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Yuan Y, Patel RK, Banik S, Reta TB, Bisht RS, Fong DD, Sankaranarayanan SKRS, Ramanathan S. Proton Conducting Neuromorphic Materials and Devices. Chem Rev 2024. [PMID: 39038231 DOI: 10.1021/acs.chemrev.4c00071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/24/2024]
Abstract
Neuromorphic computing and artificial intelligence hardware generally aims to emulate features found in biological neural circuit components and to enable the development of energy-efficient machines. In the biological brain, ionic currents and temporal concentration gradients control information flow and storage. It is therefore of interest to examine materials and devices for neuromorphic computing wherein ionic and electronic currents can propagate. Protons being mobile under an external electric field offers a compelling avenue for facilitating biological functionalities in artificial synapses and neurons. In this review, we first highlight the interesting biological analog of protons as neurotransmitters in various animals. We then discuss the experimental approaches and mechanisms of proton doping in various classes of inorganic and organic proton-conducting materials for the advancement of neuromorphic architectures. Since hydrogen is among the lightest of elements, characterization in a solid matrix requires advanced techniques. We review powerful synchrotron-based spectroscopic techniques for characterizing hydrogen doping in various materials as well as complementary scattering techniques to detect hydrogen. First-principles calculations are then discussed as they help provide an understanding of proton migration and electronic structure modification. Outstanding scientific challenges to further our understanding of proton doping and its use in emerging neuromorphic electronics are pointed out.
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Affiliation(s)
- Yifan Yuan
- Department of Electrical & Computer Engineering, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States
| | - Ranjan Kumar Patel
- Department of Electrical & Computer Engineering, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States
| | - Suvo Banik
- Department of Mechanical and Industrial Engineering, University of Illinois, Chicago, Illinois 60607, United States
- Center for Nanoscale Materials, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Tadesse Billo Reta
- Materials Science Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Ravindra Singh Bisht
- Department of Electrical & Computer Engineering, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States
| | - Dillon D Fong
- Materials Science Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Subramanian K R S Sankaranarayanan
- Department of Mechanical and Industrial Engineering, University of Illinois, Chicago, Illinois 60607, United States
- Center for Nanoscale Materials, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Shriram Ramanathan
- Department of Electrical & Computer Engineering, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States
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2
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Zhao X, Li J, Dong K, Wu J. Switchable and Tunable Radiative Cooling: Mechanisms, Applications, and Perspectives. ACS NANO 2024; 18:18118-18128. [PMID: 38951984 DOI: 10.1021/acsnano.4c05929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/03/2024]
Abstract
The cost of annual energy consumption in buildings in the United States exceeds 430 billion dollars ( Science 2019, 364 (6442), 760-763), of which about 48% is used for space thermal management (https://www.iea.org/reports/global-status-report-for-buildings-and-construction-2019), revealing the urgent need for efficient thermal management of buildings and dwellings. Radiative cooling technologies, combined with the booming photonic and microfabrication technologies ( Nature 2014, 515 (7528), 540-544), enable energy-free cooling by radiative heat transfer to outer space through the atmospheric transparent window ( Nat. Commun. 2024, 15 (1), 815). To pursue all-season energy savings in climates with large temperature variations, switchable and tunable radiative coolers (STRC) have emerged in recent years and quickly gained broad attention. This Perspective introduces the existing STRC technologies and analyzes their benefits and challenges in future large-scale applications, suggesting ways for the development of future STRCs.
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Affiliation(s)
- Xuzhe Zhao
- Tsinghua-Berkeley Shenzhen Institute, Institute of Data and Information, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, Guangdong 518055, China
- Center of Double Helix, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, Guangdong 518055, China
| | - Jiachen Li
- Department of Materials Science and Engineering, University of California, Berkeley, California 94720, United States
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Kaichen Dong
- Tsinghua-Berkeley Shenzhen Institute, Institute of Data and Information, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, Guangdong 518055, China
- Center of Double Helix, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, Guangdong 518055, China
| | - Junqiao Wu
- Department of Materials Science and Engineering, University of California, Berkeley, California 94720, United States
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
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3
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Cai Y, Wang Z, Wan J, Li J, Guo R, Ager JW, Javey A, Zheng H, Jiang J, Wu J. Ion diffusion retarded by diverging chemical susceptibility. Nat Commun 2024; 15:5814. [PMID: 38987527 PMCID: PMC11237041 DOI: 10.1038/s41467-024-50213-3] [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: 07/03/2024] [Indexed: 07/12/2024] Open
Abstract
For first-order phase transitions, the second derivatives of Gibbs free energy (specific heat and compressibility) diverge at the transition point, resulting in an effect known as super-elasticity along the pressure axis, or super-thermicity along the temperature axis. Here we report a chemical analogy of these singularity effects along the atomic doping axis, where the second derivative of Gibbs free energy (chemical susceptibility) diverges at the transition point, leading to an anomalously high energy barrier for dopant diffusion in co-existing phases, an effect we coin as super-susceptibility. The effect is realized in hydrogen diffusion in vanadium dioxide (VO2) with a metal-insulator transition (MIT). We show that hydrogen faces three times higher energy barrier and over one order of magnitude lower diffusivity when it diffuses across a metal-insulator domain wall in VO2. The additional energy barrier is attributed to a volumetric energy penalty that the diffusers need to pay for the reduction of latent heat. The super-susceptibility and resultant retarded atomic diffusion are expected to exist universally in all phase transformations where the transformation temperature is coupled to chemical composition, and inspires new ways to engineer dopant diffusion in phase-coexisting material systems.
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Affiliation(s)
- Yuhang Cai
- Department of Materials Science and Engineering, University of California, Berkeley, Berkeley, CA, 94720, USA
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Zhaowu Wang
- School of Science, Hebei University of Technology, Tianjin, 300401, China
- National Laboratory of Solid State Microstructures, Nanjing University, Nanjing, 210093, China
| | - Jiawei Wan
- Department of Materials Science and Engineering, University of California, Berkeley, Berkeley, CA, 94720, USA
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Jiachen Li
- Department of Materials Science and Engineering, University of California, Berkeley, Berkeley, CA, 94720, USA
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Ruihan Guo
- Department of Materials Science and Engineering, University of California, Berkeley, Berkeley, CA, 94720, USA
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Joel W Ager
- Department of Materials Science and Engineering, University of California, Berkeley, Berkeley, CA, 94720, USA
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Ali Javey
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
- Department of Electrical Engineering and Computer Science, University of California, Berkeley, Berkeley, CA, 94720, USA
| | - Haimei Zheng
- Department of Materials Science and Engineering, University of California, Berkeley, Berkeley, CA, 94720, USA
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Jun Jiang
- Key Laboratory of Precision and Intelligent Chemistry, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, 230026, Anhui, China
| | - Junqiao Wu
- Department of Materials Science and Engineering, University of California, Berkeley, Berkeley, CA, 94720, USA.
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA.
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Deng X, Liu YX, Yang ZZ, Zhao YF, Xu YT, Fu MY, Shen Y, Qu K, Guan Z, Tong WY, Zhang YY, Chen BB, Zhong N, Xiang PH, Duan CG. Spatial evolution of the proton-coupled Mott transition in correlated oxides for neuromorphic computing. SCIENCE ADVANCES 2024; 10:eadk9928. [PMID: 38820158 PMCID: PMC11141630 DOI: 10.1126/sciadv.adk9928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Accepted: 04/29/2024] [Indexed: 06/02/2024]
Abstract
The proton-electron coupling effect induces rich spectrums of electronic states in correlated oxides, opening tempting opportunities for exploring novel devices with multifunctions. Here, via modest Pt-aided hydrogen spillover at room temperature, amounts of protons are introduced into SmNiO3-based devices. In situ structural characterizations together with first-principles calculation reveal that the local Mott transition is reversibly driven by migration and redistribution of the predoped protons. The accompanying giant resistance change results in excellent memristive behaviors under ultralow electric fields. Hierarchical tree-like memory states, an instinct displayed in bio-synapses, are further realized in the devices by spatially varying the proton concentration with electric pulses, showing great promise in artificial neural networks for solving intricate problems. Our research demonstrates the direct and effective control of proton evolution using extremely low electric field, offering an alternative pathway for modifying the functionalities of correlated oxides and constructing low-power consumption intelligent devices and neural network circuits.
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Affiliation(s)
- Xing Deng
- Key Laboratory of Polar Materials and Devices (Ministry of Education), Shanghai Center of Brain-Inspired Intelligent Materials and Devices, Department of Electronics, East China Normal University, Shanghai 200241, China
| | - Yu-Xiang Liu
- Key Laboratory of Polar Materials and Devices (Ministry of Education), Shanghai Center of Brain-Inspired Intelligent Materials and Devices, Department of Electronics, East China Normal University, Shanghai 200241, China
| | - Zhen-Zhong Yang
- Key Laboratory of Polar Materials and Devices (Ministry of Education), Shanghai Center of Brain-Inspired Intelligent Materials and Devices, Department of Electronics, East China Normal University, Shanghai 200241, China
| | - Yi-Feng Zhao
- Key Laboratory of Polar Materials and Devices (Ministry of Education), Shanghai Center of Brain-Inspired Intelligent Materials and Devices, Department of Electronics, East China Normal University, Shanghai 200241, China
| | - Ya-Ting Xu
- Key Laboratory of Polar Materials and Devices (Ministry of Education), Shanghai Center of Brain-Inspired Intelligent Materials and Devices, Department of Electronics, East China Normal University, Shanghai 200241, China
| | - Meng-Yao Fu
- Key Laboratory of Polar Materials and Devices (Ministry of Education), Shanghai Center of Brain-Inspired Intelligent Materials and Devices, Department of Electronics, East China Normal University, Shanghai 200241, China
| | - Yu Shen
- Key Laboratory of Polar Materials and Devices (Ministry of Education), Shanghai Center of Brain-Inspired Intelligent Materials and Devices, Department of Electronics, East China Normal University, Shanghai 200241, China
| | - Ke Qu
- Key Laboratory of Polar Materials and Devices (Ministry of Education), Shanghai Center of Brain-Inspired Intelligent Materials and Devices, Department of Electronics, East China Normal University, Shanghai 200241, China
| | - Zhao Guan
- Key Laboratory of Polar Materials and Devices (Ministry of Education), Shanghai Center of Brain-Inspired Intelligent Materials and Devices, Department of Electronics, East China Normal University, Shanghai 200241, China
| | - Wen-Yi Tong
- Key Laboratory of Polar Materials and Devices (Ministry of Education), Shanghai Center of Brain-Inspired Intelligent Materials and Devices, Department of Electronics, East China Normal University, Shanghai 200241, China
| | - Yuan-Yuan Zhang
- Key Laboratory of Polar Materials and Devices (Ministry of Education), Shanghai Center of Brain-Inspired Intelligent Materials and Devices, Department of Electronics, East China Normal University, Shanghai 200241, China
| | - Bin-Bin Chen
- Key Laboratory of Polar Materials and Devices (Ministry of Education), Shanghai Center of Brain-Inspired Intelligent Materials and Devices, Department of Electronics, East China Normal University, Shanghai 200241, China
| | - Ni Zhong
- Key Laboratory of Polar Materials and Devices (Ministry of Education), Shanghai Center of Brain-Inspired Intelligent Materials and Devices, Department of Electronics, East China Normal University, Shanghai 200241, China
- Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi 030006, China
| | - Ping-Hua Xiang
- Key Laboratory of Polar Materials and Devices (Ministry of Education), Shanghai Center of Brain-Inspired Intelligent Materials and Devices, Department of Electronics, East China Normal University, Shanghai 200241, China
- Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi 030006, China
| | - Chun-Gang Duan
- Key Laboratory of Polar Materials and Devices (Ministry of Education), Shanghai Center of Brain-Inspired Intelligent Materials and Devices, Department of Electronics, East China Normal University, Shanghai 200241, China
- Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi 030006, China
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Zhou T, Li L, Wang Y, Zhao S, Liu M, Zhu J, Li W, Lin Z, Li J, Sun B, Huang Q, Zhang G, Zou C. Multifield-Modulated Spintronic Terahertz Emitter Based on a Vanadium Dioxide Phase Transition. ACS APPLIED MATERIALS & INTERFACES 2024; 16:13997-14005. [PMID: 38447142 DOI: 10.1021/acsami.3c19488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/08/2024]
Abstract
The efficient generation and active modulation of terahertz (THz) waves are strongly required for the development of various THz applications such as THz imaging/spectroscopy and THz communication. In addition, due to the increasing degree of integration for the THz optoelectronic devices, miniaturizing the complex THz system into a compact unit is also important and necessary. Today, integrating the THz source with the modulator to develop a powerful, easy-to-adjust, and scalable or on-chip THz emitter is still a challenge. As a new type of THz emitter, a spintronic THz emitter has attracted a great deal of attention due to its advantages of high efficiency, ultrawide band, low cost, and easy integration. In this study, we have proposed a multifield-modulated spintronic THz emitter based on the VO2/Ni/Pt multilayer film structure with a wide band region of 0-3 THz. Because of the pronounced phase transition of the integrated VO2 layer, the fabricated THz emitter can be efficiently modulated via thermal or electric stimuli with a modulation depth of about one order of magnitude; the modulation depths under thermal stimulation and electrical stimulation were 91.8% and 97.3%, respectively. It is believed that this multifield modulated spintronic THz emitter will provide various possibilities for the integration of next-generation on-chip THz sources and THz modulators.
