When sensor networks for the Internet of Things (IoT) are applied on a large scale, it’s urgent to investigate self-powered photoelectric detection system without external power supply. Therefore, we propose a self-powered photo-detection system based on the triboelectric nanogenerator (TENG)in which the silicon PIN photodetector is powered by a paper-based contact separated TENG. The silicon PIN photodetectors are based on mature silicon processing technology, which is suitable for large scale production. The TENG is connected to the detector through the rectifier bridge circuit. Owing to the internal photoelectric effect of the detector and the TENG impedance matching effect, the equivalent resistance of the detector decreases when light is applied to the surface of the photodetector and the output voltage of the TENG changes accordingly. We investigate the output characteristics of the photoelectric detection system under different illumination intensities and propose a circuit model to analyze the influence of the current on the detection range. Finally, we use light-emitting diodes (LEDs) as display devices to characterize the detected light intensity for applicable self-powered photo-detection system.

当大规模应用物联网（IoT）的传感器网络时，迫切需要研究无需外部电源的自供电光电检测系统。因此，我们提出了一种基于摩擦电纳米发电机（TENG）的自供电光电检测系统，其中硅PIN光电探测器由基于纸的接触式TENG供电。硅PIN光电探测器基于成熟的硅加工技术，适合大规模生产。TENG通过整流桥电路连接到检测器。由于检测器的内部光电效应和TENG阻抗匹配效应，当将光施加到光电检测器的表面时，检测器的等效电阻减小，并且TENG的输出电压相应地变化。我们研究了在不同照度下光电检测系统的输出特性，并提出了一种电路模型来分析电流对检测范围的影响。最后，我们将发光二极管（LED）用作显示设备，以表征适用于自供电光检测系统的检测光强度。