Energy transfer between coronene and rhodamine 6G in PMMA matrices

The fluorescence lifetime of coronene and the rate of dipole-dipole energy transfer from coronene to rhodamine 6G in PMMA matrices were found to be temperature dependent. For both these photophysical processes an activation energy of about 500 cm^?1 is obtained. The energy transfer results can be analyzed in terms of a model involving thermally activated energy transfer from excited states of coronene.