Replacement of transparent conductive oxides by single-wall carbon nanotubes in Cu(In,Ga)Se 2-based solar cells

Miguel A. Contreras, Teresa Barnes, Jao Van De Lagemaat, Garry Rumbles, Timothy J. Coutts, Chris Weeks, Paul Glatkowski, Igor Levitsky, Jorma Peltola, David A. Britz

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Abstract

Thin films of single-wall carbon nanotubes were used as the transparent top electrical contact in Cu(In,Ga)Se 2-based solar cells. Specifically, we demonstrate that thin layers of carbon nanotubes in combination with insulating polymer layers can effectively replace the metal oxide layers typically used in polycrystalline thin-film solar cells. Replacing the standard n-type ZnO layer with a thin film of carbon nanotubes yielded energy conversion efficiencies up to 13%. The optical and electrical transport properties of the single-wall carbon nanotubes suggest that suitable applications for these materials include multiple-junction solar cells, thermophotovoltaics, and other applications benefiting from a p-type transparent conductor with high near-infrared transmission.

Original languageEnglish
Pages (from-to)14045-14048
Number of pages4
JournalJournal of Physical Chemistry C
Volume111
Issue number38
DOIs
Publication statusPublished - Sep 27 2007

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ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Energy(all)
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films

Cite this

Contreras, M. A., Barnes, T., Van De Lagemaat, J., Rumbles, G., Coutts, T. J., Weeks, C., Glatkowski, P., Levitsky, I., Peltola, J., & Britz, D. A. (2007). Replacement of transparent conductive oxides by single-wall carbon nanotubes in Cu(In,Ga)Se 2-based solar cells. Journal of Physical Chemistry C, 111(38), 14045-14048. https://doi.org/10.1021/jp075507b