Electron transfer in a disordered polymeric system: fluorescence spectroscopy study

Experimental studies of electron transfer in a polymeric matrix were made using fluorescence spectroscopy. Donor molecules were excited in the presence of acceptor molecules and the decay time of the donor fluorescence was measured. The data were analyzed using the model for electron transfer in a disordered system. The idea was to verify the validity of the model in the very large disorder limit. Using a random sample, the electron transfer rate obtained could be compared to the one obtained considering the random distribution of acceptors. A good agreement was obtained. (C) 1999 Elsevier Science B.V. All rights reserved.