“…Thes ynthesis method and the qualityo ft he material play an importantr ole in the properties of the material for different optoelectronic applications.C u-Sb-Se is av ery efficient and capable optoelectronic material. [16,17] It has been pre-pared by several methods such as direct fusion, [18] solid-state reaction, [19] electrodeposition, [20] spark plasma method, [17,21] solvothermal method, [22] co-precipitation, [23] rapid injection, [24] hot injection [25] and microwave-assisted method. [26] Them icrowave-assistedt echnique is ap romising method for the synthesiso fn anocrystalline metal chalcogenidet hin films.T his technique has attracted considerable research attentionb ecause of its advantages,s uch as rapid heating, high reaction rate,l ow energy consumption, high product yield and controlled particle size to yield nanomaterials,a nd it also provides uniform nucleation and growthc onditions for nanomaterials.…”