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Journal of Dispersion Science and Technology Volume 27, 2006 - Issue 2
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Original Articles

Photoluminescence Properties of Silica Xerogels Co‐doped with Eu3+ Ions and CdS Nanoparticles

Jin Mu Department of Chemistry, East China University of Science and Technology, Shanghai, ChinaCorrespondence[email protected]
,
Leihua Xu Department of Chemistry, East China University of Science and Technology, Shanghai, China
,
Xiangqing Li Department of Chemistry, East China University of Science and Technology, Shanghai, China
,
Zhizhen Xu Department of Chemistry, East China University of Science and Technology, Shanghai, China
,
Qinglian Wei Department of Chemistry, East China University of Science and Technology, Shanghai, China
,
Hua Sun Department of Chemistry, East China University of Science and Technology, Shanghai, China
&
Shizhao Kang Department of Chemistry, East China University of Science and Technology, Shanghai, China
 show all
Pages 235-238 | Received 06 Jun 2005, Accepted 11 Jun 2005, Published online: 06 Feb 2007
 
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Abstract

Silica xerogels doped with Eu3+ ions and co‐doped with Eu3+ ions and CdS nanoparticles were prepared using a two‐step hydrolysis process. The effect of temperature on photoluminescence properties of Eu3+‐doped silica xerogel was investigated. The results showed that the photoluminescence of Eu3+‐doped silica xerogel was significantly dependent on the temperature of heat treatment. The study of the photoluminescence of co‐doped xerogels showed that the defect emission of silica was weakened due to competition among defects, CdS nanoparticles, and Eu3+ ions.

Acknowledgments

This work was financially supported by Excellent Young Teacher Program and Research Foundation of Returning Student Abroad, MOE of China. The authors also thank Shanghai Education Committee for support.

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