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Article Dans Une Revue Nanotechnology Année : 2024

Photon correlations in the collective emission of hybrid gold-(CdSe/CdS/CdZnS) nanocrystal supraparticles

Victor Blondot
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Guillaume Quibeuf
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C Arnold
A Delteil
S Buil
J-P Hermier

Résumé

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 g (2) ( τ ). 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 Förster 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.
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Dates et versions

hal-04616245 , version 1 (18-06-2024)

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Citer

Victor Blondot, Domitille Gérard, Guillaume Quibeuf, C Arnold, A Delteil, et al.. Photon correlations in the collective emission of hybrid gold-(CdSe/CdS/CdZnS) nanocrystal supraparticles. Nanotechnology, 2024, 35 (36), pp.365001. ⟨10.1088/1361-6528/ad3832⟩. ⟨hal-04616245⟩
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