Synthesis and characterization of a sol-gel derived ureasilicate hybrid organic-inorganic matrix containing CdS colloidal particles

被引：11

作者：

Boev, VI ^{[1
]}

Silva, CJR

Hungerford, G

Gomes, MDJ

机构：

[1] Univ Minho, Dept Quim, P-4710057 Braga, Portugal

[2] Univ Minho, Dept Fis, P-4710057 Braga, Portugal

来源：

JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY | 2004年 / 31卷 / 1-3期

关键词：

CdS; nanoparticles; sol-gel; ureasilicate; photoluminescence;

D O I：

10.1023/B:JSST.0000047974.33153.e6

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A hybrid organic-inorganic material filled with in situ generated inorganic particles has been synthesised by the homogeneous precipitation of CdS from aqueous solutions of Cd(NO3)(2) and CH3CSNH2. These highly transparent, homogeneous and flexible CdS doped xerogels were prepared by the sol-gel technique using, as precursors, organically modified silicon alkoxide (3-isocyanatepropyltriethoxysilane) and a di-amine functionalized oligopolyoxyethylene (Jeffamine ED-600), which by subsequent hydrolysis and condensation processes formed a solid 3-D network. TEM studies indicate the presence of round nanoparticles around 20 nm in diameter dispersed in a homogeneous amorphous matrix. The samples were also characterized by spectroscopic (UV-visible and photoluminescence) and XRD techniques.

引用

页码：131 / 135

页数：5

共 21 条

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Armand M., 1994, U.S. Patent, Patent No. 5283310

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