Synthesis and photoluminescent properties of CaMoO_4 nanostructures at room temperature

摘要

CaMoO_4 nanostructures with different morphologies, such as ellipsoid-like, spindle-like, and sphere-like, were successfully synthesized in a simple cationic surfactant-CTAB-microemulsion system at room temperature. The molar ratio (w) of H_2O to CTAB and the concentration of reactants played important roles in the morphological control of CaMoo_4 nanostructures. A possible mechanism was proposed for the selective formation of the different morphologies. The CaMoO_4 nanostructures exhibited excellent photoluminescence properties with the same new green emission peaks at 495 nm.