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Chromophores L1 and L2 based on modified triphenylamine donors with diverse steric hindrance groups, have been designed in order to achieve large macroscopic r33 value of NLO polymers comparing to traditional triarylaminophenyl chromophore T1. In electro-optic activities, the doped film L1-APC and L2-APC showed r33 value of 37pm/V and 49pm/V at the concentration of 25wt%, which were more than two...
One novel second order nonlinear optical chromophore based on benzoxazin donor and tricyanovinyldihydrofuran acceptor linked together via thiophene bridge has been synthesized and characterized. According to cyclic voltammetry measurement, chromophore Z showed low energy gap. In addition, chromophore Z displayed good thermal stability with the onset decomposition temperature over 221°C. The electro-optic...
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