Ward, A. J., Ruseckas, A., Kareem, M. M., Ebenhoch, B., Serrano, L. A., Al-Eid, M., Fitzpatrick, B., Rotello, V. M., Cooke, G. and Samuel, I. D.W. (2015) The impact of driving force on electron transfer rates in photovoltaic donor-acceptor blends. Advanced Materials, 27(15), pp. 2496-2500. (doi: 10.1002/adma.201405623) (PMID:25759321)
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Abstract
The effect of acceptor energy level on electron transfer rate in blends of the polymer solar-cell material poly[[4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5-b′]dithiophene-2,6-diyl][3-fluoro-2-[(2-ethylhexyl)carbonyl]thieno[3,4-b]thiophenediyl]] (PTB7) is studied using time-resolved fluorescence. Fast electron transfer in less than 2 ps is observed for a driving force between 0.2 and 0.6 eV and the electron transfer is slower outside this range. This dependence is described by Marcus theory with a reorganization energy of ≈0.4 eV.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Cooke, Professor Graeme and Fitzpatrick, Dr Brian |
| Authors: | Ward, A. J., Ruseckas, A., Kareem, M. M., Ebenhoch, B., Serrano, L. A., Al-Eid, M., Fitzpatrick, B., Rotello, V. M., Cooke, G., and Samuel, I. D.W. |
| College/School: | College of Science and Engineering > School of Chemistry |
| Journal Name: | Advanced Materials |
| Publisher: | Wiley |
| ISSN: | 0935-9648 |
| ISSN (Online): | 1521-4095 |
| Published Online: | 10 March 2015 |
| Copyright Holders: | Copyright © 2015 The Authors |
| First Published: | First published in Advanced Materials 27(15): 2496-2500 |
| Publisher Policy: | Reproduced under a Creative Commons License |
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