Pressure-induced semiconductor-to-metal phase transition of a charge-ordered indium halide perovskite.

Autor: Lin J; Department of Chemistry, University of California, Berkeley, CA 94720.; Department of Physics, Shanghai University of Electric Power, Shanghai 200090, China., Chen H; Department of Chemistry, University of California, Berkeley, CA 94720.; Stanford Synchrotron Radiation Lightsource, Stanford Linear Accelerator Center National Accelerator Laboratory, Menlo Park, CA 94025.; School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China., Gao Y; Department of Materials Science and Engineering, University of California, Berkeley, CA 94720.; Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720., Cai Y; Department of Materials Science and Engineering, University of California, Berkeley, CA 94720.; Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720., Jin J; Department of Chemistry, University of California, Berkeley, CA 94720., Etman AS; Department of Materials and Environmental Chemistry, Stockholm University, SE-10691 Stockholm, Sweden., Kang J; Department of Chemistry, University of California, Berkeley, CA 94720.; Kavli Energy NanoScience Institute, University of California, Berkeley, CA 94720.; Center for NanoMedicine, Institute for Basic Science, Seoul 34126, Korea.; Yonsei Institute for Basic Science, Yonsei University, Seoul 34126, Korea.; School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 16419, Korea., Lei T; Department of Chemistry, University of California, Berkeley, CA 94720., Lin Z; Department of Materials Science and Engineering, University of California, Berkeley, CA 94720.; Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720., Folgueras MC; Department of Materials Science and Engineering, University of California, Berkeley, CA 94720.; Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720., Quan LN; Department of Chemistry, University of California, Berkeley, CA 94720.; Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720., Kong Q; Department of Chemistry, University of California, Berkeley, CA 94720., Sherburne M; Department of Chemistry, University of California, Berkeley, CA 94720.; Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720., Asta M; Department of Chemistry, University of California, Berkeley, CA 94720.; Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720., Sun J; Department of Materials and Environmental Chemistry, Stockholm University, SE-10691 Stockholm, Sweden., Toney MF; Stanford Synchrotron Radiation Lightsource, Stanford Linear Accelerator Center National Accelerator Laboratory, Menlo Park, CA 94025., Wu J; Department of Materials Science and Engineering, University of California, Berkeley, CA 94720; wuj@berkeley.edu p_yang@berkeley.edu.; Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720., Yang P; Department of Chemistry, University of California, Berkeley, CA 94720; wuj@berkeley.edu p_yang@berkeley.edu.; Department of Materials Science and Engineering, University of California, Berkeley, CA 94720.; Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720.; Kavli Energy NanoScience Institute, University of California, Berkeley, CA 94720.
Jazyk: angličtina
Zdroj: Proceedings of the National Academy of Sciences of the United States of America [Proc Natl Acad Sci U S A] 2019 Nov 19; Vol. 116 (47), pp. 23404-23409. Date of Electronic Publication: 2019 Nov 04.
DOI: 10.1073/pnas.1907576116
Abstrakt: 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 + /In 3+ ) inorganic halide perovskite with the composition of Cs 2 In(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 I 4/ m with a = 17.2604(12) Å, c = 11.0113(16) Å 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.
Competing Interests: The authors declare no competing interest.
Databáze: MEDLINE
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