Cadmium sulfide/silicon (CdS/Si) nanowire (NW) heterostructure arrays were prepared using the successive ionic layer adsorption and reaction technique based on etched Si NW templates using p-type (100) silicon wafer. Synthesized CdS/Si NW heterostructures were characterized by scanning electron microscopy (SEM) and X-ray diffraction (XRD), and their optical properties were measured using a ultraviolet–visible spectrophotometer. The results of reflectance spectra show the absorption edge at 460, 470 and 480 nm for 20, 30 and 40 cycles, respectively. XRD analysis indicates the formation of CdS with hexagonal (wurtzite) structure. Also, the presence of CdS was confirmed by both SEM and energy dispersive X-ray. The effect of cycle times on the photoluminescence intensity was also studied. The absorption and emission edges shift slightly towards long wavelength with increasing cycles of adsorption of CdS.
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Research Article|
August 14 2015
Optical performance of cadmium sulfide/silicon nanowire heterostructure arrays prepared by SILAR technique
Haigang Yang;
Haigang Yang
*
Associate Professor, College of Physics and Electronic Engineering, Henan Key Laboratory of Photovoltaic Materials, Henan Normal University, Xinxiang, China; Renewable Energy School, North China Electric Power University, Beijing, China
*Corresponding author e-mail address: hgyang@htu.cn
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Weiwei Cao;
Weiwei Cao
Master Student, College of Physics and Electronic Engineering, Henan Key Laboratory of Photovoltaic Materials, Henan Normal University, Xinxiang, China
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Yurong Jiang;
Yurong Jiang
Associate Professor, College of Physics and Electronic Engineering, Henan Key Laboratory of Photovoltaic Materials, Henan Normal University, Xinxiang, China
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Ruiting Hao;
Ruiting Hao
Associate Professor, Institute of Solar Energy, Yunnan Normal University, Kunming, China
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Guilin Song;
Guilin Song
Associate Professor, College of Physics and Electronic Engineering, Henan Key Laboratory of Photovoltaic Materials, Henan Normal University, Xinxiang, China
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Fanggao Chang
Fanggao Chang
Professor, College of Physics and Electronic Engineering, Henan Key Laboratory of Photovoltaic Materials, Henan Normal University, Xinxiang, China
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*Corresponding author e-mail address: hgyang@htu.cn
Publisher: Emerald Publishing
Received:
December 05 2014
Accepted:
August 11 2015
Online ISSN: 2045-984X
Print ISSN: 2045-9831
ICE Publishing: All rights reserved
2015
Nanomaterials and Energy (2015) 4 (2): 131–135.
Article history
Received:
December 05 2014
Accepted:
August 11 2015
Citation
Yang H, Cao W, Jiang Y, Hao R, Song G, Chang F (2015), "Optical performance of cadmium sulfide/silicon nanowire heterostructure arrays prepared by SILAR technique". Nanomaterials and Energy, Vol. 4 No. 2 pp. 131–135, doi: https://doi.org/10.1680/jnaen.14.00029
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