Filtration-wet transferred transparent conducting films of mm long carbon nanotubes grown using water-assisted chemical vapor deposition

Shashikant P. Patole, Dong Wook Shin, Bunshi Fugetsu, Ji Beom Yoo

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

Transparent conducting films (TCF) made up from carbon nanotubes (CNTs) have a tremendous potential in replacing the indium tin oxide films. Compare to single wall CNTs multiwall CNTs are more metallic and are more suitable candidate for the TCF. In this letter we report the use of selectively grown mm-scale, few-wall, vertically aligned CNTs for the fabrication of TCF. Waterassisted chemical vapor deposition was used to grow the mm-scale CNTs within short growth time. A special post-growth water-vapor treatment allowed us to remove the catalyst-free CNT forest very easily from the substrate and use it for the further process. A filtration-wet transfer process was used to form the TCF. The TCF shows sheet resistance of 228 Ω/sq. at 72% transparency (at 550 nm). The ratio of optical conductivity to dc conductivity was observed in between 0.21 to 0.25 for below 80% transmission.

Original languageBritish English
Pages (from-to)7413-7417
Number of pages5
JournalJournal of Nanoscience and Nanotechnology
Volume13
Issue number11
DOIs
StatePublished - Nov 2013

Keywords

  • Carbon nanotubes
  • Chemical vapor deposition
  • Electron transport
  • Percolation
  • Transparent conducting films

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