Multiple temperature regimes of radiative decay in CdSe nanocrystal quantum dots

Intrinsic limits to the dark-exciton lifetime

S. A. Crooker, T. Barrick, J. A. Hollingsworth, V. I. Klimov

Research output: Contribution to journalArticle

290 Citations (Scopus)

Abstract

The temperature dependent radiative lifetime of electron-hole excitations in colloidal CdSe nanocrystal quantum dots was investigated. The studies reveal an intrinsic, radiative upper limit of approximately 1 micro sec. for the storage of excitons below 2K. At higher temperatures, the exciton lifetimes were consistent with thermal activation from the dark exciton ground state.

Original languageEnglish
Pages (from-to)2793-2795
Number of pages3
JournalApplied Physics Letters
Volume82
Issue number17
DOIs
Publication statusPublished - Apr 28 2003

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nanocrystals
quantum dots
excitons
life (durability)
decay
radiative lifetime
temperature
activation
ground state
excitation

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Multiple temperature regimes of radiative decay in CdSe nanocrystal quantum dots : Intrinsic limits to the dark-exciton lifetime. / Crooker, S. A.; Barrick, T.; Hollingsworth, J. A.; Klimov, V. I.

In: Applied Physics Letters, Vol. 82, No. 17, 28.04.2003, p. 2793-2795.

Research output: Contribution to journalArticle

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