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Charge-transfer complexes triplet excitons

The main result of the early EPR and ODMR work was a reduction of the ZFS parameters D( and when comparing monomeric 3BChl and the 3P state of the primary donor in bRCs (for a collection of data see reference 22). This has been interpreted as resulting from a delocalization of the triplet exciton in the BChl-dimer. However, due to the complexity of the electronic system, that could also involve charge transfer states, a final quantitative conclusion has been difficult. From a determination of the triplet axes in bRC single crystals104 107 it was concluded that in R. sphaeroides the triplet is indeed delocalized whereas in B. viridis it seems to be located on one monomeric BChl b half. [Pg.182]

Photoexcitation of the complex is accompanied by charge transfer from the donor TBPDA molecule to the acceptor C6o one and CT-exciton is formed. Depending on mutual orientation of spins of components (electrons and holes), CT-exciton can be either a singlet or a triplet one. Free charge carriers are formed in molecular crystals mainly due to thermal or impurity dissociation of triplet CT-excitons [6],... [Pg.170]

See other pages where Charge-transfer complexes triplet excitons is mentioned: [Pg.467]    [Pg.125]    [Pg.199]    [Pg.421]    [Pg.430]    [Pg.542]    [Pg.224]    [Pg.167]    [Pg.172]    [Pg.58]    [Pg.32]    [Pg.63]    [Pg.82]    [Pg.227]    [Pg.1]    [Pg.350]    [Pg.253]    [Pg.494]    [Pg.300]    [Pg.189]    [Pg.413]    [Pg.84]    [Pg.413]    [Pg.277]   


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Charge-transfer complexities

Charge-transfer excitons

Complex charge

Complex charge-transfer

Exciton

Exciton/excitonic

Excitons

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