[11p-Z11-1~14] 12.5 Organic solar cells

△ [11p-Z11-7] Crystal Orientation and Solar Cell Properties of Bar-coated CH₃NH₃PbI₃ Thin Film

〇Tomohisa Oizumi¹, Masashi Murata¹, Meigen Gi¹, Ryotaro Tsuji², Makoto Arita³, Akihiko Fujii¹, Masanori Ozaki¹ (1.Osaka Univ, 2.KANEKA, 3.Kyushu Univ)

Keywords:perovskite, solution processes, orientation

Fabrication of CH₃NH₃PbI₃ (MAPbI₃) thin films in perovskite solar cells were carried out by using a bar-coating technique, which is suitable for large-scale production. Although a previous study reported that (110) of the tetragonal crystal are oriented out of the substrate, (100) of MAPbI3 fabricated by the bar-coated method was found to be uniformly oriented out of plane direction of the substrate. Utilizing the thin films as an active layer of solar cell, favorable solar cell properties were demonstrated.