Thermoelectric properties of CuS/Ag{sub 2}S nanocomposites synthesed by modified polyol method

This is the report on successful synthesis of Ag doped CuS nanostructures by modified polyol method. The resulting samples were characterized by powder X-ray diffraction (XRD), energy dispersive X-ray (EDX), atomic force microscopy (AFM) and dynamic light scattering (DLS). Particle size of pure CuS...

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Bibliographic Details
Published in:AIP conference proceedings 2016-05, Vol.1731 (1)
Main Authors: Tarachand, Sharma, Vikash, Ganesan, V., Okram, Gunadhor S.
Format: Article
Language:English
Subjects:
ATOMIC FORCE MICROSCOPY
COPPER SULFIDES
DOPED MATERIALS
LIGHT SCATTERING
NANOCOMPOSITES
NANOPARTICLES
NANOSCIENCE AND NANOTECHNOLOGY
NANOSTRUCTURES
ORTHORHOMBIC LATTICES
PARTICLE SIZE
POWDERS
POWER FACTOR
SILVER SULFIDES
SYNTHESIS
THERMOELECTRIC PROPERTIES
THERMOELECTRICITY
TRANSFORMATIONS
VISIBLE RADIATION
X-RAY DIFFRACTION
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Summary:This is the report on successful synthesis of Ag doped CuS nanostructures by modified polyol method. The resulting samples were characterized by powder X-ray diffraction (XRD), energy dispersive X-ray (EDX), atomic force microscopy (AFM) and dynamic light scattering (DLS). Particle size of pure CuS nanoparticles (NPs) was 17 nm, 38 nm and 97 nm as determined from Scherrer formula, AFM and DLS, respectively. Introduction of Ag led to formation of CuS/Ag{sub 2}S composites. A transition at 55 K in thermopower is ascribed to structural transformation from hexagonal to orthorhombic structure. Further, their thermoelectric properties exhibit remarkable change owing to Ag doping in CuS nanostructures. The power factor improves with increasing Ag content. They reveal that CuS/Ag{sub 2}S nanocomposites are some of the potential candidates for generation of thermoelectricity in future.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.4948045