ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Large scale and highly ordered thermoelectric BixTe1-x (0.4 ≤ x ≤ 0.7) nanowire arrayswere successfully fabricated by cathodic electrolysis into porous anodic alumina membrane (AAM)templates in aqueous solution. The structure of the nanowires was characterized by X-raydiffraction and selected-area electron diffraction (SAED). Field emission scanning electronmicroscopy (FE-SEM) and transmission electron microscopy (TEM) results show that thenanowires are smooth and uniform with the diameters of about 50 nm and lengths up to tens ofmicrometers. Energy dispersive spectroscopy (EDS) was used to check the exact stoichiometry ofas-prepared samples. The results reveal that the atomic ratio between Bi and Te can be modulatedeffectively by controlling the concentration of the electrolyte solution. The synthesis of high qualityBixTe1-x nanowires with controllable x is significant for optimizing the thermoelectric performance
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/16/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.546-549.2171.pdf
