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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
22
pubmed:dateCreated
2003-12-19
pubmed:abstractText
We study the effect of the zero- to one-dimensional (1D) transformation on multiparticle Auger recombination using a series of elongated semiconductor nanocrystals (quantum rods). We observe a transition from the three- to two-particle recombination process as the nanocrystal aspect ratio is increased. This transition indicates that in the 1D confinement limit, Auger decay is dominated by Coulomb interactions between 1D excitons that recombine in a bimolecular fashion. One consequence of this effect is strongly reduced decay rates of higher multiparticle states that lead to increased optical-gain lifetimes and efficient light amplification due to involvement of excited electronic states.
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Nov
pubmed:issn
0031-9007
pubmed:author
pubmed:issnType
Print
pubmed:day
28
pubmed:volume
91
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
227401
pubmed:year
2003
pubmed:articleTitle
Effect of zero- to one-dimensional transformation on multiparticle Auger recombination in semiconductor quantum rods.
pubmed:affiliation
Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
pubmed:publicationType
Journal Article