Growth and interfacial structure of methylammonium lead iodide thin films on Au(111)

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• 作者：Limin She ; Meizhuang Liu ; Xiaoli Li ; Zeying Cai ; Dingyong Zhong ; ^{dyzhong@mail.sysu.edu.cn}
• 刊名：Surface Science
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：656
• 期：Complete
• 页码：17-23
• 全文大小：1613 K
• 卷排序：656

文摘

This is the first work unveiling the growth and the interfacial structures of hybrid perovskites at the atomic scale. At the initial stage, a complicated transient phase consisting of iodine, MA-PbI4 and MA-I layer was firstly formed on the Au(111) substrate. With the coverage increasing, the high-quality CH3NH3PbI3 films were grown by the stacking of PbI2-MAI twofold layers. Annealing at a proper annealing temperature (373 K) can improve the domain size and efficiently reduce the defect density.