1
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Liu J, Zeng L, Xu X, Xu J, Fang X, Bian Y, Wang X. Elucidating Ru Distribution State of Ru‐Promoted Pr2Sn2O7 Pyrochlore and its Effect on the Catalytic Performance for Toluene Deep Oxidation. ChemCatChem 2022. [DOI: 10.1002/cctc.202101969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jianjun Liu
- Nanchang University - Qianhu Campus: Nanchang University College of Chemistry CHINA
| | - Lanling Zeng
- Nanchang University - Qianhu Campus: Nanchang University College of Chemistry CHINA
| | - Xianglan Xu
- Nanchang University - Qianhu Campus: Nanchang University College of Chemistry CHINA
| | - Junwei Xu
- Nanchang University - Qianhu Campus: Nanchang University College of Chemistry CHINA
| | - Xiuzhong Fang
- Nanchang University - Qianhu Campus: Nanchang University College of Chemistry CHINA
| | - Yijun Bian
- Jiangxi Baoan New Material Technology Corporation ,LTD Laboratory CHINA
| | - Xiang Wang
- Nanchang University - Qianhu Campus: Nanchang University College of Chemistry 999 Xuefu RoadHonggutan New District 330031 Nanchang CHINA
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2
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Fang Y, Shao T, Zhang L, Sui L, Wu G, Yuan K, Wang K, Zou B. Harvesting High-Quality White-Light Emitting and Remarkable Emission Enhancement in One-Dimensional Halide Perovskites Upon Compression. JACS AU 2021; 1:459-466. [PMID: 34467308 PMCID: PMC8395689 DOI: 10.1021/jacsau.1c00024] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Indexed: 06/13/2023]
Abstract
The pressure induced emission (PIE) behavior of halide perovskites has attracted extensive interest due to its potential application in pressure sensors and trademark security. However, the PIE phenomenon of white-light-emitting hybrid perovskites (WHPs) is rare, and that at pressures above 10.0 GPa has never been reported. Here, we effectively adjusted the perovskite to emit high-quality "cold" or "warm" white light and successfully realized pressure-induced emission (PIE) upon even higher pressure up to 35.1 GPa in one-dimensional halide perovskite C4N2H14PbCl4. We reveal that the degree of structural distortion and the rearrangement of the multiple self-trapped states position are consistent with the intriguing photoluminescence variation, which is further supported by in situ high-pressure synchrotron X-ray diffraction experiments and time-resolved photoluminescence decay dynamics data. The underlying relationship between octahedron behavior and emission plays a key role to obtain high-quality white emission perovskites. We anticipate that this work enhances our understanding of structure-dependent self-trapped exciton (STE) emission characteristics and stimulates the design of high-performance WHPs for next generation white LED lighting devices.
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Affiliation(s)
- Yuanyuan Fang
- State
Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
| | - Tianyin Shao
- State
Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
| | - Long Zhang
- State
Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
| | - Laizhi Sui
- State
Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Guorong Wu
- State
Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Kaijun Yuan
- State
Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Kai Wang
- State
Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
| | - Bo Zou
- State
Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
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3
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Wang CH, Kayser P, Kennedy BJ, Maynard-Casely HE, Gu Q, Ling CD. Squeezing electrons out of 6s 2 lone-pairs in perovskite-type oxides. Chem Commun (Camb) 2019; 55:3887-3890. [PMID: 30882112 DOI: 10.1039/c8cc09608b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Having identified a set of conditions that predispose a solid-state ionic compound to a pressure-induced valence transition, we investigated a series of Bi(iii) perovskite oxides. We found such a transition below 10 GPa in every case, including one that we synthesised for the first time (double perovskite-type Ba2BiOsO6).
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Affiliation(s)
- Chun-Hai Wang
- School of Chemistry, The University of Sydney, Sydney 2006, Australia.
