Abstract
Vertically aligned ZnO nanowires (NWs) were grown on a fluorine-doped tin-oxide-coated glass substrate by a hydrothermal method. Au nanoparticles were well dispersed in the mixed solution of ethanol and deionized water. A simple self-powered ultraviolet detector based on solid–liquid heterojunction was fabricated, utilizing ZnO NWs as active photoanode and such prepared mixed solution as electrolyte. The introduction of Au nanoparticles results in considerable improvements in the responsivity and sensitivity of the device compared with the one using deionized water as electrolyte, which is attributed to the enhanced light harvesting by Au nanoparticles.
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Acknowledgments
This work was supported by National Natural Science Foundation of China under Grant Nos. 51302244, 51172204 and 91333203, Zhejiang Provincial Natural Science Foundation of China under Grant No. LQ13E020001, and Fundamental Research Funds for the Central Universities under Grant No. 2014FZA4008.
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Zeng, Y., Ye, Z., Lu, B. et al. Enhanced photoelectric performance in self-powered UV detectors based on ZnO nanowires with plasmonic Au nanoparticles scattered electrolyte. Appl. Phys. A 122, 296 (2016). https://doi.org/10.1007/s00339-016-9908-y
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DOI: https://doi.org/10.1007/s00339-016-9908-y