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Pressure-induced semiconductor-to-metal phase transition of a charge-ordered indium halide perovskite
- Lin, Jia (author)
- Chen, Hong (author)
- Gao, Yang (author)
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- Cai, Yao (author)
- Jin, Jianbo (author)
- Kang, Joohoon (author)
- Lei, Teng (author)
- Lin, Zhenni (author)
- Folgueras, Maria C. (author)
- Quan, Li Na (author)
- Kong, Qiao (author)
- Sherburne, Matthew (author)
- Asta, Mark (author)
- Toney, Michael F. (author)
- Wu, Junqiao (author)
- Yang, Peidong (author)
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- (creator_code:org_t)
- 2019-11-04
- 2019
- English.
- In: Proceedings of the National Academy of Sciences of the United States of America. - : Proceedings of the National Academy of Sciences. - 0027-8424 .- 1091-6490. ; 116:47, s. 23404-23409
- Journal article (peer-reviewed)
Abstract
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- Phase transitions in halide perovskites triggered by external stimuli generate significantly different material properties, providing a great opportunity for broad applications. Here, we demonstrate an In-based, charge-ordered (In+/In3+) inorganic halide perovskite with the composition of Cs2In(I)In(III)Cl-6 in which a pressure-driven semiconductor-to-metal phase transition exists. The single crystals, synthesized via a solid-state reaction method, crystallize in a distorted perovskite structure with space group I4/m with a = 17.2604(12) angstrom, c = 11.0113(16) angstrom if both the strong reflections and superstructures are considered. The supercell was further confirmed by rotation electron diffraction measurement. The pressure-induced semiconductor-to-metal phase transition was demonstrated by high-pressure Raman and absorbance spectroscopies and was consistent with theoretical modeling. This type of charge-ordered inorganic halide perovskite with a pressure-induced semiconductor-to-metal phase transition may inspire a range of potential applications.
Subject headings
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
Keyword
- charge ordered
- inorganic
- halide perovskite
- phase transition
- high pressure
Publication and Content Type
- ref (subject category)
- art (subject category)
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- Lin, Jia
- Chen, Hong
- Gao, Yang
- Cai, Yao
- Jin, Jianbo
- Etman, Ahmed S.
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- Kang, Joohoon
- Lei, Teng
- Lin, Zhenni
- Folgueras, Maria ...
- Quan, Li Na
- Kong, Qiao
- Sherburne, Matth ...
- Asta, Mark
- Sun, Junliang
- Toney, Michael F ...
- Wu, Junqiao
- Yang, Peidong
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- NATURAL SCIENCES
- NATURAL SCIENCES
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- Stockholm University
- Uppsala University
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