The effect of Eu2+ doping concentration on luminescence properties of Sr3B2O6:Eu2+ yellow phosphor

- The concentration quenching mechanism of Sr3B2O6:Eu2+can be interpreted by the dipole-dipole (d-d) interaction of Eu2+ ions.
- The average electronegativity of O2− ions located around Eu2+ ion is 1.9991 eV.
- The optimum concentration of Eu2+ ions in Sr3B2O6 is 7 mol%.
- Sr3B2O6:Eu2+ is a hexagonal crystal structure.