The new photoconducting ferroelectric polymer is prepared by means of dye sensitization of ferroelectric vinylidene fluoride-trifluoroethylene copolymers P(VDP-TrFE). The photoconductivity, the bulk photovoltaic effect and photochromic effect have been observed in the spectral bands connected with dye molecules absorption. The new photoconducting ferroelectric polymer may be used as the photorefractive material. By means of the photochromic effect in the ferroelectric copolymer doped by indolynospiropyran the transmission gratings were received. At the ferroelectric phase transition the sharp changes of the dye energy level and oscillator strength are revealed.
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Verkhovskaya et al. (1992) studied this question.
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