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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/27618

Title: Ultrafast dynamics of excitations in conjugated polymers: a spectroscopic study
Authors: R. Chang;M. Hayashi;S. H. Lin;J.-H. Hsu;W. S. Fann
Contributors: NTOU:Institute of Optoelectronic Sciences
Keywords: polymers;excited states;photoluminescence;time resolved spectra;polymer films;excitons
Date: 2002-09-01
Issue Date: 2011-10-21T02:32:25Z
Publisher: Journal of Chemical Physics
Abstract: Abstract:We construct a microscopic model to describe the excited states of poly(2-methoxy, 5-(2′-ethylhexoxy)-p-(phenylenevinylene) in thin film. Within this model, we deduce that in the high energy region, the nature of excited states in the film is very similar to the species observed in solution phase. Moreover, we propose that the decay process of these excited states involves energy transfer, vibrational relaxation, and dissipation simultaneously, in contrast to the usual argument that assumes exciton migration occurs after vibrational motion reaches thermal equilibrium. As a result, the simulation of time-resolved photoluminescence spectra is in agreement with the experiment.
Relation: 115(9), pp.4339-4347
URI: http://ntour.ntou.edu.tw/handle/987654321/27618
Appears in Collections:[光電科學研究所] 期刊論文

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