In the approximation of effective masses for electronic and phononic – dielectric continuum – systems, the influence of spatial bounding, self-polarization, and exciton-phonon interactions on the exciton state in a flat double nanoheterostructure (a nanofilm) – lead iodide in a polymer matrix –is theoretically investigated for the model of a single infinitely deep quantum well. It is demonstrated that the dominating factor determining the energy of the bottom of the ground exciton band and its binding energy is spatial bounding. The relationship between two other effects depends on the nanofilm thickness, namely, the influence of the self-polarization effect in ultrathin films significantly exceeds that of exciton-phonon interaction.
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 4, pp. 110–116, April, 2014.
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Kramar, V.M., Pugantseva, O.V. Influence of Effects of Self-Polarization and Exciton-Phonon Interactions on the Exciton Energy in Lead Iodide Nanofilms. Russ Phys J 57, 545–553 (2014). https://doi.org/10.1007/s11182-014-0273-z
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DOI: https://doi.org/10.1007/s11182-014-0273-z