High-performance single-walled carbon nanotube transparent conducting film fabricated by using low feeding rate of ethanol solution

Er Xiong Ding, Qiang Zhang, Nan Wei, Abu Taher Khan, Esko I. Kauppinen*

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

12 Citations (Scopus)
205 Downloads (Pure)

Abstract

We report floating catalyst chemical vapour deposition synthesis of single-walled carbon nanotubes (SWCNTs) for high-performance transparent conducting films (TCFs) using low feeding rate of precursor solution. Herein, ethanol acts as carbon source, ferrocene and thiophene as catalyst precursor and growth promoter, respectively. By adopting a low feeding rate of 4 μl min-1, the fabricated TCFs present one of the lowest sheet resistances of ca 78Ωsq.-1. at 90% transmittance. Optical characterizations demonstrate that the mean diameter of high-quality SWCNTs is up to 2 nm. Additionally, electron microcopy observations provide evidence that the mean length of SWCNT bundles is as long as 28.4 μm while the mean bundle diameter is only 5.3 nm. Moreover, very few CNT loops can be found in the film. Remarkably, the fraction of individual SWCNTs reaches 24.6%. All those morphology data account for the superior optoelectronic performance of our SWCNT TCFs.

Original languageEnglish
Article number180392
Pages (from-to)1-8
JournalRoyal Society Open Science
Volume5
Issue number6
DOIs
Publication statusPublished - 18 Jun 2018
MoE publication typeA1 Journal article-refereed

Keywords

  • Ethanol
  • Floating catalyst chemical vapour deposition
  • Single-walled carbon nanotubes
  • Transparent conducting films

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