Confinement-enhanced biexciton binding energy in semiconductor quantum dots

K. I. Kang, A. D. Kepner, S. V. Gaponenko, S. W. Koch, Y. Z. Hu, N. Peyghambarian

Research output: Contribution to journalArticle

73 Scopus citations

Abstract

Experimental observation of the ground-state biexciton transition in CdSxSe1-x quantum dots in glass is presented in a three-beam experiment, involving a probe, a pump, and a saturating laser pulse. The observed quantum-dot biexciton ground state has a strongly enhanced binding energy compared to the bulk as theoretically predicted. The biexciton binding energy is measured as a function of quantum-dot size and the results are compared with calculations.

Original languageEnglish (US)
Pages (from-to)15449-15452
Number of pages4
JournalPhysical Review B
Volume48
Issue number20
DOIs
StatePublished - Jan 1 1993

ASJC Scopus subject areas

  • Condensed Matter Physics

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