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Characteristic features of the photoconductivity and spin conversion of electron-hole pairs in doped amorphous molecular semiconductors in the dye absorption region

  • Semiconductors and Insulators
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Abstract

The photoconductivity of doped poly-N-epoxypropylcarbazole films in the absorption region of a cationic polymethine dye is observed to increase when the BF −4 ion is replaced by Cl− and I−. The effect of a magnetic field on the photoluminescence is investigated at room temperature. The photoconductivity is studied as a function of the electric field intensity and wavelength of light. The dependence of the photoconductivity on the nature of the anion can be explained by a change in the probability of intercombination conversion in ionic and electron-hole pairs.

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Authors and Affiliations

  1. T. Shevchenko Kiev State University, 252033, Kiev, Ukraine

    N. A. Davidenko

  2. Institute of Organic Chemistry, Ukrainian Academy of Sciences, 253094, Kiev, Ukraine

    A. A. Ishchenko

Authors
  1. N. A. Davidenko
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  2. A. A. Ishchenko
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Fiz. Tverd. Tela (St. Petersburg) 41, 44–48 (January 1999)

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Davidenko, N.A., Ishchenko, A.A. Characteristic features of the photoconductivity and spin conversion of electron-hole pairs in doped amorphous molecular semiconductors in the dye absorption region. Phys. Solid State 41, 37–40 (1999). https://doi.org/10.1134/1.1130725

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  • DOI: https://doi.org/10.1134/1.1130725

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