Journal of Materials Science, Vol.31, No.14, 3647-3649, 1996
Growth and Characterization of Snse2
Tin diselenide single crystals were grown by direct synthesis using the Bridgman technique and were subsequently purified by successive recrystallizations. An X-ray powder diffraction study verified that the crystals obtained belong to the D-3d(3)-
space group with lattice parameters a = 0.3811 nm and c = 0.6137 nm. A stoichiometric analysis gave a maximum deviation of their nominal SnSe2 composition of similar to 4%. Study of their morphology by scanning electron microscopy reveals the layered-type structure of the obtained material. Finally, the microhardness parallel and perpendicular to the layer planes was found to be strongly anisotropic, as expected from the layered structure of SnSe2.
Keywords:TRANSPORT METHOD;CRYSTALS