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Please use this identifier to cite or link to this item: http://hdl.handle.net/2262/40594

Title: FRET in self-assembled CdTe quantum dot nanoclusters
Author: GERARD, VALERIE
HIGGINS, CLARE
GOUNKO, IOURI
BRADLEY, LOUISE
LUNZ, MANUELA
Sponsor: Science Foundation Ireland
Author's Homepage: http://people.tcd.ie/igounko
http://people.tcd.ie/higgincl
http://people.tcd.ie/bradlel
http://people.tcd.ie/lunzm
Keywords: Photonics
Colloidal CdTe quantum dots (QDs)
Issue Date: 2010
Publisher: IEEE Computer Society Press
Citation: Higgins, Clare; Lunz, Manuela; Bradley, A. Louise; Gerard, Valerie A.; Byrne, Stephen; Gun'ko, Yurii K.;, FRET in self-assembled CdTe quantum dot nanoclusters, 12th International Conference on Transparent Optical Networks (ICTON), Munich, Germany, June 27-July 1, IEEE Computer Society Press, 2010, 1 - 4
Abstract: Colloidal CdTe quantum dots (QDs) with oppositely charged ligand shells were used to form quantum dot nanoclusters in solution. The signatures of Forster non-radiative energy transfer in the photoluminescence and time-resolved photoluminescence data indicates that the electrostatic attraction draws the QDs into close proximity forming nanoclusters. The smaller QDs act as donors and the larger QDs act as acceptors within the cluster and a FRET efficiency of 45% has been recorded. Both the time-resolved and spectral PL data show a strong donor concentration dependence. The acceptor photoluminescence enhancement and FRET efficiency can be tuned by adjusting the dononacceptor ratio.
Description: PUBLISHED
URI: http://hdl.handle.net/2262/40594
Related links: http://dx.doi.org/10.1109/ICTON.2010.5549025
Appears in Collections:Chemistry (Scholarly Publications)

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