Synthesis and spectral investigations of Cu(II) ion-doped NaCaAlPO4 F3 phosphor.
Cu(II) ion-doped NaCaAlPO(4)F(3) phosphor has been synthesized using a solid state reaction method. The prepared sample is characterized by powder X-ray diffraction, scanning electron microscope, optical absorption, electron paramagnetic resonance photoluminescence and Fourier transform infrared spectroscopy techniques. The crystallite size evaluated from x-ray diffraction data is in nanometers. Scanning electron microscopy micrographs showed the presence of several irregular shaped particles. From optical absorption and electron paramagnetic resonance spectral data the doped Cu(II) ions are ascribed to distorted octahedral site symmetry. The synthesized phosphor exhibits emission bands in ultraviolet, blue and green regions under the excitation wavelength of 335 nm. The CIE chromaticity coordinates (x = 0.159, y = 0.204) also calculated for the prepared sample from the emission spectrum. The Fourier transform infrared spectroscopy spectrum revealed the characteristic vibrational bands of the prepared phosphor material.
Department of Physics, Acharya Nagarjuna University, Nagarjuna Nagar, 522510, India.
V Pushpa
VP
Manjari
Ch Rama
ChR
Krishna
Ch Venkata
ChV
Reddy
R V S S N
RV
Ravikumar
D060326:Chemistry Techniques, Synthetic; D056831:Coordination Complexes / Q000138:chemical synthesis*; D003300:Copper / Q000737:chemistry*; D004578:Electron Spin Resonance Spectroscopy; D005290:Ferric Compounds / Q000737:chemistry*; D049449:Luminescence; D008855:Microscopy, Electron, Scanning; D011208:Powders; D017550:Spectroscopy, Fourier Transform Infrared; D014961:X-Ray Diffraction
D056831:Coordination Complexes; D005290:Ferric Compounds; D011208:Powders; D003300:Copper
Cu(II) ions; NaCaAlPO4F3 phosphor; bonding parameters; crystal field parameters; electron paramagnetic resonance; optical absorption