Title of article :
Rugby-ball-shaped Na0.5La0.5MoO4:Eu3+ 3D architectures: synthesis, characterization, and their luminescence behavior
Author/Authors :
Krishnan, Rajagopalan Department of Physics - B.S. Abdur Rahman University - Vandalur - Chennai, India , Thirumalai, Jagannathan Department of Physics - B.S. Abdur Rahman University - Vandalur - Chennai, India , Shameem Banu, Ithrees Basha Department of Physics - B.S. Abdur Rahman University - Vandalur - Chennai, India , John Peter, Anthuvan Department of Physics - B.S. Abdur Rahman University - Vandalur - Chennai, India
Abstract :
Three-dimensional self-assembled rugby-ball-shaped microarchitectures of tetragonal Na0.5La0.5MoO4:Eu3+ crystal
structure were synthesized by facile hydrothermal method at 200°C for 8 h using ethylenediaminetetraacetic acid
(EDTA) as surfactant. Structure and morphology of Na0.5La0.5MoO4:Eu3+ were investigated by X-ray diffraction and
scanning electron microscopy. In the hydrothermal process, EDTA not only acts as a chelating reagent to facilitate
the formation of Na0.5La0.5MoO4:Eu3+ but also acts as a surface capping agent to adhere to the newly created
surface and to promote crystal splitting. The molar concentration of EDTA plays an important role and can
effectively tune the size of the particles. Photoluminescence study reveals that hierarchical structures of
Na0.5La0.5MoO4:Eu3+ show a strong emission in the red region under 395-nm UV excitation.
Keywords :
Hydrothermal method , Scheelite tetragonal structure , FTIR , Scanning electron microscope
