Abstract
Long-term afterglow emission (AG) of poly(arylene phthalide) films (PAP) irradiated with visible light has been discovered. Recombination nature of the AG was experimentally proven as in the case of UV irradiation. Features of the observed AG spectra were analyzed in comparison with the photo-, electro-, and thermoluminescence spectra of the PAP films in relation to the commonness of the AG generation mechanism, which is associated with the involvement of the two-photon reactions and triplet states in the photoprocesses in PAP.
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