光电探测器
材料科学
光电子学
纳米结构
钙钛矿(结构)
光电效应
表面等离子共振
图层(电子)
等离子体子
能量转换效率
吸收(声学)
共振(粒子物理)
聚苯乙烯
纳米技术
纳米颗粒
化学
复合材料
结晶学
物理
粒子物理学
聚合物
作者
Jianwei Jiang,X L Ye,Chi Ma,Huan Lou
摘要
Photodetectors with ultrathin thickness and high efficiency are increasingly needed in the developing of wearable devices. However, the very limited active layer thickness has seriously restricted the photoelectric conversion efficiency. Here, the optical nanostructure fabricated with the assistance of self-assembly polystyrene mask layer has been integrated to increase the light absorption capacity by simultaneously utilizing the local surface plasma resonance, gap plasma, and the microcavity resonance effect. With the incorporation of triangular silver (T-Ag) nanostructure, the photogenerated current and response speed have significantly enhanced 481.25% and 26.30%, respectively. This strategy provides a viable way to design high-efficiency ultra-thin photodetectors.
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