论文部分内容阅读
考虑到聚合物基体对生色团的取向的阻尼作用 ,以及外电场对生色团的极化作用 ,在已有的生色团气体取向模型基础上 ,建立了非气体取向模型 .并利用数值计算方法求解了这一非气体取向模型方程 .讨论了外加电场、温度对生色团取向的动态过程和稳态分布的影响 ,比较了两模型的计算结果 .采用椭圆偏振法 ,测量了光折变聚合物PVK∶5CB∶C60 中的生色团 5CB在聚合物基体PVK中动态取向过程 .给出了生色团的稳态和动态取向参量随外加电场和温度的变化关系 .理论与实验的比较 ,进一步证明了非气体取向模型的合理性
Considering the damping effect of the polymer matrix on the chromophore orientation and the polarization of the chromophore by the external electric field, a non-gas orientation model was established based on the existing chromophore gas orientation model. The non-gas orientation model equation is solved by the calculation method. The influence of applied electric field and temperature on the chromophore orientation and the steady state distribution are discussed, and the results of the two models are compared. Using the ellipsometry method, The chromophore 5CB in the polymer PVK:5CB:C60 was dynamically oriented in the polymer matrix PVK.The steady-state and dynamic orientation parameters of the chromophore were given as a function of the applied electric field and the temperature.The theoretical and experimental The comparison further proves the rationality of non-gas orientation model