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Exciton-optical-phonon coupling: comparison with experiments for ZnO quantum wells

T. Makino·Y. Segawa·M. Kawasaki
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Abstract

The temperature-dependent linewidths of excitons in ZnO quantum wells were studied by measuring absorption spectra from 5 K to room temperature. We deduced experimentally the exciton-longitudinal-optical (LO) phonon coupling strength, which showed reduction of coupling with decrease in well width. This reduction was explained in terms of confinement-induced enhancement of the excitonic binding energy by comparing the binding energy dependence of calculated coupling strength.

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T. Makino, Y. Segawa, M. Kawasaki. 2005-03-16. Exciton-optical-phonon coupling: comparison with experiments for ZnO quantum wells. https://doi.org/10.1063/1.1900294

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