Integration of carbon nanotubes as hole transport electrode in polymer/fullerene bulk heterojunction solar cells |
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Authors: | E Kymakis E Stratakis E Koudoumas |
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Affiliation: | a Electrical Engineering Department and Center of Materials Technology & Laser, Technological Educational Institute (TEI) of Crete, P.B. 1939, Heraklion, GR-710 04, Crete, Greece b Institute of Electronic Structure and Laser (IESL), Foundation for Research and Technology-Hellas (FORTH), Heraklion, GR-711 10, Crete, Greece |
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Abstract: | Transparent and conductive single-walled carbon nanotube (SWNT) thin films were fabricated onto glass substrates and their optical and electrical properties were evaluated. Particular attention was given to the dependence of the conductivity and optical transparency on the thickness of the films. Furthermore, the SWNT thin films were integrated in organic photovoltaic devices as the hole transport electrode. The best photovoltaic performance was observed for the devices utilizing 80 nm SWNT films with a sheet resistance of 362 Ω/sq, and a transmittance of 64% at 520 nm. The experiments reveal that SWNTs films can be used as transparent electrodes for efficient, flexible organic photovoltaic devices. |
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Keywords: | Nanotube Polymer Photovoltaic Electrode |
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