| 引用本文: | 李蛟,刘俊成,高从堦.溴掺杂对PEDOT/PSS薄膜性能的影响及机理研究[J].材料科学与工艺,2011,19(4):89-94.DOI:10.11951/j.issn.1005-0299.20110419. |
| LI Jiao,LIU Jun-cheng,GAO Cong-.Effect of bromine doping on the properties of PEDOT/PSS thin films and their mechanism[J].Materials Science and Technology,2011,19(4):89-94.DOI:10.11951/j.issn.1005-0299.20110419. |
|
| 摘要: |
| 为改善聚乙撑二氧噻吩∶聚(对苯乙烯磺酸)根阴离子(PEDOT/PSS)薄膜的光学及电学性能,采用共混-旋涂法在石英玻片上制备出溴掺杂的PEDOT/PSS透明导电膜,并就其掺杂导电机理进行了探讨.结果表明:经微量溴掺杂后的PEDOT/PSS薄膜,其透光性能与导电性能均得到提高;质量分数6%溴掺杂条件下,薄膜透光率为95.11%,电导率为77 S/cm,较未掺杂薄膜分别提高了2.5%和295%;经霍尔效应分析仪、傅立叶变换拉曼光谱、原子力显微镜分析可知,掺杂前后薄膜电学性能变化主要源于HBrO与Br2对PEDOT主链的氧化效应. |
| 关键词: PEDOT/PSS薄膜 溴 掺杂 导电 机理 |
| DOI：10.11951/j.issn.1005-0299.20110419 |
| 分类号:TB43 |
| 基金项目:教育部新世纪优秀人才支持计划资助项目(NCET-04-0648);山东理工大学博士基金资助项目(4041410010) |
|
| Effect of bromine doping on the properties of PEDOT/PSS thin films and their mechanism |
|
LI Jiao1,2, LIU Jun-cheng1, GAO Cong-2,3
|
|
1.School of Materials Science and Engineering,Shandong University of Technology,Zibo 255049,China;2.College of Chemistry and Chemical Engineering,Ocean University of China,Qingdao 266100,China;3.Development Centre of Water Treatment Technology,SOA,Hangzhou 310012,China
|
| Abstract: |
| To improve the optical and electrical properties of poly(3,4-ethylenedioxythiophene)/poly(4styrenesulfonate)(PEDOT/PSS)film,the PEDOT/PSS doped with bromine transparent conducting thin films were fabricated on quartz substrates by blending-spin coating method.The mechanism of the conductivity enhancement in the composite film was discussed.Compared with a pristine film(i.e.,without bromine),the bromine-doped PEDOT/PSS film shows an improved optical transmission and conductivity.For optimized bromine concentration(6wt%),the optical transmission and conductivity increase to 95.11%and 77S/cm respectively,which are more about 2.5%and 295%than those of films without bromine doping.The analysis by hall effect measurement system,fourier transform raman spectroscopy and atomic force microscopy shows that the mechanism of conductivity enhancement in PEDOT/PSS film doped with bromine is affected by the oxidative characteristics of hydrobromic acid and bromine oxidation on PEDOT chains. |
| Key words: PEDOT/PSS film bromine dopping conductivity mechanism |
