暗场显微镜下原位监测GNR/PEDOT在ITO界面上组装成膜过程
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摘要
研究采用电化学聚合法,在中性水溶液中以3,4-乙烯二氧噻吩(EDOT)为反应液,在金纳米棒(GNR)修饰的ITO上聚合成PEDOT导电薄膜,并对该体系的稳定性进行了研究。利用暗场光学显微镜原位实时观察了聚合过程中纳米粒子掺杂的导电聚合物的微结构形貌不断进化,同时原位研究了该体系的光电性质。随着反应时间的增加,掺杂了纳米粒子的PEDOT薄膜的微结构形貌不断进化,从分散的颗粒状态向连续的树枝状态转变,最后成有些微高低起伏的薄膜状。
In this paper,the film of conducting polymer PEDOT doping by gold nanorods was fabricated on ITO by electrochemical polymerization method in neutral aqueous solution,and the stability of the system was studied.The changes of microstructure of GNR/PEDOT film in the progress of preparation and the photovoltaic property stimulated by different voltages were observed in situ under dark field microscope.It was experimentally found that the microstructure of GNR/PEDOT film evolved from dispersion particle state to the continuous dendritic structure,finally turned into thin layers with a slight undulations.
In this paper,the film of conducting polymer PEDOT doping by gold nanorods was fabricated on ITO by electrochemical polymerization method in neutral aqueous solution,and the stability of the system was studied.The changes of microstructure of GNR/PEDOT film in the progress of preparation and the photovoltaic property stimulated by different voltages were observed in situ under dark field microscope.It was experimentally found that the microstructure of GNR/PEDOT film evolved from dispersion particle state to the continuous dendritic structure,finally turned into thin layers with a slight undulations.
引文
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[2]Wu J L,Chen F C,Hsiao Y S,et al.ACS Nano,2011,5(2):959
[3]Wang D H,Kimdo Y,Choi K W,et al.Angew Chem Int Ed,2011,50(24):5519
[4]Yang J,You J,Chen C C,et al.ACS Nano,2011,5(8):6210
[5]Ji H L,Park J H,Kim J S,et al.Org Electron,2009,10(3):416