Synthesis and optical properties of CdS quantum dots embedded in silica matrix thin films and their applications as luminescent solar concentrators

被引：97

作者：

Reda, S. M. ^{[1
]}

机构：

[1] Benha Univ, Fac Sci, Dept Chem, Banha, Egypt

来源：

ACTA MATERIALIA | 2008年 / 56卷 / 02期

关键词：

CdS; luminescent solar collector; sol; -; gel; stokes shift;

D O I：

10.1016/j.actamat.2007.09.017

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

US quantum dot (QD) solar concentrators were prepared by a sol - gel spin coating method. Thin films were prepared at different annealing temperatures and characterized by X-ray diffraction and spectroscopic techniques. The effect of temperature on the optical properties of US QDs embedded in silica matrix was assessed before and after exposure of the samples to sunlight for up to 4 weeks. The results show that as the annealing temperature increases, the fluorescent intensity and Stokes shift decrease. Therefore lower temperatures are preferable for the preparation of highly efficient QD solar concentrator systems. (c) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

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页码：259 / 264

页数：6

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