The enhancement of luminescence in Co-doped cubic Eu2O3 using Li+ and Al3+ ions

► The enhancement of luminescence of cubic Eu2O3 by co-doping it with Li+ and Al3+. ► The integrated emission intensity increased by 6.7 times after the co-doping. ► The lifetime of PL decay remained at 94.3-95.2μs regardless of the co-doping. ► solubility limit of the co-dopant lies in the range of 0.08