Nano Archive

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

Zhang, Daihua and Ryu, Koungmin and Liu, Xiaolei and Polikarpov, Evgueni and Ly, James and Tompson, Mark E. and Zhou, Chongwu (2006) Transparent, conductive, and flexible carbon nanotube films and their application in organic light-emitting diodes. NANO LETTERS, 6 (9). pp. 1880-1886.

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Official URL: http://pubs.acs.org/doi/abs/10.1021/nl0608543

Abstract

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.

Item Type:Article
Subjects:Physical Science > Nanophysics
Physical Science > Nanoelectronics
ID Code:2747
Deposited By:Lesley Tobin
Deposited On:20 Jan 2009 11:09
Last Modified:20 Jan 2009 11:09

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