3 September 2008 Implications of a reduced polaron recombination on polymer: fullerene solar cells
Author Affiliations +
Studying polymer:fullerene solar cells, we find that the bimolecular recombination is much lower than the anticipated Langevin recombination. In our study, we investigate the performance of annealed P3HT:PCBM bulk heterojunction solar cells by current-voltage characterisation, and complement these measurements with photo-CELIV experiments. We find that at room temperature the bimolecular recombination rate is reduced by a factor of about 50 as compared to the Langevin rate. We discuss the implications of this reduction on the solar cell performance, using a one-dimensional numeric simulator to analyse the experimental results, and compare the reduced recombination rates with the Langevin rates.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Carsten Deibel, Carsten Deibel, Alexander Wagenpfahl, Alexander Wagenpfahl, Andreas Baumann, Andreas Baumann, Vladimir Dyakonov, Vladimir Dyakonov, "Implications of a reduced polaron recombination on polymer: fullerene solar cells", Proc. SPIE 7052, Organic Photovoltaics IX, 70520N (3 September 2008); doi: 10.1117/12.794751; https://doi.org/10.1117/12.794751

Back to Top