Abstract
The processes of triplet-triplet annihilation of the triplet-energy donor of Bengali rose dye and anthracene acceptor adsorbed on the surface of wide-pore silica have been investigated in the temperature range 150–290 K. The rate constants of homo- and heteroannihilation of the molecules of luminophors have been determined in a wide temperature range. It has been established that the processes of energy transfer in the initial (after photoexcitation) periods of phosphorescence decay are described by the Inokuti–Hirayama equations modified in the present work for a two-dimensional problem, whereas in the mean-time and long-time periods the kinetics of phosphorescence decay becomes similar to the fractal one.
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Karstina, S.G., Markova, M.P. & Bryukhanov, V.V. Homo- and Heteroannihilation of Triplet-Excited Bengali Rose and Anthracene Molecules on Silica in a Wide Temperature Range. Journal of Applied Spectroscopy 70, 733–739 (2003). https://doi.org/10.1023/B:JAPS.0000008871.70120.d4
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DOI: https://doi.org/10.1023/B:JAPS.0000008871.70120.d4