响应度
光电探测器
材料科学
石墨烯
紫外线
光电子学
光学
纳米线
异质结
纳米技术
物理
作者
Min Zhou,Yukun Zhao,Qianyi Zhang,Xiushuo Gu,Jianya Zhang,Min Jiang,Shulong Lu
出处
期刊:Optics Letters
[The Optical Society]
日期:2023-12-05
卷期号:49 (2): 338-338
被引量:3
摘要
Due to the low-power consumption, self-driven ultraviolet (UV) photodetectors have great potentials in a broad range of applications, such as optical communication, ozone monitoring, bio-medicine, and flame detection. In this Letter, it is pretty novel to enhance the photocurrent and responsivity of self-driven UV photodetectors by (Al,Ga)N nanowire/graphene/polyvinylidene fluoride (PVDF) heterojunction successfully. Compared to those of the photodetector with only nanowire/graphene heterojunction, it is found that both the photocurrent and responsivity of the photodetector with nanowire/graphene/PVDF heterojunction can be enhanced more than 100%. It is proposed that PVDF could maintain the internal gain by increasing the number of carrier cycles. Furthermore, this photodetector can also have a high detectivity of 5.3×10
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