期刊
NANOSCALE
卷 8, 期 16, 页码 8924-8930出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6nr00089d
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资金
- National Natural Science Foundation of China [61474128, 21503261, 61171043, 51377085, 21477072, 61475109]
- Youth Innovation Fund for Interdisciplinary Research of SARI [Y526453233]
- Science & Technology Commission of Shanghai Municipality [14JC1492900]
- Youth Innovation Promotion Association, CAS [2013302]
- Priority Academic Program Development (PAPD) of Jiangsu Higher Education Institutions
ZnO semiconductor films with periodic 3D nanocave patterns were fabricated by the thermal nano-imprinting technology, which is promising for photodetectors with enhanced light harvesting capability. The Au nanoparticles were further introduced into the ZnO films, which boosts the UV response of ZnO films and extends the photodetection to visible regions. The best UV photoresponse was detected on the 3D nanocave ZnO-Au hybrid films, attributing to the light trapping mechanism of 3D periodic structures and the driving force of the Schottky barrier at the ZnO/Au interface, while the high visible photoresponse of ZnO-Au hybrid films mainly results from the hot electron generation and injection process over the Schottky junctions mediated by Au surface plasmon resonances. The work provides a cost-effective pathway to develop large-scale periodic 3D nanopatterned thin film photodetectors and is promising for the future deployment of high performance optoelectronic devices.
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