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4
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Li H, Zhao Q, Liu BM, Zhang JY, Li ZY, Guo SQ, Ma JP, Kuroiwa Y, Moriyoshi C, Zheng LR, Sun HT. Transformation of Perovskite BaBiO 3 into Layered BaBiO 2.5 Crystals Featuring Unusual Chemical Bonding and Luminescence. Chemistry 2018; 24:8875-8882. [PMID: 29655241 DOI: 10.1002/chem.201801257] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Revised: 04/09/2018] [Indexed: 11/09/2022]
Abstract
Engineering oxygen coordination environments of cations in oxides has received intense interest thanks to the opportunities for the discovery of novel oxides with unusual properties. Herein, the synthesis of stoichiometric layered BaBiO2.5 by a nontopotactic phase transformation of perovskite BaBiO3 is presented. By analyzing the synchrotron X-ray diffraction data by the maximum-entropy method/Rietveld technique, it was found that Bi is involved in an unusual chemical bonding situation with four oxygen atoms featuring one ionic bond and three covalent bonds, which results in an asymmetric coordination geometry. Photophysical characterization revealed that this peculiar structure shows near-infrared luminescence differing from that of conventional Bi-containing compounds. Experimental and theoretical results led to the proposal of an excitonic nature of the luminescence. This work highlights that synthesizing materials with uncommon Bi-O bonding and Bi coordination geometry provides a pathway to the discovery of systems with new functionalities. This could inspire interest in the exploration of a range of materials containing heavier p-block elements with prospects for finding systems with unusual properties.
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Affiliation(s)
- Hong Li
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P.R. China
| | - Qing Zhao
- Department of Physical Science, Hiroshima University, Higashihiroshima, Hiroshima, 739-8526, Japan
| | - Bo-Mei Liu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P.R. China
| | - Jun-Ying Zhang
- Department of Physics, Beihang University, Beijing, 100191, P.R. China
| | - Zhi-Yong Li
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P.R. China
| | - Shao-Qiang Guo
- Department of Physics, Beihang University, Beijing, 100191, P.R. China
| | - Ju-Ping Ma
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P.R. China
| | - Yoshihiro Kuroiwa
- Department of Physical Science, Hiroshima University, Higashihiroshima, Hiroshima, 739-8526, Japan
| | - Chikako Moriyoshi
- Department of Physical Science, Hiroshima University, Higashihiroshima, Hiroshima, 739-8526, Japan
| | - Li-Rong Zheng
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, P.R. China
| | - Hong-Tao Sun
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P.R. China
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5
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Jiao CQ, Jiang WJ, Meng YS, Wen W, Zhao L, Wang JL, Hu JX, Gurzadyan GG, Duan CY, Liu T. Manipulation of successive crystalline transformations to control electron transfer and switchable functions. Natl Sci Rev 2018. [DOI: 10.1093/nsr/nwy033] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
ABSTRACT
Electron transfer in solid is crucial to switchable magnetic, electrical, optical and mechanical properties. However, it is a formidable challenge to control electron-transfer behaviors via manipulation of crystalline phases, especially through dynamic crystalline transformation. Herein, three crystalline phases of an {Fe2Co2} compound were obtained via enhancement of intermolecular π···π interactions inducing successive single-crystal-to-single-crystal transformations, from solvated 1·2CH3OH·4H2O, to desolvated 1 and its polymorph 1a accompanying electron transfer. 1·2CH3OH·4H2O showed thermally induced reversible intermetallic electron transfer in mother liquor. No electron-transfer behavior was observed in 1. 1a showed reversible intermetallic electron transfer upon thermal treatment or alternative irradiation with 808- and 532-nm lasers at cryogenic temperatures. The electron-transfer behaviors significantly change the magnetic and optical properties, providing a strategy to realize different electron-transfer behaviors and switchable functions via π···π interactions manipulated dynamic crystalline transformation.
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Affiliation(s)
- Cheng-Qi Jiao
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
| | - Wen-Jing Jiang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
| | - Yin-Shan Meng
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
| | - Wen Wen
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
| | - Liang Zhao
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
| | - Jun-Li Wang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
| | - Ji-Xiang Hu
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
| | - Gagik G Gurzadyan
- Institute of Artificial Photosynthesis, State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
| | - Chun-Ying Duan
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
| | - Tao Liu
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
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6
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Azuma M, Sakai Y, Nishikubo T, Mizumaki M, Watanuki T, Mizokawa T, Oka K, Hojo H, Naka M. Systematic charge distribution changes in Bi- and Pb-3d transition metal perovskites. Dalton Trans 2018; 47:1371-1377. [DOI: 10.1039/c7dt03244g] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Charge distribution changes in Bi- and Pb-3d transition metal perovskite type oxides were examined. The change in the depth of the d level of the transition metal causes the intermetallic charge transfer.
