MAPbI3-based Efficient, Transparent and Air-Stable Broadband Photodetectors
Indian Journal of Physics/Indian journal of physics/Indian Journal of Physics and Proceedings of the Indian Association for the Cultivation of Science(2021)
摘要
Numerous structures have been reported in search of affordable self-powered broadband photodetectors, however with limited success. The hybrid perovskite heterostructures have been attracted great attention due to their advance optical and electrical properties. The stability and facile synthesis are critical issues in achieving the potential success of realizing perovskite-based photodetectors. Herein, we report a facile one-step spray-coated method to synthesize MAPbI3 perovskite polycrystalline thin-film on the glass as photodetector followed by their morphological (Atomic force microscopy), structural (X-ray diffraction/Fourier transform infrared spectroscopy, optical (UV–Vis), and electrical characterization. The device shows a very good response for visible and NIR region with the responsivity, detectivity, and external quantum efficiency of 1.682 mA/W, 1.5065 × 1012 Jones, and 0.3799, respectively. Further, the device exhibits photoresponse under visible to IR (400–900 nm) light illuminations, which holds great futuristic promises for affordable, broadband, stable, and efficient energy-conserving electronics.
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关键词
MAPbI3,Broadband PDs,Responsivity,Detectivity,Photoresponse
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