Abstract
The present work deals with an investigation on synthesis, structure and properties of indium intercalation compounds of tungsten diselenide ; In xWSe 2 (0⩽x⩽1). X-ray analysis shows that these intercalated compounds like the host 2HWSe 2 also possess hexagonal symmetry with a small but continuous increase in c-parameter. However, a new phase appeared in In 2 3 WSe 2 and InWSe 2 diffractograms due to In 2Se 3. Room temperature magnetic susceptibility, thermoelectric power experiments and two-probe conductivity measurements in the temperature range 25 −225°C indicated that intercalated compounds also exhibit n-type semiconducting behaviour similar to the host WSe 2 and results are explained on the basis of existing band model. Thermal stability behaviour of these compound in atmosphere has also been studied and based on X-ray data of oxidized product formation of tungsten bronzes has been proposed.
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