English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/159571
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Title

High-performance thermoelectric nanocomposites from nanocrystal building blocks

AuthorsIbáñez, Maria; Luo, ZhiShan; Genç, Aziz ; Arbiol, Jordi ; Cabot, Andreu
Issue Date2016
PublisherNature Publishing Group
CitationNature Communications 7: 10766 (2016)
AbstractThe efficient conversion between thermal and electrical energy by means of durable, silent and scalable solid-state thermoelectric devices has been a long standing goal. While nanocrystalline materials have already led to substantially higher thermoelectric efficiencies, further improvements are expected to arise from precise chemical engineering of nanoscale building blocks and interfaces. Here we present a simple and versatile bottom-up strategy based on the assembly of colloidal nanocrystals to produce consolidated yet nanostructured thermoelectric materials. In the case study on the PbS-Ag system, Ag nanodomains not only contribute to block phonon propagation, but also provide electrons to the PbS host semiconductor and reduce the PbS intergrain energy barriers for charge transport. Thus, PbS-Ag nanocomposites exhibit reduced thermal conductivities and higher charge carrier concentrations and mobilities than PbS nanomaterial. Such improvements of the material transport properties provide thermoelectric figures of merit up to 1.7 at 850 K.
Descriptionet al.
Publisher version (URL)https://doi.org/10.1038/ncomms10766
URIhttp://hdl.handle.net/10261/159571
Identifiersdoi: 10.1038/ncomms10766
e-issn: 2041-1723
Appears in Collections:(CIN2) Artículos
Files in This Item:
File Description SizeFormat 
builblock.pdf2,16 MBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.