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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-22 2:05 |
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Conference: Bucharest University Faculty of Physics 2012 Meeting
Section: Polymer Physics
Title:
Representative Longitudinal Optical Phonon Modes in Polar Semiconductor Quantum Dots
Authors:
T. O. CHECHE
Affiliation:
Faculty of Physics, University of Bucharest, Bucharest 077125, Romania
E-mail
tiberiuscheche@yahoo.com
Keywords:
phonon modes, exciton-phonon interaction, quantum dots, Fröhlich interaction
Abstract:
Existence of representative bulk longitudinal optical (LO) phonon modes for the exciton-phonon interaction is theoretically discussed for the case of polar semiconductor cylindrical quantum dots embedded in a semiconductor matrix. The approach is developed within the dielectric continuum model considering the Fröhlich interaction between electrons and the confined LO phonons. The theory is applied to cylindrical GaAs/AlAs and InAs/GaAs quantum dots models within an adiabatic treatment.
Note: This work was supported by the strategic grant POSDRU/89/1.5/S/58852, Project „Postdoctoral programme for training scientific researchers“ cofinanced by the European Social Found within the Sectorial Operational Program Human Resources Development 2007-2013“.
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