Subnanosecond spectral diffusion of a single quantum dot in a nanowire

Details Subnanosecond spectral diffusion of a single quantum dot in a nanowire Subnanosecond spectral diffusion of a single quantum dot in a nanowire

2011-05-04

arxiv.org/abs/1105.0774v1

Phys. Rev. B 84, 041405 (2011)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

We have studied spectral diffusion of the photoluminescence of a single CdSe quantum dot inserted in a ZnSe nanowire. We have measured the characteristic diffusion time as a function of pumping power and temperature using a recently developed technique [G. Sallen et al, Nature Photon. \textbf{4}, 696 (2010)] that offers subnanosecond resolution. These data are consistent with a model where only a \emph{single} carrier wanders around in traps located in the vicinity of the quantum dot.

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