Zhang Huiping, Guo Chu. EXCITATION TRANSFER BETWEEN COUMARIN, RHODAMINE DERIVATIVES AND LASER DYE DCM MOLECULES[J]. Chinese Journal of Luminescence, 1986,7(1): 63-63
Zhang Huiping, Guo Chu. EXCITATION TRANSFER BETWEEN COUMARIN, RHODAMINE DERIVATIVES AND LASER DYE DCM MOLECULES[J]. Chinese Journal of Luminescence, 1986,7(1): 63-63DOI:
The excitation and fluorescence emission spectra of Coumarin 4-DCM
Coumarin 481-DCM
Coumarin 540A-Rhodamine 6G and Coumarin 540A -Rhodamine 640 systems in alcoholic solvents have been measured. The results obtained clearly show the occurance of intermolecular excitation transfer between the donor and acceptor molecules in each system examined. However
the fuorescence intensity of acceptor is increased by excitation transfer from the donor molecule. Such as in the Coumarin 4 and 481-DCM systems
the emission of coumarins is quenched by addition of DCM
but no enhancement of DCM emission is observed in these cases
and the emission intensity of DCM even becomes reduced as compared with that observed in the absence of added coumarins as a donor.