Abstract
Ambipolar charge carrier mobility and recombination in bulk-heterojunction solar cells based on the mixture of regioregular poly(3-hexylthiophene) and 1-(3-methoxycarbonyl)propyl-1-phenyl-[6,6]-methanofullerene (PCBM) has been studied using injection current transients. The experimental results demonstrate double injection with bimolecular recombination limiting the injection current. We found that charge carrier bimolecular recombination is significantly reduced compared to Langevin recombination. We have measured the temperature and electric field dependence of the reduced bimolecular recombination coefficient and the results suggest that the electron and hole pathways are different and the recombination is controlled by the probability of the carriers to meet at the polymer/PCBM interface.
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Dates
Type | When |
---|---|
Created | 19 years, 9 months ago (Nov. 21, 2005, 6:06 p.m.) |
Deposited | 2 years, 2 months ago (July 2, 2023, 1:20 p.m.) |
Indexed | 1 month ago (July 30, 2025, 6:45 a.m.) |
Issued | 19 years, 9 months ago (Nov. 22, 2005) |
Published | 19 years, 9 months ago (Nov. 22, 2005) |
Published Online | 19 years, 9 months ago (Nov. 22, 2005) |
Published Print | 19 years, 9 months ago (Nov. 28, 2005) |
@article{Ju_ka_2005, title={Double injection as a technique to study charge carrier transport and recombination in bulk-heterojunction solar cells}, volume={87}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.2137454}, DOI={10.1063/1.2137454}, number={22}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Juška, G. and Arlauskas, K. and Sliaužys, G. and Pivrikas, A. and Mozer, A. J. and Sariciftci, N. S. and Scharber, M. and Österbacka, R.}, year={2005}, month=nov }