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

△ [11p-Z11-2] Carrier-Resolved Photo-Hall Measurement in CH₃NH₃PbBr₃ Single Crystal

〇(M1)Takumi Kimura¹, Kenichi Oto¹, Yoshihiko Kanemitsu², Yasuhiro Yamada¹ (1.Chiba Univ., 2.Kyoto Univ.)

Keywords:perovskite, CH3NH3PbBr3, mobility

We have performed the Carrier-Resolved Photo-Hall Measurement of lead halide perovskite CH₃NH₃PbBr₃ single crystal. To evaluate the hole and electron mobility, a four-terminal resistance measurement and lock-in detection of Hall voltage under an ac-magnetic field were performed at room temperature under LED light at 520 nm wavelength. The observed mobility increases with the irradiation light intensity, probably due to the screening of the defect potential and the carrier traps by the photo-induced carriers. The maximum mobility obtained was µ_p = 159 cm²/Vs and µ_n = 138 cm²/Vs.