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Issue 21, 2018
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Self-powered diamond/β-Ga2O3 photodetectors for solar-blind imaging

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Abstract

Self-powered solar-blind photodetectors based on diamond/β-Ga2O3 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, indicating that these photodetectors respond mainly to solar-blind irradiation. These photodetectors can exhibit repeatability and stability without any external power supply. High quality images have been obtained using such a self-powered photodetector as a sensing pixel of an imaging system, and this study is the first report on the solar-blind imaging of Ga2O3 based photodetectors.

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

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Publication details

The article was received on 07 Mar 2018, accepted on 09 May 2018 and first published on 09 May 2018


Article type: Paper
DOI: 10.1039/C8TC01122B
Citation: J. Mater. Chem. C, 2018,6, 5727-5732
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    Self-powered diamond/β-Ga2O3 photodetectors for solar-blind imaging

    Y. Chen, Y. Lu, C. Lin, Y. Tian, C. Gao, L. Dong and C. Shan, J. Mater. Chem. C, 2018, 6, 5727
    DOI: 10.1039/C8TC01122B

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