Comparative Studies of the Photoluminescence Properties of the Metal Ions Co-doped with the Rare Earth Ions (Bi3+, Eu3+; Bi3+, Tb3+; Bi3+, Tb3+, Eu3+ and Pb2+, Eu3+) in the Silicate Based Single Phosphors for White Light Emitting Diode Applications. - Sugumar P; Balakrishnan P (Journal of fluorescence, 2026)