Photodetection Performances of MAPbI3 Perovskites
2023 23rd International Conference on Transparent Optical Networks (ICTON)(2023)
摘要
The extraordinarysuccess of metal halide perovskites (MHPs) developed during the last years has made this family of semiconductors to be a potential candidate to implement a new generation of optoelectronic devices. Nevertheless, the practical application of these semiconductors still requires a deeper determination of the extent of their outstanding properties together with the right integration with electronic circuitry that takes advantage of them. In this manuscript, we propose a full photodetection system based on the integration of MAPbI
3
(MA: methylammonium) MHPs polycrystalline thin films with interdigital electrodes and the efficient extraction of the generated photocurrent with a transimpedance amplifier. Under this configuration, the photoconductive properties of the devices are thoroughly determined, including the sensitivity, the on-off ratio, and the frequency response. As a result, the proposed device demonstrates a sensitivity below 1 µW at 450 nm, discriminates photocurrents smaller than 1 nA, and operates at frequencies higher than 10 kHz. The presented results are an important step toward the use of MHP as a photodetector in telecommunications or sensing.
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关键词
MAPbI3,photodetector,frequency response,transimpedance amplifier
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