Photosensitive Dielectric 2D Perovskite Based Photodetector for Dual Wavelength Demultiplexing
B.-S. Qiao, S.-Y. Wang, Z.-H. Zhang, Z.-D. Lian, Z.-Y. Zheng, Z.-P. Wei, L. Li, K. W. Ng, S.-P. Wang and Z.-B. Liu
刊名Advanced Materials
2023
卷号35期号:21
ISSN号09359648
DOI10.1002/adma.202300632
英文摘要Stacked 2D perovskites provide more possibilities for next generation photodetector with more new features. Compared with its excellent optoelectronic properties, the good dielectric performance of metal halide perovskite rarely comes into notice. Here, a bifunctional perovskite based photovoltaic detector capable of two wavelength demultiplexing is demonstrated. In the Black Phosphorus/Perovskite/MoS2 structured photodetector, the comprehensive utilization of the photosensitive and dielectric properties of 2D perovskite allows the device to work in different modes. The device shows normal continuous photoresponse under 405 nm, while it shows a transient spike response to visible light with longer wavelengths. The linear dynamic range, rise/decay time, and self-powered responsivity under 405 nm can reach 100, 38 µs/50 µs, and 17.7 mA W-1, respectively. It is demonstrated that the transient spike photocurrent with long wavelength exposure is related to the illumination intensity and can coexist with normal photoresponse. Two waveband-dependent signals can be identified and used to reflect more information simultaneously. This work provides a new strategy for multispectral detection and demultiplexing, which can be used to improve data transfer rates and encrypted communications. This work mode can inspire more multispectral photodetectors with different stacked 2D materials, especially to the optoelectronic application of the wide bandgap, high dielectric photosensitive materials. © 2023 Wiley-VCH GmbH.
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内容类型期刊论文
源URL[http://ir.ciomp.ac.cn/handle/181722/67797]  
专题中国科学院长春光学精密机械与物理研究所
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B.-S. Qiao, S.-Y. Wang, Z.-H. Zhang, Z.-D. Lian, Z.-Y. Zheng, Z.-P. Wei, L. Li, K. W. Ng, S.-P. Wang and Z.-B. Liu. Photosensitive Dielectric 2D Perovskite Based Photodetector for Dual Wavelength Demultiplexing[J]. Advanced Materials,2023,35(21).
APA B.-S. Qiao, S.-Y. Wang, Z.-H. Zhang, Z.-D. Lian, Z.-Y. Zheng, Z.-P. Wei, L. Li, K. W. Ng, S.-P. Wang and Z.-B. Liu.(2023).Photosensitive Dielectric 2D Perovskite Based Photodetector for Dual Wavelength Demultiplexing.Advanced Materials,35(21).
MLA B.-S. Qiao, S.-Y. Wang, Z.-H. Zhang, Z.-D. Lian, Z.-Y. Zheng, Z.-P. Wei, L. Li, K. W. Ng, S.-P. Wang and Z.-B. Liu."Photosensitive Dielectric 2D Perovskite Based Photodetector for Dual Wavelength Demultiplexing".Advanced Materials 35.21(2023).
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