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Affiliation(s)
- Masaki Azuma
- Laboratory for Materials and Structures
- Tokyo Institute of Technology
- Yokohama
- 226-8503 Japan
| | - Yuki Sakai
- Kanagawa Institute of Industrial Science and Technology
- Ebina
- Japan
| | - Takumi Nishikubo
- Laboratory for Materials and Structures
- Tokyo Institute of Technology
- Yokohama
- 226-8503 Japan
| | | | - Tetsu Watanuki
- Synchrotron Radiation Research Center
- National Institutes for Quantum and Radiological Science and Technology
- Hyogo 679-5148
- Japan
| | - Takashi Mizokawa
- Department of Applied Physics
- School of Advanced Science and Engineering
- Waseda University
- Tokyo 169-8555
- Japan
| | - Kengo Oka
- Department of Applied Chemistry
- Faculty of Science and Engineering
- Chuo University
- Tokyo 112-8551
- Japan
| | - Hajime Hojo
- Department of Energy and Material Science
- Kyushu University
- Kasuga 816-8580
- Japan
| | - Makoto Naka
- Department of Applied Physics
- School of Advanced Science and Engineering
- Waseda University
- Tokyo 169-8555
- Japan
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7
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Ovsyannikov SV, Bykova E, Pakhomova A, Kozlenko DP, Bykov M, Kichanov SE, Morozova NV, Korobeinikov IV, Wilhelm F, Rogalev A, Tsirlin AA, Kurnosov AV, Zainulin YG, Kadyrova NI, Tyutyunnik AP, Dubrovinsky L. Structural and Magnetic Transitions in CaCo 3V 4O 12 Perovskite at Extreme Conditions. Inorg Chem 2017; 56:6251-6263. [PMID: 28520414 DOI: 10.1021/acs.inorgchem.7b00330] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We investigated the structural, vibrational, magnetic, and electronic properties of the recently synthesized CaCo3V4O12 double perovskite with the high-spin (HS) Co2+ ions in a square-planar oxygen coordination at extreme conditions of high pressures and low temperatures. The single-crystal X-ray diffraction and Raman spectroscopy studies up to 60 GPa showed a conservation of its cubic crystal structure but indicated a crossover near 30 GPa. Above 30 GPa, we observed both an abnormally high "compressibility" of the Co-O bonds in the square-planar oxygen coordination and a huge anisotropic displacement of HS-Co2+ ions in the direction perpendicular to the oxygen planes. Although this effect is reminiscent of a continuous HS → LS transformation of the Co2+ ions, it did not result in the anticipated shrinkage of the cell volume because of a certain "stiffing" of the bonds of the Ca and V cations. We verified that the oxidation states of all the cations did not change across this crossover, and hence, no charge-transfer effects were involved. Consequently, we proposed that CaCo3V4O12 could undergo a phase transition at which the large HS-Co2+ ions were pushed out of the oxygen planes because of lattice compression. The antiferromagnetic transition in CaCo3V4O12 at 100 K was investigated by neutron powder diffraction at ambient pressure. We established that the magnetic moments of the Co2+ ions were aligned along one of the cubic axes, and the magnetic structure had a 2-fold periodicity along this axis, compared to the crystallographic one.
