Excitons diffusion and singlet-triplet occupation at high Bose-Einstein chemical potential
Metadatos
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comunitat-uji-handle2:10234/2507
comunitat-uji-handle3:10234/6973
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http://dx.doi.org/10.1016/j.cplett.2008.07.101 |
Metadatos
Título
Excitons diffusion and singlet-triplet occupation at high Bose-Einstein chemical potentialAutoría
Fecha de publicación
2008Editor
ElsevierISSN
92614Cita bibliográfica
Chemical Physics Letters, 462, p. 229-233Tipo de documento
info:eu-repo/semantics/articleVersión
info:eu-repo/semantics/publishedVersionResumen
The paper investigates the bosonic aspects of exciton statistics in non-equilibrium situations. A kinetic model is formulated treating the excitons in different states as chemical species, using a master equation ... [+]
The paper investigates the bosonic aspects of exciton statistics in non-equilibrium situations. A kinetic model is formulated treating the excitons in different states as chemical species, using a master equation consistent with Bose-Einstein statistics. The model reveals that in two-state model for singlet-triplet generation-recombination, the chemical potential of the lower state becomes pinned at high concentration. Analysis of exciton diffusion shows that the chemical diffusion coefficient is independent of the concentration, while the single particle (tracer) diffusion coefficient increases strongly due to the attractive statistical force. © 2008 Elsevier B.V. All rights reserved. [-]
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info:eu-repo/semantics/restrictedAccess
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