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Affiliation(s)
- Ting Zhou
- National Synchrotron Radiation Laboratory, School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230029, P. R. China
| | - Liang Li
- National Synchrotron Radiation Laboratory, School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230029, P. R. China
| | - Yangkai Wang
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Shanguang Zhao
- National Synchrotron Radiation Laboratory, School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230029, P. R. China
| | - Meiling Liu
- National Synchrotron Radiation Laboratory, School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230029, P. R. China
| | - Jinglin Zhu
- National Synchrotron Radiation Laboratory, School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230029, P. R. China
| | - Weiwei Li
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Zhihan Lin
- National Synchrotron Radiation Laboratory, School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230029, P. R. China
| | - Jianjun Li
- National Synchrotron Radiation Laboratory, School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230029, P. R. China
| | - Bowen Sun
- National Synchrotron Radiation Laboratory, School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230029, P. R. China
| | - Qiuping Huang
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Guobin Zhang
- National Synchrotron Radiation Laboratory, School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230029, P. R. China
- Anhui Laboratory of Advanced Photon Science and Technology, University of Science and Technology of China, Hefei, Anhui 230029, P. R. China
| | - Chongwen Zou
- National Synchrotron Radiation Laboratory, School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230029, P. R. China
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Wang Q, Gu Y, Chen C, Han L, Fayaz MU, Pan F, Song C. Strain-Induced Uphill Hydrogen Distribution in Perovskite Oxide Films. ACS APPLIED MATERIALS & INTERFACES 2024; 16:3726-3734. [PMID: 38197268 DOI: 10.1021/acsami.3c17472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2024]
Abstract
Incorporating hydrogen into transition-metal oxides (TMOs) provides a facile and powerful way to manipulate the performances of TMOs, and thus numerous efforts have been invested in developing hydrogenation methods and exploring the property modulation via hydrogen doping. However, the distribution of hydrogen ions, which is a key factor in determining the physicochemical properties on a microscopic scale, has not been clearly illustrated. Here, focusing on prototypical perovskite oxide (NdNiO3 and La0.67Sr0.33MnO3) epitaxial films, we find that hydrogen distribution exhibits an anomalous "uphill" feature (against the concentration gradient) under tensile strain, namely, the proton concentration enhances upon getting farther from the hydrogen source. Distinctly, under a compressive strain state, hydrogen shows a normal distribution without uphill features. The epitaxial strain significantly influences the chemical lattice coupling and the energy profile as a function of the hydrogen doping position, thus dominating the hydrogen distribution. Furthermore, the strain-(H+) distribution relationship is maintained in different hydrogenation methods (metal-alkali treatment) which is first applied to perovskite oxides. The discovery of strain-dependent hydrogen distribution in oxides provides insights into tailoring the magnetoelectric and energy-conversion functionalities of TMOs via strain engineering.
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Affiliation(s)
- Qian Wang
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Youdi Gu
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Chong Chen
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Lei Han
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Muhammad Umer Fayaz
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Feng Pan
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Cheng Song
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
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7
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Fayaz MU, Wang Q, Liang S, Han L, Pan F, Song C. Protonation-Induced Colossal Lattice Expansion in La 2/3Sr 1/3MnO 3. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 38016071 DOI: 10.1021/acsami.3c14270] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2023]
Abstract
Ion injection controlled by an electric field is a powerful method to manipulate the diverse physical and chemical properties of metal oxides. However, the dynamic control of ion concentrations and their correlations with lattices in perovskite systems have not been fully understood. In this study, we systematically demonstrate the electric-field-controlled protonation of La2/3Sr1/3MnO3 (LSMO) films. The rapid and room-temperature protonation induces a colossal lattice expansion of 9.35% in tensile-strained LSMO, which is crucial for tailoring material properties and enabling a wide range of applications in advanced electronics, energy storage, and sensing technologies. This large expansion in the lattice is attributed to the higher degree of proton diffusion, resulting in a significant elongation in the Mn-O bond and octahedral tilting, which is supported by results from density functional theory calculations. Interestingly, such a colossal expansion is not observed in LSMO under compressive strain, indicating the close dependence of ion-electron-lattice coupling on strain states. These efficient modulations of the lattice and magnetoelectric functionalities of LSMO via proton diffusion offer a promising avenue for developing multifunctional iontronic devices.
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Affiliation(s)
- Muhammad Umer Fayaz
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Qian Wang
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Shixuan Liang
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Lei Han
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Feng Pan
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Cheng Song
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
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8
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Li Z, Zhang Z, Zhou X. Chemical Modulation of Metal-Insulator Transition toward Multifunctional Applications in Vanadium Dioxide Nanostructures. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2305234. [PMID: 37394705 DOI: 10.1002/smll.202305234] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Indexed: 07/04/2023]
Abstract
The metal-insulator transition (MIT) of vanadium dioxide (VO2 ) has been of great interest in materials science for both fundamental understanding of strongly correlated physics and a wide range of applications in optics, thermotics, spintronics, and electronics. Due to the merits of chemical interaction with accessibility, versatility, and tunability, chemical modification provides a new perspective to regulate the MIT of VO2 , endowing VO2 with exciting properties and improved functionalities. In the past few years, plenty of efforts have been devoted to exploring innovative chemical approaches for the synthesis and MIT modulation of VO2 nanostructures, greatly contributing to the understanding of electronic correlations and development of MIT-driven functionalities. Here, this comprehensive review summarizes the recent achievements in chemical synthesis of VO2 and its MIT modulation involving hydrogen incorporation, composition engineering, surface modification, and electrochemical gating. The newly appearing phenomena, mechanism of electronic correlation, and structural instability are discussed. Furthermore, progresses related to MIT-driven applications are presented, such as the smart window, optoelectronic detector, thermal microactuator, thermal radiation coating, spintronic device, memristive, and neuromorphic device. Finally, the challenges and prospects in future research of chemical modulation and functional applications of VO2 MIT are also provided.
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Affiliation(s)
- Zejun Li
- School of Physics, Frontiers Science Center for Mobile Information Communication and Security, Southeast University, Nanjing, 211189, China
- Purple Mountain Laboratories, Nanjing, 211111, China
| | - Zhi Zhang
- School of Physics, Frontiers Science Center for Mobile Information Communication and Security, Southeast University, Nanjing, 211189, China
| | - Xiaoli Zhou
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
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9
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Li L, Hu M, Hu C, Li B, Zhao S, Zhou T, Zhu J, Liu M, Li L, Jiang J, Zou C. Ultrahigh Effective Diffusion in Oxide by Engineering the Interfacial Transporter Channels. NANO LETTERS 2023; 23:7297-7302. [PMID: 37104700 DOI: 10.1021/acs.nanolett.3c01139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Mass storage and removal in solids always play a vital role in technological applications such as modern batteries and neuronal computations. However, they were kinetically limited by the slow diffusional process in the lattice, which made it challenging to fabricate applicable conductors with high electronic and ionic conductivities at room temperature. Here, we proposed an acid solution/WO3/ITO sandwich structure and achieved ultrafast H transport in the WO3 layer by interfacial job-sharing diffusion, which means the spatially separated transport of the H+ and e- in different layers. From the color change of WO3, the effective diffusion coefficient (Deff) was estimated, dramatically increasing ≤106 times and overwhelming values from previous reports. The experiments and simulations also revealed the universality of extending this approach to other atoms and oxides, which could stimulate systematic studies of ultrafast mixed conductors in the future.
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Affiliation(s)
- Liang Li
- National Synchrotron Radiation Laboratory, School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230029, P. R. China
| | - Min Hu
- Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Chemistry for Energy Materials, CAS Center for Excellence in Nanoscience, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Changlong Hu
- National Synchrotron Radiation Laboratory, School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230029, P. R. China
| | - Bowen Li
- National Synchrotron Radiation Laboratory, School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230029, P. R. China
| | - Shanguang Zhao
- National Synchrotron Radiation Laboratory, School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230029, P. R. China
| | - Ting Zhou
- National Synchrotron Radiation Laboratory, School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230029, P. R. China
| | - Jinglin Zhu
- National Synchrotron Radiation Laboratory, School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230029, P. R. China
| | - Meiling Liu
- National Synchrotron Radiation Laboratory, School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230029, P. R. China
| | - Liangbin Li
- National Synchrotron Radiation Laboratory, School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230029, P. R. China
| | - Jun Jiang
- Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Chemistry for Energy Materials, CAS Center for Excellence in Nanoscience, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Chongwen Zou
- National Synchrotron Radiation Laboratory, School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230029, P. R. China
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Yoon J, Hong WK, Kim Y, Park SY. Nanostructured Vanadium Dioxide Materials for Optical Sensing Applications. SENSORS (BASEL, SWITZERLAND) 2023; 23:6715. [PMID: 37571499 PMCID: PMC10422301 DOI: 10.3390/s23156715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 07/21/2023] [Accepted: 07/23/2023] [Indexed: 08/13/2023]
Abstract
Vanadium dioxide (VO2) is one of the strongly correlated materials exhibiting a reversible insulator-metal phase transition accompanied by a structural transition from a low-temperature monoclinic phase to high-temperature rutile phase near room temperature. Due to the dramatic change in electrical resistance and optical transmittance of VO2, it has attracted considerable attention towards the electronic and optical device applications, such as switching devices, memory devices, memristors, smart windows, sensors, actuators, etc. The present review provides an overview of several methods for the synthesis of nanostructured VO2, such as solution-based chemical approaches (sol-gel process and hydrothermal synthesis) and gas or vapor phase synthesis techniques (pulsed laser deposition, sputtering method, and chemical vapor deposition). This review also presents stoichiometry, strain, and doping engineering as modulation strategies of physical properties for nanostructured VO2. In particular, this review describes ultraviolet-visible-near infrared photodetectors, optical switches, and color modulators as optical sensing applications associated with nanostructured VO2 materials. Finally, current research trends and perspectives are also discussed.
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Affiliation(s)
- Jongwon Yoon
- Department of Energy & Electronic Materials, Surface & Nano Materials Division, Korea Institute of Materials Science, Changwon 51508, Republic of Korea;
| | - Woong-Ki Hong
- Center for Scientific Instrumentation, Korea Basic Science Institute, Daejeon 34133, Republic of Korea;
| | - Yonghun Kim
- Department of Energy & Electronic Materials, Surface & Nano Materials Division, Korea Institute of Materials Science, Changwon 51508, Republic of Korea;
| | - Seung-Young Park
- Center for Scientific Instrumentation, Korea Basic Science Institute, Daejeon 34133, Republic of Korea;
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11
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Deng S, Yu H, Park TJ, Islam AN, Manna S, Pofelski A, Wang Q, Zhu Y, Sankaranarayanan SK, Sengupta A, Ramanathan S. Selective area doping for Mott neuromorphic electronics. SCIENCE ADVANCES 2023; 9:eade4838. [PMID: 36930716 PMCID: PMC10022892 DOI: 10.1126/sciadv.ade4838] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 02/16/2023] [Indexed: 06/18/2023]
Abstract
The cointegration of artificial neuronal and synaptic devices with homotypic materials and structures can greatly simplify the fabrication of neuromorphic hardware. We demonstrate experimental realization of vanadium dioxide (VO2) artificial neurons and synapses on the same substrate through selective area carrier doping. By locally configuring pairs of catalytic and inert electrodes that enable nanoscale control over carrier density, volatility or nonvolatility can be appropriately assigned to each two-terminal Mott memory device per lithographic design, and both neuron- and synapse-like devices are successfully integrated on a single chip. Feedforward excitation and inhibition neural motifs are demonstrated at hardware level, followed by simulation of network-level handwritten digit and fashion product recognition tasks with experimental characteristics. Spatially selective electron doping opens up previously unidentified avenues for integration of emerging correlated semiconductors in electronic device technologies.
