Fullerene-based electrode interlayers for bandgap tunable organometal perovskite metal–semiconductor

Fullerene-based electrode interlayers for bandgap tunable organometal perovskite metal–semiconductor–metal photodetectors

Luo Wen, Yan Li-Zhi, Liu Rong, Zou Tao-Yu, Zhou Hang^†

(a) Comparison of photoluminescence spectra of MAPbBr₃, MAPbBr₃/ICBA, and MAPbBr₃/PCBM. (b) Comparison of photoluminescence spectra of MAPbI₃, MAPbI₃/ICBA, and MAPbI₃/PCBM. (c) Electrochemical impedance spectroscopy of MAPbBr₃/fullerenes photodetector; the illustration shows the equivalent circuits of perovskite/fullerenes photodetector. (d) Electrochemical impedance spectroscopy of MAPbI₃/fullerenes photodetector under a dark condition.