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Trapping rate migration experiments

Time-resolved fluorescence measurements on unsubstituted thiophene oligomers in solution indicate a sharp increase of the fluorescence quantum yield when the number of thiophene units is increased from two to seven [56, 70] in such experiments, we expect the migration of the excitons towards trapping centers to be minimized due to the finite size of the systems and the absence of interchain effects. The evolution of ( f with chain size has been related to a decrease in nonradiative decay rate /cnr, since the radiative decay constant is observed to be almost unaffected... [Pg.324]

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See also in sourсe #XX -- [ Pg.45 , Pg.47 ]

See also in sourсe #XX -- [ Pg.45 , Pg.46 ]

See also in sourсe #XX -- [ Pg.45 , Pg.47 ]



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