Abstract
Bulk photoconductive properties of a photoplastic recording film composed of tetracyanoethylene and pyrene dissolved in polystyrene were investigated. Current-voltage dependence was consistent with Schottky emission from the electrode into the dielectric. Steady state photocurrent was directly proportional to illumination with a gain of 10−5 electron/photon. From the optical absorption spectra, the presence of charge-transfer complexes of tetracyanoethylene with pyrene and polystyrene was established. The photoconduction action spectrum and the concentration dependence of photoconductivity pointed to the tetracyanoethylene-pyrene complex as the source of photogenerated carriers. Complexed polystyrene appeared to act as a semiconducting matrix with an apparent activation energy of 0.6–0.8 eV.
© 1969 Optical Society of America
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