NDLI: Surface plasmon enhanced Förster resonance energy transfer between the CdTe quantum dots

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Surface plasmon enhanced Förster resonance energy transfer between the CdTe quantum dots

Content Provider	Semantic Scholar
Author	Komarala, Vamsi Krishna Bradley, A. Louise Rakovich, Yury Byrne, Stephen J. Gun’ko, Yurii K. Rogach, Andrey L.
Copyright Year	2008
Abstract	Forster resonance energy transfer (FRET) between CdTe quantum dots (QDs) at nanoscale proximity to gold nanoparticle (Au NP) layers is investigated experimentally. We have observed the enhancement in the acceptor QDs’ photoluminescence lifetime intensities. The decrease in donor QDs’ exciton lifetime from 5.74to2.06ns, accompanied by an increase in acceptor QDs’ exciton lifetime from 3.38to7.52ns, provided evidence for enhanced FRET between the QDs near Au NPs. The Au NPs’ surface plasmon dipole fields are assisted to overcome the weak electronic coupling between the emitting (donor) and absorbing (acceptor) transition exciton dipoles in the homogeneous medium.Forster resonance energy transfer (FRET) between CdTe quantum dots (QDs) at nanoscale proximity to gold nanoparticle (Au NP) layers is investigated experimentally. We have observed the enhancement in the acceptor QDs’ photoluminescence lifetime intensities. The decrease in donor QDs’ exciton lifetime from 5.74to2.06ns, accompanied by an increase in acceptor QDs’ exciton lifetime from 3.38to7.52ns, provided evidence for enhanced FRET between the QDs near Au NPs. The Au NPs’ surface plasmon dipole fields are assisted to overcome the weak electronic coupling between the emitting (donor) and absorbing (acceptor) transition exciton dipoles in the homogeneous medium.
Starting Page	123102
Ending Page	123102
Page Count	1
File Format	PDF HTM / HTML
DOI	10.1063/1.2981209
Alternate Webpage(s)	http://www.tara.tcd.ie/bitstream/handle/2262/31148/Surface%20plasmon.pdf?isAllowed=y&sequence=1
Alternate Webpage(s)	https://doi.org/10.1063/1.2981209
Volume Number	93
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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