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arXiv · 1612.01649

Enhanced Structural Stability and Photo Responsiveness of CH3NH3SnI3 Perovskite via Pressure-Induced Amorphization and Recrystallization

Xujie Lü·Yonggang Wang·Constantinos C. Stoumpos·Qingyang Hu·Xiaofeng Guo·Haijie Chen·Liuxiang Yang·Jesse S. Smith·Wenge Yang·Yusheng Zhao·Hongwu Xu·Mercouri G. Kanatzidis·Quanxi Jia
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Abstract

An organic-inorganic halide perovskite of CH3NH3SnI3 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 demonstrated to be associated with the improved structural stability.

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Xujie Lü, Yonggang Wang, Constantinos C. Stoumpos, Qingyang Hu, Xiaofeng Guo, Haijie Chen, Liuxiang Yang, Jesse S. Smith, Wenge Yang, Yusheng Zhao, Hongwu Xu, Mercouri G. Kanatzidis, Quanxi Jia. 2016-12-06. Enhanced Structural Stability and Photo Responsiveness of CH3NH3SnI3 Perovskite via Pressure-Induced Amorphization and Recrystallization. https://doi.org/10.1002/adma.201600771

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