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Excitonic Transition Energy Renormalization in Lead Diiodide Nanofilm Caused by Self-Polarization Effects and Electron-Phonon Interaction

Author(s): O.V. Pugantseva | V.M. Kramar

Journal: Journal of Nano- and Electronic Physics
ISSN 2077-6772

Volume: 5;
Issue: 3;
Start page: 03036-1;
Date: 2013;
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Keywords: Nanoheterostructure | Quantum well | Exciton | Lead diiodid

Results of the theoretical study of the contributions of self-polarization effect and exciton-phonon interaction to the exciton transition energy in a flat semiconductor nanofilm are presented here. Calculations of the binding and exciton ground state energies are performed using 2H-PbI2 nanofilm embedded in ethylene-methacrylic acid (E-MAA) copolymer. It has been revealed that in ultrathin nanofilms the self-pola-rization effect contribution to the exciton energy is more than from the interaction with polarizing optical phonons.
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