Doping and de-doping of carbon nanotube transparent conducting films by dispersant and chemical treatment

被引：133

作者：

Geng, Hong-Zhang ^{[1
]}

Kim, Ki Kang ^{[1
]}

Song, Chulho ^{[1
]}

Xuyen, Nguyen Thi ^{[1
]}

Kim, Soo Min ^{[1
]}

Park, Kyung Ah ^{[1
]}

Lee, Dae Sik ^{[1
]}

An, Kay Hyeok ^{[1
]}

Lee, Young Sil ^{[2
]}

Chang, Youngkyu ^{[2
]}

Lee, Young Jun ^{[2
]}

Choi, Jae Young ^{[3
]}

Benayad, Anass ^{[3
]}

Lee, Young Hee ^{[1
]}

机构：

[1] Sungkyunkwan Univ, Sungkyunkwan Adv Inst Nanotechnol, Ctr Nanotubes & Nanostruct Composites, Suwon 440746, South Korea

[2] Samsung Cheil Ind Inc, Chem R&D Ctr, Res Inst Chem & Elect Mat, Uiwang 437711, South Korea

[3] SAIT, Analyt Engn Ctr, Display Device & Mat Lab, Suwon 440600, South Korea

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2008年 / 18卷 / 11期

关键词：

D O I：

10.1039/b717387c

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Single-walled carbon nanotubes (SWCNTs) dispersed with Nafion in a solvent mixture containing de-ionized water and 1-propanol (bisolvent) were sprayed on a poly(ethylene terephthalate) substrate to fabricate flexible transparent conducting films (TCFs). Different SWCNT-to-Nafion ratios were used to optimize the film performance of transparence and sheet resistance. The TCFs were then immersed in nitric acid. These steps resulted in p-type doping due to the presence of Nafion in the SWCNT network and de-doping (removal of doping effect) by the acid treatment. X-Ray photoelectron and Raman spectroscopy confirmed that the de-doping effect occurred with the partial removal of Nafion from the nanotube surface by the nitric acid treatment, which improved the film conductivity by a factor of similar to 4 with negligible change in transmittance.

引用

页码：1261 / 1266

页数：6

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