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.
Original language | English |
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Pages (from-to) | 785-791 |
Number of pages | 7 |
Journal | Advanced Energy Materials |
Volume | 1 |
Issue number | 5 |
DOIs | |
Publication status | Published - Oct 1 2011 |
ASJC Scopus subject areas
- Renewable Energy, Sustainability and the Environment
- Materials Science(all)