Journal
JOURNAL OF MATERIALS CHEMISTRY C
Volume 6, Issue 21, Pages 5727-5732Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8tc01122b
Keywords
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Funding
- National Natural Science Foundation of China [61604132, U1604263]
- China Postdoctoral Science Foundation [2016M590682]
- National Science Foundation for Distinguished Young Scholars of China [61425021]
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Self-powered solar-blind photodetectors based on diamond/b-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.
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