Journal article
Efficiency Enhancement in Bulk Heterojunction Polymer Photovoltaic Cells Using ZrTiO4/Bi2O3 Metal-Oxide Nanocomposites
Electroceramics, Fuel Cells and Solid State Chemistry Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark1
Fuel Cells and Solid State Chemistry Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark2
Risø National Laboratory for Sustainable Energy, Technical University of Denmark3
Gwangju Institute of Science and Technology4
We report the effect of metal-oxide nanocomposites on the performance of bulk heterojunction polymer solar cells. A photoactive layer composed of poly(3-hexylthiophene) (P3HT) and [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) was blended with a newly developed ZrTiO4/Bi2O3 (BITZ) metal-oxide nanocomposite.
We observed a short-circuit current density of 9.90 mA/cm2, an open-circuit voltage of 0.64 V, and a fill factor of 0.60. The overall power conversion efficiency increased from 3.20 to 3.72% with an external quantum efficiency improvement of 66%. The enhancement in performance was attributed to the improved absorption and fast transport of charge carriers by the suppressed recombination of photo-generated electrons and holes.
Language: | English |
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Year: | 2010 |
Pages: | 0423011-0423014 |
ISSN: | 13474065 and 00214922 |
Types: | Journal article |
DOI: | 10.1143/JJAP.49.042301 |