Contribution of electron-phonon coupling to the luminescence spectra of single colloidal quantum dots

Abstract

Luminescence spectroscopy experiments were realized for single colloidal quantum dots CdSe/ZnS in a broad temperature range above room temperature in a nitrogen atmosphere. Broadening and shifts of spectra due to the temperature change as well as due to spectral diffusion processes were detected and analyzed. A linear correlation between the positions of maxima and the squared linewidths of the spectra was found. This dependence was explained by a model which takes into account the slow variation of the electron-phonon coupling strength.

arXiv comment10 pages, 6 figures

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Cited by in corpus (1)

• Model of luminescence and delayed luminescence correlated blinking in single CsPbBr${}_3$ nanocrystals