The mechanism of enhanced luminescence in ion-codoped Lu2SiO5:Ce3+ phosphors

Enhanced luminescence performance of CaO:Ce3+,Li+,F− phosphor and its phosphor-in-glass based high-power warm LED properties

“…Inevitably, Ce ions in different states of valence have been maintained during the doping process in consideration of XPS spectra of Ce3d in Figure S3. 39 According to the previous literature reported by Liu et al, 40 Figure 4B). As for the increase of PL intensity in COCLF-6 compared to COCL-7, we assume that the introduction of Fwould makes the distance between activator Ce 3+ shorter and results in the decrease of critical quenching concentration of Ce 3+ , reducing the PL intensity.…”