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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