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Solvent processed conductive polymer with single-walled carbon nanotube composites

机译:溶剂处理的导电聚合物与单壁碳纳米管复合材料

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摘要

Single-walled carbon nanotube (SWNT) and conductive polymer composite were studied as a potential electrode candidate for plastic electronic devices such as organic light-emitting diodes (OLEDs) and solar cells. A novel conductive polymer, poly(2,7-9,9(di(oxy-2,5,8-trioxadecane)) fluorene) (PFO), was synthesized and characterized as a surfactant to disperse SWNTs in solutions. The ethylene oxide (EO) side chain of rigid PFO backbone acts as a template to wrap around SWNTs in solution. Up to 0.02% (by weight) of SWNTs are stabilized and well separated in the solution phase. The carbon nanotube can be dispersed in solutions for over 4 mo. Transmission electron microscopy (TEM) images of solvent cast film suggest highly uniformed SWNT distribution incorporated in the conductive polymer matrix. Transmittance characterization shows the film is as transparent as indium tin oxide conducting glass. Conductivity measurement shows SWNTs can effectively inject charges into the PFO polymer matrix at low voltage. The current versus voltage profile of the SWNT/PFO composite film (2% SWNT in PFO by weight) shows that the majority current conducting is carried by SWNTs.
机译:研究了单壁碳纳米管(SWNT)和导电聚合物复合材料作为塑料电子设备(例如有机发光二极管(OLED)和太阳能电池)的潜在电极候选物。合成了一种新型的导电聚合物,聚(2,7-9,9(二(氧基-2,5,8-三氧杂环丁烷))芴)(PFO),并表征为表面活性剂,可将SWNTs分散在溶液中。刚性PFO主链的环氧乙烷(EO)侧链充当模板来包裹溶液中的SWNT。在溶液相中,高达0.02%(按重量计)的SWNT被稳定并充分分离。碳纳米管可以分散在溶液中超过4 mo。溶剂流延膜的透射电子显微镜(TEM)图像表明,导电聚合物基体中掺入的SWNT分布非常均匀。透射率表征表明该膜与铟锡氧化物导电玻璃一样透明。电导率测量表明,SWNT可以在低压下有效地将电荷注入PFO聚合物基体中。 SWNT / PFO复合膜的电流对电压曲线(按重量计,PFO中的SWNT含量为2%)表明,大部分电流传导是由SWNT承载的。

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  • 来源
    《Journal of Materials Research》 |2015年第22期|3403-3411|共9页
  • 作者单位

    Energy Technologies Area, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA;

    Energy Technologies Area, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA;

    Energy Technologies Area, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA, School of Chemical Engineering & Environment, Beijing Institute of Technology, Beijing 100081, China;

    School of Optoelectronics, Beijing Institute of Technology, Beijing 100081, China;

    Department of Materials Science and Engineering, University of California, Berkeley, Berkeley, California 94720, USA, National Center for Electron Microscopy, Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA;

    Department of Materials Science and Engineering, University of California, Berkeley, Berkeley, California 94720, USA, National Center for Electron Microscopy, Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA;

    Energy Technologies Area, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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  • 正文语种 eng
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