dc.creator Patel, J. S. en_US dc.creator Hanson, D. M. en_US dc.date.accessioned 2006-06-15T14:43:11Z dc.date.available 2006-06-15T14:43:11Z dc.date.issued 1981 en_US dc.identifier 1981-TF-4 en_US dc.identifier.uri http://hdl.handle.net/1811/11705 dc.description Author Institution: en_US dc.description.abstract Electronic excitation energy transfer in molecular crystals has been studied in the past by varying the concentration and the nature of scattering and trapping centers. Externally applied electric fields can be used to study energy transfer under better controlled conditions by creating energy mismatches between neighbouring molecules. A model has been developed for a linear crystal composed of two molecules per unit cell with an antiferroelectric arrangement of dipole moments. Expessions are derived for the trapping rate functions in the various scattering regimes. The model predicts that an externally applied electric field should decrease the exciton motion, and hence increase the exciton luminescence. Such an increase has been observed in 4,4$^{\prime}$-dichloro-benzophenone and 4,4 $^{\prime}$-dimethylbenzophenone. The functional form of the change in exciton luminescence with applied field is determined in the model by the processes that limit the coherence of the exciton motion. en_US dc.format.extent 81155 bytes dc.format.mimetype image/jpeg dc.language.iso English en_US dc.publisher Ohio State University en_US dc.title EFFECTS OF ELECTRIC FIELDS ON ENERGY TRANSFER IN MOLECULAR CRYSTALS en_US dc.type article en_US
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