1 research outputs found
Photon correlations in the collective emission of hybrid gold-(CdSe/CdS/CdZnS) nanocrystal supraparticles
We investigate the photon statistics of the light emitted by single
self-assembled hybrid gold-CdSe/CdS/CdZnS colloidal nanocrystal supraparticles
through the detailed analysis of the intensity autocorrelation function
. We first reveal that, despite the large number of nanocrystals
involved in the supraparticle emission, antibunching can be observed. We then
present a model based on non-coherent F\"orster energy transfer and Auger
recombination that well captures photon antibunching. Finally, we demonstrate
that some supraparticles exhibit a bunching effect at short time scales
corresponding to coherent collective emission