Wet Chemical Preparation of Nanoparticles ZnO:Eu³⁺ and ZnO:Tb³⁺ with Enhanced Photoluminescence

Figure 7

Photoluminescent excitation of ZnO:Tb³⁺ 5% monitored at 542 nm (a) and photoluminescent spectrum of ZnO:Tb³⁺ 5%, excitation at 374 nm (b).

(a)

(b)