Effect of alkali metal ions (Li+, Na+ and K+) on the luminescence properties of CaMgB2O5: Sm3+ nanophosphor

M Manhas, V Kumar, V Sharma… - Nano-Structures & Nano …, 2015 - Elsevier
A series of CaMgB 2 O 5 phosphors co-doped with Sm 3+ and alkali metal ions (Li+, Na+
and K+) were prepared by combustion method. The crystal structure of the phosphors was
investigated by using X-ray diffraction (XRD) after annealing the phosphor at 900° C. The
crystal structure belongs to the monoclinic phase of CaMgB 2 O 5 with space group P21/b.
FTIR spectra shows the absorption bands for various structural units of borate mainly BO 3
triangles and lattice vibrations of Ca–O and Mg–O. The luminescence and spectral …
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