM. Oxide interfaces: Mismatched lattices patched up. Nat Chem 2016; 8:292-4. [PMID: 27001722 DOI: 10.1038/nchem.2477] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - James M Rondinelli
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, USA
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27
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Matsubu JC, Lin ET, Gunther KL, Bozhilov KN, Jiang Y, Christopher P. Critical role of interfacial effects on the reactivity of semiconductor-cocatalyst junctions for photocatalytic oxygen evolution from water. Catal Sci Technol 2016. [DOI: 10.1039/c6cy00548a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Photocatalytic water splitting has the potential to provide a sustainable approach for storing the energy of solar photons in the form of chemical bonds.
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Affiliation(s)
- John C. Matsubu
- Department of Chemical & Environmental Engineering
- University of California
- Riverside
- USA
| | - Eric T. Lin
- Department of Chemical & Environmental Engineering
- University of California
- Riverside
- USA
| | - Kyle L. Gunther
- Department of Chemical & Environmental Engineering
- University of California
- Riverside
- USA
| | - Krassimir N. Bozhilov
- Central Facility for Advanced Microscopy and Microanalysis
- University of California
- Riverside
- USA
| | - Yibo Jiang
- Department of Chemical & Environmental Engineering
- University of California
- Riverside
- USA
| | - Phillip Christopher
- Department of Chemical & Environmental Engineering
- University of California
- Riverside
- USA
- Program in Materials Science
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