Abstract
In this paper, functionalized alkoxysilane dye (ICTES-STC) was formed by the reaction of two-dimensional spindle-type chromophores (STC) with 3-isocyanatopropyltriethoxysilane (ICTES). The transparent films having silica network matrix and covalently bonded chromophores were fabricated via the sol–gel process. From TGA thermogram, the initial decomposition temperature of the hybrid film was determined to be 269 °C. The electro-optic (EO) coefficient (r 33) of the poled films was measured to be around 12 pm/V by Teng–Man technique. The thermal stability of the NLO coefficient of the film was investigated by the depoling experiment and temporal decay test, and the result showed that the hybrid film had a good thermal stability, implying its potential applications for EO devices.
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