导电聚合物有序超薄膜材料特性的分析

郑华靖; 徐建华; 蒋亚东; 杨亚杰

光电工程, 2010, 37 (7): 126, 网络出版: 2010-09-07

导电聚合物有序超薄膜材料特性的分析

Analysis of Material Characteristic of Ordered Conducting Polymer Ultrathin Film

论文大纲

郑华靖 ^*徐建华蒋亚东杨亚杰

作者单位

电子科技大学光电信息学院，电子薄膜与集成器件国家重点实验室，成都 610054

导电聚合物聚3 4-乙烯二氧噻吩/聚苯乙烯磺酸 LB 膜光电特性 conducting polymer PEDOT-PSS langmuir-blodgett film electro-optical characteristic

摘要

首次采用LB 膜诱导沉积法制备PEDOT 高度有序导电聚合物薄膜，所采用的工艺是将十八胺(ODA)与聚3,4-乙烯二氧噻吩/聚苯乙烯磺酸(PEDOT-PSS)先形成ODA 包裹PEDOT-PSS 纳米粒子的组装体，然后再将其铺展于气/液界面，制备PEDOT-PSS 复合LB 膜。研究了复合单分子膜在气/液界面的成膜性能，对不同层数的LB 膜进行了较为详细的微观分析和结构表征。采用UV-Vis 光谱对不同层数的复合膜进行了表征，发现ODA-SA/PEDOT-PSS 膜具有比ODA/PEDOT-PSS 膜好得多的成膜性，这是由于生成的氨基酸改善了复合膜的成膜性；FT-IR 和XPS 分析表明固态复合膜中存在静电作用力，复合膜靠静电力在气/液界面进行组装。实验表明，PEDOT-PSS 纳米粒子对单分子层具有包裹作用，形成了稳定的复合单分子膜；在十八胺(ODA)和硬脂酸(SA)摩尔比2：1、亚相温度23℃、PEDOT-PSS 浓度1×10-3 mol/L、压缩速率5 mm/min、拉膜速率为1 mm/min 的条件下薄膜具有较好的成膜性能。

Abstract

A Langmuir-Blodgett (LB) inducing method was firstly used to prepare single layer and multilayer conducting composite PEDOT-PSS film. The film-forming ability of ionization ODA and ODA-SA monolayer spread on PEDOT-PSS nanoparticles subphase and the behavior of ODA/PEDOT-PSS assembly particles on pure water were firstly investigated. The results indicate that nanoparaticles in suphase pack the ionization monolayer and stable complex Langmuir film was formed at air/water interface. It has been found that the best film-forming conditions for composite film were as follows: molar ration of ODA to SA was 2:1, suphase temperature was 23 centigrade, concentration of PEDOT-PSS in subphse was about 1×10-3 M, and compressing speed and deposition speed were 5 mm/min and 1 mm/min respectively. The SIMS and XRR investigation show that this film exhibits well ordered layer structure.

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郑华靖, 徐建华, 蒋亚东, 杨亚杰. 导电聚合物有序超薄膜材料特性的分析[J]. 光电工程, 2010, 37(7): 126. ZHENG Hua-jing, XU Jian-hua, JIANG Ya-dong, YANG Ya-jie. Analysis of Material Characteristic of Ordered Conducting Polymer Ultrathin Film[J]. Opto-Electronic Engineering, 2010, 37(7): 126.

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