Fast and efficient purification for highly conductive transparent carbon nanotube films

Ju Yeon Woo, Duckjong Kim, Joondong Kim, Jongkyoo Park, Chang-Soo Han

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

A combination of thermal oxidation and thermal recovery was used to obtain transparent single-walled carbon nanotube (SWCNT) films with low sheet resistance. The process resulted in the effective removal of impurities and healing of defects in the SWCNTs, thus markedly increasing their conductivity. SWCNT samples before and after the process were analyzed by Raman spectroscopy, scanning and transmission electron microscopy, thermogravimetric analysis, contact angle measurement, and transparent conductive film fabrication. Following purification, the sheet resistance decreased from 5380 to 187 Ω/sq at 80% optical transmittance and at a wavelength of 550 nm. The process requires a short time of about 3 h and produces 30% yield of the asproduced sample.

Original languageEnglish
Pages (from-to)19169-19174
Number of pages6
JournalJournal of Physical Chemistry C
Volume114
Issue number45
DOIs
Publication statusPublished - 2010 Nov 18
Externally publishedYes

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ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Electronic, Optical and Magnetic Materials
  • Surfaces, Coatings and Films
  • Energy(all)

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