Ultrasensitive and Broad‐Spectrum Photodetectors Based on InSe/ReS2 Heterostructure
Advanced Optical Materials(2021)
摘要
Photogating effect based on vertical structure of 2D materials allows for the realization of a highly sensitive photodetector. A highly sensitive and broad‐spectrum (365–965 nm) photodetector is reported based on the indium selenide (InSe)/rhenium disulfide (ReS2) vertical heterostructure, where the top layer InSe serves as the photogate to regulate the channel current, enabling a large photoconductive gain of 106. The detectivity of the photodetector can reach 6.51 × 1013 Jones, making this one of the highest values among reported transition metal dichalcogenide photodetectors. The photodetector represents a high responsivity of 1921 A W−1, an ultrahigh external quantum efficiency (EQE) of 6.53 × 105%, and a fast response time of 21.6 ms. The outstanding properties of the InSe/ReS2 heterojunction reveal the promising potential in high‐efficient, ultrasensitive, broadband photodetectors.
更多查看译文
关键词
broad-spectrum detection, indium selenide, photogating, rhenium disulfide, van-der-Waals heterojunction
AI 理解论文
溯源树
样例
![](https://originalfileserver.aminer.cn/sys/aminer/pubs/mrt_preview.jpeg)
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要