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Affiliation(s)
- Sunbin Deng
- School of Materials Engineering, Purdue University, West Lafayette, IN 47907, USA
| | - Haoming Yu
- School of Materials Engineering, Purdue University, West Lafayette, IN 47907, USA
| | - Tae Joon Park
- School of Materials Engineering, Purdue University, West Lafayette, IN 47907, USA
| | - A. N. M. Nafiul Islam
- School of Electrical Engineering and Computer Science, The Pennsylvania State University, University Park, PA 16802, USA
| | - Sukriti Manna
- Center for Nanoscale Materials, Argonne National Laboratory, Lemont, IL 60439, USA
- Department of Mechanical and Industrial Engineering, University of Illinois, Chicago, IL 60607, USA
| | - Alexandre Pofelski
- Department of Condensed Matter Physics and Materials Science, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Qi Wang
- School of Materials Engineering, Purdue University, West Lafayette, IN 47907, USA
| | - Yimei Zhu
- Department of Condensed Matter Physics and Materials Science, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Subramanian K. R. S. Sankaranarayanan
- Center for Nanoscale Materials, Argonne National Laboratory, Lemont, IL 60439, USA
- Department of Mechanical and Industrial Engineering, University of Illinois, Chicago, IL 60607, USA
| | - Abhronil Sengupta
- School of Electrical Engineering and Computer Science, The Pennsylvania State University, University Park, PA 16802, USA
| | - Shriram Ramanathan
- School of Materials Engineering, Purdue University, West Lafayette, IN 47907, USA
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12
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Nishikubo R, Kuwahara Y, Naito S, Kusu K, Saeki A. Elucidation of a Photothermal Energy Conversion Mechanism in Hydrogenated Molybdenum Suboxide: Interplay of Trapped Charges and Their Dielectric Interactions. J Phys Chem Lett 2023; 14:1528-1534. [PMID: 36745105 DOI: 10.1021/acs.jpclett.3c00080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Hydrogenated molybdenum suboxide (HxMoO3-y) is a promising photothermal energy conversion (PEC) material. However, its charge carrier dynamics and underlying mechanisms remain unclear. Utilizing flash-photolysis time-resolved microwave conductivity, we investigated charge carrier-dielectric interactions in the Pt/HxMoO3-y composite. The charge recombination of H2-reduced Pt/HxMoO3-y was 2-3 orders of magnitude faster than that of Pt/MoO3, indicating efficient PEC. A complex photoconductivity study revealed that Pt/HxMoO3-y has two types of trapping mechanisms, Drude-Zener (DZ) and negative permittivity effect (NPE) modes, depending on the reduction temperature. Pt/HxMoO3-y reduced at 100 °C exhibited a dominant NPE owing to the electrical interaction of trapped charges with the surrounding ions and/or OH base. This polaronic trapped state retarded the PEC process. We found Pt/HxMoO3-y reduced at 200 °C to be optimal owing to the balanced suppression of the NPE and charge diffusion. This is the first report revealing the charge dynamics in hydrogenated metal oxides and their impacts on PEC processes.
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Affiliation(s)
- Ryosuke Nishikubo
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka565-0871, Japan
- Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University, 1-1 Yamadaoka, Suita, Osaka565-0871, Japan
| | - Yasutaka Kuwahara
- Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University, 1-1 Yamadaoka, Suita, Osaka565-0871, Japan
- Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka565-0871, Japan
- Japan Science and Technology Agency (JST), PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama332-0012, Japan
| | - Shintaro Naito
- Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka565-0871, Japan
| | - Kazuki Kusu
- Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka565-0871, Japan
| | - Akinori Saeki
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka565-0871, Japan
- Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University, 1-1 Yamadaoka, Suita, Osaka565-0871, Japan
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13
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Schreiber E, Brennessel WW, Matson EM. Regioselectivity of concerted proton-electron transfer at the surface of a polyoxovanadate cluster. Chem Sci 2023; 14:1386-1396. [PMID: 36794190 PMCID: PMC9906639 DOI: 10.1039/d2sc05928b] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 12/19/2022] [Indexed: 01/19/2023] Open
Abstract
Proton-coupled electron transfer (PCET) is an important process in the activation and reactivity of metal oxide surfaces. In this work, we study the electronic structure of a reduced polyoxovanadate-alkoxide cluster bearing a single bridging oxide moiety. The structural and electronic implications of the incorporation of bridging oxide sites are revealed, most notably resulting in the quenching of cluster-wide electron delocalization in the most reduced state of the molecule. We correlate this attribute to a change in regioselectivity of PCET to the cluster surface (e.g. reactivity at terminal vs. bridging oxide groups). Reactivity localized at the bridging oxide site enables reversible storage of a single H-atom equivalent, changing the stoichiometry of PCET from a 2e-/2H+ process. Kinetic investigations indicate that the change in site of reactivity translates to an accelerated rate of e-/H+ transfer to the cluster surface. Our work summarizes the role which electronic occupancy and ligand density play in the uptake of e-/H+ pairs at metal oxide surfaces, providing design criteria for functional materials for energy storage and conversion processes.
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Affiliation(s)
- Eric Schreiber
- Department of Chemistry, University of Rochester Rochester NY 14611 USA
| | | | - Ellen M Matson
- Department of Chemistry, University of Rochester Rochester NY 14611 USA
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14
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Wang Q, Gu Y, Chen C, Qiao L, Pan F, Song C. Realizing Metastable Cobaltite Perovskite via Proton-Induced Filling of Oxygen Vacancy Channels. ACS APPLIED MATERIALS & INTERFACES 2023; 15:1574-1582. [PMID: 36537655 DOI: 10.1021/acsami.2c18311] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
The interaction between transition-metal oxides (TMOs) and protons has become a key issue in magneto-ionics and proton-conducting fuel cells. Until now, most investigations on oxide-proton reactions rely on electrochemical tools, while the direct interplay between protons and oxides remains basically at simple dissolution of metal oxides by an acidic solution. In this work, we find classical TMO brownmillerite SrCoO2.5 (B-SCO) films with ordered oxygen vacancy channels experiencing an interesting transition to a metastable perovskite phase (M-SCO) in a weak acidic solution. M-SCO exhibits a strong ferromagnetism (1.01 μB/Co, Tc > 200 K) and a greatly elevated electrical conductivity (∼104 of pristine SrCoO2.5), which is similar to the prototypical perovskite SrCoO3. Besides, such M-SCO tends to transform back to B-SCO in a vacuum environment or heating at a relatively low temperature. Two possible mechanisms (H2O addition/active oxygen filling) have been proposed to explain the phenomenon, and the control experiments demonstrate that the latter mechanism is the dominant process. Our work finds a new way to realize cobaltite perovskite with enhanced magnetoelectric properties and may deepen the understanding of oxide-proton interaction in an aqueous solution.
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Affiliation(s)
- Qian Wang
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing100084, China
| | - Youdi Gu
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing100084, China
| | - Chong Chen
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing100084, China
| | - Leilei Qiao
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing100084, China
| | - Feng Pan
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing100084, China
| | - Cheng Song
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing100084, China
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15
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Wang W, Jiang Y, Yang Y, Xiong F, Zhu S, Wang J, Du L, Chen J, Cui L, Xie J, An Q, Mai L. Basal Planes Unlocking and Interlayer Engineering Endows Proton Doped-MoO 2.8F 0.2 with Fast and Stable Magnesium Storage. ACS NANO 2022; 16:17097-17106. [PMID: 36149273 DOI: 10.1021/acsnano.2c07399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Molybdenum trioxide has served as a promising cathode material of rechargeable magnesium batteries (RMBs), because of its rich valence states and high theoretical capacity; yet, it still suffers from sluggish (de)intercalation kinetics and inreversible structure change for highly polarized Mg2+ in the interlayer and intralayer of structure. Herein, F- substitutional and H+ interstitial doping is proposed for α-MoO3 materials (denoted HMoOF) by the intralayer/interlayer engineering strategy to boost the performance of RMBs. F- substitutional doping generates molybdenum vacancies along the Mo-O-□ or Mo-F-□ configurations (where □ represents the cationic vacancy) for unlocking the inactive basal plane of the layered crystal structure, and it further accelerates Mg2+ diffusion along the b-axis. Interstitial-doped H+ can expand interlayer spacing for reducing Mg2+ energy barrier along the ac plane and serve as a "pillar" to stabilize the interlayer structure. Moreover, anion and cation dual doping trigger shallow impurity levels (acceptors levels and donor levels), which helps to easily acquire the electrons from the valence band and donate the electrons to the conduction band. Consequently, the HMoOF electrode exhibits a high reversible capacity (241 mA h g-1 at 0.1 A g-1), an excellent rate capability (137.4 mAh g-1 at 2 A g-1), and a long cycling stability (capacity retention of 98% after 800 cycles at 1 A g-1) in RMBs. This work affords meaningful insights in layered materials for developing high-kinetics and long-life RMBs.
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Affiliation(s)
- Weixiao Wang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, Hubei, People's Republic of China
| | - Yalong Jiang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, Hubei, People's Republic of China
| | - Ya Yang
- Key Laboratory of Microelectronics and Energy of Henan Province, Xinyang Normal University, Xinyang 464000, People's Republic of China
| | - Fangyu Xiong
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, Hubei, People's Republic of China
| | - Shaohua Zhu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, Hubei, People's Republic of China
| | - Junjun Wang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, Hubei, People's Republic of China
| | - Lulu Du
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, Hubei, People's Republic of China
| | - Jinghui Chen
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, Hubei, People's Republic of China
| | - Lianmeng Cui
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, Hubei, People's Republic of China
| | - Jun Xie
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, People's Republic of China
| | - Qinyou An
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, Hubei, People's Republic of China
- Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory, Xianhu Hydrogen Valley, Foshan 528200, Guangdong, People's Republic of China
| | - Liqiang Mai
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, Hubei, People's Republic of China
- Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory, Xianhu Hydrogen Valley, Foshan 528200, Guangdong, People's Republic of China
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16
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Zhou X, Li H, Meng F, Mao W, Wang J, Jiang Y, Fukutani K, Wilde M, Fugetsu B, Sakata I, Chen N, Chen J. Revealing the Role of Hydrogen in Electron-Doping Mottronics for Strongly Correlated Vanadium Dioxide. J Phys Chem Lett 2022; 13:8078-8085. [PMID: 35997491 DOI: 10.1021/acs.jpclett.2c02001] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Hydrogen-associated electron-doping Mottronics for d-band correlated oxides (e.g., VO2) opens up a new paradigm to regulate the electronic functionality via directly manipulating the orbital configuration and occupancy. Nevertheless, the role of hydrogen in the Mottronic transition of VO2 is yet unclear because opposite orbital reconfigurations toward either the metallic or highly insulating states were both reported. Herein, we demonstrate the root cause for such hydrogen-induced multiple electronic phase transitions by 1H quantification using nuclear reaction analysis. A low hydrogenation temperature is demonstrated to be vital in achieving a large hydrogen concentration (nH ≈ 1022 cm-3) that further enhances the t2g orbital occupancy to trigger electron localizations. In contrast, elevating the hydrogenation temperatures surprisingly reduces nH to ∼1021 cm-3 but forms more stable metallic H0.06VO2. This leads to the recognition of a weaker hydrogen interaction that triggers electron localization within VO2 via Mottronically enhancing the orbital occupancies.
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Affiliation(s)
- Xuanchi Zhou
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083 China
| | - Haifan Li
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083 China
| | - Fanqi Meng
- School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Wei Mao
- Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505, Japan
- School of Engineering, The University of Tokyo, 2-11-16 Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan
| | - Jiaou Wang
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Yong Jiang
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083 China
| | - Katsuyuki Fukutani
- Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505, Japan
| | - Markus Wilde
- Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505, Japan
| | - Bunshi Fugetsu
- Institute for Future Initiatives, The University of Tokyo, Bunkyo-ku, Tokyo 113-0032, Japan
| | - Ichiro Sakata
- School of Engineering, The University of Tokyo, 2-11-16 Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan
- Institute for Future Initiatives, The University of Tokyo, Bunkyo-ku, Tokyo 113-0032, Japan
| | - Nuofu Chen
- School of Renewable Energy, North China Electric Power University, Beijing 102206, China
| | - Jikun Chen
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083 China
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17
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Fertig AA, Matson EM. Connecting Thermodynamics and Kinetics of Proton Coupled Electron Transfer at Polyoxovanadate Surfaces Using the Marcus Cross Relation. Inorg Chem 2022; 62:1958-1967. [PMID: 36049052 PMCID: PMC9906739 DOI: 10.1021/acs.inorgchem.2c02541] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Here, we evaluate the efficacy of multiple methods for elucidating the average bond dissociation free energy (BDFE) of two surface hydroxide moieties in a reduced polyoxovanadate cluster, [V6O11(OH)2(TRIOLNO2)2]-2. Through cyclic voltammetry, individual thermochemical parameters describing proton coupled electron transfer (PCET) are obtained, without the need for synthetic isolation of intermediates. Further, we demonstrate that a method involving a series of open circuit potential measurements with varying ratios of reduced to oxidized clusters is most attractive for the direct measurement of BDFE(O-H) for polyoxovanadate clusters as this approach also determines the stoichiometry of PCET. We subsequently connect the driving force of PCET to the rate constant for the transfer of hydrogen atoms to a series of organic substrates through the Marcus cross relation. We show that this method is applicable for the prediction of reaction rates for multielectron/multiproton transfer reactions, extending the findings from previous work focused on single electron/proton reactions.
