Low-Temperature solution processing of graphene-carbon nanotube hybrid materials for high-performance transparent conductors

Chun-Chih Tung, Li Min Chen, Matthew J. Allen, Jonathan K. Wassei, Kurt Nelson, Richard B. Kaner, Yang Yang

Research output: Contribution to journalArticlepeer-review

861 Scopus citations

Abstract

We report the formation of a nanocomposite comprised of chemically converted graphene and carbon nanotubes. Our solution-based method does not require surfactants, thus preserving the intrinsic electronic and mechanical properties of both components, delivering 240 ω/ at 86% transmittance. This low-temperature process is completely compatible with flexible substrates and does not require a sophisticated transfer process. We believe that this technology is inexpensive, is massively scalable, and does not suffer from several shortcomings of indium tin oxide. A proof-of-concept application in a polymer solar cell with power conversion efficiency of 0.85% is demonstrated. Preliminary experiments in chemical doping are presented and show that optimization of this material is not limited to improvements in layer morphology.

Original languageEnglish (US)
Pages (from-to)1949-1955
Number of pages7
JournalNano Letters
Volume9
Issue number5
DOIs
StatePublished - May 13 2009

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

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