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Communication

Electronically Monodisperse Single-Walled Carbon Nanotube Thin Films as Transparent Conducting Anodes in Organic Photovoltaic Devices

  1. Timothy P. Tyler†,
  2. Ryan E. Brock†,
  3. Hunter J. Karmel,
  4. Tobin J. Marks,
  5. Mark C. Hersam*

Article first published online: 16 SEP 2011

DOI: 10.1002/aenm.201100274

Issue

Advanced Energy Materials

Advanced Energy Materials

Volume 1, Issue 5, pages 785–791, October, 2011

Additional Information

How to Cite

Tyler, T. P., Brock, R. E., Karmel, H. J., Marks, T. J. and Hersam, M. C. (2011), Electronically Monodisperse Single-Walled Carbon Nanotube Thin Films as Transparent Conducting Anodes in Organic Photovoltaic Devices. Adv. Energy Mater., 1: 785–791. doi: 10.1002/aenm.201100274

Author Information

  1. Department of Materials Science & Engineering, Department of Chemistry, Department of Medicine and the Argonne-Northwestern Solar Energy Research (ANSER) Center, Northwestern University, Evanston, Illinois 60208-3108, USA

  1. †

    These authors contributed equally to this work.

*Department of Materials Science & Engineering, Department of Chemistry, Department of Medicine and the Argonne-Northwestern Solar Energy Research (ANSER) Center, Northwestern University, Evanston, Illinois 60208-3108, USA.

Publication History

  1. Issue published online: 16 SEP 2011
  2. Article first published online: 16 SEP 2011
  3. Manuscript Received: 24 MAY 2011

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Keywords:

  • organic photovoltaics;
  • carbon nanotubes;
  • density gradient ultracentrifugation;
  • separation;
  • X-ray photoelectron spectroscopy
Thumbnail image of graphical abstract

Single-walled carbon nanotubes (SWNTs) sorted by electronic type are employed as organic photovoltaic device anodes. Metal-enriched SWNT films yield device efficiencies that are fifty times greater than their semiconducting counterparts. Through sheet resistance, UV-vis-NIR optical absorbance, and X-ray photoelectron spectroscopy measurements, the OPV charge blocking layer PEDOT:PSS is found to reverse the original chemical doping of the SWNT films. The relative insensitivity of metallic SWNTs to chemical doping thus explains the improved performance of metal-enriched SWNT films as OPV anodes.

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