Controlled Growth of SnO2 Nanocrystals in Eu3+-Doped SiO2-SnO2 Planar Waveguides: A Spectroscopic Investigation

被引：26

作者：

Bhaktha, B. N. Shivakiran ^{[1
,2
,3
,4
,5
]}

Kinowski, Christophe ^{[1
,2
]}

Bouazaoui, Mohamed ^{[2
,6
]}

Capoen, Bruno ^{[2
,6
]}

Robbe-Cristini, Odile ^{[1
,2
]}

Beclin, Franck ^{[7
]}

Roussel, Pascal ^{[8
]}

Ferrari, Maurizio ^{[3
]}

Turrell, Sylvia ^{[1
,2
]}

机构：

[1] Univ Lille 1, LASIR, CNRS, UMR 8516, F-59655 Villeneuve Dascq, France

[2] Univ Lille 1, CERLA, F-59655 Villeneuve Dascq, France

[3] CNR, IFN, CSMFO Lab, I-38050 Povo, Italy

[4] Univ Trent, Dipartimento Fis, CSMFO Lab, I-38050 Trento, Italy

[5] Univ Nice Sophia Antipolis, LPMC, CNRS, UMR 6622, F-06108 Nice 02, France

[6] Univ Lille 1, PhLAM, CNRS, UMR 8523, F-59655 Villeneuve Dascq, France

[7] Univ Lille 1, LSPES, CNRS, UMR 8008, F-59655 Villeneuve Dascq, France

[8] ENSCL, UCCS, CNRS, UMR 8181, F-59652 Villeneuve Dascq, France

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2009年 / 113卷 / 52期

关键词：

SNO2-SIO2; GLASS-CERAMICS; RAMAN; SIZE; PHOTONICS; SENSOR;

D O I：

10.1021/jp907764p

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We report on the fabrication of Eu3+-doped SiO2-SnO2 low-loss (0.8 dB/cm at 632.8 nm) glass-ceramic planar waveguides, fabricated by the sol-gel technique and dip-coating processing. The effects of heat treatments on the growth and evolution of SnO2 nanocrystals in the matrix were investigated using different spectroscopic tools. In situ high-temperature X-ray diffraction allowed for the determination of the crystallization temperature and confirmed the formation of tetragonal rutile SnO2 crystals. The effect of crystallization on the optical properties and oil the photoluminescence of Eu3+ ions was also studied. Low-frequency Raman scattering was successfully used to determine the crystal size, and the results obtained were found to be consistent with transmission electron microscopy measurements. The breakage of Si-O-Sn linkages during the formation of SnO2 nanocrystals in the matrix was investigated by Fourier-transform infrared spectroscopy.

引用

页码：21555 / 21559

页数：5

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