Abstract
Dark conductivity and photoconductivity measurements on poly(bis(2- naphthoxy)phosphazene) (P2NP) films indicate that this polymer behaves as an insulator and presents a very low photosensitivity towards UV and visible radiation. The same polymer, doped with trinitrofluorenone (TNF) in a 1:1 molar ratio, is a strong photoconductor with a sensitivity comparable with that obtained from the well-known system containing poly(vinyl carbazole), 1:1 PVK-TNF. The shape of the action spectra in the weak optical absorption region suggests a mechanism of charge pair photogeneration through the excited charge transfer complex.
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