Journal
ACS NANO
Volume 4, Issue 2, Pages 759-764Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nn901294d
Keywords
gold nanoparticles; fluorescence enhancement; fluorescence quenching; quantum dots; energy transfer
Categories
Funding
- ANR
- Region Champagne-Ardennes [E2007-08052]
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We report on the emission of hybrid nanosources composed of gold nanoparticles coupled with quantum dots. The emission relies on energy transfer from the quantum dots to gold nanoparticles which could be de-excited through radiative plasmon relaxation. The dependence of the emission efficiency is studied systematically as a function of the size of gold nanoparticles and interdistance between gold nanoparticles and quantum dots. We demonstrate a size-dependent transition between quenching and enhancement and a nonradiative energy transfer from the quantum dots to the gold nanoparticles.
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