Transparent, conductive, and flexible carbon nanotube films and their application in organic light-emitting diodes
Transparent, conductive, and flexible carbon nanotube films and their application in organic light-emitting diodes
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DOI：
10.1021/nl0608543
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发表时间：
2006-09-13
期刊：
影响因子：
10.8
通讯作者：
Zhou, Chongwu
中科院分区：
文献类型：
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作者：
Zhang, Daihua;Ryu, Koungmin;Zhou, Chongwu
我们对两种商用碳纳米管：HiPCO和电弧放电碳纳米管制备的透明导电薄膜进行了比较研究。这些薄膜已被进一步开发作为空穴注入电极的有机发光二极管（OLED）的刚性玻璃和柔性基板。我们的实验表明，基于电弧放电纳米管的薄膜在所有关键方面，包括表面粗糙度，薄层电阻和透明度，都优于基于HiPCO纳米管的薄膜。通过使用PEDOT钝化以获得更好的表面光滑度和使用SOCl 2掺杂以降低薄层电阻，已经实现了电弧放电纳米管膜的进一步改进。优化后的薄膜在87%的透明度下显示出类似于160 Ω/矩形的典型薄层电阻，并已成功地用于制造具有高稳定性和长寿命的OLED。
We have carried out comparative studies on transparent conductive thin films made with two kinds of commercial carbon nanotubes: HiPCO and arc-discharge nanotubes. These films have been further exploited as hole-injection electrodes for organic light-emitting diodes ( OLEDs) on both rigid glass and flexible substrates. Our experiments reveal that films based on arc-discharge nanotubes are overwhelmingly better than HiPCO-nanotube-based films in all of the critical aspects, including surface roughness, sheet resistance, and transparency. Further improvement in arc-discharge nanotube films has been achieved by using PEDOT passivation for better surface smoothness and using SOCl2 doping for lower sheet resistance. The optimized films show a typical sheet resistance of similar to 160 Omega/rectangle at 87% transparency and have been used successfully to make OLEDs with high stabilities and long lifetimes.