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The Electroforming Effect in Polycrystalline Fullerene C60 Films

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Abstract

Long-term exposure of a polycrystalline fullerene C60 film in a constant electric field of 1–4 MV/cm produces an electroforming effect manifested by increase in conductivity of the film within several orders of magnitude. After this electroforming, the current–voltage (I–U) characteristic shows a high degree of current stability and reproducibility of results. In fields of 105–106 V/cm, the I–U characteristics of electroformed films are determined by the space-charge limited current. The concentration (Nt ≈ 4 × 1021 m–3) of carrier traps and their energy (Et ≈ 0.176 eV) have been estimated.

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Authors and Affiliations

  1. Peter the Great St. Petersburg Polytechnic University, 195251, St. Petersburg, Russia

    I. B. Zakharova, D. I. Dolzhenko, V. F. Borodzyulya & N. T. Sudar’

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  1. I. B. Zakharova
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  2. D. I. Dolzhenko
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  3. V. F. Borodzyulya
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  4. N. T. Sudar’
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Correspondence to I. B. Zakharova.

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Translated by P. Pozdeev

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Zakharova, I.B., Dolzhenko, D.I., Borodzyulya, V.F. et al. The Electroforming Effect in Polycrystalline Fullerene C60 Films. Tech. Phys. Lett. 45, 142–144 (2019). https://doi.org/10.1134/S1063785019020378

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  • DOI: https://doi.org/10.1134/S1063785019020378

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