Document Detail


Single-Nanocrystal Spectroscopy of White-Light-Emitting CdSe Nanocrystals.
MedLine Citation:
PMID:  21338163     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
We report the observation of broad-spectrum fluorescence from single CdSe nanocrystals. Individual semiconductor nanocrystals typically have a narrower emission spectrum than that of an ensemble. However, our experiments show that the ensemble white-light emission observed in ultrasmall CdSe nanocrystals is the result of many single CdSe nanocrystals, each emitting over the entire visible spectrum. These results indicate that each white-light-emitting CdSe nanocrystal contains all the trap states that give rise to the observed white-light emission.
Authors:
Albert D Dukes; Philip C Samson; Joseph D Keene; Lloyd M Davis; John P Wikswo; Sandra J Rosenthal
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-2-22
Journal Detail:
Title:  The journal of physical chemistry. A     Volume:  -     ISSN:  1520-5215     ISO Abbreviation:  -     Publication Date:  2011 Feb 
Date Detail:
Created Date:  2011-2-22     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9890903     Medline TA:  J Phys Chem A     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Department of Chemistry, Vanderbilt University , VU Station B Box 351822, Nashville, Tennessee 37235, United States.
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