Document Detail


Enhanced thermopower in PbSe nanocrystal quantum dot superlattices.
MedLine Citation:
PMID:  18597536     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
We examine the effect of strong three-dimensional quantum confinement on the thermopower and electrical conductivity of PbSe nanocrystal superlattices. We show that for comparable carrier concentrations PbSe nanocrystal superlattices exhibit a substantial thermopower enhancement of several hundred microvolts per Kelvin relative to bulk PbSe. We also find that thermopower increases monotonically as the nanocrystal size decreases due to changes in carrier concentration. Lastly, we demonstrate that thermopower of PbSe nanocrystal solids can be tailored by charge-transfer doping.
Authors:
Robert Y Wang; Joseph P Feser; Jong-Soo Lee; Dmitri V Talapin; Rachel Segalman; Arun Majumdar
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Publication Detail:
Type:  Journal Article     Date:  2008-07-03
Journal Detail:
Title:  Nano letters     Volume:  8     ISSN:  1530-6984     ISO Abbreviation:  Nano Lett.     Publication Date:  2008 Aug 
Date Detail:
Created Date:  2008-08-15     Completed Date:  2008-09-18     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101088070     Medline TA:  Nano Lett     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2283-8     Citation Subset:  -    
Affiliation:
Department of Mechanical Engineering, University of California, Berkeley, California 94720, USA.
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