Gold-plasmon enhanced solar-to-hydrogen conversion on the {001} facets of anatase TiO sub(2) nanosheets

Gold-plasmon enhanced solar-to-hydrogen conversion on the {001} facets of anatase TiO sub(2) nanosheets

A 64-fold improved efficiency of solar-to-hydrogen conversion (SHC) was achieved viaexposing Au nanoparticles (NPs) on the {001} facets of anatase TiO sub(2) nanosheets. The SHC follows a surface plasmon resonance-mediated electron injection mechanism, where Au NPs can not only harvest visible light...

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Veröffentlicht in:Energy & environmental science 2014-02, Vol.7 (3), p.973-977
Hauptverfasser: Long, Jinlin, Chang, Hongjin, Gu, Quan, Xu, Jie, Fan, Lizhou, Wang, Shuchao, Zhou, Yangen, Wei, Wei, Huang, Ling, Wang, Xuxu, Liu, Ping, Huang, Wei
Format: Artikel
Sprache:eng
Schlagworte:
Anatase
Conversion
Electromagnetic fields
Gold
Nanoparticles
Nanostructure
Semiconductors
Titanium dioxide
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Zusammenfassung:A 64-fold improved efficiency of solar-to-hydrogen conversion (SHC) was achieved viaexposing Au nanoparticles (NPs) on the {001} facets of anatase TiO sub(2) nanosheets. The SHC follows a surface plasmon resonance-mediated electron injection mechanism, where Au NPs can not only harvest visible light and convert them to free energetic electrons, but promote the SHC by increasing the electron-hole pair formation rate driven by the electromagnetic field formed nearby the semiconductor.
ISSN:1754-5692
1754-5706
DOI:10.1039/c3ee43289k