Abstract
The distribution of an electric field has been investigated in Langmuir-Blodgett thin-film heterostructures prepared by sequentially transferring layers of the ferroelectric copolymer poly(vinylidene fluoride-trifluoroethylene) P(70% VDF 70% –30% TrFE) and the azo dye. An alternating-current voltage applied to the electrodes is unevenly distributed across layers of the dye and the copolymer in accordance with a constant induction along the normal to the heterostructure. The electric-field-induced shift of the absorption spectrum of the dye serves as a probe of the electric field and reveals a noticeable amplification of the electric field in the dye layers (by a factor of 2–7). The electric field in the ferroelectric is directed opposite to the direction of the electric field applied to the electrodes of the heterostructure.
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Original Russian Text © S.G. Yudin, L.M. Blinov, V.V. Lazarev, S.P. Palto, 2012, published in Fizika Tverdogo Tela, 2012, Vol. 54, No. 5, pp. 885–888.
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Yudin, S.G., Blinov, L.M., Lazarev, V.V. et al. Distribution and amplification of an electric field in ferroelectric-dye heterostructures. Phys. Solid State 54, 940–944 (2012). https://doi.org/10.1134/S1063783412050484
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DOI: https://doi.org/10.1134/S1063783412050484