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Controlled crystallization to grow large grain organometal halide perovskite thin film

机译:控制结晶以生长大晶粒有机金属卤化物钙钛矿薄膜

摘要

A method of forming perovskite thin films with micron-sized perovskite grains is provided. A layer of PbX2 in a solution containing a metal ion additive is applied to a structure. The structure with the PbX2 layer is annealed a first time. The PbX2 is exposed to CH3NH3X in a solvent. The structure with the exposed PbX2 layer is annealed a second time resulting in a CH3NH3PbX3 layer. X is selected from a group consisting of Cl, Br, I, CN, and SCN.
机译:提供了一种形成具有微米级钙钛矿晶粒的钙钛矿薄膜的方法。将包含金属离子添加剂的溶液中的PbX 2 层应用于结构。第一次对具有PbX 2 层的结构进行退火。将PbX 2 在溶剂中暴露于CH 3 NH 3 X。将具有暴露的PbX 2 层的结构第二次退火,得到CH 3 NH 3 PbX 3 层。 X选自Cl,Br,I,CN和SCN。

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