电场诱导微结构成型的模拟研究  

Numerical Characterization of the Micro-or Nanopatterning Formation Induced by an Electric Field

作　　者：韩志亮 刘学清[1] HAN Zhiliang;LIU Xueqing(Key Laboratory of Optoelectronic Chemical Materials and Devices,Ministry of Education,Jianghan University,Wuhan 430056,Hubei,China)

机构地区：[1]江汉大学光电化学材料与器件教育部重点实验室,湖北武汉430056

出　　处：《江汉大学学报（自然科学版）》2021年第3期13-20,共8页Journal of Jianghan University：Natural Science Edition

基　　金：湖北省中央引导地方科技发展专项基金资助项目(2019ZYYD005);湖北省教育厅团队创新项目(T201935);武汉市科技攻关项目(2018010401011279)。

摘　　要：随着光电器件的快速发展,聚合物微纳米结构凭借其独特的物理及化学性能广泛应用。空间调制电场诱导聚合物流变成型技术具有广泛适用性,是目前制作聚合物微纳米结构的重要方法。讨论了微结构成型过程及原理,利用COMSOL Multiphysics模拟软件实现图形化电极诱导聚合物微结构成型,分析了影响微结构成型的主要因素,增加电极宽度、电压有利于微结构生长;空气间隙保持不变,减小膜厚有利于微结构生长,同时对比分析了水平集与相场算法,相场算法适用性更好。With the rapid development of optoelectronic devices,polymer with micro-or nanopatterning has been widely used due to their unique physical and chemical properties.The technology of polymer rheology induced by a spatially modulated electric field is an important method for fabricating polymer micro-or nanopatterning and has been widely used.In this paper,the principle of processing polymer microstructure was discussed.A numerical approach for visualizing the full evolution of micro-or nanopatterning based on COMSOL Multiphysic was established,and the effect of the parameters such as electrode width and voltage,dimension of air space on the pattern formation were analyzed.Results showed that enlarging the electrode width and increasing the voltage could promote microstructure formation.When the air gap was fixed,reducing the film thickness helped the formation of microstructure.In addition,the numerical results of the phase-field method were better to agree with experimental observations,in comparison with the results of the level set method.

关 键 词：电场诱导 仿真模拟 微结构 

分 类 号：TQ311[化学工程—高聚物工业]