Applied Physics Letters, volume 94, issue 24, pages 243116

Experimental tests of effective mass and atomistic approaches to quantum dot electronic structure: Ordering of electronic states

Publication typeJournal Article
Publication date2009-06-15
scimago Q1
SJR0.976
CiteScore6.4
Impact factor3.5
ISSN00036951, 10773118
Physics and Astronomy (miscellaneous)
Abstract

The overall symmetry of the envelope functions for the four lowest energy excitonic states in colloidal CdSe quantum dots are assigned using excitonic state-resolved pump/probe spectroscopy. These experiments yield a direct test of the two prevailing approaches to quantum dot electronic structure: the effective mass and the atomistic approaches. The experimental results are in complete agreement with the atomistic approach, whereas the effective mass approach fails to assign the correct electron symmetries for higher excitonic states.

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