Fluorescence enhancement and FRET inhibition in self-assembled hybrid gold -CdSe/CdS/CdZnS colloidal nanocrystals supraparticles

Posted on 2023-01-25 - 02:52
We report on the synthesis of hybrid light emitting particles with a diameter ranging between 100 and 500 nm, consisting in a compact semiconductor CdSe/CdS/CdZnS nanocrystal aggregate encapsulated by a controlled nanometric size silica and gold layers. We first characterize the Purcell decay rate enhancement corresponding to the addition of the gold nanoshell as a function of the particle size and find a good agreement with the predictions of numerical simulations. Then, we show that the contribution corresponding to F\"orster resonance energy transfer is inhibited.

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Blondot, Victor; Arnold, Christophe; Delteil, Aymeric; Gérard, Domitille; Bogicevic, Alexandra; Pons, Thomas; et al. (2023): Fluorescence enhancement and FRET inhibition in self-assembled hybrid gold -CdSe/CdS/CdZnS colloidal nanocrystals supraparticles. Optica Publishing Group. Collection. https://doi.org/10.6084/m9.figshare.c.6335051.v2
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AUTHORS (10)

Victor Blondot
Christophe Arnold
Aymeric Delteil
Domitille Gérard
Alexandra Bogicevic
Thomas Pons
Nicolas Lequeux
Jean-Paul Hugonin
Jean-Jacques Greffet
Stephanie Buil

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