Controlled synthesis and structural characterization of polycrystalline GaSe

A comprehensive study on the synthesis and characterization of gallium selenide (GaSe) has been reported in this paper. Synthesis of gallium selenide (GaSe) from component elements has been carried out in a specially designed and fabricated quartz ampoule, with the help of a rocking furnace. X-ray diffractometry study revealed crystalline GaSe samples belonging to hexagonal system. Raman spectral study emphasized three sharp lines at 208.89, 253.95, and 306.52 cm(-1), in good agreement with X-ray diffraction results. Scanning electron microscopy revealed particles of rock like structure, sized in the range 0.4-6 mu m