Fig. 3
From: Study of energy transfer mechanism from ZnO nanocrystals to Eu3+ ions
PL spectra and 614 nm red emission intensity from the Eu3+ x :(ZnO-nc:SiO2) samples. a 614 nm red emission intensity from the Eu3+ x :(ZnO-nc:SiO2) samples as a function of Eu3+ ion concentration at various annealing temperatures. b The PL spectra of the Eu3+ x :(ZnO-nc:SiO2) samples RTP annealed at 450 °C for various Eu3+ ion concentrations. c The PL spectra of the Eu3+ 0.12:(ZnO-nc:SiO2) samples annealed by RTP at various temperatures