Abstract

Poly(p-phenylene) (PPP) thin films could be formed by vacuum deposition from their parent powders. Spectroscopic studies showed that the vacuum deposited films contain shorter phenylene chains than the powder samples. The PPP thin films showed strong photoemission the peak of which shifted to longer wavelength with increasing phenylene chain length. The PPP thin films could be doped electrochemically and the photoluminescence intensity was controlled by the doping time

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