Self-powered diamond/β-Ga2O3 photodetectors for solar-blind imaging

• Published in: Journal of materials chemistry. C, Materials for optical and electronic devices Vol. 6; no. 21; pp. 5727 - 5732
• Main Authors: Chen, Yan-Cheng, Lu, Ying-Jie, Lin, Chao-Nan, Tian, Yong-Zhi, Gao, Chao-Jun, Dong, Lin, Shan, Chong-Xin
• Format: Journal Article
• Language: English
• Published: Cambridge Royal Society of Chemistry 2018
• Subjects: Diamonds; Gallium oxides; Heterojunctions; Image quality; Photometers; Power supplies

Self-powered solar-blind photodetectors based on diamond/β-Ga 2 O 3 heterojunctions have been fabricated. Under zero bias, these photodetectors show a peak responsivity of 0.2 mA W −1 , and a sharp cutoff wavelength of 270 nm. The UV/visible rejection ratio is more than two orders of magnitude, indi...