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Proceedings Paper

Synthesis and optical properties of CdS quantum dot-embedded silica film for luminescent down-shifting layer
Author(s): Zhenyi Chen; Juan Qin; Xiaoli Zhang; Min Zhang; Weimin Shi; Linjun Wang
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Paper Abstract

In this paper, silica thin films with different CdS quantum dot concentrations are deposited on glass substrates by a sol-gel dip-coating process, followed by thermal treatment at different annealing temperatures. The effects of CdS concentration and annealing temperature on the structural and optical properties of the composite films are investigated through X-ray diffraction, UV-Vis spectroscopy and photoluminescence spectra. Results show that the CdS crystallites with diameter of several nanometers in silica matrix are in cubic phase and shows preferred orientation of (200). The Stokes shift of about 0.3eV between its absorption peak and emission peak makes the CdS composite film be possible as an efficient light shifter to solar cells.

Paper Details

Date Published: 18 February 2011
PDF: 4 pages
Proc. SPIE 7995, Seventh International Conference on Thin Film Physics and Applications, 79952M (18 February 2011); doi: 10.1117/12.888425
Show Author Affiliations
Zhenyi Chen, Shanghai Univ. (China)
Juan Qin, Shanghai Univ. (China)
Xiaoli Zhang, Shanghai Univ. (China)
Min Zhang, Shanghai Univ. (China)
Weimin Shi, Shanghai Univ. (China)
Linjun Wang, Shanghai Univ. (China)

Published in SPIE Proceedings Vol. 7995:
Seventh International Conference on Thin Film Physics and Applications
Junhao Chu; Zhanshan Wang, Editor(s)

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