SYNTHESIS AND SECOND-ORDER NONLINEARITY OF NOVEL ORGANIC/INORGANIC NETWORK BY SOL-GEL PROCESS

doi:10.7517/j.issn.1674-0475.2002.04.276

Imaging Science and Photochemistry ›› 2002, Vol. 20 ›› Issue (4): 276-282.DOI: 10.7517/j.issn.1674-0475.2002.04.276

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SYNTHESIS AND SECOND-ORDER NONLINEARITY OF NOVEL ORGANIC/INORGANIC NETWORK BY SOL-GEL PROCESS

WANG Jian¹, ZHANG Ling-zhi¹, CHEN Yong-lie¹, LIANG Zhao-xi¹, CAI Zhi-gang²

1. Institute of Polymer Science, School of Chemistry and Chemical Engineering, Zhongshan University, Guangzhou 510275, P. R. China;
2. State Key Laboratory of Optoelectronics Materials and Technologies, Zhongshan University, Guangzhou 510275, P. R. China

Received:2001-11-16 Revised:2002-02-07 Online:2002-07-23 Published:2002-07-23

Abstract

Abstract: Chromophore with two active OH groups 4’-(N,N-dihydroxyethyl)amino-4-nitroazobenzene(DR19) was synthesized and a novel organic/inorganic polymer network with fine second-order nonlinearities was designed and prepared by double-end crosslinking of DR19 through sol-gel process.It was observed that this polymer film had good SHG thermal stability under room and elevated temperatures.The results show that this crosslinking system formed a dense silicon-oxygen network structure,thus could effectively inhibit the orientation relaxation of the chromophore molecules and hence improve the thermal stability of second-order nonlinearity of the material.

Key words: sol-gel, organic/inorganic polymer network, azobenzene chromophore, second-order nonlinearity

CLC Number:

WANG Jian, ZHANG Ling-zhi, CHEN Yong-lie, LIANG Zhao-xi, CAI Zhi-gang. SYNTHESIS AND SECOND-ORDER NONLINEARITY OF NOVEL ORGANIC/INORGANIC NETWORK BY SOL-GEL PROCESS[J]. Imaging Science and Photochemistry, 2002, 20(4): 276-282.

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SYNTHESIS AND SECOND-ORDER NONLINEARITY OF NOVEL ORGANIC/INORGANIC NETWORK BY SOL-GEL PROCESS

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