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Organic Dye-Sensitized CH3NH3PbI3 Hybrid Flexible Photodetector with Bulk Heterojunction Architectures
Chang-Jiu Teng1, Dan Xie1, Meng-Xing Sun1
1Institute of Microelectronics, Tsinghua National Laboratory for Information Science and Technology (TNList), Tsinghua University , Beijing 100084, People's Republic of China.
Abstract:
A flexible photodetector based on the bulk heterojunction of an organometallic halide perovskites CH3NH3PbI3 and an organic dye Rhodamine B (RhB) has been fabricated via a solution casting process. It showed a high responsivity (Rmax = 43.6 mA/W) to visible lights, short response time (tr ≈ 60 ms, td ≈ 40 ms), high on-off ratio (Ion/Ioff ≈ 287) and satisfactory stability because of its Schottky barrier structure and the dye enhanced light absorption.

