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Title: Giant photostriction in organic–inorganic lead halide perovskites
Authors: You, Lu
Zhou, Yang
Wang, Shiwei
Ku, Zhiliang
Fan, Hongjin
Schmidt, Daniel
Rusydi, Andrivo
Chang, Lei
Wang, Le
Ren, Peng
Chen, Liufang
Yuan, Guoliang
Chen, Lang
Wang, Junling
Keywords: Materials For Optics
Issue Date: 2016
Source: Zhou, Y., You, L., Wang, S., Ku, Z., Fan, H., Schmidt, D., . . . Wang, J. (2016). Giant photostriction in organic–inorganic lead halide perovskites. Nature Communications, 7, 11193-. doi:10.1038/ncomms11193
Series/Report no.: Nature Communications
Abstract: Among the many materials investigated for next-generation photovoltaic cells, organic–inorganic lead halide perovskites have demonstrated great potential thanks to their high power conversion efficiency and solution processability. Within a short period of about 5 years, the efficiency of solar cells based on these materials has increased dramatically from 3.8 to over 20%. Despite the tremendous progress in device performance, much less is known about the underlying photophysics involving charge–orbital–lattice interactions and the role of the organic molecules in this hybrid material remains poorly understood. Here, we report a giant photostrictive response, that is, light-induced lattice change, of >1,200 p.p.m. in methylammonium lead iodide, which could be the key to understand its superior optical properties. The strong photon-lattice coupling also opens up the possibility of employing these materials in wireless opto-mechanical devices.
DOI: 10.1038/ncomms11193
Rights: © 2016 The Author(s) (Published by Nature Publishing Group). This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:MSE Journal Articles

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