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Light intensity-induced photocurrent switching effect

Author

Listed:
  • Agnieszka Podborska

    (AGH University of Science and Technology)

  • Maciej Suchecki

    (AGH University of Science and Technology
    AGH University of Science and Technology)

  • Krzysztof Mech

    (AGH University of Science and Technology)

  • Mateusz Marzec

    (AGH University of Science and Technology)

  • Kacper Pilarczyk

    (AGH University of Science and Technology)

  • Konrad Szaciłowski

    (AGH University of Science and Technology)

Abstract

A better control over processes responsible for the photocurrent generation in semiconductors and nanocomposites is essential in the fabrication of photovoltaic devices, efficient photocatalysts and optoelectronic elements. Therefore, new approaches towards photochemical properties tuning are intensively searched for. Among numerous parameters, the photocurrent polarity is of great importance to the overall performance of a device. Usually, the polarity is controlled through an alignment of electronic states/bands, tailoring of applied potential or suitable selection of incident light wavelengths. In most scenarios though, the influence of light intensity is somehow neglected and either some arbitrarily chosen, natural conditions are mimicked or this parameter is varied only in a narrow range. Here we present a ternary nanocomposite in which the persistent photocurrent polarity switching is achieved through changes in the light intensity. We also present arguments suggesting this behaviour is of a general character and should be considered also in other photochemical systems.

Suggested Citation

  • Agnieszka Podborska & Maciej Suchecki & Krzysztof Mech & Mateusz Marzec & Kacper Pilarczyk & Konrad Szaciłowski, 2020. "Light intensity-induced photocurrent switching effect," Nature Communications, Nature, vol. 11(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-14675-5
    DOI: 10.1038/s41467-020-14675-5
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