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 |
|---|---|
| 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
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Bittner, T., Irrgang, K. D., Renger, G., & Wasielewski, M. R. (1994). Ultrafast excitation energy transfer and exciton. Exciton annihilation processes in isolated light harvesting complexes of photosystem II (LHC II) from spinach. Journal of physical chemistry, 98(46), 11821-11826. https://doi.org/10.1021/j100097a004