Transparent, conductive, and flexible carbon nanotube films and their application in organic light-emitting diodes

被引：914
作者：
Zhang, Daihua
Ryu, Koungmin
Liu, Xiaolei
Polikarpov, Evgueni
Ly, James
Tompson, Mark E.
Zhou, Chongwu [1 ]
机构：
[1] Univ So Calif, Dept EE Electrophys, Los Angeles, CA 90089 USA
[2] Univ So Calif, Dept Chem, Los Angeles, CA 90089 USA
来源：
NANO LETTERS | 2006年 / 6卷 / 09期
关键词：
D O I：
10.1021/nl0608543
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
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.
引用
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页码：1880 / 1886
页数：7
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