Determination of recombination mechanisms in organic solar cells
Studies of the recombination mechanisms in bulk heterojunction solar cells are reported. DC and transient photoconductivity are used to measure the carrier mobility and recombination times and also to show that geminate recombination is not significant in P3HT/PCBM and PCDTBT/PCBM cells. Light intensity measurements indicate that recombination is mostly monomolecular up to 1-sun light intensity. We conclude that the recombination at interface states is the dominant recombination mechanism .
- download PDF (738K)
Street, R. A.; Schoendorf, M.; Cowan, S. Determination of recombination mechanisms in organic solar cells. IEEE 35th Photovoltaic Specialists Conference; 2010 June 20-25; Honolulu, HI. Piscataway NJ: IEEE; 2010; 79-84.
Copyright © IEEE, 2010. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.