Non‐linear thermal broadening of exciton lines in CdTe self‐organized quantum dots
2006
Micro-photoluminescence is used to study the temperature dependence of CdTe self-assembled quantum dots. The observation of the micro-photoluminescence spectra with temperature shows that there are two different structures, namely the zero-phonon line and the phonon sidebands. When the temperature increases, the sidebands become clearer and show substantial broadening. The experimental data are reproduced well by a theoretical model taking into account the carrier-acoustic-phonon coupling. (© 2006 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
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