| Abstract: | Abstract— In three-component systems, consisting of poly-N-vinyl-carbazole/acceptor/dye, besides the polymer band and the dye band, an additional peak in the photoconduction spectrum is formed. By comparison with the absorption spectrum, it is shown that the additional peak in the photoconduction spectrum cannot be related to the charge-transfer band between the polymer and the acceptor nor to the charge-transfer band between dye and acceptor. As an explanation, a cooperation of acceptor radicals — which are formed in the dark between poly-N-vinyl-carbazole and acceptor molecules — and dye is discussed. |
