Synthesis and Thermoelectric Properties of low-x Bi{sub 2}Se{sub 3-x}S{sub 3} Series

Journal Article · Thu Jan 21 00:00:00 EST 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3322598· OSTI ID:21371503

Iona, Ch; Kyratsi, Th ^[1]; Hatzikraniotis, E; Paraskevopoulos, K M ^[2]

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1. Department of Mechanical and Manufacturing Engineering, University of Cyprus, 1678 Nicosia (Cyprus)
2. Department of Physics, Aristotle University of Thessaloniki, 54124 Thessaloniki (Greece)

Bi{sub 2}Se{sub 3}-xS{sub x} solid solutions, with low x values, were synthesized from melt. The solid solutions were studied in terms of phase purity using powder X-ray diffraction (PXRD) in order to find the maximum x value for the preservation of the single Bi2Se3-type phase. The lattice parameters were estimated and showed the reduced unit cell with the S incorporation in the lattice. SEM images confirmed the plate-like morphology of the Bi{sub 2}Se{sub 3}-xS{sub x} single-phase members. The thermoelectric properties (Seebeck coefficient and electrical conductivity) as well as IR reflectivity were also studied on members with x<0.4 that were found to form single phase Bi{sub 2}Se{sub 3}-xS{sub x} solid solutions.

• OSTI ID: 21371503
• Journal Information: AIP Conference Proceedings, Vol. 1203, Issue 1; Conference: 7. international conference of the Balkan Physical Union, Alexandroupolis (Greece), 9-13 Sep 2009; Other Information: DOI: 10.1063/1.3322598; (c) 2010 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BISMUTH SELENIDES
CONCENTRATION RATIO
ELECTRIC CONDUCTIVITY
IMPURITIES
LATTICE PARAMETERS
MORPHOLOGY
PLATES
POWDERS
REFLECTIVITY
SCANNING ELECTRON MICROSCOPY
SOLID SOLUTIONS
SYNTHESIS
THERMOELECTRIC PROPERTIES
X-RAY DIFFRACTION
BISMUTH COMPOUNDS
CHALCOGENIDES
COHERENT SCATTERING
DIFFRACTION
DIMENSIONLESS NUMBERS
DISPERSIONS
ELECTRICAL PROPERTIES
ELECTRON MICROSCOPY
HOMOGENEOUS MIXTURES
MICROSCOPY
MIXTURES
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
SCATTERING
SELENIDES
SELENIUM COMPOUNDS
SOLUTIONS
SURFACE PROPERTIES