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18
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Schreiber E, Brennessel WW, Matson EM. Charge-State Dependence of Proton Uptake in Polyoxovanadate-alkoxide Clusters. Inorg Chem 2022; 61:4789-4800. [PMID: 35293218 PMCID: PMC8965876 DOI: 10.1021/acs.inorgchem.1c02937] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
Here, we present
an investigation of the thermochemistry of proton
uptake in acetonitrile across three charge states of a polyoxovanadate-alkoxide
(POV-alkoxide) cluster, [V6O7(OMe)12]n (n = 2–, 1–,
and 0). The vanadium oxide assembly studied features bridging sites
saturated by methoxide ligands, isolating protonation to terminal
vanadyl moieties. Exposure of [V6O7(OMe)12]n to organic acids of appropriate
strength results in the protonation of a terminal V=O bond,
generating the transient hydroxide-substituted POV-alkoxide cluster
[V6O6(OH)(OMe)12]n+1. Evidence for this intermediate proved elusive in our initial
report, but here we present the isolation of a divalent anionic cluster
that features hydrogen bonding to dimethylammonium at the terminal
oxo site. Degradation of the protonated species results in the formation
of equimolar quantities of one-electron-oxidized and oxygen-atom-efficient
complexes, [V6O7(OMe)12]n+1 and [V6O6(OMe)12]n+1. While analogous reactivity was
observed across the three charge states of the cluster, a dependence
on the acid strength was observed, suggesting that the oxidation state
of the vanadium oxide assembly influences the basicity of the cluster
surface. Spectroscopic investigations reveal sigmoidal relationships
between the acid strength and cluster conversion across the redox
series, allowing for determination of the proton affinity of the surface
of the cluster in all three charge states. The fully reduced cluster
is found to be the most basic, with higher oxidation states of the
assembly possessing substantially reduced proton affinities (∼7
pKa units per electron). These results
further our understanding of the site-specific reactivity of terminal M=O bonds with protons in an organic solvent,
revealing design criteria for engineering functional surfaces of metal
oxide materials of relevance to energy storage and conversion. Experimental determination of the surface
basicity of polyoxovanadate-alkoxide
clusters across three oxidation states reveals a charge-state dependence
of proton uptake in molecular, organofunctionalized vanadium oxide
assemblies.
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Affiliation(s)
- Eric Schreiber
- Department of Chemistry, University of Rochester, Rochester, New York 14627, United States
| | - William W Brennessel
- Department of Chemistry, University of Rochester, Rochester, New York 14627, United States
| | - Ellen M Matson
- Department of Chemistry, University of Rochester, Rochester, New York 14627, United States
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19
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Schreiber E, Fertig AA, Brennessel WW, Matson EM. Oxygen-Atom Defect Formation in Polyoxovanadate Clusters via Proton-Coupled Electron Transfer. J Am Chem Soc 2022; 144:5029-5041. [PMID: 35275632 PMCID: PMC8949770 DOI: 10.1021/jacs.1c13432] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
![]()
The uptake of hydrogen
atoms (H-atoms) into reducible metal oxides
has implications in catalysis and energy storage. However, outside
of computational modeling, it is difficult to obtain insight into
the physicochemical factors that govern H-atom uptake at the atomic
level. Here, we describe oxygen-atom vacancy formation in a series
of hexavanadate assemblies via proton-coupled electron transfer, presenting
a novel pathway for the formation of defect sites at the surface of
redox-active metal oxides. Kinetic investigations reveal that H-atom
transfer to the metal oxide surface occurs through concerted proton–electron
transfer, resulting in the formation of a transient VIII–OH2 moiety that, upon displacement of the water
ligand with an acetonitrile molecule, forms the oxygen-deficient polyoxovanadate-alkoxide
cluster. Oxidation state distribution of the cluster core dictates
the affinity of surface oxido ligands for H-atoms, mirroring the behavior
of reducible metal oxide nanocrystals. Ultimately, atomistic insights
from this work provide new design criteria for predictive proton-coupled
electron-transfer reactivity of terminal M=O moieties at the
surface of nanoscopic metal oxides.
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Affiliation(s)
- Eric Schreiber
- Department of Chemistry, University of Rochester, Rochester, New York 14627, United States
| | - Alex A Fertig
- Department of Chemistry, University of Rochester, Rochester, New York 14627, United States
| | - William W Brennessel
- Department of Chemistry, University of Rochester, Rochester, New York 14627, United States
| | - Ellen M Matson
- Department of Chemistry, University of Rochester, Rochester, New York 14627, United States
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20
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Kang BJ, Rohrbach D, Brunner FDJ, Bagiante S, Sigg H, Feurer T. Ultrafast and Low-Threshold THz Mode Switching of Two-Dimensional Nonlinear Metamaterials. NANO LETTERS 2022; 22:2016-2022. [PMID: 35133848 DOI: 10.1021/acs.nanolett.1c04776] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Judiciously designed two-dimensional THz metamaterials consisting of resonant metallic structures embedded in a dielectric environment locally enhance the electromagnetic field of an incident THz pulse to values sufficiently high to cause nonlinear responses of the environment. In semiconductors, the response is attributed to nonlinear transport phenomena via intervalley scattering, impact ionization, or interband tunneling and can affect the resonant behavior of the metallic structure, which results, for instance, in mode switching. However, details of mode switching, especially time scales, are still debated. By using metallic split-ring resonators with nm-size gaps on intrinsic semiconductors with different bandgaps, we identify the most relevant carrier generation processes. In addition, by combining nonlinear THz time-domain spectroscopy with simulations, we establish the fastest time constant for mode switching to around hundred femtoseconds. Our results not only elucidate dominant carrier generation mechanisms and dynamics but also pave the route toward optically driven modulators with THz bandwidth.
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Affiliation(s)
- Bong Joo Kang
- Institute of Applied Physics, University of Bern, 3012 Bern, Switzerland
| | - David Rohrbach
- Institute of Applied Physics, University of Bern, 3012 Bern, Switzerland
| | - Fabian D J Brunner
- Institute of Applied Physics, University of Bern, 3012 Bern, Switzerland
| | - Salvatore Bagiante
- Institute of Applied Physics, University of Bern, 3012 Bern, Switzerland
- Laboratory for Micro- and Nanotechnology, Paul Scherrer Institute, 5232 Villigen, Switzerland
| | - Hans Sigg
- Laboratory for Micro- and Nanotechnology, Paul Scherrer Institute, 5232 Villigen, Switzerland
| | - Thomas Feurer
- Institute of Applied Physics, University of Bern, 3012 Bern, Switzerland
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21
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Dai J, Shi Y, Chen C, Chen X, Zhao C, Chen J. The mechanism of semiconductor to metal transition in the hydrogenation of VO2: A density functional theory study. Phys Chem Chem Phys 2022; 24:5710-5719. [DOI: 10.1039/d1cp03891e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
VO2 is a glamorous material with specific metal-semiconductor-transition (MST). The hydrogenation of VO2 could make it a promising material applying in the ambient environment. In this work, we reveal the...
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22
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Ma H, Xiao X, Wang Y, Sun Y, Wang B, Gao X, Wang E, Jiang K, Liu K, Zhang X. Wafer-scale freestanding vanadium dioxide film. SCIENCE ADVANCES 2021; 7:eabk3438. [PMID: 34878834 PMCID: PMC8654297 DOI: 10.1126/sciadv.abk3438] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Vanadium dioxide (VO2), with well-known metal-to-insulator phase transition, has been used to realize intriguing smart functions in photodetectors, modulators, and actuators. Wafer-scale freestanding VO2 (f-VO2) films are desirable for integrating VO2 with other materials into multifunctional devices. Unfortunately, their preparation has yet to be achieved because the wafer-scale etching needs ultralong time and damages amphoteric VO2 whether in acid or alkaline etchants. Here, we achieved wafer-scale f-VO2 films by a nano-pinhole permeation-etching strategy in 6 min, far less than that by side etching (thousands of minutes). The f-VO2 films retain their pristine metal-to-insulator transition and intrinsic mechanical properties and can be conformably transferred to arbitrary substrates. Integration of f-VO2 films into diverse large-scale smart devices, including terahertz modulators, camouflageable photoactuators, and temperature-indicating strips, shows advantages in low insertion loss, fast response, and low triggering power. These f-VO2 films find more intriguing applications by heterogeneous integration with other functional materials.
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Affiliation(s)
- He Ma
- Institute of Information Photonics Technology, Faculty of Science, Beijing University of Technology, Beijing 100124, P. R. China
| | - Xiao Xiao
- Institute of Information Photonics Technology, Faculty of Science, Beijing University of Technology, Beijing 100124, P. R. China
| | - Yu Wang
- Institute of Information Photonics Technology, Faculty of Science, Beijing University of Technology, Beijing 100124, P. R. China
| | - Yufei Sun
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, P. R. China
| | - Bolun Wang
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, P. R. China
| | - Xinyu Gao
- State Key Laboratory of Low-Dimensional Quantum Physics, Tsinghua-Foxconn Nanotechnology Research Center, Department of Physics, Collaborative Innovation Center of Quantum Matter, Tsinghua University, Beijing 100084, P. R. China
| | - Enze Wang
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, P. R. China
| | - Kaili Jiang
- State Key Laboratory of Low-Dimensional Quantum Physics, Tsinghua-Foxconn Nanotechnology Research Center, Department of Physics, Collaborative Innovation Center of Quantum Matter, Tsinghua University, Beijing 100084, P. R. China
| | - Kai Liu
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, P. R. China
- Corresponding author. (K.L.); (X.Z.)
| | - Xinping Zhang
- Institute of Information Photonics Technology, Faculty of Science, Beijing University of Technology, Beijing 100124, P. R. China
- Corresponding author. (K.L.); (X.Z.)
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23
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Li B, Li L, Ren H, Lu Y, Peng F, Chen Y, Hu C, Zhang G, Zou C. Photoassisted Electron-Ion Synergic Doping Induced Phase Transition of n-VO 2/p-GaN Thin-Film Heterojunction. ACS APPLIED MATERIALS & INTERFACES 2021; 13:43562-43572. [PMID: 34468117 DOI: 10.1021/acsami.1c10401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
As a typical correlated metal oxide, vanadium dioxide (VO2) shows specific metal-insulator transition (MIT) properties and demonstrates great potential applications in ultrafast optoelectronic switch, resistive memory, and neuromorphic devices. Effective control of the MIT process is essential for improving the device performance. In the current study, we have first proposed a photoassisted ion-doping method to modulate the phase transition of the VO2 layer based on the photovoltaic effect and electron-ion synergic doping in acid solution. Experimental results show that, for the prepared n-VO2/p-GaN nanojunction, this photoassisted strategy can effectively dope the n-VO2 layer by H+, Al3+, or Mg2+ ions under light radiation and trigger consecutive insulator-metal-insulator transitions. If combined with standard lithography or electron beam etching processes, selective doping with nanoscale size area can also be achieved. This photoassisted doping method not only shows a facile route for MIT modulation via a doping route under ambient conditions but also supplies some clues for photosensitive detection in the future.
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Affiliation(s)
- Bowen Li
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P. R. China
| | - Liang Li
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P. R. China
| | - Hui Ren
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P. R. China
| | - Yuan Lu
- State Key Laboratory of Pulsed Power Laser Technology, NUDT, Hefei 230037, P. R. China
- Infrared and Low Temperature Plasma Key Laboratory of Anhui Province, NUDT, Hefei 230037, P. R. China
| | - Fangfang Peng
- Center for Micro- and Nanoscale Research and Fabrication, University of Science and Technology of China, Hefei 230029, P. R. China
| | - Yuliang Chen
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P. R. China
| | - Changlong Hu
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P. R. China
| | - Guobin Zhang
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P. R. China
- Anhui Laboratory of Advanced Photon Science and Technology, University of Science and Technology of China, Hefei 230029, P. R. China
| | - Chongwen Zou
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P. R. China
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24
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Zhu H, Yang Q, Liu D, Du Y, Yan S, Gu M, Zou Z. Direct Electrochemical Protonation of Metal Oxide Particles. J Am Chem Soc 2021; 143:9236-9243. [PMID: 34101442 DOI: 10.1021/jacs.1c04631] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Metal oxides with surface protonation exhibit versatile physical and chemical properties suitable for use in many fields. Here, we develop an electrochemical route to directly protonize the physically assembled oxide particles, such as TiO2, Nb2O5, and WO3, in a Na2SO4 neutral electrolyte, which is a result of electrochemically induced oxygen vacancies reacting with water molecules. With no need of electric connection among particles or between particles and conductive substrate, the electrochemical protonation follows a bottom-up particle-by-particle surface protonation mechanism due to the fact that the protonation inducing high surface conductivity creates an efficient electron transfer pathway among particles. Our results show that electrochemical protonation of particles provides a chance to finely functionalize the surface of a single particle by only adjusting electrode potentials. Such a facile, cost-efficient, and green route is easy to run for a large-scale production and unlocks the potential of semiconductor oxides for various applications.
