Structural, Optical and Morphological Studies of TiO2 Incorporated MgZn2(PO4)2 Nanophosphors by Solid-state Reaction
نویسندگان
1 Department of Physics, SVKM’s NMIMS Deemed to be University, Hyderabad-509301, India
2 Mishran Semiconductor Pvt Ltd, Hyderabad-500089, India
3 Department of Physics, Acharya Nagarjuna University, Guntur-522510, India
4 Department of Anatomy, Government Medical College, Ongole-523001, A.P., India
doi
10.22036/pcr.2025.523118.2683چکیده
Ti3+ ions of different concentrations (0.3 & 0.6) doped MgZn2(PO4)2 nanophosphors were synthesized by the solid state reaction method. The synthesized samples were characterized by X-ray diffraction, Field Emission scanning electron microscope (FE-SEM) with Energy dispersive X-ray analysis (EDAX), High-resolution transmission electron microscopy (HR-TEM), Fourier transform infrared spectroscopy (FT-IR), Diffuse reflectance spectroscopy (DRS), and Photoluminescence. In both concentrations, particle sizes were distributed between 15 to 23 nm from XRD analysis. The crystallite structure is monoclinic, and the space group is P21/n. The FE-SEM and HR-TEM micrographs show spherical shapes with different agglomerations. The elemental composition is verified by the EDAX spectrum. The FT-IR spectrum exhibited different vibrational bands corresponding to PO43-, P-O-P, and other modes. DRS analysis, samples exhibit energy band gap values were 3.32 and 3.29 eV for Ti3+ ions of 0.3% and 0.6% respectively. The energy band gap results support DRS data that the doping percentage increases the energy band gap values decreases. The produced sample exhibits peaks at 358, 377, and 405 nm in ultraviolet, at 432 nm in the blue regions of its PL. Photometric parameters such as CCT, CIE chromatic coordinate, and color purity reveal that prepared samples could be used in LED applications.
