Paper SS+AS-WeM5
Effect of Surface Passivation on Stability of Methylammonium Lead Iodide Perovskite

Wednesday, November 9, 2016, 9:20 am, Room 104E

Methylammonium Lead Iodide Perovskite (MAPbI₃) is a promising photoelectronic material for various applications. However, the stability of MAPbI₃ is a big concern for its applications in outdoor application environments. Its stability is affected the interfaces between MAPbI₃ and other layers of materials, temperature, moisture, and O₂. Currently the detail decomposition mechanism is not clear yet. In this presentation, we will employ a suite of in-situ characterization methods including in-situ Fourier Transform Infrared spectrometer, quartz crystal microbalance, and quadrupole mass spectrometer to understand the decomposition mechanism when expense MAPbI₃ to different simulated application environments (such as Fig. 1). The effect of various surface passivation methods on the stability of MAPbI₃ will be presented to help illustrate the mechanism that govern the stability of MAPbI₃.