Tunable 2H–TaSe<sub>2</sub> room-temperature terahertz photodetector

Tunable 2H–TaSe₂ room-temperature terahertz photodetector

Wang Jin^{1, 2}, Guo Cheng^{2, 3}, Guo Wanlong^{2, 3}, Wang Lin^{2, 3, †}, Shi Wangzhou^{1, ‡}, Chen Xiaoshuang^{2, 3, §}

(a) Detection of terahertz radiation using a home-built experimental setup. (b) I–V curve of the device. (c) The photoresponse versus incident power P_in under 40-GHz electromagnetic radiation. (d) The relationship between photoresponse and modulation frequency under 0.12-THz terahertz radiation at zero bias.