Electronic excited state energy transfer, trapping by dimers and fluorescence quenching in concentrated dye solutions: Picosecond transient grating exp
1981
Abstract Picosecond transient grating experiments are used to examine electronic excited state dynamics in concentrated dye solutions. A model based on radiationless excited state transport and trapping by dimers describes the phenomena responsible for fluorescence quenching. The trapping rate constant is found to have a cubic concentration dependence. Rhodamine 6G dimer lifetimes in glycerol and ethanol are 830 ps and
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