Preparation and Characterization of Silica-Titania Optical Films Codoped with Er3+ and SnO2 Nanocrystals

被引：0

作者：

Xu Jian ^{[1
]}

Shen Liangbiao ^{[1
]}

Martucci, A. ^{[2
]}

机构：

[1] Ningbo Univ, Ningbo 315211, Zhejiang, Peoples R China

[2] Univ Padua, I-35131 Padua, Italy

来源：

RARE METAL MATERIALS AND ENGINEERING | 2012年 / 41卷

关键词：

sol-gel films; Er3+-doping; SnO2; nanocrystals; photoluminescence; ENERGY-TRANSFER; WAVE-GUIDES; RARE-EARTH; LUMINESCENCE; GEL; PHOTOLUMINESCENCE; GLASSES;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Sol-gel derived 90%SiO2-10%TiO2 optical films (refractive index 1.50, film thickness 2.78 mu m) codoped with Er3+ and SnO2 nanoparticles were prepared. The crystalline phases, shapes and sizes of nanocrystals in the sintered sol-gels were investigated by X-ray diffraction and TEM. Rutile-type structured SnO2 nanocrystals (4 nm in size) were formed. FTIR spectra of the films were discussed. Fluorescence measurements of Er3+ in slab waveguides were performed in lightwave-guiding configuration by prism-coupling, to discern the emission of Er3+ film and nanoparticles environments, Er3+ photo-luminescence intensity was enhanced 10 times due to SnO2 nanoparticles in the film.

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页码：578 / 581

页数：4

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