BLUE EMISSION IN TETRAETHOXYSILANE AND SILICA-GELS

被引：54
作者：
GARCIA, J
MONDRAGON, MA
TELLEZ, C
CAMPERO, A
CASTANO, VM
机构：
[1] PONTIFICIA UNIV CATOLICA RIO DE JANEIRO,DEPT QUIM,BR-2245340 RIO JANEIRO,BRAZIL
[2] UAM 1,DEPT QUIM,MEXICO CITY 09000,DF,MEXICO
来源：
MATERIALS CHEMISTRY AND PHYSICS | 1995年 / 41卷 / 01期
关键词：
GELS; TETRAETHOXYSILANE; LUMINESCENCE;
D O I：
10.1016/0254-0584(95)01498-5
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Tetraethoxysilane (TEOS), a well-known SiO2 precursor, and silica gels prepared with it were characterized in terms of their optical properties in the 200-800 nm range. A distinctive blue emission is detected not only in the gels but also in the TEOS itself. Further heat treatments of the gels allowed the evolution of the blue signal to be followed; the origin of this emission is discussed in terms of the structure of the material.
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页码：15 / 17
页数：3
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