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Affiliation(s)
- Sergey V Ovsyannikov
- Bayerisches Geoinstitut, Universität Bayreuth , Universitätsstrasse 30, Bayreuth D-95447, Germany.,Institute for Solid State Chemistry of Russian Academy of Sciences , Urals Division, 91 Pervomayskaya Str., Yekaterinburg 620990, Russia
| | - Elena Bykova
- Bayerisches Geoinstitut, Universität Bayreuth , Universitätsstrasse 30, Bayreuth D-95447, Germany.,Deutsches Elektronen-Synchrotron (DESY) , D-22603 Hamburg, Germany
| | - Anna Pakhomova
- Bayerisches Geoinstitut, Universität Bayreuth , Universitätsstrasse 30, Bayreuth D-95447, Germany.,Deutsches Elektronen-Synchrotron (DESY) , D-22603 Hamburg, Germany
| | - Denis P Kozlenko
- Frank Laboratory of Neutron Physics, JINR , 141980 Dubna, Russia
| | - Maxim Bykov
- Bayerisches Geoinstitut, Universität Bayreuth , Universitätsstrasse 30, Bayreuth D-95447, Germany
| | | | - Natalia V Morozova
- Institute of Metal Physics of Russian Academy of Sciences , Urals Division, GSP-170, 18 S. Kovalevskaya Str., Yekaterinburg 620990, Russia
| | - Igor V Korobeinikov
- Institute of Metal Physics of Russian Academy of Sciences , Urals Division, GSP-170, 18 S. Kovalevskaya Str., Yekaterinburg 620990, Russia
| | - Fabrice Wilhelm
- European Synchrotron Radiation Facility , 71, avenue des Martyrs CS 40220, 38043 Grenoble Cedex 9, France
| | - Andrei Rogalev
- European Synchrotron Radiation Facility , 71, avenue des Martyrs CS 40220, 38043 Grenoble Cedex 9, France
| | - Alexander A Tsirlin
- Experimental Physics VI, Center for Electronic Correlations and Magnetism, Institute of Physics, University of Augsburg , 86135 Augsburg, Germany
| | - Alexander V Kurnosov
- Bayerisches Geoinstitut, Universität Bayreuth , Universitätsstrasse 30, Bayreuth D-95447, Germany
| | - Yury G Zainulin
- Institute for Solid State Chemistry of Russian Academy of Sciences , Urals Division, 91 Pervomayskaya Str., Yekaterinburg 620990, Russia
| | - Nadezda I Kadyrova
- Institute for Solid State Chemistry of Russian Academy of Sciences , Urals Division, 91 Pervomayskaya Str., Yekaterinburg 620990, Russia
| | - Alexander P Tyutyunnik
- Institute for Solid State Chemistry of Russian Academy of Sciences , Urals Division, 91 Pervomayskaya Str., Yekaterinburg 620990, Russia
| | - Leonid Dubrovinsky
- Bayerisches Geoinstitut, Universität Bayreuth , Universitätsstrasse 30, Bayreuth D-95447, Germany
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8
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Blanchard PE, Chapman KW, Heald SM, Zbiri M, Johnson MR, Kennedy BJ, Ling CD. Direct Observation of Pressure-Driven Valence Electron Transfer in Ba3BiRu2O9, Ba3BiIr2O9, and Ba4BiIr3O12. Inorg Chem 2016; 55:5649-54. [DOI: 10.1021/acs.inorgchem.6b00718] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Peter E.R. Blanchard
- Canadian Light Source, 44 Innovation Boulevard, Saskatoon, Saskatchewan S7N 2V3, Canada
| | - Karena W. Chapman
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, United States
| | - Steve M. Heald
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, United States
| | - Mohamed Zbiri
- Institute Laue Langevin, 71 avenue des Martyrs, Grenoble 38042, France
| | - Mark R. Johnson
- Institute Laue Langevin, 71 avenue des Martyrs, Grenoble 38042, France
| | | | - Chris D. Ling
- School of Chemistry, The University of Sydney, Sydney 2006, Australia
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9
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Yu R, Hojo H, Watanuki T, Mizumaki M, Mizokawa T, Oka K, Kim H, Machida A, Sakaki K, Nakamura Y, Agui A, Mori D, Inaguma Y, Schlipf M, Rushchanskii KZ, Ležaić M, Matsuda M, Ma J, Calder S, Isobe M, Ikuhara Y, Azuma M. Melting of Pb Charge Glass and Simultaneous Pb–Cr Charge Transfer in PbCrO3 as the Origin of Volume Collapse. J Am Chem Soc 2015; 137:12719-28. [DOI: 10.1021/jacs.5b08216] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Runze Yu
- Materials
and Structures Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori, Yokohama, 226-8503, Japan
| | - Hajime Hojo
- Materials
and Structures Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori, Yokohama, 226-8503, Japan
| | - Tetsu Watanuki
- Quantum Beam Science Center, Japan Atomic Energy Agency, Sayo, Hyogo 679-5148, Japan
| | | | - Takashi Mizokawa
- Department
of Complexity Science and Engineering, University of Tokyo, Kashiwa, Chiba 277-8561, Japan
| | - Kengo Oka
- Materials
and Structures Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori, Yokohama, 226-8503, Japan
| | - Hyunjeong Kim
- National Institute of Advanced Industrial Science and Technology, Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
| | - Akihiko Machida
- Quantum Beam Science Center, Japan Atomic Energy Agency, Sayo, Hyogo 679-5148, Japan
