Electrical transport and optical properties of Cd<sub>3</sub>As<sub>2</sub> thin films

Electrical transport and optical properties of Cd₃As₂ thin films

Yang Yun-Kun^{1, 2}, Xiu Fa-Xian^{1, 2}, Wang Feng-Qiu^{1, 3}, Wang Jun^{4, 5}, Shi Yi^{1, 3, 6, †}

(a) I–V curves of the Cd₃As₂ thin film/pentacene heterojunction photodetector with and without illumination at the wavelength of 650 nm. (b) and (c) Photocurrent curves of Cd₃As₂/pentacene heterojunction measured under different wavelengths without and with bias voltage, respectively. (d) Photocurrent curves with bias voltage at wavelengths of 450, 520, 650, 780, 980, 1310, and 1550 nm. (e) Comparison between responsivity (R_i) of Cd₃As₂ thin films/pentacene heterojunction photodetector and Cd₃As₂ thin film photodetector. (f) Wavelength-dependent EQE of Cd₃As₂/pentacene heterojunction photodetectors. This figure is adapted from Ref. [39], ACS Publications Group.