Mapping emissive channels of quantum dots: Influence of size and environment on energy transfer in the time domain

E. Faulques, F. Massuyeau, Q. Wang, Dong Kyun Seo, S. Jobic

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

In the quantum confinement regime, the time-resolved photoluminescence mapping of CdSe nanocrystals reveals unusual size-dependent characteristics in solute or solid-state environments. The former case typifies long-lived intradot exciton recombinations, while in the latter energy-dependent Kohlrausch relaxations quench luminescence via interdot energy transfer. The observed energy transfer rate increases for larger size (1.5× 108 s -1 for d=2.5 nm and 6.4× 108 s-1 for d=10 nm).

Original languageEnglish
Article number153111
JournalApplied Physics Letters
Volume97
Issue number15
DOIs
Publication statusPublished - Oct 11 2010

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energy transfer
quantum dots
nanocrystals
solutes
excitons
luminescence
solid state
photoluminescence
energy

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Mapping emissive channels of quantum dots : Influence of size and environment on energy transfer in the time domain. / Faulques, E.; Massuyeau, F.; Wang, Q.; Seo, Dong Kyun; Jobic, S.

In: Applied Physics Letters, Vol. 97, No. 15, 153111, 11.10.2010.

Research output: Contribution to journalArticle

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