DocumentCode :
2014472
Title :
FTIR Reflectivity spectra of Thermoelectric K2Sb8Se13 crystals
Author :
Hatzikraniotis, E. ; Hassapis, Th. ; Kyratsi, Th. ; Paraskevopoulos, K.M. ; Kanatzidis, M.G.
Author_Institution :
Dept. of Phys., Aristotle Univ. of Thessaloniki
fYear :
2006
fDate :
6-10 Aug. 2006
Firstpage :
573
Lastpage :
578
Abstract :
Investigations of ternary and quaternary compounds, Bi and Sb chalcogenides, have shown that several multinary compounds containing alkali metals present promising thermoelectric properties. In this work, the FTIR reflectivity spectra of K2Sb8Se13 crystals are reported and analyzed for the first time. Optical investigations are conducted with or without polarization, in two directions, parallel and perpendicular to the needles. The observed distinct optical anisotropy investigated by means of polarization dependent reflectivity measurements is discussed with respect to the strong structural anisotropy
Keywords :
Fourier transform spectra; anisotropic media; antimony compounds; crystal structure; infrared spectra; potassium compounds; reflectivity; selenium compounds; FTIR reflectivity spectra; Fourier transform-infrared spectra; K2Sb8Se13; optical anisotropy; polarization dependent reflectivity measurements; structural anisotropy; thermoelectric crystals; Anisotropic magnetoresistance; Crystals; Geometrical optics; Needles; Optical polarization; Phonons; Reflectivity; Tellurium; Thermal conductivity; Thermoelectricity;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Thermoelectrics, 2006. ICT '06. 25th International Conference on
Conference_Location :
Vienna
ISSN :
1094-2734
Print_ISBN :
1-4244-0811-3
Electronic_ISBN :
1094-2734
Type :
conf
DOI :
10.1109/ICT.2006.331379
Filename :
4133358
Link To Document :
https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=2014472
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