真空蒸着による有機金属ハライドペロブスカイトの結晶成長制御と評価

抄録

  Vacuum deposition is expected to be a promising method for fabricating organometal halide perovskite, that has been attracting a lot of attention as next generation solar cells. The vaporization feature of CH₃NH₃I is a critical issue, which disturbs the deposition rate control for vacuum deposition. We have developed a laser deposition process to overcome the vaporization issue and the precise deposition-rate control was demonstrated. We also succeeded in the epitaxial growth of CH₃NH₃PbI₃. In addition, precise crystallization mechanisms were analyzed using synchrotron radiation facility (SPring-8). In this paper, overview for the vacuum-deposition based perovskite fabrication was presented with our recent research results.