EFFECTS OF PIGMENT HETEROGENEITY ON FLUORESCENCE IN PHOTOSYNTHETIC UNITS

Authors

  • C. E. Swenberg,

    1. Department of Chemistry and The Radiation and Solid State Laboratory. New York University, New York, NY 10003, U.S.A.
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    • *National Institute of Mental Health, St. Elizabeth Hospital, Washington, D.C. 20032. U.S.A.

  • R. Dominijanni,

    1. Department of Chemistry and The Radiation and Solid State Laboratory. New York University, New York, NY 10003, U.S.A.
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  • N. E. Geacintov

    1. Department of Chemistry and The Radiation and Solid State Laboratory. New York University, New York, NY 10003, U.S.A.
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Summary

A computer solution of the Pauli Master Equation is used to study the fluorescence quantum yield of a two-dimensional random host-trap-anti-trap system. Calculations predict that both the quantum yield and prompt fluorescence lifetime from photosynthetic units increase as pigment heterogeneity increases. From the temperature dependent action spectrum of fluorescence the pairwise Forster transfer rate is predicted to decrease with decreasing temperature.

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