Abstract
Excitation energy transfer and exciton-exciton annihilation in the isolated light-harvesting chlorophyll alb protein complex of spinach photosystem II (LHC II) has been studied by two-color absorption difference spectroscopy with femtosecond time resolution. The kinetic curves of the transient absorption changes at 680 nm show a remarkable intensity dependence which is ascribed to exciton-exciton annihilation. It is concluded that annihilation processes preferably occur among excited singlet states of Chl a molecules.
Original language | English |
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Pages (from-to) | 11821-11826 |
Number of pages | 6 |
Journal | Journal of physical chemistry |
Volume | 98 |
Issue number | 46 |
DOIs | |
Publication status | Published - Jan 1 1994 |
ASJC Scopus subject areas
- Engineering(all)
- Physical and Theoretical Chemistry