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Digitale Medien

The effect of lattice vibrations on trap-limited exciton lifetimes (1969)

Elliott, Richard A. ; Lakatos, Katja ; Knox, Robert S.

Springer

Journal of statistical physics 1 (1969), S. 253-269

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Details

ISSN: 1572-9613

Schlagwort(e): trap-limited exciton lifetimes ; asymmetrical random walks ; lattice vibrations ; displacement correlation functions ; phonon-assisted exciton lifetime reduction

Quelle: Springer Online Journal Archives 1860-2000

Thema: Physik

Notizen: Abstract The problem of exciton migration and trapping on a linear polymer is treated as a random walk on a one-dimensional lattice. The average number of steps required for a walker to be trapped is calculated when the probability of stepping to adjacent lattice sites is not symmetrical, and is found to be less than that calculated for a symmetrical walk. An asymmetrical stepping probability is shown to result from the thermal vibrations of the lattice. The magnitude of this effect on the exciton lifetime is estimated and found to be significant.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF01007480

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