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Issue 6, 2013
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Fabrication of ZnO/CdS/Cu2ZnSnS4 p–n heterostructure nanorod arrays via a solution-based route

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Abstract

ZnO/CdS/Cu2ZnSnS4 p–n heterostructure nanorod arrays were fabricated through a novel solution-based method using ZnO nanorod arrays as the template. Typical ZnO/CdS/Cu2ZnSnS4 heterostructure nanorod arrays consist of ZnO/CdS core/sheath nanorods and Cu2ZnSnS4 nanocrystallines grown on the primary ZnO/CdS core/sheath nanorods. In the ZnO/CdS/Cu2ZnSnS4 heterostructure nanorods arrays, ZnO core and CdS sheath are single crystalline, while Cu2ZnSnS4 nanoparticles are polycrystalline. The possible formation mechanism of ZnO/CdS/Cu2ZnSnS4 heterostructure nanorod arrays is also discussed in detail. The ZnO/CdS/Cu2ZnSnS4 heterostructure nanorod arrays possess a broad and enhanced optical absorption from the ultraviolet to the near-infrared region. A good rectification characteristic is observed in the IV curve of ZnO/CdS/Cu2ZnSnS4 nanorod, which confirms that the ZnO/CdS/Cu2ZnSnS4 nanorod is a p–n heterostructure. Micro-Raman spectroscopy was used to investigate the vibrating properties of ZnO/CdS/Cu2ZnSnS4 heterostructure nanorod arrays. The results indicate that the ZnO/CdS/Cu2ZnSnS4 p–n heterostructure nanorod arrays may shed light on new opportunities for nanoscale optoelectronic devices.

Graphical abstract: Fabrication of ZnO/CdS/Cu2ZnSnS4 p–n heterostructure nanorod arrays via a solution-based route

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Publication details

The article was received on 23 Aug 2012, accepted on 21 Nov 2012 and first published on 22 Nov 2012


Article type: Paper
DOI: 10.1039/C2CE26829A
Citation: CrystEngComm, 2013,15, 1139-1145
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    Fabrication of ZnO/CdS/Cu2ZnSnS4 p–n heterostructure nanorod arrays via a solution-based route

    X. Liu, C. Wang, J. Xu, X. Liu, R. Zou, L. Ouyang, X. Xu, X. Chen and H. Xing, CrystEngComm, 2013, 15, 1139
    DOI: 10.1039/C2CE26829A

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