Studies of Microwave Solvothermal Synthesis of the Nanocrystalline Copper and Lanthanum selenide and Its Structure

摘要

Microwave solvothermal technique was used to synthesize nanocrystalline CuLa_3Se_5 This method is employed with much excellence such as celerity, economy, good purity and small granularity. Several techniques including XRD, TEM, EDS and XPS were used to characterize its composition. The mechanism of the formation of nanocrystalline was discussed. UV-Vis indicates that this compound is preferable semiconductor with a band gap of 2.27 eV.