中文摘要：

采用修饰LB膜法以二十烷酸（AA）LB膜为模板,通过3,4-乙烯二氧噻吩（EDOT）单体在LB膜亲水基团间聚合,制备了AA/PEDOT复合LB膜。UV-Vis、FT-IR和XPS分析表明EDOT在多层膜中有效聚合,生成了PEDOT导电聚合物;XRR和SIMS分析表明薄膜具有较好的层状有序结构,进一步研究发现EDOT在AA多层膜中的聚合破坏了原有LB膜的有序性,这可能与聚合过程对层状结构产生的破坏作用有关;采用四探针仪及半导体测试仪研究了薄膜导电性能,发现AA/PEDOT多层膜的电导率随处理时间的变化产生突变,这与多层膜中导电通道的＂渝渗＂有关,在有效导电网络连通后电导率发生了突变。测试结果还表明AA/PEDOT膜导电性明显优于PEDOT旋涂膜和ODA-SA/PEDOT-PSS复合膜,这是由于原位制备的PEDOT共轭度较高,且薄膜具有很好的层状有序结构。

英文摘要：

Adopted LB film method, we chose an arachidic acid （AA）/PEDOT multilayer LB film, and polymerized EDOT monomers in hydrophilic group of LB to prepare arachidic acid （AA）/PEDOT multilayer LB film. UV-Vis,FT-IR and XPS analyses implied that EDOT effectively polymerized in film, and thus PEDOT conducting polymer produced. Analyses of XRR and SIMS indicated that film had a well-arranged lamella structure, and further research showed that polymerization of EDOT in AA film destroyed the orderliness of the original LB film. This phenomenon could be related to the destructive effect of polymerization on layered structure. We used four-point probe and semiconductor instrument to study the conductivity property of the film, and observed that when the conductivity of AA/PEDOT film had sudden changes, which was caused by ＂permeability＂ in conducting channel of multilayer film, that is the conductivity had sudden change when effective conduction network connected. The test results also indicated that the conductivity of AA/PEDOT film was obviously better the conductivity of spin-coating PEDOT/PSS film or the conductivity of ODA-SA/PEDOT-PSS film, which due to the higher π structure of PEDOT structure and ordered film structure.