Ji Zhong, Liu Yujin, Mai Wenjie
Opt Lett. 2021 Jan 1;46(1):150-153. doi: 10.1364/OL.408510.
The color imaging capacity of recently developed perovskite photodetectors (PDs) has not been fully explored. In this Letter, we fabricate a () PD as a color imaging sensor mainly due to its almost flat spectral response in a full visible light region. To enhance the photodetection performance, we introduce a dual functional interfacial layer by atomic layer deposition, reducing the dark current to 12 pA from 13 nA and improving the photocurrent to 1.87 µA from 20 nA, resulting in a ∼10 fold enhancement of the ON/OFF ratio. Since we obtained satisfactory color images, we believe that the perovskite PD is an ideal photosensitive device for color imaging.
最近开发的钙钛矿光电探测器（PDs）的彩色成像能力尚未得到充分探索。在本信函中，我们制造了一种（）PD作为彩色成像传感器，主要是因为其在整个可见光区域具有几乎平坦的光谱响应。为了提高光电探测性能，我们通过原子层沉积引入了双功能界面层，将暗电流从13 nA降低到12 pA，并将光电流从20 nA提高到1.87 µA，导致开/关比提高了约10倍。由于我们获得了令人满意的彩色图像，我们相信钙钛矿PD是用于彩色成像的理想光敏器件。
