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Emission of mixture rhodamine 6G (donor) and DODCI (acceptor) on quartz (Q) and silver island film (S). The emission spectra in the lower panel are normalized to the donor emission. The R6G donor and DODCI acceptor concentrations were 4 × 10−4 and 4 × 10−4 M, respectively. By analogy with similar fluorophores the Forster distance (R0) exceeds 55 Å.
