1results about How to "Self-driving" patented technology

The present invention aims to provide a self-driven broadband photodetector and its fabrication method, belonging to the field of photodetector technology. In this detector, one side of a narrow-bandgap two-dimensional semiconductor is in contact with a metal, and the other side is in contact with a two-dimensional semi-metal, thereby constructing good asymmetric Schottky and Ohmic contacts on both sides of the narrow-bandgap two-dimensional semiconductor. This structure achieves a wide detection spectral range from visible light to infrared light and high photodetector performance without the need for external power supply, and the device exhibits a low dark current at zero bias, reaching 10-1. ‑13 A, which also has high responsiveness.