Investigation of dye-matrix interactions in sol-gel derived hybrid organic-inorganic nanocomposites

被引:9
作者
Guermeur, C [1 ]
Sanchez, C [1 ]
Schaudel, B [1 ]
Nakatani, K [1 ]
Delaire, JA [1 ]
DelMonte, F [1 ]
Levy, D [1 ]
机构
[1] CORNING SA,CTR RECH FONTAINEBLEAU,F-77210 AVON,FRANCE
来源
SOL-GEL OPTICS IV | 1997年 / 3136卷
关键词
organic-inorganic hybrids; sol-gel; photochromic dyes; porphyrins; dye-matrix interactions; transition metal;
D O I
10.1117/12.284116
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Several dyes such as a spiropyran, a spirooxazine and two tetraarylporphyrins have been incorporated inside hybrid organic-inorganic matrices synthesized through the acid hydrolysis of dimethyldiethoxysilane and zirconium n-propoxide. These matrices are nanocomposites with well defined hydrophilic (zirconium oxopolymer nodules) and hydrophobic (polydimthylsiloxane chains) domains. As a consequence, they are good candidates to investigate dye-matrix interactions in matrices containing transition metal. These interactions are shown to occur through hydrogen bonds, covalent bonds or Lewis acid-base type bonds. They strongly modify the optical response of the dyes (absorption-emission spectra, lifetime, kinetics..).
引用
收藏
页码:10 / 19
页数:10
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