TY - JOUR
T1 - Giant photostriction in organic-inorganic lead halide perovskites
AU - Zhou, Yang
AU - You, Lu
AU - Wang, Shiwei
AU - Ku, Zhiliang
AU - Fan, Hongjin
AU - Schmidt, Daniel
AU - Rusydi, Andrivo
AU - Chang, Lei
AU - Wang, Le
AU - Ren, Peng
AU - Chen, Liufang
AU - Yuan, Guoliang
AU - Chen, Lang
AU - Wang, Junling
PY - 2016/4/5
Y1 - 2016/4/5
N2 - 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.
AB - 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.
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U2 - 10.1038/ncomms11193
DO - 10.1038/ncomms11193
M3 - Article
AN - SCOPUS:84962756969
SN - 2041-1723
VL - 7
JO - Nature Communications
JF - Nature Communications
M1 - 11193
ER -
