Ultraviolet/Visible Photodetectors Based on p-n NiO/ZnO Nanowires Decorated with Pd Nanoparticles

Cheng Liang Hsu, Yu Che Wang, Sheng Po Chang, Shoou Jinn Chang

研究成果: Article

摘要

Chemical solutions consisting of NiO/ZnO p-n heterojunction nanowires (NWs) decorated with Pd nanoparticles on a glass substrate were used to fabricate an ultraviolet (UV)/visible photodetector. The photodetector was composed of ZnO hexagonal wurtzite and NiO cubic crystalline structures. A few NiO nanograins were found to epitaxially grow on the ZnO NW surface. The current-voltage curve for the photodetector exhibited rectification in the dark and under green and blue light-emitting diode (LED) illumination, whereas an approximately linear current-voltage curve was found under UV LED illumination. The Igreen/Idark, Iblue/Idark, and IUV/Idark ratios for the photodetector were 91.4, 403.2, and 1.25 × 105, respectively. Multilayer structures of the photodetector are sensitive toward the UV and visible bands.

原文English
頁(從 - 到)6343-6351
頁數9
期刊ACS Applied Nano Materials
2
發行號10
DOIs
出版狀態Published - 2019 十月 25

指紋

Photodetectors
Nanowires
Nanoparticles
Light emitting diodes
Lighting
Electric potential
Heterojunctions
Multilayers
Crystalline materials
Glass
Substrates

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

引用此文

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title = "Ultraviolet/Visible Photodetectors Based on p-n NiO/ZnO Nanowires Decorated with Pd Nanoparticles",
abstract = "Chemical solutions consisting of NiO/ZnO p-n heterojunction nanowires (NWs) decorated with Pd nanoparticles on a glass substrate were used to fabricate an ultraviolet (UV)/visible photodetector. The photodetector was composed of ZnO hexagonal wurtzite and NiO cubic crystalline structures. A few NiO nanograins were found to epitaxially grow on the ZnO NW surface. The current-voltage curve for the photodetector exhibited rectification in the dark and under green and blue light-emitting diode (LED) illumination, whereas an approximately linear current-voltage curve was found under UV LED illumination. The Igreen/Idark, Iblue/Idark, and IUV/Idark ratios for the photodetector were 91.4, 403.2, and 1.25 × 105, respectively. Multilayer structures of the photodetector are sensitive toward the UV and visible bands.",
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T1 - Ultraviolet/Visible Photodetectors Based on p-n NiO/ZnO Nanowires Decorated with Pd Nanoparticles

AU - Hsu, Cheng Liang

AU - Wang, Yu Che

AU - Chang, Sheng Po

AU - Chang, Shoou Jinn

PY - 2019/10/25

Y1 - 2019/10/25

N2 - Chemical solutions consisting of NiO/ZnO p-n heterojunction nanowires (NWs) decorated with Pd nanoparticles on a glass substrate were used to fabricate an ultraviolet (UV)/visible photodetector. The photodetector was composed of ZnO hexagonal wurtzite and NiO cubic crystalline structures. A few NiO nanograins were found to epitaxially grow on the ZnO NW surface. The current-voltage curve for the photodetector exhibited rectification in the dark and under green and blue light-emitting diode (LED) illumination, whereas an approximately linear current-voltage curve was found under UV LED illumination. The Igreen/Idark, Iblue/Idark, and IUV/Idark ratios for the photodetector were 91.4, 403.2, and 1.25 × 105, respectively. Multilayer structures of the photodetector are sensitive toward the UV and visible bands.

AB - Chemical solutions consisting of NiO/ZnO p-n heterojunction nanowires (NWs) decorated with Pd nanoparticles on a glass substrate were used to fabricate an ultraviolet (UV)/visible photodetector. The photodetector was composed of ZnO hexagonal wurtzite and NiO cubic crystalline structures. A few NiO nanograins were found to epitaxially grow on the ZnO NW surface. The current-voltage curve for the photodetector exhibited rectification in the dark and under green and blue light-emitting diode (LED) illumination, whereas an approximately linear current-voltage curve was found under UV LED illumination. The Igreen/Idark, Iblue/Idark, and IUV/Idark ratios for the photodetector were 91.4, 403.2, and 1.25 × 105, respectively. Multilayer structures of the photodetector are sensitive toward the UV and visible bands.

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