A study of carrier generation in β-metal-free phthalocyanine

Photoinduced carrier generation has been studied in particle dispersions of β-metal-free phthalocyanine purified by temperature gradient sublimation. In addition to the photoconductive response measured by the delayed-collection-field technique, electric-field-induced fluorescence quenching and delayed fluorescence were also investigated. The results are consistent with the model which assumes that carrier generation proceeds through an …