TY - JOUR
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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U2 - 10.1021/acsanm.9b01333
DO - 10.1021/acsanm.9b01333
M3 - Article
VL - 2
SP - 6343
EP - 6351
JO - ACS Applied Nano Materials
JF - ACS Applied Nano Materials
SN - 2574-0970
IS - 10
ER -