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A Transparent, Flexible, Low-Temperature, and Solution- Processible Graphene Composite Electrode

机译：透明，柔性，低温且可溶液处理的石墨烯复合电极

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摘要

The synthesis and preparation of a new type of graphene composite material suitable for spin-coating into conductive, transparent, and flexible thin film electrodes in ambient conditions is reported here for the first time. Solution-processible graphene with diameter up to 50 μm is synthesized by surfactant-assisted exfoliation of graphite oxide and in situ chemical reduction in a large quantity. Spin-coating the mixing solution of surfactant-functionalized graphene and PEDOT:PSS yields the graphene composite electrode (GCE) without the need for high temperature annealing, chemical vapor deposition, or any additional transfer-printing process. The conductivity and transparency of GCE are at the same level as those of an indium tin oxide (ITO) electrode. Importantly, it exhibits high stability (both mechanical and electrical) in bending tests of at least 1000 cycles. The performance of organic light-emitting diodes based on a GCE anode is comparable, if not superior, to that of OLEDs made with an ITO anode.
机译：本文首次报道了适合在环境条件下旋涂成导电，透明和柔性薄膜电极的新型石墨烯复合材料的制备。通过表面活性剂辅助剥落氧化石墨并进行大量原位化学还原，可以合成直径最大为50μm的可溶液处理的石墨烯。将表面活性剂官能化的石墨烯和PEDOT：PSS的混合溶液旋涂即可得到石墨烯复合电极（GCE），而无需进行高温退火，化学气相沉积或任何其他转移印刷工艺。 GCE的电导率和透明度与铟锡氧化物（ITO）电极的电导率和透明度相同。重要的是，它在至少1000次循环的弯曲测试中表现出很高的稳定性（机械和电气方面）。基于GCE阳极的有机发光二极管的性能与使用ITO阳极制成的OLED的性能相当，甚至不相同。

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  • 来源
    《Advanced Functional Materials》 |2010年第17期|P.2893-2902|共10页
  • 作者

    Haixin Chang; Guangfeng Wang; An Yang; Xiaoming Tao; Xuqing Liu; Youde Shen; Zijian Zheng;

  • 作者单位

    Nanotechnology Center, Institute of Textiles and Clothing The Hong Kong Polytechnic University Hung Horn, Kowloon (Hong Kong SAR);

    rnNanotechnology Center, Institute of Textiles and Clothing The Hong Kong Polytechnic University Hung Horn, Kowloon (Hong Kong SAR);

    rnNanotechnology Center, Institute of Textiles and Clothing The Hong Kong Polytechnic University Hung Horn, Kowloon (Hong Kong SAR);

    rnNanotechnology Center, Institute of Textiles and Clothing The Hong Kong Polytechnic University Hung Horn, Kowloon (Hong Kong SAR);

    rnNanotechnology Center, Institute of Textiles and Clothing The Hong Kong Polytechnic University Hung Horn, Kowloon (Hong Kong SAR);

    rnNanotechnology Center, Institute of Textiles and Clothing The Hong Kong Polytechnic University Hung Horn, Kowloon (Hong Kong SAR);

    rnNanotechnology Center, Institute of Textiles and Clothing The Hong Kong Polytechnic University Hung Horn, Kowloon (Hong Kong SAR);

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