Spin relaxation in zinc blende and wurtzite CdSe quantum dots

Vanessa M. Huxter, Jeongho Kim, Shun S. Lo, Anna Lee, P. Sreekumari Nair, Gregory D. Scholes

Research output: Contribution to journalArticle

18 Scopus citations

Abstract

We report exciton spin relaxation dynamics in colloidal wurtzite and zinc blende CdSe quantum dots measured using ultrafast cross-polarized heterodyned transient grating spectroscopy. The zinc blende (cubic base) quantum dots have a simpler fine structure as compared to wurtzite (hexagonal base) due to differences in the crystal field splitting. Faster exciton spin relaxation dynamics are observed in the zinc blende quantum dots.

Original languageEnglish (US)
Pages (from-to)187-192
Number of pages6
JournalChemical Physics Letters
Volume491
Issue number4-6
DOIs
StatePublished - May 17 2010
Externally publishedYes

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