A dual-band photodetector based on ZnO nanowires decorated with Au nanoparticles synthesized on a glass substrate

被引：23
作者：
Hsu, Cheng-Liang [1 ]
Chang, Li-Fan [1 ]
Hsueh, Ting-Jen [2 ]
机构：
[1] Natl Univ Tainan, Dept Elect Engn, Tainan 700, Taiwan
[2] Natl Nano Device Labs, Tainan 741, Taiwan
来源：
RSC ADVANCES | 2016年 / 6卷 / 78期
关键词：
FLEXIBLE POLYIMIDE SUBSTRATE; ULTRAVIOLET PHOTODETECTORS; PHOTOCATALYTIC PROPERTIES; HOTWIRE ASSISTANCE; FURNACE SYSTEM; SOLAR-CELLS; THIN-FILMS; NANOSTRUCTURES; UV; EMISSION;
D O I：
10.1039/c6ra09866e
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
ZnO nanowires (NWs) decorated with Au nanoparticles (NPs) of various grain sizes are fabricated into a dual-band photodetector on a glass substrate. The morphology, crystallinity, oxygen vacancy density, optical properties, and responsivity of the ZnO NWs are evaluated using scanning electron microscopy, X-ray diffraction, and photoluminescence spectroscopy. The ZnO NWs decorated with Au NPs had a quantum efficiency of similar to 80.82%, an ultraviolet (UV)-to-visible rejection ratio of 3.41 x 10(2), and UV and green region bands. Au NPs can absorb green light and produce a strong electric field via the localized surface plasmon resonance effect.
引用
收藏
页码：74201 / 74208
页数：8
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