Self-powered diamond/β-Ga2O3 photodetectors for solar-blind imaging
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, indicatin...
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| Published in | Journal of materials chemistry. C, Materials for optical and electronic devices Vol. 6; no. 21; pp. 5727 - 5732 |
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| Main Authors | , , , , , , |
| Format | Journal Article |
| Language | English |
| Published |
Cambridge
Royal Society of Chemistry
2018
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| Subjects | |
| Online Access | Get full text |
| ISSN | 2050-7526 2050-7534 |
| DOI | 10.1039/c8tc01122b |
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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. |
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| AbstractList | 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. |
| Author | Yan-Cheng, Chen Yong-Zhi Tian Chao-Jun, Gao Ying-Jie, Lu Chao-Nan, Lin Lin, Dong Chong-Xin, Shan |
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| Snippet | Self-powered solar-blind photodetectors based on diamond/β-Ga2O3 heterojunctions have been fabricated. Under zero bias, these photodetectors show a peak... |
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| SubjectTerms | Diamonds Gallium oxides Heterojunctions Image quality Photometers Power supplies |
| Title | Self-powered diamond/β-Ga2O3 photodetectors for solar-blind imaging |
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