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Gold plasmonic enhanced luminescence of silica encapsulated semiconductor hetero-nanoplatelets.


ABSTRACT: Optical properties of nanocrystals have the potential to drive the next generation of optoelectronic devices. However, a number of technological limitations remain to be overcome. Nanocrystals' emission is strongly impacted by the chemical environment and high excitation power. In this paper, we present a preparation route to hybrid core-shell nanoplatelets encapsulated in a gold silica shield. The induced plasmon coupling offers a higher brightness at high power excitation. We also detail the highly increased fluorescence stability offered by the silica-gold-shell protection against photobleaching processes.

SUBMITTER: Garcia E 

PROVIDER: S-EPMC9417742 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature

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Gold plasmonic enhanced luminescence of silica encapsulated semiconductor hetero-nanoplatelets.

Garcia Emilio E   Arnold Christophe C   Hermier Jean-Pierre JP   D'Amico Michele M  

Nanoscale advances 20210618 15


Optical properties of nanocrystals have the potential to drive the next generation of optoelectronic devices. However, a number of technological limitations remain to be overcome. Nanocrystals' emission is strongly impacted by the chemical environment and high excitation power. In this paper, we present a preparation route to hybrid core-shell nanoplatelets encapsulated in a gold silica shield. The induced plasmon coupling offers a higher brightness at high power excitation. We also detail the h  ...[more]

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