WSe₂ and rGO Heterojunction-Based UV-Visible Photodetector

This research focuses on the affordable Al/rGO/WSe<sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub>/PEDOT: PSS/ITO/PET structured photodetector performance. The study examines the optical and electrical characteristics of the proposed photodetector. The device's performance is noted to be excellent at detecting light in the UV (ultraviolet) to Visible spectrum. The occurrence of photomultiplication in the carrier transport mechanism, results in high external quantum efficiency (EQE). For 350 nm (UV) and 400 nm (Vis), the EQEs and Responsivity (RS) measured with a 0.85V bias are 3.22×105% and 909A/W, 2.94×105% and 950A/W respectively. This highlights the possibility of producing effective optoelectronic devices using the rGO and WSe<sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> Interface.