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Effect of acid treatment on carbon nanotube-based flexible transparent conducting films
来源:耿宏章教授个人网站 发布日期:2010-04-25
作者:Hong-Zhang Geng, Ki Kang Kim, Kang Pyo So, Young Sil Lee, Youngkyu Chang, Young Hee Lee
关键字:Carbon nanotubes, Transparent conducting films
论文来源:期刊
具体来源:Journal of the American Chemical Society. 2007, 129, 7758-7759
发表时间:2007年

The single-walled carbon nanotubes (SWCNTs) were dispersed in deionized water with sodium dodecyl sulfate (SDS) as dispersant. Flexible transparent conducting films (TCFs) were fabricated on poly(ethylene terephthalate) substrate using SWCNT solution by a spray methods. The quality of SWCNTs, the degree of dispersion, film morphology, and the performance of TCFs were characterized and analyzed. The SWCNT films were further immersed in acidic solution to modify the film performance. This process involved a chemical doping and removal of the remaining dispersant on the CNT surface. The sheet resistance of film was reduced and the film conductivity was enhanced by a factor of 4 with a negligible change in the transmittance in the visible range. This enhancement was attributed to the removal of remaining SDS and the subsequent densified film formation to reduce the cross-junction resistance between SWCNT networks and enhanced metallicity of SWCNTs.

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