Thin film patterning of hybrid perovskite by vapor phase deposition and conversion on polymer alligned substrate

초록

Methyl ammonium lead iodide perovskites (MAPbI3) has been attracting researchers because of its high-performance in photo-voltaic (PV) application, such as Solar cell, Light Emitting Diode (LED) and photo detector. Most applications are using organic solution based recrystallized MAPbI3 thin film. But, during synthesis, it is hard to achieve patterning in general method. Here, we first report patterning polycrystalline thin MAPbI3 by vapor phase deposition and conversion at a relatively low temperature which aligned polymer can endure during process. MAPbI3 thin film patterning will solve the structural limitations of applications, but also enables the production of uniform, high-purity wafer-scale perovskite thin films through vapor phase synthesis at low temperature.