[19a-P5-1~38] 12.5 Organic solar cells

[19a-P5-20] Role of IPA in the formation of FAPbI_xBr_3-x perovskite thin films

〇Hajime Shirai¹, Takanori Yamanaka¹, Shuji Funada¹, Kazuma Uchiumi¹, Kohei Usuba¹, Ryo Ishiakwa¹ (1.Saitama Univ.)

Keywords:Perovskite,Thin-film solar cells,Spectroscopic ellipsometry

Role of IPA in the formation of FAPbI_xBr_3-x perovskite thin films was studied from a solution of FAIBr and PbIBr using spectroscopic ellipsometry, FTIR, XRD, and transmittance/reflectance characterizations. IPA promote the formation of perovskite phase owing to the enhanced crystallization of PbIBr.