Abstract
In the present study we investigated the kinetics of the initial charge separation and energy transfer in the PS II reaction center using pico-second and femto-second time-resolved techniques. We conclude that there are energy transfer processes between s-Car or Pheo and P680 in the PSII reaction center. The time constant of energy transfer from Pheo to P680 is less than 100 ps, while that from (s-Car to P680 is about 350 ps. For the initial charge separation in the PS II reaction center, the preliminary finding supported the about 3-ps time constant of charge separation. The possible kinetic scheme in PS II reaction center was proposed. Further experiments are in progress.
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