A vertical structure photodetector based on all-inorganic perovskite quantum dots
A vertical structure photodetector based on all-inorganic perovskite quantum dots
复制标题
基于全无机钙钛矿量子点的垂直结构光电探测器
DOI：
10.1002/jsid.853
复制
发表时间：
2019-12-03
影响因子：
2.3
通讯作者：
Chen, Jing
中科院分区：
文献类型：
--
作者：
Yan, Shikai;Li, Qing;Chen, Jing
本文报道了一种基于氧化铟锡（ITO）/氧化锌（ZnO）/CsPbBr 3量子点/Au的垂直结构光电探测器。在该器件中，CsPbBr 3量子点薄膜作为光捕获层，ZnO量子点薄膜作为电子传输通道，可以有效地提取电子，提高CsPbBr 3量子点薄膜的质量。结果表明，CsPbBr_3/ZnO混合光电探测器在0-V偏压下的开/关比、探测率和上升时间分别为2.4 × 10 ~（6）、2.25 × 10 ~（11）和62毫秒（82 ms）。这一工作对基于全无机钙钛矿量子点的垂直结构光电探测器的发展具有启发意义。
In this work, the vertical structure photodetector based on CsPbBr3 quantum dots (QDs) with a structure of indium tin oxide (ITO)/zinc oxide (ZnO)/CsPbBr3 QDs/Au is reported. In this device, CsPbBr3 QDs film works as the light-harvesting layer, and ZnO QDs film acts as the electron transport channel, which can extract the electron efficiently and improve the quality of CsPbBr3 QDs film. As a result, the on/off ratio, detectivity and rise time (decay time) of CsPbBr3/ZnO hybrid photodetector are measured to be 2.4 x 10(6), 2.25 x 10(11), and 62 milliseconds (82 ms) under 0-V bias. This work inspires the development of vertical structure photodetectors based on the all-inorganic perovskite QDs.