抄録
Sensitization mechanism in charge carrier photogeneration was investigated from the pulse photocurrent measurements in a poly-N-vinylcarbazole (PVCz) film sensitized by a charge transfer (CT) complex with an electron acceptor, 1, 2, 4, 5-tetracyanobenzene (4 CNB). The wavelength dependence of ion pair quantum yieldon light irradiation supported the previously reported mechanism of extrinsic charge carrier photogeneration involving the ion pair formation from a higher excited state of the CT complex having an excited hole as a component and the field-assisted thermal dissociation of the ion pair.
