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

Research output: Contribution to journalArticlepeer-review

71 Citations (Scopus)


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
Issue number38
Publication statusPublished - Sep 27 2007

ASJC Scopus subject areas

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

Fingerprint Dive into the research topics of 'Replacement of transparent conductive oxides by single-wall carbon nanotubes in Cu(In,Ga)Se <sub>2</sub>-based solar cells'. Together they form a unique fingerprint.

Cite this