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Photoluminescence Spectra of Quantum Dots: Enhanced Efficiency of the Electron-Phonon Interaction

J. T. Devreese·V. M. Fomin·V. N. Gladilin·S. N. Klimin
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Abstract

A theory of photoluminescence in semiconductor quantum dots is developed which relies on two key ingredients. First, it takes into account non-adiabaticity of the exciton-phonon system. Second, it includes the multimode dielectric model of LO-phonons and of the electron-phonon interaction in confined systems. The role of non-adiabaticity is shown to be of paramount importance in spherical quantum dots, where the lowest one-exciton state can be degenerate or quasi-degenerate. For various quantum dot structures, the calculated intensities of phonon satellites as a function of temperature, excitation energy and size of quantum dots are in a fair agreement with experimental data on photoluminescence.

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J. T. Devreese, V. M. Fomin, V. N. Gladilin, S. N. Klimin. 2001-07-23. Photoluminescence Spectra of Quantum Dots: Enhanced Efficiency of the Electron-Phonon Interaction. https://doi.org/10.1002/(sici)1521-3951(200104)224%3A3%3C609%3A%3Aaid-pssb609%3E3.3.co%3B2-4

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