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Controlled Homoepitaxial Growth of Hybrid Perovskites
Author(s) -
Lei Yusheng,
Chen Yimu,
Gu Yue,
Wang Chunfeng,
Huang Zhenlong,
Qian Haoliang,
Nie Jiuyuan,
Hollett Geoff,
Choi Woojin,
Yu Yugang,
Kim NamHeon,
Wang Chonghe,
Zhang Tianjiao,
Hu Hongjie,
Zhang Yunxi,
Li Xiaoshi,
Li Yang,
Shi Wanjun,
Liu Zhaowei,
Sailor Michael J.,
Dong Lin,
Lo YuHwa,
Luo Jian,
Xu Sheng
Publication year - 2018
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201705992
Subject(s) - materials science , crystallite , epitaxy , optoelectronics , crystal growth , microfabrication , layer (electronics) , diode , nanotechnology , single crystal , crystallography , fabrication , medicine , chemistry , alternative medicine , pathology , metallurgy
Organic–inorganic hybrid perovskites have demonstrated tremendous potential for the next‐generation electronic and optoelectronic devices due to their remarkable carrier dynamics. Current studies are focusing on polycrystals, since controlled growth of device compatible single crystals is extremely challenging. Here, the first chemical epitaxial growth of single crystal CH 3 NH 3 PbBr 3 with controlled locations, morphologies, and orientations, using combined strategies of advanced microfabrication, homoepitaxy, and low temperature solution method is reported. The growth is found to follow a layer‐by‐layer model. A light emitting diode array, with each CH 3 NH 3 PbBr 3 crystal as a single pixel, with enhanced quantum efficiencies than its polycrystalline counterparts is demonstrated.