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장지현

Jang, Ji-Hyun
Structures & Sustainable Energy Lab.
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Hierarchical metal/semiconductor nanostructure for efficient water splitting

Author(s)
Thiyagarajan, PradheepAhn, Hyo-JinLee, Jung-SooYoon, Jong-ChulJang, Ji-Hyun
Issued Date
2013-07
DOI
10.1002/smll.201202756
URI
https://scholarworks.unist.ac.kr/handle/201301/3772
Fulltext
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84879631471
Citation
SMALL, v.9, no.13, pp.2341 - 2347
Abstract
A hierarchically patterned metal/semiconductor (gold nanoparticles/ZnO nanowires) nanostructure with maximized photon trapping effects is fabricated via interference lithography (IL) for plasmon enhanced photo-electrochemical water splitting in the visible region of light. Compared with unpatterned (plain) gold nanoparticles-coated ZnO NWs (Au NPs/ZnO NWs), the hierarchically patterned Au NPs/ZnO NWs hybrid structures demonstrate higher and wider absorption bands of light leading to increased surface enhanced Raman scattering due to the light trapping effects achieved by the combination of two different nanostructure dimensions; furthermore, pronounced plasmonic enhancement of water splitting is verified in the hierarchically patterned Au NPs/ZnO NWs structures in the visible region. The excellent performance of the hierarchically patterned Au NPs/ZnO NWs indicates that the combination of pre-determined two different dimensions has great potential for application in solar energy conversion, light emitting diodes, as well as SERS substrates and photoelectrodes for water splitting. A hierarchically patterned metal/semiconductor nanostructure is fabricated via interference lithography for plasmon-enhanced photoelectrochemical water splitting in the visible region of light. Compared with unpatterned Au NPs/ZnO NWs, the hierarchically patterned structures demonstrate higher and wider absorption bands leading to increased surface enhanced Raman scattering and surface plasmon-enhanced water splitting.
Publisher
WILEY-V C H VERLAG GMBH
ISSN
1613-6810
Keyword (Author)
electrochemical processesgoldhierarchical structuressemiconductorsZnO

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