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Preparation of stable second‐order nonlinear optical films by sol–gel technique
Author(s) -
Wang Shiwei,
Zhao Lisha,
Sun Jie,
Cui Zhanchen,
Zhang Daming
Publication year - 2011
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.1534
Subject(s) - materials science , chromophore , sol gel , spin coating , copolymer , fourier transform infrared spectroscopy , hydrolysis , chemical engineering , relaxation (psychology) , nonlinear optical , coating , nonlinear optics , polymer chemistry , polymer , organic chemistry , nonlinear system , nanotechnology , composite material , chemistry , psychology , social psychology , physics , quantum mechanics , engineering
A stable nonlinear optical (NLO) film containing “T” type alkoxysilane dye was prepared by sol–gel technology. This crosslinked “T” type alkoxysilane dye was synthesized and fully characterized by FTIR, UV–Vis spectra, and 1 H‐NMR. Followed by hydrolysis and copolymerization processes of the alkoxysilane with γ ‐glycidoxypropyl trimethoxysilane (KH560) and tetraethoxysilane (TEOS), high quality inorganic–organic hybrid second‐order NLO films were obtained by spin coating. The “T” type structure of the alkoxysilane was found to be effective for improving the temporal stability of the optical nonlinearity due to the reduction in the relaxation of the chromophore in the film materials. Copyright © 2009 John Wiley & Sons, Ltd.

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