High Responsivity MgZnO Ultraviolet Thin-Film Phototransistor Developed Using Radio Frequency Sputtering

Jyun-Yi Li, Sheng-Po Chang *, Ming-Hung Hsu and Shoou-Jinn Chang
Department of Electrical Engineering and Advanced Optoelectronic Technology Center, Institute of Microelectronics, National Cheng Kung University, Tainan 701, Taiwan
Materials 2017, 10(2), 126

Ultraviolet phototransistors were fabricated using Mg-doped ZnO film to achieve high mobility, a fast on–off transition, and high responsivity under deep UV illumination. Samco PECVD equipment PD-220NA was used for 200 nm thick SiO₂ film deposition as a dielectric layer.

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