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Affiliation(s)
- Heng Zhu
- Jiangsu Key Laboratory for Nano Technology, Eco-Materials and Renewable Energy Research Center (ERERC), Collaborative Innovation Center of Advanced Microstructures, College of Engineering and Applied Sciences, Nanjing University, No. 22 Hankou Road, Nanjing, Jiangsu 210093, People's Republic of China.,School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen, Guangdong 518172, People's Republic of China
| | - Qimeng Yang
- Jiangsu Key Laboratory for Nano Technology, Eco-Materials and Renewable Energy Research Center (ERERC), Collaborative Innovation Center of Advanced Microstructures, College of Engineering and Applied Sciences, Nanjing University, No. 22 Hankou Road, Nanjing, Jiangsu 210093, People's Republic of China
| | - Depei Liu
- National Laboratory of Solid State Microstructures, School of Physics, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, No. 22 Hankou Road, Nanjing, Jiangsu 210093, People's Republic of China
| | - Yu Du
- Jiangsu Key Laboratory for Nano Technology, Eco-Materials and Renewable Energy Research Center (ERERC), Collaborative Innovation Center of Advanced Microstructures, College of Engineering and Applied Sciences, Nanjing University, No. 22 Hankou Road, Nanjing, Jiangsu 210093, People's Republic of China
| | - Shicheng Yan
- Jiangsu Key Laboratory for Nano Technology, Eco-Materials and Renewable Energy Research Center (ERERC), Collaborative Innovation Center of Advanced Microstructures, College of Engineering and Applied Sciences, Nanjing University, No. 22 Hankou Road, Nanjing, Jiangsu 210093, People's Republic of China
| | - Min Gu
- National Laboratory of Solid State Microstructures, School of Physics, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, No. 22 Hankou Road, Nanjing, Jiangsu 210093, People's Republic of China
| | - Zhigang Zou
- Jiangsu Key Laboratory for Nano Technology, Eco-Materials and Renewable Energy Research Center (ERERC), Collaborative Innovation Center of Advanced Microstructures, College of Engineering and Applied Sciences, Nanjing University, No. 22 Hankou Road, Nanjing, Jiangsu 210093, People's Republic of China.,National Laboratory of Solid State Microstructures, School of Physics, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, No. 22 Hankou Road, Nanjing, Jiangsu 210093, People's Republic of China
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25
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Bian Z, Zhao J, Cao H, Dong Y, Luo Z. Reversible Rapid Hydrogen Doping of WO 3 in Non-Acid Solution. ACS APPLIED MATERIALS & INTERFACES 2021; 13:13419-13424. [PMID: 33709704 DOI: 10.1021/acsami.1c01165] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Hydrogenation, an effective way to tune the properties of transition metal oxide (TMO) thin films, has been long awaited to be performed safely and without an external energy input. Recently, metal-acid-TMO has been reported to be an effective approach for hydrogenation, but the requirement of acid limits its application. In this work, the reversible and rapid hydrogen doping of WO3 in NaOH(aq) | Al(s) | WO3(s) is revealed by structural and electrical measurements. Accompanied by the structural phase transition identified by in situ X-ray diffraction, the electric resistance of the WO3 film is found to be able to change by 5 orders of magnitude. A significant electrical response of touching, 8-fold in amplitude and 3 s in a cycle, can be achieved in the low-resistance state. These reactions are reversible at room temperature. This study unambiguously proves that the hydrogenation-driven dynamic phase transition of WO3 in metal-solution-WO3 systems could occur not only in acid solutions but also in some non-acid environments. Unlike the monotonic increase of resistance revealed during HδWO3 to WO3 transition, an intriguing non-monotonic evolution was found for crystal lattice parameter c, indicating that the mechanism of WO3 hydrogenation involves a series of metastable states, more comprehensive and reasonable. This work sheds light on the potential applications of metal-solution-TMO hydrogenation in touching sensors, circuits survey, and information storage.
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Affiliation(s)
- Zhiping Bian
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China
| | - Jiangtao Zhao
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China
| | - Heng Cao
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China
| | - Yongqi Dong
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China
- Shenzhen Key Laboratory of Nanobiomechanics, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Zhenlin Luo
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China
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26
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Li Z, Wu Q, Wu C. Surface/Interface Chemistry Engineering of Correlated-Electron Materials: From Conducting Solids, Phase Transitions to External-Field Response. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:2002807. [PMID: 33643796 PMCID: PMC7887576 DOI: 10.1002/advs.202002807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 09/25/2020] [Indexed: 06/12/2023]
Abstract
Correlated electronic materials (CEMs) with strong electron-electron interactions are often associated with exotic properties, such as metal-insulator transition (MIT), charge density wave (CDW), superconductivity, and magnetoresistance (MR), which are fundamental to next generation condensed matter research and electronic devices. When the dimension of CEMs decreases, exposing extremely high specific surface area and enhancing electronic correlation, the surface states are equally important to the bulk phase. Therefore, surface/interface chemical interactions provide an alternative route to regulate the intrinsic properties of low-dimensional CEMs. Here, recent achievements in surface/interface chemistry engineering of low-dimensional CEMs are reviewed, using surface modification, molecule-solid interaction, and interface electronic coupling, toward modulation of conducting solids, phase transitions including MIT, CDW, superconductivity, and magnetism transition, as well as external-field response. Surface/interface chemistry engineering provides a promising strategy for exploring novel properties and functional applications in low-dimensional CEMs. Finally, the current challenge and outlook of the surface/interface engineering are also pointed out for future research development.
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Affiliation(s)
- Zejun Li
- Hefei National Laboratory for Physical Sciences at the MicroscaleCAS center for Excellence in Nanoscienceand CAS Key Laboratory of Mechanical Behavior and Design of MaterialsUniversity of Science and Technology of ChinaHefeiAnhui230026PR China
| | - Qiran Wu
- Hefei National Laboratory for Physical Sciences at the MicroscaleCAS center for Excellence in Nanoscienceand CAS Key Laboratory of Mechanical Behavior and Design of MaterialsUniversity of Science and Technology of ChinaHefeiAnhui230026PR China
| | - Changzheng Wu
- Hefei National Laboratory for Physical Sciences at the MicroscaleCAS center for Excellence in Nanoscienceand CAS Key Laboratory of Mechanical Behavior and Design of MaterialsUniversity of Science and Technology of ChinaHefeiAnhui230026PR China
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27
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Chakraborty S, Matson EM. Reductive silylation of polyoxovanadate surfaces using Mashima's reagent. Inorg Chem Front 2021. [DOI: 10.1039/d1qi00920f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Mechanistic insights into the reductive silylation of metal oxide surfaces.
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Affiliation(s)
- Sourav Chakraborty
- Department of Chemistry, University of Rochester, Rochester, NY 14627, USA
| | - Ellen M. Matson
- Department of Chemistry, University of Rochester, Rochester, NY 14627, USA
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28
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Li B, Hu M, Ren H, Hu C, Li L, Zhang G, Jiang J, Zou C. Atomic Origin for Hydrogenation Promoted Bulk Oxygen Vacancies Removal in Vanadium Dioxide. J Phys Chem Lett 2020; 11:10045-10051. [PMID: 33179929 DOI: 10.1021/acs.jpclett.0c02773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Oxygen vacancies (VO), a common type of point defect in metal oxides materials, play important roles in the physical and chemical properties. To obtain stoichiometric oxide crystal, the pre-existing VO is always removed via careful post-annealing treatment at high temperature in an air or oxygen atmosphere. However, the annealing conditions are difficult to control, and the removal of VO in the bulk phase is restrained because of the high energy barrier of VO migration. Here, we selected VO2 crystal film as the model system and developed an alternative annealing treatment aided by controllable hydrogen doping, which can realize effective removal of VO defects in the VO2-δ crystal at a lower temperature. This finding is attributed to the hydrogenation accelerated oxygen vacancies recovery in the VO2-δ crystal. Theoretical calculations revealed that the H-doping-induced electrons are prone to accumulate around the oxygen defects in the VO2-δ film, which facilitates the diffusion of VO and thus makes it easier to be removed. The methodology is expected to be applied to other metal oxides for oxygen-related point defects control.
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Affiliation(s)
- Bowen Li
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P. R. China
| | - Min Hu
- Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Chemistry for Energy Materials, CAS Center for Excellence in Nanoscience, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Hui Ren
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P. R. China
| | - Changlong Hu
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P. R. China
| | - Liang Li
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P. R. China
| | - Guozhen Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Chemistry for Energy Materials, CAS Center for Excellence in Nanoscience, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Jun Jiang
- Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Chemistry for Energy Materials, CAS Center for Excellence in Nanoscience, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Chongwen Zou
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P. R. China
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29
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Zhu Q, Jiang S, Ye K, Hu W, Zhang J, Niu X, Lin Y, Chen S, Song L, Zhang Q, Jiang J, Luo Y. Hydrogen-Doping-Induced Metal-Like Ultrahigh Free-Carrier Concentration in Metal-Oxide Material for Giant and Tunable Plasmon Resonance. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e2004059. [PMID: 33174328 DOI: 10.1002/adma.202004059] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 08/06/2020] [Indexed: 06/11/2023]
Abstract
The practical utilization of plasmon-based technology relies on the ability to find high-performance plasmonic materials other than noble metals. A key scientific challenge is to significantly increase the intrinsically low concentration of free carriers in metal-oxide materials. Here, a novel electron-proton co-doping strategy is developed to achieve uniform hydrogen doping in metal-oxide MoO3 at mild conditions, which creates a metal-like ultrahigh free-carrier concentration approaching that of noble metals (1021 cm-3 in H1.68 MoO3 versus 1022 cm-3 in Au/Ag). This bestows giant and tunable plasmonic resonances in the visible region to this originally semiconductive material. Using ultrafast spectroscopy characterizations and first-principle simulations, the formation of a quasi-metallic energy band structure that leads to long-lived and strong plasmonic field is revealed. As verified by the surface-enhanced Raman spectra (SERS) of rhodamine 6G molecules on Hx MoO3 , the SERS enhancement factor reaches as high as 1.1 × 107 with a detection limit at concentration as low as 1 × 10-9 mol L-1 , representing the best among the hitherto reported non-metal systems. The findings not only provide a set of metal-like semiconductor materials with merits of low cost, tunable electronic structure, and plasmonic resonance, but also a general strategy to induce tunable ultrahigh free-carrier concentration in non-metal systems.
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Affiliation(s)
- Qing Zhu
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical Physics, Synergetic Innovation Center of Quantum Information and Quantum Physics, National Synchrotron Radiation Laboratory, CAS Center for Excellence in Nanoscience, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Shenlong Jiang
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical Physics, Synergetic Innovation Center of Quantum Information and Quantum Physics, National Synchrotron Radiation Laboratory, CAS Center for Excellence in Nanoscience, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Ke Ye
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical Physics, Synergetic Innovation Center of Quantum Information and Quantum Physics, National Synchrotron Radiation Laboratory, CAS Center for Excellence in Nanoscience, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Wei Hu
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical Physics, Synergetic Innovation Center of Quantum Information and Quantum Physics, National Synchrotron Radiation Laboratory, CAS Center for Excellence in Nanoscience, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Jiachen Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical Physics, Synergetic Innovation Center of Quantum Information and Quantum Physics, National Synchrotron Radiation Laboratory, CAS Center for Excellence in Nanoscience, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Xiaoyou Niu
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical Physics, Synergetic Innovation Center of Quantum Information and Quantum Physics, National Synchrotron Radiation Laboratory, CAS Center for Excellence in Nanoscience, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Yunxiang Lin
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical Physics, Synergetic Innovation Center of Quantum Information and Quantum Physics, National Synchrotron Radiation Laboratory, CAS Center for Excellence in Nanoscience, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Shuangming Chen
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical Physics, Synergetic Innovation Center of Quantum Information and Quantum Physics, National Synchrotron Radiation Laboratory, CAS Center for Excellence in Nanoscience, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Li Song
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical Physics, Synergetic Innovation Center of Quantum Information and Quantum Physics, National Synchrotron Radiation Laboratory, CAS Center for Excellence in Nanoscience, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Qun Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical Physics, Synergetic Innovation Center of Quantum Information and Quantum Physics, National Synchrotron Radiation Laboratory, CAS Center for Excellence in Nanoscience, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Jun Jiang
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical Physics, Synergetic Innovation Center of Quantum Information and Quantum Physics, National Synchrotron Radiation Laboratory, CAS Center for Excellence in Nanoscience, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Yi Luo
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical Physics, Synergetic Innovation Center of Quantum Information and Quantum Physics, National Synchrotron Radiation Laboratory, CAS Center for Excellence in Nanoscience, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
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30
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Duan X, White ST, Cui Y, Neubrech F, Gao Y, Haglund RF, Liu N. Reconfigurable Multistate Optical Systems Enabled by VO 2 Phase Transitions. ACS PHOTONICS 2020; 7:2958-2965. [PMID: 33241075 PMCID: PMC7678723 DOI: 10.1021/acsphotonics.0c01241] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Indexed: 05/14/2023]
Abstract
Reconfigurable optical systems are the object of continuing, intensive research activities, as they hold great promise for realizing a new generation of compact, miniaturized, and flexible optical devices. However, current reconfigurable systems often tune only a single state variable triggered by an external stimulus, thus, leaving out many potential applications. Here we demonstrate a reconfigurable multistate optical system enabled by phase transitions in vanadium dioxide (VO2). By controlling the phase-transition characteristics of VO2 with simultaneous stimuli, the responses of the optical system can be reconfigured among multiple states. In particular, we show a quadruple-state dynamic plasmonic display that responds to both temperature tuning and hydrogen-doping. Furthermore, we introduce an electron-doping scheme to locally control the phase-transition behavior of VO2, enabling an optical encryption device encoded by multiple keys. Our work points the way toward advanced multistate reconfigurable optical systems, which substantially outperform current optical devices in both breadth of capabilities and functionalities.
