Side group of poly(3-alkylthiophene)s controlled dispersion of single-walled carbon nanotubes for transparent conducting film

Wei Chao Chen, Hsiang Ting Lien, Tzu Wei Cheng, Chaochin Su, Cheong-Wei Chong, Abhijit Ganguly, Kuei Hsien Chen, Li Chyong Chen

研究成果: Article

7 引文 斯高帕斯(Scopus)

摘要

Controlled dispersion of single-walled carbon nanotubes (SWCNTs) in common solvents is a challenging issue, especially for the rising need of low cost flexible transparent conducting films (TCFs). Utilizing conductive polymer as surfactant to facilitate SWCNTs solubility is the most successful pragmatic approach to such problem. Here, we show that dispersion of SWCNT with polymer significantly relies on the length of polymer side groups, which not only influences the diameter distribution of SWCNTs in solution, also eventually affects their effective TCF performance. Surfactants with longer side groups covering larger nanotube surface area could induce adequate steric effect to stabilize the wrapped SWCNTs against the nonspecific aggregation, as discerned by the optical and microscopic measurements, also evidenced from the resultant higher electrokinetic potential. This approach demonstrates a facile route to fabricate large-area SWCNTs-TCFs exhibiting high transmittance and high conductivity, with considerable uniformity over 10 cm × 10 cm.

原文English
頁(從 - 到)4616-4622
頁數7
期刊ACS Applied Materials and Interfaces
7
發行號8
DOIs
出版狀態Published - 2015 三月 4

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

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