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5 March 2022 High responsivity and fast response Pt:p-AlGaN nanowire-based self-power solar-blind photodetector
Danhao Wang, Shi Fang, Yang Kang, Xin Liu, Yuanmin Luo, Haiding Sun
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Proceedings Volume PC12001, Gallium Nitride Materials and Devices XVII; PC120010Q (2022) https://doi.org/10.1117/12.2609587
Event: SPIE OPTO, 2022, San Francisco, California, United States
Abstract
Nowadays, power-independent, compact, and highly environment-sensitive self-powered photoelectrochemical-type photodetectors (PEC−PDs) have lately intrigued intensive interest to realize next-generation optoelectronic systems. Herein, we demonstrate p-AlGaN nanowire-based self-powered solar-blind PEC-PDs. After decorating nanowires with noble metal platinum (Pt), the constructed solar-blind PEC−PDs exhibited excellent responsivity of 45 mA/W, fast response/recovery time of 47/20 ms. Such high solar-blind photodetection originates from the unparalleled material quality, fast interfacial kinetics, as well as high carrier separation efficiency which suggests that using AlGaN nanowires with appropriate surface decoration offers an unprecedented opportunity for designing future energy-efficient and large-scale optoelectronic systems on a silicon platform.
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Danhao Wang, Shi Fang, Yang Kang, Xin Liu, Yuanmin Luo, and Haiding Sun "High responsivity and fast response Pt:p-AlGaN nanowire-based self-power solar-blind photodetector", Proc. SPIE PC12001, Gallium Nitride Materials and Devices XVII, PC120010Q (5 March 2022); https://doi.org/10.1117/12.2609587
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KEYWORDS
Photodetectors
Nanowires
Optoelectronics
Platinum
Sun
Ultraviolet radiation
Silicon
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