Peculiarities of excitons relaxation in molecular chains (J-aggregates)
of limited length

Yu.V. Malyukin, K. Kemnitz*


 Institute for Single Crystals, National Academy of Sciences,
60 Lenin Ave., 310001 Kharkiv, Ukraine
* EuroPhoton GmbH. 27, Mozartstr, D-12247 Berlin, Germany

Peculiarities of exciton relaxation in one-dimensional molecular
chains characterized by diagonal and off-diagonal disorder have been
analysed. Obtained results are explained using the  exciton self-trapping
model. It has been shown that free and self-trapped exciton states
in one-dimensional molecular chains are separated by the self-trapping  barrier.

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