Fabrication of highly conductive and transparent thin films from single-walled carbon nanotubes using a new non-ionic surfactant via spin coating

Jea Woong Jo, Jae Woong Jung, Jea Uk Lee, Won Ho Jo

Research output: Contribution to journalArticlepeer-review

215 Scopus citations

Abstract

Oligothiophene-terminated poly(ethylene glycol) was synthesized and used as a non-ionic and amphiphilic surfactant for fabricating high-quality single-walled carbon nanotube (SWCNT) films by a simple spin coating method. The absence of charge repulsion between SWCNT/surfactant complexes successfully leads to formation of a dense network of SWCNTs on the substrate through a single deposition of spin coating. When the SWCNT film was treated with nitric acid and thionyl chloride after washed with dichloromethane and water, a high-performance SWCNT film with the sheet resistance of 59 ohm/sq and the transparency of 71% at 550 nm was successfully obtained. Since the SWCNT film exhibits a high value of ∑dc/∑ac (∼17) and excellent dimensional stability after releasing from the substrate, the film can be used as a transparent electrode in flexible optoelectronic devices.

Original languageEnglish
Pages (from-to)5382-5388
Number of pages7
JournalACS Nano
Volume4
Issue number9
DOIs
StatePublished - 28 Sep 2010

Keywords

  • electrode
  • free-standing film
  • single-walled carbon nanotube
  • spin coating
  • transparent film

Fingerprint

Dive into the research topics of 'Fabrication of highly conductive and transparent thin films from single-walled carbon nanotubes using a new non-ionic surfactant via spin coating'. Together they form a unique fingerprint.

Cite this