Improved temporal stability of the second-order nonlinear optical effect in a sol-gel matrix bearing an active chromophore

被引：39

作者：

Choi, DH ^{[1
]}

Park, JH

Rhee, TH

Kim, N

Lee, SD

机构：

[1] Kyung Hee Univ, ILRI, Dept Text Engn, Div Mat Sci & Technol, Yongin 449701, Kyung Ki Do, South Korea

[2] Samsung Elect Co Ltd, Ctr Res & Dev, Suwon 440600, South Korea

[3] Korea Inst Sci & Technol, Div Polymer Res, Seoul 130650, South Korea

[4] Seoul Natl Univ, Sch Elect Engn, Seoul 151742, South Korea

来源：

CHEMISTRY OF MATERIALS | 1998年 / 10卷 / 03期

关键词：

D O I：

10.1021/cm970311h

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：

A second-order nonlinear optical (NLO) chromophore (disperse red 1) was reacted with (3-isocyanatopropyl)triethoxysilane to form a functionalized silicon alkoxide precursor (SGDR1). To improve the temporal stability of the second-order NLO effect, we employed a thermal cross-link between the organic side groups themselves. (3-Glycidoxypropyl)trimethoxysilane was mixed with SGDR1 in tetrahydrofuran (SGDR1/GPTS). We compared the temporal stability of the poled samples with SGDR1 and SGDR1/GPTS. We investigated second-order NLO properties of sol-gel films by virtue of second harmonic generation (SHG) and linear electrooptic (E/O) coefficient measurements for the purpose. We achieved much improvement in the temporal stability of second-order NLO effect at high temperature with the heterogeneous films.

引用

页码：705 / 709

页数：5

共 20 条

[1] INTERFACES AND CONFINED ENVIRONMENTS .23. ORGANIC FLUORESCENT DYES TRAPPED IN SILICA AND SILICA TITANIA THIN-FILMS BY THE SOL-GEL METHOD - PHOTOPHYSICAL, FILM AND CAGE PROPERTIES [J].