Preparation and characterization of bulk composite constructed of Bi2Te3iO2 nanoparticles

Preparation and characterization of bulk composite constructed of Bi2Te3iO2 nanoparticles

"Bi2Te3 core" - "SiO2 shell" (Bi2Te3iO2) nanoparticles were synthesized by chemical method. Bulk composite based on the nanoparticles synthesized was then sintered. Such a composite can be considered as a system of semiconducting Bi2Te3 grains contacting via tunneling SiO2 bridge...

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Veröffentlicht in:Journal of alloys and compounds 2014-02, Vol.586, p.679-682
Hauptverfasser: Ivanov, Oleg, Maradudina, Oxana, Lyubushkin, Roman
Format: Artikel
Sprache:eng
Schlagworte:
Alloys
Bridges (electric)
Electric bridges
Electrical resistivity
Nanoparticles
Shells
Silicon dioxide
Temperature dependence
Tunneling
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Beschreibung
Zusammenfassung:"Bi2Te3 core" - "SiO2 shell" (Bi2Te3iO2) nanoparticles were synthesized by chemical method. Bulk composite based on the nanoparticles synthesized was then sintered. Such a composite can be considered as a system of semiconducting Bi2Te3 grains contacting via tunneling SiO2 bridges. It was found that temperature dependence of specific electrical resistivity of the composite under study can be described by tunneling mechanism of charge carriers.
ISSN:0925-8388
DOI:10.1016/j.jallcom.2013.10.090