Size-dependent electronic level structure of InAs nanocrystal quantum dots: Test of multiband effective mass theory

U. Banin*, C. J. Lee, A. A. Guzelian, A. V. Kadavanich, A. P. Alivisatos, W. Jaskolski, G. W. Bryant, Al L. Efros, M. Rosen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

155 Scopus citations

Abstract

The size dependence of the electronic spectrum of InAs nanocrystals ranging in radius from 10-35 Å has been studied by size-selective spectroscopy. An eight-band effective mass theory of the quantum size levels has been developed which describes the observed absorption level structure and transition intensities very well down to smallest crystal size using bulk band parameters. This model generalizes the six-band model which works well in CdSe nanocrystals and should adequately describe most direct semiconductor nanocrystals with band edge at the Γ-point of the Brillouin zone.

Original languageAmerican English
Pages (from-to)2306-2309
Number of pages4
JournalJournal of Chemical Physics
Volume109
Issue number6
DOIs
StatePublished - 1998
Externally publishedYes

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