Photoluminescence of rare-earth ion (Eu3+, Tm3+, and Er3+)-doped and co-doped ZnNb2O6 for solar cells
Gao Sen-Peia),b), Qian Yan-Nanc), Wang Biao†a),b)
       
CIE chromaticity coordinates of RE-doped and RE-co-doped ZN ceramics.