Flexible, Highly Durable, and Thermally Stable SWCNT/Polyimide Transparent Electrodes
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- 作者：Seong-Ku Kim ; Tao Liu ; Xiaogong Wang
- 刊名：ACS Applied Materials & Interfaces
- 出版年：2015
- 出版时间：September 23, 2015
- 年：2015
- 卷：7
- 期：37
- 页码：20865-20874
- 全文大小：555K
- ISSN：1944-8252
文摘
Flexible, transparent, and electrically conducting electrode materials are highly desired for flexible electronic applications. With a highly transparent polyimide (PI) as a substrate, a comprehensive and comparative study was performed to investigate four different fabrication schemes in producing transparent and electrically conducting SWCNT/PI electrodes. A very promising method that involves an in situ imidization process and nitric acid doping treatment was identified, which led to the fabrication of highly durable and thermally stable SWCNT/PI electrodes. The best performed electrode has a transmission of 77.6% at 550 nm and a sheet resistance (Rs) of 1169 卤 172 惟/鈻? which appeared no changes after repeating tests of bending, folding-unfolding, adhesive-tape-peeling-off, and wet tissue-paper scratching/wiping. The excellent thermal stability of such fabricated SWCNT/PI electrode is manifested by the very high glass transition temperature of 290.1 掳C and low coefficient of thermal expansion (CTE) of 28.5 ppm 掳C鈥? in the temperature range from 75 to 200 掳C. The new method expects to be able to pave the way in facile production of high-performance flexible, transparent, and conducting electrodes.