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19 November 2019 All-inorganic halide perovskites thin-film self-powered photodetector
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Abstract
CsPbIxBr1-x thin film with spontaneous polarization can be made into the self-powered photodetector based on light induced pyroelectric effect. It can perform without an external power source to meet the demands of the portable and wearable nanodevices. Here, a novel self-powered photodetector based on all-inorganic halide perovskites CsPbIxBr1-x thin film is fabricated, which shows an ultrafast response speed of less than 6μs under the laser illumination at zero bias. Also, the response characteristics of the self-powered photodetector from UV to near infrared are experimented and exhibited. Especially, the device has a higher response to 405nm UV light than other. This work extends the potential applications of perovskites in energy scavenging and self-powered sensor systems.
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L. F. Jin, Y. T. Zhang, Y. Yu, Y. F. Li, Z. L. Chen, and J. Q. Yao "All-inorganic halide perovskites thin-film self-powered photodetector", Proc. SPIE 11193, Nanophotonics and Micro/Nano Optics V, 1119311 (19 November 2019); https://doi.org/10.1117/12.2537337
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