Abstract
A self-powered, ZnO nanorod arrays (NRs)/GaN/Si heterojunction ultraviolet (UV) photodetector was synthesized straightforwardly. This high-performance device has an excellent response under UV radiation without bias. The tensile stress at the ZnO/GaN/Si interface presumably strengthened the built-in electric field, which effectively separated and extracted the photogenerated electron–hole pairs. These results may provide a new synthetic pathway towards low-cost, high-performance, self-powered ZnO/GaN heterojunction UV photodetectors.
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Acknowledgements
This work was supported by LiaoNing Revitalization Talents Program (no. XLYC1807004), Joint Research Fund Liaoning-Shenyang National Laboratory for Materials Science (2019JH3/30100005, 2019010281-JH3/301), Guangxi Key Laboratory of Precision Navigation Technology and Application, the Guilin University of Electronic Technology (No. DH2020015), Open Foundation of Zhenjiang Key Laboratory for high technology research on marine functional films (ZHZ2019005), The Sun Bird Undergraduate Research Project of Dalian Minzu University (no. tyn2021249), and Training Program of Innovation and Entrepreneurship for Undergraduates in Dalian Minzu University (202112026013).
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Yan, M., Yu, N., Du, S. et al. A self-powered ZnO nanoarrays/GaN heterojunction ultraviolet photodetectors grown on Si(111) substrate. Bull Mater Sci 45, 105 (2022). https://doi.org/10.1007/s12034-022-02679-4
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DOI: https://doi.org/10.1007/s12034-022-02679-4