Photoluminescence characteristics of nanocrystalline $\mathrm{Ba}_{0.97}\mathrm{Ca}_{0.03}\mathrm{SO}_4:\mathrm{Eu}$ by combustion method

Nanocrystalline $\mathrm{Ba}_{0.97}\mathrm{Ca}_{0.03}\mathrm{SO}_4:\mathrm{Eu}$ powder has been prepared by combustion method. XRD shows orthorhombic structure, the lattice parameter values are $a=8.836\mathring{\mathrm{A}}$, $b=5.440\mathring{\mathrm{A}}$, $c=6.859\mathring{\mathrm{A}}$. The nanocrystalline powder $\mathrm{Ba}_{0.97}\mathrm{Ca}_{0.03}\mathrm{SO}_4:\mathrm{Eu}$ having a grain size of $47$ nm, and also FTIR, PL, and three dimensional structure studies of the material and the results are presented in detail.