Prolonging charge separation in P3HT-SWNT composites using highly enriched semiconducting nanotubes

Josh M. Holt, Andrew J. Ferguson, Nikos Kopidakis, Brian A. Larsen, Justin Bult, Gary Rumbles, Jeffrey L. Blackburn

Research output: Contribution to journalArticle

92 Citations (Scopus)

Abstract

Single-walled carbon nanotubes (SWNTs) have potential as electron acceptors in organic photovoltaics (OPVs), but the currently low-power conversion efficiencies of devices remain largely unexplained. We demonstrate effective redispersion of isolated, highly enriched semiconducting and metallic SWNTs into poly(3-hexylthiophene) (P3HT). We use these enriched blends to provide the first experimental evidence of the negative impact of metallic nanotubes. Time-resolved microwave conductivity reveals that the long-lived carrier population can be significantly increased by incorporating highly enriched semiconducting SWNTs into semiconducting polymer composites.

Original languageEnglish
Pages (from-to)4627-4633
Number of pages7
JournalNano Letters
Volume10
Issue number11
DOIs
Publication statusPublished - Nov 10 2010

Fingerprint

Single-walled carbon nanotubes (SWCN)
polarization (charge separation)
Nanotubes
nanotubes
carbon nanotubes
composite materials
Composite materials
Semiconducting polymers
Conversion efficiency
Microwaves
microwaves
conductivity
Electrons
polymers
poly(3-hexylthiophene)
electrons

Keywords

  • charge generation
  • charge recombination
  • organic photovoltaic
  • P3HT
  • polythiophene
  • Single-walled carbon nanotubes
  • time-resolved microwave conductivity

ASJC Scopus subject areas

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

Cite this

Holt, J. M., Ferguson, A. J., Kopidakis, N., Larsen, B. A., Bult, J., Rumbles, G., & Blackburn, J. L. (2010). Prolonging charge separation in P3HT-SWNT composites using highly enriched semiconducting nanotubes. Nano Letters, 10(11), 4627-4633. https://doi.org/10.1021/nl102753z

Prolonging charge separation in P3HT-SWNT composites using highly enriched semiconducting nanotubes. / Holt, Josh M.; Ferguson, Andrew J.; Kopidakis, Nikos; Larsen, Brian A.; Bult, Justin; Rumbles, Gary; Blackburn, Jeffrey L.

In: Nano Letters, Vol. 10, No. 11, 10.11.2010, p. 4627-4633.

Research output: Contribution to journalArticle

Holt, JM, Ferguson, AJ, Kopidakis, N, Larsen, BA, Bult, J, Rumbles, G & Blackburn, JL 2010, 'Prolonging charge separation in P3HT-SWNT composites using highly enriched semiconducting nanotubes', Nano Letters, vol. 10, no. 11, pp. 4627-4633. https://doi.org/10.1021/nl102753z
Holt, Josh M. ; Ferguson, Andrew J. ; Kopidakis, Nikos ; Larsen, Brian A. ; Bult, Justin ; Rumbles, Gary ; Blackburn, Jeffrey L. / Prolonging charge separation in P3HT-SWNT composites using highly enriched semiconducting nanotubes. In: Nano Letters. 2010 ; Vol. 10, No. 11. pp. 4627-4633.
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