Energy transfer studies in dye mixtures in different solvent environments

The energy transfer mechanism in C 540-rhodamine 6G and C 540-rhodamine B donor-acceptor (D-A) pairs is investigated. The good spectral overlap and the proximity of D-A pair molecules, which is around 60 angstrom, denote the possibility of resonance energy transfer between the D-A pairs. Energy transfer is studied in two solvent environments. C 540-Rh 6G and C 540-RhB D-A pairs behave in quite different manner in different solvent environments. (C) 2008 Elsevier Ltd. All rights reserved.