[22p-W531-1~7] 12.5 Organic solar cells

[22p-W531-5] Real-time analysis of the crystallization process of organolead-halide perovskite by grazing incident X-ray diffraction

〇Tetsuhiko Miyadera¹, Yosei Shibata², Tomoyuki Koganezawa³, Takurou N. Murakami¹, Takeshi Sugita¹, Nobutaka Tanigaki⁴, Masayuki Chikamatsu¹ (1.AIST RCPV, 2.Tohoku Univ., 3.JASRI, 4.AIST IFMRI)

Keywords:Organic solar cells,Perovskite solar cells,crystallization

The analysis of crystallization process is important issue for the organolead halide perovskite solar cells, which have been developing rapidly. The real time analysis by grazing incident X-ray diffraction at synchrotron radiation facility (SPring-8) was conducted for the crystallization process of the perovskite, which was fabricated by mixing the source materials of PbI₂ thin film and CH₃NH₃I solution. We found that the crystallization is proceeding based on the anomalous diffusion process. The reaction kinetics is strongly dependent on the morphology of PbI₂.