Effect of CdS nanoparticles on photoluminescence spectra of Tb3+ in sol-gel-derived silica glasses

被引：18

作者：

Rai, S. ^{[1
]}

Bokatial, L. ^{[1
]}

机构：

[1] Dibrugarh Univ, Dept Phys, Dibrugarh 786004, Assam, India

来源：

BULLETIN OF MATERIALS SCIENCE | 2011年 / 34卷 / 02期

关键词：

Glasses; sol-gel technique; nanoparticles; semiconductors; photoluminescence; EU3+ IONS; FLUORESCENCE; ENHANCEMENT; XEROGELS; TERBIUM;

D O I：

10.1007/s12034-011-0084-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

CdS nanoparticles doped with Tb3 + were synthesized by sol-gel technique. The influence of CdS on the Tb3 + glass was studied by UV-Visible and luminescence spectroscopy. The luminescence intensity of the glasses increased significantly in the presence of CdS nanoparticles. Terbium ions excited into the (5) D (3) level have a rich emission spectrum in the 400-700 nm range decaying to different (7) F (J) levels. The intensity of violet and blue luminescence from (5) D (3) level is highly dependent on Tb3 + concentration, on presence of CdS co-dopant and annealing conditions.

引用

页码：227 / 231

页数：5

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