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Title: Thermoelectric power of mixed tungsten sulphoselenide single crystals grown by vapour phase technique
Authors: Patel, J B
Parmar, M N
Deshpande, M P
Solanki, G K
Agarwal, M K
Keywords: Vapour phase technique
Single crystals
Thermoelectric power
Tungsten sulphoselenide
Issue Date: Jul-2005
Publisher: CSIR
Series/Report no.: G01R 21/08
Abstract: The growth of mixed tungsten sulphoselenide single crystals i.e. WS<i style=""><sub>x</sub></i>Se<sub>2-<i style="">x </i></sub> (0 ≤ <i style="">x </i>≤ 2) grown by vapour phase technique and their characterization by Hall effect and thermoelectric power measurements have been reported. The Hall effect measurement indicates that these crystals are <i style="">p-</i>type in nature, which is very well supported by thermoelectric power measurements. From the temperature dependence of thermoelectric power, the Fermi energy (<i style="">E</i><sub>F</sub>) and the constant (<i style="">A</i>) indicating the nature of scattering process have been obtained for all the samples. The density of states (<i style="">N</i><sub>A</sub>) and effective mass of holes (<i style="">m<sup>*</sup><sub>h</sub></i>), have also been calculated for WS<sub>x</sub>Se<sub>2-x</sub> samples.
Description: 527-531
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Appears in Collections:IJPAP Vol.43(07) [July 2005]

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