title: Enhanced Structural Stability and Photo Responsiveness of CH3NH3SnI3Perovskite via Pressure-Induced Amorphization and Recrystallization.
abstract: An organic-inorganic halide CH3NH3SnI3perovskite with significantly improved structural stability is obtained via pressure-induced amorphization and recrystallization. In situ high-pressure resistance measurements reveal an increased electrical conductivity by 300% in the pressure-treated perovskite. Photocurrent measurements also reveal a substantial enhancement in visible-light responsiveness. The mechanism underlying the enhanced properties is shown to be associated with the pressure-induced structural modification.
authors: Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA.|Earth and Environmental Sciences Division, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA.
authors: Xujie
authors: X
authors: Lü
authors: High Pressure Science and Engineering Center (HiPSEC), University of Nevada Las Vegas, Las Vegas, NV, 89154, USA.|High Pressure Synergetic Consortium (HPSynC), Carnegie Institution of Washington, Argonne, IL, 60439, USA.
authors: Yonggang
authors: Y
authors: Wang
authors: Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA.
authors: Constantinos C
authors: CC
authors: Stoumpos
authors: Geophysical Laboratory, Carnegie Institution of Washington, Washington, DC, 20015, USA.|Center for High Pressure Science and Technology Advanced Research (HPSTAR), Shanghai, 201203, China.
authors: Qingyang
authors: Q
authors: Hu
authors: Earth and Environmental Sciences Division, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA.
authors: Xiaofeng
authors: X
authors: Guo
authors: Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA.
authors: Haijie
authors: H
authors: Chen
authors: High Pressure Synergetic Consortium (HPSynC), Carnegie Institution of Washington, Argonne, IL, 60439, USA.
authors: Liuxiang
authors: L
authors: Yang
authors: High Pressure Collaborative Access Team (HPCAT), Carnegie Institution of Washington, Argonne, IL, 60439, USA.
authors: Jesse S
authors: JS
authors: Smith
authors: High Pressure Synergetic Consortium (HPSynC), Carnegie Institution of Washington, Argonne, IL, 60439, USA.|Center for High Pressure Science and Technology Advanced Research (HPSTAR), Shanghai, 201203, China.
authors: Wenge
authors: W
authors: Yang
authors: High Pressure Science and Engineering Center (HiPSEC), University of Nevada Las Vegas, Las Vegas, NV, 89154, USA. zhaoys@sustc.edu.cn.|Department of Physics, Southern University of Science and Technology, Shenzhen, 518055, China. zhaoys@sustc.edu.cn.
authors: Yusheng
authors: Y
authors: Zhao
authors: Earth and Environmental Sciences Division, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA. hxu@lanl.gov.
authors: Hongwu
authors: H
authors: Xu
authors: Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA. m-kanatzidis@northwestern.edu.
authors: Mercouri G
authors: MG
authors: Kanatzidis
authors: Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA. qxjia@lanl.gov.
authors: Quanxi
authors: Q
authors: Jia
keywords: conductivity; enhanced photo responsiveness; high-pressure induced amorphization, recrystallization; organic-inorganic halide perovskites; stability