Journal
NANOSCALE
Volume 7, Issue 1, Pages 77-81Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4nr03735a
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Funding
- National Natural Science Foundation of China [21006068, 21222604, 51302185]
- Program for New Century Excellent Talents in University [NCET-10-0611]
- Specialized Research Fund for the Doctoral Program of Higher Education [2012003, 2110024]
- Scientific Research Foundation for the Returned Overseas Chinese Scholars (MoE)
- Program of Introducing Talents of Discipline to Universities [B06006]
- Natural Science Foundation of Tianjin City [13JCYBJC37000]
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This paper describes the synthesis of Au nanoparticle sensitized ZnO nanopencil arrays on F-doped SnO2 substrates by an aqueous chemical growth and subsequent photoreduction method. The Au-ZnO nanopencil arrays yield a photocurrent of similar to 1.5 mA cm(-2) at 1V versus Ag/AgCl. The enhanced photocurrent is attributed to the surface plasmon resonance effect of Au nanoparticles and the prolonged lifetime of the photo-generated electron-hole pairs. The improved stability of ZnO is due to the plasmon resonance energy transfer process enabled by the Au nanoparticles, which enhances the electric field intensity in a small, well-defined location of the ZnO semiconductor.
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