| | - Kouji Sakaki
- National Institute of Advanced Industrial Science and Technology, Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
| | - Yumiko Nakamura
- National Institute of Advanced Industrial Science and Technology, Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
| | - Akane Agui
- Quantum Beam Science Center, Japan Atomic Energy Agency, Sayo, Hyogo 679-5148, Japan
| | - Daisuke Mori
- Department
of Chemistry, Faculty of Science, Gakushuin University, 1-5-1 Mejiro, Toshima, Tokyo 171-8588, Japan
| | - Yoshiyuki Inaguma
- Department
of Chemistry, Faculty of Science, Gakushuin University, 1-5-1 Mejiro, Toshima, Tokyo 171-8588, Japan
| | - Martin Schlipf
- Peter Grünberg Institut, Forschungszentrum Jülich and JARA, Jülich 52425, Germany
| | | | - Marjana Ležaić
- Peter Grünberg Institut, Forschungszentrum Jülich and JARA, Jülich 52425, Germany
| | - Masaaki Matsuda
- Quantum
Condensed Matter Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Jie Ma
- Quantum
Condensed Matter Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Stuart Calder
- Quantum
Condensed Matter Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Masahiko Isobe
- Institute
for Solid State Physics, University of Tokyo, Chiba 277-8581, Japan
| | - Yuichi Ikuhara
- Institute
of Engineering Innovation, University of Tokyo, Bunkyo, Tokyo 113-8656, Japan
| | - Masaki Azuma
- Materials
and Structures Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori, Yokohama, 226-8503, Japan
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10
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Yang J, Zhou L, Cheng J, Hu Z, Kuo C, Pao CW, Jang L, Lee JF, Dai J, Zhang S, Feng S, Kong P, Yuan Z, Yuan J, Uwatoko Y, Liu T, Jin C, Long Y. Charge Transfer Induced Multifunctional Transitions with Sensitive Pressure Manipulation in a Metal–Organic Framework. Inorg Chem 2015; 54:6433-8. [DOI: 10.1021/acs.inorgchem.5b00739] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Junye Yang
- Beijing
National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
- Collaborative Innovation Center of Quantum Matter, Beijing 100190, China
| | - Long Zhou
- Beijing
National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
- Collaborative Innovation Center of Quantum Matter, Beijing 100190, China
| | - Jinguang Cheng
- Beijing
National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
- Institute
for Solid State Physics, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8581, Japan
| | - Zhiwei Hu
- Max-Planck Institute for Chemical Physics of Solids, Nöthnitzer Straße 40, 01187 Dresden, Germany
| | - Changyang Kuo
- Max-Planck Institute for Chemical Physics of Solids, Nöthnitzer Straße 40, 01187 Dresden, Germany
| | - Chih-Wen Pao
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan, R.O.C
| | - Lingyun Jang
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan, R.O.C
| | - Jyh-Fu Lee
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan, R.O.C
| | - Jianhong Dai
- Beijing
National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Sijia Zhang
- Beijing
National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Shaomin Feng
- Beijing
National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Panpan Kong
- Beijing
National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Zhen Yuan
- Beijing
National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Jie Yuan
- Beijing
National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Yoshiya Uwatoko
- Institute
for Solid State Physics, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8581, Japan
| | - Tao Liu
- State Key
Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong
Rd., Dalian 116024, China
| | - Changqing Jin
- Beijing
National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
- Collaborative Innovation Center of Quantum Matter, Beijing 100190, China
| | - Youwen Long
- Beijing
National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
- Collaborative Innovation Center of Quantum Matter, Beijing 100190, China
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11
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Jaffe A, Lin Y, Mao WL, Karunadasa HI. Pressure-induced conductivity and yellow-to-black piezochromism in a layered Cu-Cl hybrid perovskite. J Am Chem Soc 2015; 137:1673-8. [PMID: 25580620 DOI: 10.1021/ja512396m] [Citation(s) in RCA: 105] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Pressure-induced changes in the electronic structure of two-dimensional Cu-based materials have been a subject of intense study. In particular, the possibility of suppressing the Jahn-Teller distortion of d(9) Cu centers with applied pressure has been debated over a number of decades. We studied the structural and electronic changes resulting from the application of pressures up to ca. 