Tin doped silica by sol-gel method:: doping effects on the SiO2 Raman spectrum

被引：0

作者：

Chiodini, N ^{[1
]}

Meinardi, F ^{[1
]}

Morazzoni, F ^{[1
]}

Paleari, A ^{[1
]}

Scotti, R ^{[1
]}

Spinolo, G ^{[1
]}

机构：

[1] Univ Milan, INFM, Dipartimento Sci Mat, I-20125 Milan, Italy

来源：

SOLID STATE COMMUNICATIONS | 1999年 / 109卷 / 03期

关键词：

insulators; chemical synthesis; inelastic light scattering;

D O I：

暂无

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Glasses of Sn-doped SiO2 were obtainted by the sol-gel method from two different Sn precursors, Sn(OtBu)(4) and Sn(OOCCH3)(2)(C4H9)(2) Structural modifications from xerogel to glass were monitored by Raman spectroscopy at different steps of the condensation process. The shifts of the SiO2 intrinsic vibrational modes show that Sn-doping can influence the structural properties of SiO2 even at relatively low tin concentrations. The changes depend on the thermal treatment and the preparation method. It is suggested that the formation of the SiO2 network is affected by the tin doping process during the early stages of the condensation. (C) 1998 Published by Elsevier Science Ltd.

引用

页码：145 / 150

页数：6

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