Mixed alkali effect in Mn2+ doped 20ZnO + xLi2O + (30 − x)K2O + 50B2O3(5 ⩽ x ⩽ 25) glasses

► Various physical and structural parameters are evaluated and correlated. ► The phenomenon of MAE is established. ► Bandgap and Urbach energies are evaluated. ► Mn2+ ions occupied in distorted octahedral site symmetry.