Baker, W. J. and Keevers, T. L. and Lupton, J. M. and McCamey, D. R. and Boehme, C. (2012) Slow Hopping and Spin Dephasing of Coulombically Bound Polaron Pairs in an Organic Semiconductor at Room Temperature. PHYSICAL REVIEW LETTERS, 108 (26): 267601. ISSN 0031-9007,
Full text not available from this repository. (Request a copy)Abstract
Polaron pairs are intermediate electronic states that are integral to the optoelectronic conversion process in organic semiconductors. Here, we report on electrically detected spin echoes arising from direct quantum control of polaron pair spins in an organic light-emitting diode at room temperature. This approach reveals phase coherence on a microsecond time scale, and offers a direct way to probe charge recombination and dissociation processes in organic devices, revealing temperature-independent intermolecular carrier hopping on slow time scales. In addition, the long spin phase coherence time at room temperature is of potential interest for developing quantum-enhanced sensors and information processing systems which operate at room temperature.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | DETECTED MAGNETIC-RESONANCE; LIGHT-EMITTING-DIODES; CONJUGATED POLYMER; FILMS; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Chair Professor Lupton > Group John Lupton |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 12 May 2020 05:31 |
| Last Modified: | 12 May 2020 05:31 |
| URI: | https://pred.uni-regensburg.de/id/eprint/18565 |
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