- Abstract:
-
The cross-over from coherent to incoherent exciton transport in disordered polymer films is studied by computationally solving a modified form of the Redfield equation for the exciton density matrix. This theory models quantum mechanical (ballistic) and incoherent (diffusive) transport as limiting cases. It also reproduces Forster transport for certain parameter regimes. Using model parameters appropriate to polymer thin films it is shown that short-time quantum mechanical coherence increases...
Expand abstract - Publication status:
- Published
- Publisher copy:
- 10.1103/PhysRevB.74.075207
-
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- Journal:
- PHYSICAL REVIEW B
- Volume:
- 74
- Issue:
- 7
- Publication date:
- 2006-07-24
- DOI:
- EISSN:
-
1550-235X
- ISSN:
-
1098-0121
- URN:
-
uuid:d6a4d275-bb69-4866-9c2e-3fabdfe70f08
- Source identifiers:
-
40085
- Local pid:
- pubs:40085
- Language:
- English
- Keywords:
- Copyright date:
- 2006
- Notes:
-
Accepted for publication in Phys. Rev. B. (July 2006). 19 pages and 8
figures
Journal article
Role of Quantum Coherence and Energetic Disorder on Exciton Transport in Polymer Films
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