title: A facile solvothermal growth of single crystal mixed halide perovskite CH3NH3Pb(Br(1-x)Cl(x))3.
abstract: We demonstrate a facile synthetic approach for preparing mixed halide perovskite (CH3NH3)Pb(Br1-xClx)3 single crystals by the solvothermal growth of stoichiometric PbBr2 and [(1 - y)CH3NH3Br + yCH3NH3Cl] DMF precursor solutions. The band gap of (CH3NH3)Pb(Br1-xClx)3 single crystals increased and the unit cell dimensions decreased with an increase in Cl content x, consistent with previous theoretical predictions. Interestingly, the Cl/Br ratio in the (CH3NH3)Pb(Br1-xClx)3 single crystals is larger than that of the precursor solution, suggesting an unusual crystal growth mechanism.
authors: School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Rd., Shanghai 200240, China. yixin.zhao@sjtu.edu.cn.
authors: Taiyang
authors: T
authors: Zhang
authors: Mengjin
authors: M
authors: Yang
authors: Eric E
authors: EE
authors: Benson
authors: Zijian
authors: Z
authors: Li
authors: Jao
authors: J
authors: van de Lagemaat
authors: Joseph M
authors: JM
authors: Luther
authors: Yanfa
authors: Y
authors: Yan
authors: Kai
authors: K
authors: Zhu
authors: Yixin
authors: Y
authors: Zhao