Issue 33, 2009
From the journal:

Journal of Materials Chemistry

Fabrication of ZnO/CdS core/shell nanowire arrays for efficient solar energy conversion

Youngjo Tak,a   Suk Joon Hong,b   Jae Sung Leeb  and  Kijung Yong*a  

* Corresponding authors

a Surface Chemistry Laboratory of Electronic Materials, Department of Chemical Engineering, POSTECH (Pohang University of Science and Technology), Pohang, Korea
E-mail: kyong@postech.ac.kr.
Fax: +82 54-279-8298
Tel: +82 54-279-2278

b Eco-friendly Catalysis and Energy Laboratory, Department of Chemical Engineering, POSTECH (Pohang University of Science and Technology), Pohang, Korea

Abstract

ZnO/CdS core/shell nanowire heterostructure arrays are fabricated by a two-step chemical solution method for use in semiconductor-sensitized photoelectrochemical cells (PECs). The successive ion layer adsorption and reaction (SILAR) shows a remarkable controllability of CdS shell thickness, which affects visible-light absorption properties and PEC performances of the heterostructures. The cell has a high short-circuit photocurrent density of 7.23 mA/cm2 with a power conversion efficiency of 3.53% under AM 1.5G illumination at 100 mW/cm2. These results demonstrate that the ZnO/CdS core/shell heterostructure nanowire arrays can provide a facile and compatible frame for the potential applications in nanowire-based solar cells.

Graphical abstract: Fabrication of ZnO/CdS core/shell nanowire arrays for efficient solar energy conversion

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Article information

DOI
https://doi.org/10.1039/B904993B
Article type
Paper
Submitted
11 Mar 2009
Accepted
04 Jun 2009
First published
30 Jun 2009

J. Mater. Chem., 2009,19, 5945-5951

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Fabrication of ZnO/CdS core/shell nanowire arrays for efficient solar energy conversion

Y. Tak, S. J. Hong, J. S. Lee and K. Yong, J. Mater. Chem., 2009, 19, 5945 DOI: 10.1039/B904993B

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