Enhanced Structural Stability and Photo Responsiveness of CH3NH3SnI3 Perovskite via Pressure‐Induced Amorphization and Recrystallization. Issue 39 (12th August 2016)

• Record Type: Journal Article
• Authors: Lü, Xujie; Wang, Yonggang; Stoumpos, Constantinos C.; Hu, Qingyang; Guo, Xiaofeng; Chen, Haijie; Yang, Liuxiang; Smith, Jesse S.; Yang, Wenge; Zhao, Yusheng; Xu, Hongwu; Kanatzidis, Mercouri G.; Jia, Quanxi
• Is Part Of: Advanced materials. Volume 28:Issue 39(2016)
• Page Start: 8663
• Page End: 8668
• Publication Date: 2016-08-12
• Subjects: enhanced photo responsiveness -- high‐pressure induced amorphization, recrystallization -- stability -- conductivity -- organic–inorganic halide perovskites; Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adma.201600771
• Languages: English
• ISSNs: 0935-9648

Abstract

Abstract : An organic–inorganic halide CH3 NH3 SnI3 perovskite 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.