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Issue 1, 2015
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Au nanoparticle sensitized ZnO nanopencil arrays for photoelectrochemical water splitting

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Abstract

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 ∼1.5 mA cm−2 at 1 V 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.

Graphical abstract: Au nanoparticle sensitized ZnO nanopencil arrays for photoelectrochemical water splitting

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Article information


Submitted
04 Jul 2014
Accepted
16 Jul 2014
First published
24 Jul 2014

Nanoscale, 2015,7, 77-81
Article type
Communication

Au nanoparticle sensitized ZnO nanopencil arrays for photoelectrochemical water splitting

T. Wang, R. Lv, P. Zhang, C. Li and J. Gong, Nanoscale, 2015, 7, 77
DOI: 10.1039/C4NR03735A

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