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Affiliation(s)
- Xiaoyang Duan
- Max
Planck Institute for Intelligent Systems, Heisenbergstrasse 3, 70569 Stuttgart, Germany
| | - Samuel T. White
- Department
of Physics and Astronomy, Vanderbilt University, Nashville, Tennessee 37212, United States
| | - Yuanyuan Cui
- School
of Materials Science and Engineering, Shanghai
University, Shanghai 200444, China
| | - Frank Neubrech
- Max
Planck Institute for Intelligent Systems, Heisenbergstrasse 3, 70569 Stuttgart, Germany
| | - Yanfeng Gao
- School
of Materials Science and Engineering, Shanghai
University, Shanghai 200444, China
- E-mail:
| | - Richard F. Haglund
- Department
of Physics and Astronomy, Vanderbilt University, Nashville, Tennessee 37212, United States
- Interdisciplinary
Materials Science Program, Vanderbilt University, Nashville, Tennessee 37212, United States
- E-mail:
| | - Na Liu
- Second
Physics Institute, University of Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart, Germany
- Max Planck
Institute for Solid State Research, Heisenbergstrasse 1, 70569 Stuttgart, Germany
- E-mail:
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31
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Schreiber E, Petel BE, Matson EM. Acid-Induced, Oxygen-Atom Defect Formation in Reduced Polyoxovanadate-Alkoxide Clusters. J Am Chem Soc 2020; 142:9915-9919. [PMID: 32433883 DOI: 10.1021/jacs.0c03864] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Here, we present the first example of acid-induced, oxygen-atom abstraction from the surface of a polyoxometalate cluster. Generation of the oxygen-deficient vanadium oxide, [V6O6(OC2H5)12]1-, was confirmed via independent synthesis. Spectroscopic analysis using infrared and electronic absorption spectroscopies affords resolution of the electronic structure of the oxygen-deficient cluster (oxidation state distribution = [VIIIVIV5]). This work has direct implications toward the elucidation of possible mechanisms of acid-assisted vacancy formation in bulk transition metal oxides, in particular electron-proton codoping that has recently been described for vanadium oxide (VO2). Ultimately, these molecular models deepen our understanding of proton-dependent redox chemistry of transition metal oxide surfaces.
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Affiliation(s)
- Eric Schreiber
- Department of Chemistry, University of Rochester, Rochester, New York 14627, United States
| | - Brittney E Petel
- Department of Chemistry, University of Rochester, Rochester, New York 14627, United States
| | - Ellen M Matson
- Department of Chemistry, University of Rochester, Rochester, New York 14627, United States
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32
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Zhu Q, Ye K, Zhu W, Xu W, Zou C, Song L, Sharman E, Wang L, Jin S, Zhang G, Luo Y, Jiang J. A Hydrogenated Metal Oxide with Full Solar Spectrum Absorption for Highly Efficient Photothermal Water Evaporation. J Phys Chem Lett 2020; 11:2502-2509. [PMID: 32160473 DOI: 10.1021/acs.jpclett.0c00592] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Searching for cost-effective photothermal material that can harvest the full solar spectrum is critically important for solar-driven water evaporation. Metal oxides are cheap materials but cannot cover the full solar spectrum. Here we prepared a hydrogenated metal oxide (H1.68MoO3) material, in which H-doping causes the insulator-to-metal phase transition of the originally semiconductive MoO3. It offers a blackbody-like solar absorption of ≥95% over the entire visible-to-near-infrared solar spectrum, owing to its unusual quasi-metallic energy band, and high solar-to-heat conversion rate due to quick relaxation of excited electrons. Using a self-floating H1.68MoO3/airlaid paper photothermal film, we achieved a stable and high water vapor generation rate of 1.37 kg m-2 h-1, a superb solar-to-vapor efficiency of 84.8% under 1 sun illumination, and daily production of 12.4 L of sanitary water/m2 from seawater under natural sunlight. This thus opens a new avenue of designing cost-effective photothermal materials based on metal oxides.
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Affiliation(s)
- Qing Zhu
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Center for Excellence in Nanoscience, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Ke Ye
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Center for Excellence in Nanoscience, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Wen Zhu
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, P. R. China
| | - Wenjie Xu
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, P. R. China
| | - Chongwen Zou
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, P. R. China
| | - Li Song
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, P. R. China
| | - Edward Sharman
- Department of Neurology, University of California, Irvine, California 92697, United States
| | - Linjun Wang
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Center for Excellence in Nanoscience, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Shunyu Jin
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Center for Excellence in Nanoscience, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Guozhen Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Center for Excellence in Nanoscience, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Yi Luo
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Center for Excellence in Nanoscience, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Jun Jiang
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Center for Excellence in Nanoscience, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
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33
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Xie L, Zhu Q, Zhang G, Ye K, Zou C, Prezhdo OV, Wang Z, Luo Y, Jiang J. Tunable Hydrogen Doping of Metal Oxide Semiconductors with Acid-Metal Treatment at Ambient Conditions. J Am Chem Soc 2020; 142:4136-4140. [PMID: 32081005 DOI: 10.1021/jacs.0c00561] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Hydrogen doping of metal oxide semiconductors is promising for manipulation of their properties toward various applications. Yet it is quite challenging because it requires harsh reaction conditions and expensive metal catalysts. Meanwhile, acids as a cheap source of protons have long been unappreciated. Here, we develop a sophisticated acid-metal treatment for tunable hydrogenation of metal oxides at ambient conditions. Using first-principles simulations, we first show that, with proper work function difference between the metal and metal oxide, H-diffusion into negatively charged metal oxide can be well controlled, resulting in tunable H-doping of metal oxides with quasi-metal characteristics. This has been verified by proof-of-concept experiments that achieved the controllable hydrogenation of WO3 using Cu and hydrochloric acid at ambient conditions. Further, H-doping of other metal oxides (TiO2/Nb2O5/MoO3) has been achieved by metal-acid treatment and induced a change in properties. Our work provides a promising way to tailor metal oxides via tunable H-doping.
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Affiliation(s)
- Liyan Xie
- Hefei National Laboratory for Physical Sciences at the Microscale, Chinese Academy of Sciences Center for Excellence in Nanoscience, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Qing Zhu
- Hefei National Laboratory for Physical Sciences at the Microscale, Chinese Academy of Sciences Center for Excellence in Nanoscience, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Guozhen Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale, Chinese Academy of Sciences Center for Excellence in Nanoscience, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Ke Ye
- Hefei National Laboratory for Physical Sciences at the Microscale, Chinese Academy of Sciences Center for Excellence in Nanoscience, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Chongwen Zou
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China
| | - Oleg V Prezhdo
- Department of Chemistry, University of Southern California, Los Angeles, California 90089, United States
| | - Zhaowu Wang
- Henan Key Laboratory of Photoelectric Energy Storage Materials and Applications, School of Physics and Engineering, Henan University of Science and Technology, Luoyang, Henan 471023, China
| | - Yi Luo
- Hefei National Laboratory for Physical Sciences at the Microscale, Chinese Academy of Sciences Center for Excellence in Nanoscience, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Jun Jiang
- Hefei National Laboratory for Physical Sciences at the Microscale, Chinese Academy of Sciences Center for Excellence in Nanoscience, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, China
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34
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Wang Z, Wang X, Sharman E, Li X, Yang L, Zhang G, Jiang J. Tuning Phase Transitions in Metal Oxides by Hydrogen Doping: A First-Principles Study. J Phys Chem Lett 2020; 11:1075-1080. [PMID: 31973524 DOI: 10.1021/acs.jpclett.0c00097] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Optimizing physical or chemical properties via electronic phase transitions is important for developing high-performance semiconductor materials. Using first-principles calculations, we established hydrogen doping (H-doping) as an alternative strategy for modulating phase transitions in metal oxide semiconductors. We found that H-doping can induce an insulator-to-metal phase transition in rutile TiO2 or wurtzite ZnO, a metal-to-insulator phase transition in rutile VO2, and sequential insulator-metal-insulator phase transitions in SnO2. H-doping not only creates defect-induced states inside the original bandgap but also induces new occupancy patterns in conduction band edge states. A linear relationship between occupation of the conduction band edge and H-doping concentration was found, offering the possibility of precisely tuning the material's free-carrier concentration, electrical conductance, and photoabsorption ability. We envision that this work will provide a promising way to tune electrical phase transitions in metal oxides.
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Affiliation(s)
- Zhaowu Wang
- School of Physics and Engineering , Henan University of Science and Technology, Henan Key Laboratory of Photoelectric Energy Storage Materials and Applications , Luoyang , Henan 471023 , China
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Center for Excellence in Nanoscience, School of Chemistry and Materials Science , University of Science and Technology of China , Hefei , Anhui 230026 , China
- National Laboratory of Solid State Microstructures , Nanjing University , Nanjing 210093 , China
| | - Xijun Wang
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Center for Excellence in Nanoscience, School of Chemistry and Materials Science , University of Science and Technology of China , Hefei , Anhui 230026 , China
| | - Edward Sharman
- Department of Neurology , University of California , Irvine , California 92697 , United States
| | - Xiyu Li
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Center for Excellence in Nanoscience, School of Chemistry and Materials Science , University of Science and Technology of China , Hefei , Anhui 230026 , China
| | - Li Yang
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Center for Excellence in Nanoscience, School of Chemistry and Materials Science , University of Science and Technology of China , Hefei , Anhui 230026 , China
| | - Guozhen Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Center for Excellence in Nanoscience, School of Chemistry and Materials Science , University of Science and Technology of China , Hefei , Anhui 230026 , China
| | - Jun Jiang
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Center for Excellence in Nanoscience, School of Chemistry and Materials Science , University of Science and Technology of China , Hefei , Anhui 230026 , China
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35
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Petel BE, Matson EM. Oxygen-atom vacancy formation and reactivity in polyoxovanadate clusters. Chem Commun (Camb) 2020; 56:13477-13490. [DOI: 10.1039/d0cc05920j] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Overview of recent work detailing oxygen-deficient polyoxovanadate clusters as models for reducible metal oxides: toward gaining a fundamental understanding the consequences of vacancy formation on metal oxide surfaces during catalysis.
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36
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Kim JE, Panda K, Park JY. Enhanced charge storage properties of ultrananocrystalline diamond films by contact electrification-induced hydrogenation. RSC Adv 2020; 10:33189-33195. [PMID: 35515020 PMCID: PMC9056710 DOI: 10.1039/d0ra05409g] [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: 06/20/2020] [Accepted: 09/02/2020] [Indexed: 12/26/2022] Open
Abstract
We report the enhanced charge storage characteristics of ultrananocrystalline diamond (UNCD) by contact electrification-induced hydrogenation. The non-catalytic hydrogenation of UNCD films was achieved by using platinum as an electron donor and sulfuric acid as a hydrogen proton donor, confirmed by Raman spectroscopy and time-of-flight secondary ion mass spectroscopy (TOF-SIMS). Chemical treatment with only a H2SO4 solution is responsible for the surface oxidation. The oxidation of UNCD resulted in an increase in the quantity and duration of the tribocharges. After non-catalytic hydrogenation, the generation of friction-induced tribocharges was enhanced and remained for three hours and more. We show that the hydrogen incorporation on grain boundaries is responsible for the improvement of charge storage capability, because the doped hydrogen acts as a trap site for the tribocharges. This lab-scale and succinct method can be utilized to control charge trap capability in nanoscale memory electronics. The enhanced charge storage characteristics of ultrananocrystalline diamond caused by contact electrification-induced hydrogenation was demonstrated by using atomic force microscopy.![]()
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Affiliation(s)
- Jae-Eun Kim
- Center for Nanomaterials and Chemical Reactions
- Institute for Basic Science (IBS)
- Daejeon 34141
- Republic of Korea
- Department of Chemistry
| | - Kalpataru Panda
- Center for Nanomaterials and Chemical Reactions
- Institute for Basic Science (IBS)
- Daejeon 34141
- Republic of Korea
| | - Jeong Young Park
- Center for Nanomaterials and Chemical Reactions
- Institute for Basic Science (IBS)
- Daejeon 34141
- Republic of Korea
- Department of Chemistry
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37
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Long-range propagation of protons in single-crystal VO 2 involving structural transformation to HVO 2. Sci Rep 2019; 9:20093. [PMID: 31882980 PMCID: PMC6934566 DOI: 10.1038/s41598-019-56685-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Accepted: 12/13/2019] [Indexed: 11/09/2022] Open
Abstract
Vanadium dioxide (VO2) is a strongly correlated electronic material with a metal-insulator transition (MIT) near room temperature. Ion-doping to VO2 dramatically alters its transport properties and the MIT temperature. Recently, insulating hydrogenated VO2 (HVO2) accompanied by a crystal structure transformation from VO2 was experimentally observed. Despite the important steps taken towards realizing novel applications, essential physics such as the diffusion constant of intercalated protons and the crystal transformation energy between VO2 and HVO2 are still lacking. In this work, we investigated the physical parameters of proton diffusion constants accompanied by VO2 to HVO2 crystal transformation with temperature variation and their transformation energies. It was found that protons could propagate several micrometers with a crystal transformation between VO2 and HVO2. The proton diffusion speed from HVO2 to VO2 was approximately two orders higher than that from VO2 to HVO2. The long-range propagation of protons leads to the possibility of realizing novel iontronic applications and energy devices.
