期刊
ACS APPLIED MATERIALS & INTERFACES
卷 8, 期 7, 页码 4287-4291出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.5b11034
关键词
p-type ZnO; homojunction; core-shell nanowire; photodetection; hydrothermal growth
资金
- U.S. Department of Energy, Office of Basic Energy Sciences [DE-FG02-07ER46394]
- MANA, National Institute For Materials Science, Japan
- NSF East Asia Pacific Summer Institutes (EAPSI) program
- Grants-in-Aid for Scientific Research [26246021] Funding Source: KAKEN
Sb doped ZnO nanowires grown using the low-temperature hydrothermal method have the longest reported p-type stability of over 18 months. Using this growth system, bulk homojunction films of core-shell ZnO nanowires were synthesized with either n or p-type cores and the oppositely doped shell. Extensive transmission electron microscopy (TEM) characterization showed that the nanowires remain single crystalline, and the previously reported signs of doping remain intact. The electronic properties of these films were measured, and ultraviolet photo detection was observed. This growth technique could serve as the basis for other optoelectronic devices based on ZnO such as light emitting diodes and photovoltaics.
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