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2013 | 11 | 10 | 1599-1605
Tytuł artykułu

Doped Bi2Te3 nano-structured semiconductors obtained by ultrasonically assisted hydrothermal method

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Nanocrystalline powders of doped Bi2Te3, with Ag (S1 sample), Sb (S2 sample), Sn (S3 sample) ions with different morphology and particle size 30–50 nm were prepared by a ultrasonically assisted hydrothermal method in alkaline aqueous solution with different concentration of NaBH4 as reducing agent at 200°C for 3 hours and 80% fill degree of autoclave. The influence of dopants and hydrothermal treatment conditions on the formation features, phase composition, particle size, morphology and properties of the products were investigated by X-ray diffraction, scanning electron microscopy, energy dispersive spectroscopy, atomic force microscopy and electrical measurements. This paper reports a comparative study regarding the dopants influence to the shape and size of nano-structured thermoelectric materials. It was found that hydrothermal processing results in formation of low dimensional dispersion of doped Bi2Te3 nanostructures with desired shape and size and high degree of crystallinity with typical semiconductor behavior. [...]
Wydawca

Czasopismo
Rocznik
Tom
11
Numer
10
Strony
1599-1605
Opis fizyczny
Daty
wydano
2013-10-01
online
2013-07-19
Twórcy
  • Condensed Matter Department, National Institute for Research and Development in Electrochemistry and Condensed Matter, 300254, Timisoara, Romania
  • Condensed Matter Department, National Institute for Research and Development in Electrochemistry and Condensed Matter, 300254, Timisoara, Romania
  • Department of Electricity and Magnetism, Faculty of Physics, West University of Timişoara, Timişoara, Romania
autor
  • Condensed Matter Department, National Institute for Research and Development in Electrochemistry and Condensed Matter, 300254, Timisoara, Romania, psfirloaga@yahoo.com
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Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_2478_s11532-013-0291-7
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