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

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)4616-4622
Number of pages7
JournalACS Applied Materials and Interfaces
Volume7
Issue number8
DOIs
Publication statusPublished - 2015 Mar 4

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

Fingerprint Dive into the research topics of 'Side group of poly(3-alkylthiophene)s controlled dispersion of single-walled carbon nanotubes for transparent conducting film'. Together they form a unique fingerprint.

  • Cite this