RETRACTED: Vapor Phase Polymerization Deposition of Conducting Polymer/Graphene Nanocomposites as High Performance Electrode Materials (Retracted article. See vol. 8, pg. 19185, 2016)

被引:39
作者
Yang, Yajie [1 ]
Li, Shibin [1 ]
Zhang, Luning [1 ]
Xu, Jianhua [1 ]
Yang, Wenyao [1 ]
Jiang, Yadong [1 ]
机构
[1] Univ Elect Sci & Technol China, State Key Lab Elect Thin Films & Integrated Devic, Sch Optoelect Informat, Chengdu 610054, Peoples R China
基金
美国国家科学基金会;
关键词
vapor phase polymerization; conducting polymers; graphene; nanocomposites; solid tantalum electrolyte capacitor; POLYMERS; GROWTH; FILMS;
D O I
10.1021/am4003815
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
In this paper, we report chemical vapor phase polymerization (VPP) deposition of novel poly(3,4-ethylenedioxythiophene) (PEDOT)/graphene nanocomposites as solid tantalum electrolyte capacitor cathode films. The PEDOT/graphene films were successfully prepared on porous tantalum pentoxide surface as cathode films through the VPP procedure. The results indicated that the high conductivity nature of PEDOT/graphene leads to the decrease of cathode films resistance and contact resistance between PEDOT/graphene and carbon paste. This nanocomposite cathode film based capacitor showed ultralow equivalent series resistance (ESR) ca. 12 m Omega and exhibited better capacitance frequency performance than the PEDOT based capacitor. The leakage current investigation revealed that the device encapsulation process does not influence capacitor leakage current, indicating the excellent mechanical strength of PEDOT-graphene films. The graphene showed a distinct protection effect on the dielectric layer from possible mechanical damage. This high conductivity and mechanical strength graphene based conducting polymer nanocomposites indicated a promising application future for organic electrode materials.
引用
收藏
页码:4350 / 4355
页数:6
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