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38
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Yoon H, Kim Y, Crumlin EJ, Lee D, Ihm K, Son J. Direct Probing of Oxygen Loss from the Surface Lattice of Correlated Oxides during Hydrogen Spillover. J Phys Chem Lett 2019; 10:7285-7292. [PMID: 31696710 DOI: 10.1021/acs.jpclett.9b02670] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Hydrogen spillover is a catalytic process that occurs by surface reaction and subsequent diffusion to reversibly provide a massive amount of hydrogen dopants in correlated oxides, but the mechanism at the surface of correlated oxides with metal catalyst are not well understood. Here we show that a significant amount of oxygen is released from the surface of correlated VO2 films during hydrogen spillover, contrary to the well-established observation of the formation of hydrogen interstitials in the bulk part of VO2 films. By using ambient-pressure X-ray photoelectron spectroscopy, we prove that the formation of surface oxygen vacancies is a consequence of a favorable reaction for the generation of weakly adsorbed H2O from surface O atoms that have low coordination and weak binding strength. Our results reveal the importance of in situ characterization to prove the dynamic change during redox reaction and present an opportunity to control intrinsic defects at the surface.
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Affiliation(s)
- Hyojin Yoon
- Department of Materials Science and Engineering , Pohang University of Science and Technology (POSTECH) , Pohang 37673 , Republic of Korea
| | - Yongjin Kim
- Division of Advanced Materials Science , Pohang University of Science and Technology (POSTECH) , Pohang 37673 , Republic of Korea
- Nano & Interface Research Team , Pohang Accelerator Laboratory , Pohang 37673 , Republic of Korea
| | - Ethan J Crumlin
- Advanced Light Source , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
| | - Donghwa Lee
- Department of Materials Science and Engineering , Pohang University of Science and Technology (POSTECH) , Pohang 37673 , Republic of Korea
- Division of Advanced Materials Science , Pohang University of Science and Technology (POSTECH) , Pohang 37673 , Republic of Korea
| | - Kyuwook Ihm
- Nano & Interface Research Team , Pohang Accelerator Laboratory , Pohang 37673 , Republic of Korea
| | - Junwoo Son
- Department of Materials Science and Engineering , Pohang University of Science and Technology (POSTECH) , Pohang 37673 , Republic of Korea
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39
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Chen Y, Shao Z, Yang Y, Zhao S, Tao Y, Yao H, Luo H, Cao X, Jin P. Electrons-Donating Derived Dual-Resistant Crust of VO 2 Nano-Particles via Ascorbic Acid Treatment for Highly Stable Smart Windows Applications. ACS APPLIED MATERIALS & INTERFACES 2019; 11:41229-41237. [PMID: 31613588 DOI: 10.1021/acsami.9b11142] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Traditional vanadium dioxide (VO2) material faced severe challenges of low stability in acid, humid, and oxygenic environments, which hinder its real applications. Here, we report a facile improving process which can enhanced the stability of VO2 nanocrystals in the environments above. Ascorbic acid (AA), as an important antioxidant for organism in medicine and biology, was ingeniously used for enhancing the antioxidation abilities of inorganic material. At the same time, the AA could generate the hydrogen doping occurred on the surface of VO2 nanocrystals, which enhanced their Antiacid abilities simultaneously. The AA treated VO2 nanocrystals retain stable in H2SO4 and H2O2 solution and exhibit high durability in hyperthermal (60 °C) and humid (90%) environment. Characterizations and first-principles theoretical calculations confirmed that the coordination of ascorbic acid molecules on VO2 nanocrystals induced charge-carrier density reorganization and protons transferring electrostatically. Then the formed HxVO2 provides an enhancing formation energy for oxygen vacancy and protects the particles from corrosion. This work is beneficial to the VO2 nanoparticles coated and decorated processes and exhibit good potential for practical application of VO2-based smart windows.
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Affiliation(s)
- Yunxiang Chen
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics , Chinese Academy of Sciences , Dingxi 1295 , Changning, Shanghai , 200050 , P. R. China
- University of Chinese Academy of Sciences , Beijing , 100049 , P. R. China
| | - Zewei Shao
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics , Chinese Academy of Sciences , Dingxi 1295 , Changning, Shanghai , 200050 , P. R. China
- University of Chinese Academy of Sciences , Beijing , 100049 , P. R. China
| | - Yi Yang
- CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering and Collaborative Innovation Center of Suzhou Nano Science and Technology , University of Science and Technology of China , Hefei , Anhui 230023 , P. R. China
| | - Shuwen Zhao
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics , Chinese Academy of Sciences , Dingxi 1295 , Changning, Shanghai , 200050 , P. R. China
- University of Chinese Academy of Sciences , Beijing , 100049 , P. R. China
| | - Ying Tao
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics , Chinese Academy of Sciences , Dingxi 1295 , Changning, Shanghai , 200050 , P. R. China
- School of Materials Science and Engineering , Shanghai University , Shangda Road. 99 , Baoshan, Shanghai 200444 , P. R. China
| | - Heliang Yao
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics , Chinese Academy of Sciences , Dingxi 1295 , Changning, Shanghai , 200050 , P. R. China
| | - Hongjie Luo
- School of Materials Science and Engineering , Shanghai University , Shangda Road. 99 , Baoshan, Shanghai 200444 , P. R. China
| | - Xun Cao
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics , Chinese Academy of Sciences , Dingxi 1295 , Changning, Shanghai , 200050 , P. R. China
- University of Chinese Academy of Sciences , Beijing , 100049 , P. R. China
| | - Ping Jin
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics , Chinese Academy of Sciences , Dingxi 1295 , Changning, Shanghai , 200050 , P. R. China
- University of Chinese Academy of Sciences , Beijing , 100049 , P. R. China
- Materials Research Institute for Sustainable Development , National Institute of Advanced Industrial Science and Technology , Nagoya 463-8560 , Japan
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40
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Liu T, Fu B, Zhang DH. Six-dimensional potential energy surfaces for the dissociative chemisorption of HCl on rigid Ag(100) and Ag(110) surfaces. J Chem Phys 2019; 151:144707. [DOI: 10.1063/1.5122218] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Tianhui Liu
- State Key Laboratory of Molecular Reaction Dynamics and Center for Theoretical and Computational Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
| | - Bina Fu
- State Key Laboratory of Molecular Reaction Dynamics and Center for Theoretical and Computational Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
| | - Dong H. Zhang
- State Key Laboratory of Molecular Reaction Dynamics and Center for Theoretical and Computational Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
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41
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Li B, Xie L, Wang Z, Chen S, Ren H, Chen Y, Wang C, Zhang G, Jiang J, Zou C. Electron–Proton Co‐doping‐Induced Metal–Insulator Transition in VO
2
Film via Surface Self‐Assembled
l
‐Ascorbic Acid Molecules. Angew Chem Int Ed Engl 2019; 58:13711-13716. [DOI: 10.1002/anie.201904148] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Revised: 07/08/2019] [Indexed: 11/10/2022]
Affiliation(s)
- Bowen Li
- National Synchrotron Radiation LaboratoryUniversity of Science and Technology of China Hefei 230029 China
| | - Liyan Xie
- Hefei National Laboratory for Physical Sciences at the MicroscaleCollaborative Innovation Center of Chemistry for Energy MaterialsCAS Center for Excellence in NanoscienceSchool of Chemistry and Materials ScienceUniversity of Science and Technology of China Hefei Anhui 230026 P. R. China
| | - Zhaowu Wang
- School of Physics and EngineeringHenan University of Science and TechnologyHenan Key Laboratory of Photoelectric Energy Storage Materials and Applications Luoyang Henan 471023 China
| | - Shi Chen
- National Synchrotron Radiation LaboratoryUniversity of Science and Technology of China Hefei 230029 China
| | - Hui Ren
- National Synchrotron Radiation LaboratoryUniversity of Science and Technology of China Hefei 230029 China
| | - Yuliang Chen
- National Synchrotron Radiation LaboratoryUniversity of Science and Technology of China Hefei 230029 China
| | - Chengming Wang
- Hefei National Laboratory for Physical Sciences at the MicroscaleCollaborative Innovation Center of Chemistry for Energy MaterialsCAS Center for Excellence in NanoscienceSchool of Chemistry and Materials ScienceUniversity of Science and Technology of China Hefei Anhui 230026 P. R. China
| | - Guobin Zhang
- National Synchrotron Radiation LaboratoryUniversity of Science and Technology of China Hefei 230029 China
| | - Jun Jiang
- Hefei National Laboratory for Physical Sciences at the MicroscaleCollaborative Innovation Center of Chemistry for Energy MaterialsCAS Center for Excellence in NanoscienceSchool of Chemistry and Materials ScienceUniversity of Science and Technology of China Hefei Anhui 230026 P. R. China
| | - Chongwen Zou
- National Synchrotron Radiation LaboratoryUniversity of Science and Technology of China Hefei 230029 China
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42
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Li B, Xie L, Wang Z, Chen S, Ren H, Chen Y, Wang C, Zhang G, Jiang J, Zou C. Electron–Proton Co‐doping‐Induced Metal–Insulator Transition in VO
2
Film via Surface Self‐Assembled
l
‐Ascorbic Acid Molecules. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201904148] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Bowen Li
- National Synchrotron Radiation LaboratoryUniversity of Science and Technology of China Hefei 230029 China
| | - Liyan Xie
- Hefei National Laboratory for Physical Sciences at the MicroscaleCollaborative Innovation Center of Chemistry for Energy MaterialsCAS Center for Excellence in NanoscienceSchool of Chemistry and Materials ScienceUniversity of Science and Technology of China Hefei Anhui 230026 P. R. China
| | - Zhaowu Wang
- School of Physics and EngineeringHenan University of Science and TechnologyHenan Key Laboratory of Photoelectric Energy Storage Materials and Applications Luoyang Henan 471023 China
| | - Shi Chen
- National Synchrotron Radiation LaboratoryUniversity of Science and Technology of China Hefei 230029 China
| | - Hui Ren
- National Synchrotron Radiation LaboratoryUniversity of Science and Technology of China Hefei 230029 China
| | - Yuliang Chen
- National Synchrotron Radiation LaboratoryUniversity of Science and Technology of China Hefei 230029 China
| | - Chengming Wang
- Hefei National Laboratory for Physical Sciences at the MicroscaleCollaborative Innovation Center of Chemistry for Energy MaterialsCAS Center for Excellence in NanoscienceSchool of Chemistry and Materials ScienceUniversity of Science and Technology of China Hefei Anhui 230026 P. R. China
| | - Guobin Zhang
- National Synchrotron Radiation LaboratoryUniversity of Science and Technology of China Hefei 230029 China
| | - Jun Jiang
- Hefei National Laboratory for Physical Sciences at the MicroscaleCollaborative Innovation Center of Chemistry for Energy MaterialsCAS Center for Excellence in NanoscienceSchool of Chemistry and Materials ScienceUniversity of Science and Technology of China Hefei Anhui 230026 P. R. China
| | - Chongwen Zou
- National Synchrotron Radiation LaboratoryUniversity of Science and Technology of China Hefei 230029 China
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43
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Kim JE, Shin JY, Jang HS, Jeon JW, Hong WG, Kim HJ, Choi J, Kim GT, Kim BH, Park J, Choi YJ, Park JY. Influence of hydrogen incorporation on conductivity and work function of VO 2 nanowires. NANOSCALE 2019; 11:4219-4225. [PMID: 30806433 DOI: 10.1039/c9nr00245f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
We report improved conductance by reducing the work function via incorporation of hydrogen into VO2 nanowires. The VO2 nanowires were prepared using the chemical vapor deposition method with V2O5 powder on silicon substrates at 850 °C. Hydrogenation was carried out using the high-pressure hydrogenation method. Raman spectroscopy confirmed that the incorporated hydrogen atoms resulted in a change in the lattice constant of the VO2 nanowires (NWs). To quantitatively measure the work function of the nanowires, Kelvin probe force microscopy (KPFM) was employed at ambient conditions. We found that the work function decreased with increasing H2 pressure, which also resulted in increased conductance. This is associated with hydrogen diffused into the VO2 that acts as a donor to elevate the Fermi level, which was also confirmed by KPFM. From these results, tuning of the reversible electrical properties of VO2 NWs, including the conductance and work function, can be achieved by incorporating hydrogen at relatively moderate temperatures.
