Etherington, Marc, Wang, Jianpu, Chow, Philip C. Y. and Greenham, Neil C. (2014) Recombination pathways in polymer:fullerene photovoltaics observed through spin polarization measurements. Applied Physics Letters, 104 (6). 063304. ISSN 0003-6951
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Abstract
We report magnetoconductance measurements on polymer:fullerene photovoltaic devices in the regime of high fields and low temperatures, where spin polarization of injected carriers plays an important role. The current either decreases or increases with magnetic field, depending on whether the interfacial charge-transfer state lies above or below the intramolecular triplet state in energy. Rapid transitions from triplet charge-transfer states to lower-lying triplet excitons constitute an important loss mechanism that is responsible for the negative magnetoconductance observed.
| Item Type: | Article |
|---|---|
| Subjects: | F100 Chemistry F200 Materials Science |
| Department: | Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering |
| Depositing User: | Ay Okpokam |
| Date Deposited: | 10 Jan 2020 11:09 |
| Last Modified: | 31 Jul 2021 20:07 |
| URI: | http://nrl.northumbria.ac.uk/id/eprint/41875 |
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