60 GPa on a two-dimensional copper(II)-chloride perovskite using diamond anvil cells (DACs), through a combination of in situ powder X-ray diffraction, electronic absorption and vibrational spectroscopy, dc resistivity measurements, and optical observations. Our measurements show that compression of this charge-transfer insulator initially yields a first-order structural phase transition at ca. 4 GPa similar to previous reports on other Cu(II)-Cl perovskites, during which the originally translucent yellow solid turns red. Further compression induces a previously unreported phase transition at ca. 8 GPa and dramatic piezochromism from translucent red-orange to opaque black. Two-probe dc resistivity measurements conducted within the DAC show the first instance of appreciable conductivity in Cu(II)-Cl perovskites. The conductivity increases by 5 orders of magnitude between 7 and 50 GPa, with a maximum measured conductivity of 2.9 × 10(-4) S·cm(-1) at 51.4 GPa. Electronic absorption spectroscopy and variable-temperature conductivity measurements indicate that the perovskite behaves as a 1.0 eV band-gap semiconductor at 39.7 GPa and has an activation energy for electronic conduction of 0.232(1) eV at 40.2 GPa. Remarkably, all these changes are reversible: the material reverts to a translucent yellow solid upon decompression, and ambient pressure powder X-ray diffraction data taken before and after compression up to 60 GPa show that the original structure is maintained with minimal hysteresis.
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Affiliation(s)
- Adam Jaffe
- Department of Chemistry and ‡Department of Geological and Environmental Sciences, Stanford University , Stanford, California 94305, United States
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12
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Zhao J, Meng A, Zhang M, Ren W, Li Z. Nitrogen content and morphology dependent field emission properties of nitrogen-doped SiC nanowires and density functional calculations. Phys Chem Chem Phys 2015; 17:28658-65. [DOI: 10.1039/c5cp04064g] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
N-Doped SiC NWs with varying N content have been synthesized via a one-step CVR, and they exhibit excellent FE properties.
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Affiliation(s)
- Jian Zhao
- Key Laboratory of Polymer Material Advanced Manufacturing Technology of Shandong Provincial
- Qingdao University of Science and Technology
- Qingdao 266061
- P. R. China
| | - Alan Meng
- State Key Laboratory Base of Eco-chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P. R. China
| | - Meng Zhang
- Key Laboratory of Polymer Material Advanced Manufacturing Technology of Shandong Provincial
- Qingdao University of Science and Technology
- Qingdao 266061
- P. R. China
| | - Weipeng Ren
- Key Laboratory of Polymer Material Advanced Manufacturing Technology of Shandong Provincial
- Qingdao University of Science and Technology
- Qingdao 266061
- P. R. China
- National Key Laboratory of Science and Technology on Advanced High Temperature Structural Materials
| | - Zhenjiang Li
- Key Laboratory of Polymer Material Advanced Manufacturing Technology of Shandong Provincial
- Qingdao University of Science and Technology
- Qingdao 266061
- P. R. China
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Huang Z, Avdeev M, Kennedy BJ, Knight KS, Zhou Q, Ling CD. Tuning the giant magnetoelastic transition in Ba3BiIr2O9 and Ba3BiRu2O9. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2014; 26:276003. [PMID: 24935268 DOI: 10.1088/0953-8984/26/27/276003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We have experimentally investigated the effects of pressure on the magnetoelastic transitions associated with the opening of spin-gaps in Ba3BiIr2O9 and Ba3BiRu2O9. For both compounds, reducing the unit cell volume by either external physical and internal chemical pressure was found to reduce the temperature T(*) of the transition and, to a lesser extent, the magnitude of the associated negative thermal volume expansion. The results yield the latent heat associated with the transitions, -3.34(3) × 10(2) J mol(-1) for Ba3BiIr2O9 and -7.1(5) × 10(2) J mol(-1) for Ba3BiRu2O9. The transition in Ba3BiRu2O9 is significantly more robust than in Ba3BiIr2O9, requiring an order of magnitude higher pressures to achieve the same reduction in T(*). The differing responses of the two compounds points to differences between the 4d and 5d metals and hence to the importance of spin-orbit coupling, which is expected to be much stronger in the Ir compound.
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Affiliation(s)
- Zixin Huang
- School of Chemistry, The University of Sydney, Sydney 2006, Australia
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