[15p-303-1~16] 12.5 Organic solar cells

[15p-303-14] Growth of the halide perovskite and a control of crystal orientation in the combinatorial IR laser MBE

〇Kazuhiro Kawashima¹, Yuji Okamoto², Nobuo Toyokura¹, Kenji Itaka³, Nobuyuki Matsuki⁴, Hideomi Koinuma¹ (1.COMET Inc., 2.Univ. Tsukuba, 3.Hirosaki Univ., 4.Kanagawa Univ.)

Keywords:Combinatorial thin film technology, IR laser MBE, Perovskite solar cell

CH₃NH₃PbI₃ thin films were grown by the combinatorial IR laser MBE system on two different substrates: A TiO₂-coated ITO glass substrate, which is generally used for solar cell devices, and a silicon (001) substrate which can be important in respect of the tandem solar cell. We will demonstrate that a selection of the substrate is an important factor to control an orientation of the perovskite film. A growth of the perovskite crystal in the MBE process is also discussed.