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Affiliation(s)
- Jae-Eun Kim
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Daejeon, 34141, Republic of Korea.
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44
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Chen S, Wang Z, Ren H, Chen Y, Yan W, Wang C, Li B, Jiang J, Zou C. Gate-controlled VO 2 phase transition for high-performance smart windows. SCIENCE ADVANCES 2019; 5:eaav6815. [PMID: 30931391 PMCID: PMC6435443 DOI: 10.1126/sciadv.aav6815] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Accepted: 01/30/2019] [Indexed: 05/13/2023]
Abstract
Vanadium dioxide (VO2) is a promising material for developing energy-saving "smart windows," owing to its infrared thermochromism induced by metal-insulator transition (MIT). However, its practical application is greatly limited by its relatively high critical temperature (~68°C), low luminous transmittance (<60%), and poor solar energy regulation ability (<15%). Here, we developed a reversible and nonvolatile electric field control of the MIT of a monoclinic VO2 film. With a solid electrolyte layer assisting gating treatment, we modulated the insertion/extraction of hydrogen into/from the VO2 lattice at room temperature, causing tristate phase transitions that enable control of light transmittance. The dramatic increase in visible/infrared transmittance due to the phase transition from the metallic (lightly H-doped) to the insulating (heavily H-doped) phase results in an increased solar energy regulation ability up to 26.5%, while maintaining 70.8% visible luminous transmittance. These results break all previous records and exceed the theoretical limit for traditional VO2 smart windows, making them ready for energy-saving utilization.
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Affiliation(s)
- Shi Chen
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China
| | - Zhaowu Wang
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Center for Excellence in Nanoscience, CAS Key Laboratory of Mechanical Behavior and Design of Materials, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, China
- School of Physics and Engineering, Henan University of Science and Technology, Henan Key Laboratory of Photoelectric Energy Storage Materials and Applications, Luoyang, Henan 471023, China
| | - Hui Ren
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China
| | - Yuliang Chen
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China
| | - Wensheng Yan
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China
| | - Chengming Wang
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Center for Excellence in Nanoscience, CAS Key Laboratory of Mechanical Behavior and Design of Materials, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Bowen Li
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China
| | - Jun Jiang
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Center for Excellence in Nanoscience, CAS Key Laboratory of Mechanical Behavior and Design of Materials, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, China
- Corresponding author. (J.J.); (C.Z.)
| | - Chongwen Zou
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China
- Corresponding author. (J.J.); (C.Z.)
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45
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Gerrits N, Kroes GJ. An AIMD study of dissociative chemisorption of methanol on Cu(111) with implications for formaldehyde formation. J Chem Phys 2019; 150:024706. [DOI: 10.1063/1.5070129] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Nick Gerrits
- Leiden Institute of Chemistry, Gorlaeus Laboratories, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands
| | - Geert-Jan Kroes
- Leiden Institute of Chemistry, Gorlaeus Laboratories, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands
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46
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Wang S, Zhao X, Yan X, Xiao Z, Liu C, Zhang Y, Yang X. Regulating Fast Anionic Redox for High-Voltage Aqueous Hydrogen-Ion-based Energy Storage. Angew Chem Int Ed Engl 2018; 58:205-210. [DOI: 10.1002/anie.201811220] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Revised: 10/28/2018] [Indexed: 11/08/2022]
Affiliation(s)
- Shengping Wang
- School of Materials Science and Engineering, Interdisciplinary Materials Research Center; Key Laboratory of Advanced Civil Engineering Materials; Ministry of Education); Tongji University; Shanghai 201804 China
| | - Xiaoli Zhao
- School of Materials Science and Engineering, Interdisciplinary Materials Research Center; Key Laboratory of Advanced Civil Engineering Materials; Ministry of Education); Tongji University; Shanghai 201804 China
| | - Xiaojun Yan
- School of Materials Science and Engineering, Interdisciplinary Materials Research Center; Key Laboratory of Advanced Civil Engineering Materials; Ministry of Education); Tongji University; Shanghai 201804 China
| | - Ziwei Xiao
- School of Materials Science and Engineering, Interdisciplinary Materials Research Center; Key Laboratory of Advanced Civil Engineering Materials; Ministry of Education); Tongji University; Shanghai 201804 China
| | - Congcong Liu
- School of Materials Science and Engineering, Interdisciplinary Materials Research Center; Key Laboratory of Advanced Civil Engineering Materials; Ministry of Education); Tongji University; Shanghai 201804 China
| | - Yijie Zhang
- School of Materials Science and Engineering, Interdisciplinary Materials Research Center; Key Laboratory of Advanced Civil Engineering Materials; Ministry of Education); Tongji University; Shanghai 201804 China
| | - Xiaowei Yang
- School of Materials Science and Engineering, Interdisciplinary Materials Research Center; Key Laboratory of Advanced Civil Engineering Materials; Ministry of Education); Tongji University; Shanghai 201804 China
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47
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Wang S, Zhao X, Yan X, Xiao Z, Liu C, Zhang Y, Yang X. Regulating Fast Anionic Redox for High-Voltage Aqueous Hydrogen-Ion-based Energy Storage. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201811220] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Shengping Wang
- School of Materials Science and Engineering, Interdisciplinary Materials Research Center; Key Laboratory of Advanced Civil Engineering Materials; Ministry of Education); Tongji University; Shanghai 201804 China
| | - Xiaoli Zhao
- School of Materials Science and Engineering, Interdisciplinary Materials Research Center; Key Laboratory of Advanced Civil Engineering Materials; Ministry of Education); Tongji University; Shanghai 201804 China
| | - Xiaojun Yan
- School of Materials Science and Engineering, Interdisciplinary Materials Research Center; Key Laboratory of Advanced Civil Engineering Materials; Ministry of Education); Tongji University; Shanghai 201804 China
| | - Ziwei Xiao
- School of Materials Science and Engineering, Interdisciplinary Materials Research Center; Key Laboratory of Advanced Civil Engineering Materials; Ministry of Education); Tongji University; Shanghai 201804 China
| | - Congcong Liu
- School of Materials Science and Engineering, Interdisciplinary Materials Research Center; Key Laboratory of Advanced Civil Engineering Materials; Ministry of Education); Tongji University; Shanghai 201804 China
| | - Yijie Zhang
- School of Materials Science and Engineering, Interdisciplinary Materials Research Center; Key Laboratory of Advanced Civil Engineering Materials; Ministry of Education); Tongji University; Shanghai 201804 China
| | - Xiaowei Yang
- School of Materials Science and Engineering, Interdisciplinary Materials Research Center; Key Laboratory of Advanced Civil Engineering Materials; Ministry of Education); Tongji University; Shanghai 201804 China
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48
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Hope MA, Griffith KJ, Cui B, Gao F, Dutton SE, Parkin SSP, Grey CP. The Role of Ionic Liquid Breakdown in the Electrochemical Metallization of VO2: An NMR Study of Gating Mechanisms and VO2 Reduction. J Am Chem Soc 2018; 140:16685-16696. [DOI: 10.1021/jacs.8b09513] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Michael A. Hope
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
| | - Kent J. Griffith
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
| | - Bin Cui
- Max Planck Institute of Microstructure Physics, Halle (Saale) D-06120, Germany
| | - Fang Gao
- Max Planck Institute of Microstructure Physics, Halle (Saale) D-06120, Germany
| | - Siân E. Dutton
- Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, U.K
| | - Stuart S. P. Parkin
- Max Planck Institute of Microstructure Physics, Halle (Saale) D-06120, Germany
| | - Clare P. Grey
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
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49
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Chen Y, Zhang Y, Wang Z, Zhan T, Wang YC, Zou H, Ren H, Zhang G, Zou C, Wang ZL. Dynamic Electronic Doping for Correlated Oxides by a Triboelectric Nanogenerator. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1803580. [PMID: 30239043 DOI: 10.1002/adma.201803580] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Revised: 08/25/2018] [Indexed: 06/08/2023]
Abstract
The metal-insulator transition of vanadium dioxide (VO2 ) is exceptionally sensitive to charge density and electron orbital occupancy. Thus three-terminal field-effect transistors with VO2 channels are widely adopted to control the phase transition by external gating voltage. However, current leakage, electrical breakdown, or interfacial electrochemical reactions may be inevitable if conventional solid dielectrics or ionic-liquid layers are used, which possibly induce Joule heating or doping in the VO2 layer and make the voltage-controlled phase transition more complex. Here, a triboelectric nanogenerator (TENG) and a VO2 film are combined for a novel TENG-VO2 device, which can overcome the abovementioned challenges and achieve electron-doping-induced phase modulation. By taking advantage of the TENG structure, electrons can be induced in the VO2 channel and thus adjust the electronic states of the VO2 , simultaneously. The modulation degree of the VO2 resistance depends on the temperature, and the major variation occurs when the temperature is in the phase-transition region. The accumulation of electrons in the VO2 channel also is simulated by finite element analysis, and the electron doping mechanism is verified by theoretical calculations. The results provide a promising approach to develop a novel type of tribotronic transistor and new electronic doping technology.
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Affiliation(s)
- Yuliang Chen
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332-0245, USA
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, 230029, China
| | - Ying Zhang
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332-0245, USA
- Key Laboratory of Thermo-Fluid Science and Engineering, Ministry of Education, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Zhaowu Wang
- School of Physics and Engineering, Henan Key Laboratory of Photoelectric Energy Storage Materials and Applications, Henan University of Science and Technology, Luoyang, 471023, China
- National Laboratory of Solid State Microstructures, Nanjing University, Nanjing, 210093, China
| | - Taotao Zhan
- Key Laboratory of Thermo-Fluid Science and Engineering, Ministry of Education, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Yi-Cheng Wang
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332-0245, USA
- Department of Food Science and Human Nutrition, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Haiyang Zou
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332-0245, USA
| | - Hui Ren
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, 230029, China
| | - Guobin Zhang
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, 230029, China
| | - Chongwen Zou
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, 230029, China
| | - Zhong Lin Wang
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332-0245, USA
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 100085, China
- College of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
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50
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Yang Y, Yao Y, Zhang B, Lin H, Luo Z, Gao C, Zhang C, Kang C. Investigating Metal⁻Insulator Transition and Structural Phase Transformation in the (010)-VO₂/(001)-YSZ Epitaxial Thin Films. MATERIALS 2018; 11:ma11091713. [PMID: 30217052 PMCID: PMC6163228 DOI: 10.3390/ma11091713] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2018] [Revised: 09/05/2018] [Accepted: 09/11/2018] [Indexed: 11/16/2022]
Abstract
The VO2 thin films with sharp metal–insulator transition (MIT) were epitaxially grown on (001)-oriented Yttria-stabilized zirconia substrates (YSZ) using radio-frequency (RF) magnetron sputtering techniques. The MIT and structural phase transition (SPT) were comprehensively investigated under in situ temperature conditions. The amplitude of MIT is in the order of magnitude of 104, and critical temperature is 342 K during the heating cycle. It is interesting that both electron concentration and mobility are changed by two orders of magnitude across the MIT. This research is distinctively different from previous studies, which found that the electron concentration solely contributes to the amplitude of the MIT, although the electron mobility does not. Analysis of the SPT showed that the (010)-VO2/(001)-YSZ epitaxial thin film presents a special multi-domain structure, which is probably due to the symmetry matching and lattice mismatch between the VO2 and YSZ substrate. The VO2 film experiences the SPT from the M1 phase at low temperature to a rutile phase at a high temperature. Moreover, the SPT occurs at the same critical temperature as that of the MIT. This work may shed light on a new MIT behavior and may potentially pave the way for preparing high-quality VO2 thin films on cost-effective YSZ substrates for photoelectronic applications.
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Affiliation(s)
- Yuanjun Yang
- School of Electronic Science and Applied Physics, Hefei University of Technology, Hefei 230009, China.
| | - Yingxue Yao
- School of Electronic Science and Applied Physics, Hefei University of Technology, Hefei 230009, China.
| | - Benjian Zhang
- School of Electronic Science and Applied Physics, Hefei University of Technology, Hefei 230009, China.
| | - Hui Lin
- School of Electronic Science and Applied Physics, Hefei University of Technology, Hefei 230009, China.
| | - Zhenlin Luo
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230026, China.
| | - Chen Gao
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230026, China.
| | - Cong Zhang
- School of Physics and Electronic Information, Henan Polytechnic University, Jiaozuo 454000, China.
| | - Chaoyang Kang
- School of Physics and Electronic Information, Henan Polytechnic University, Jiaozuo 454000, China.
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