The effects of binding type on luminescence LED phosphor based on GGG/Ce3+

Abstract Luminescence and reflectance spectra of coatings based on gadolinium gallium garnet doped by cerium (GGG/Ce 3+ ) with silicone resin or potassium liquid glass compound were analyzed depending on concentration. It was established that the maximum emissions of the coatings at 75 wt.% compound concentration have luminescence band at 570 nm and absorption band at 470 nm. Both bands were detected by absorption or emission of cerium ions in gadolinium gallium garnet. Ce 3+ ion transition into Ce 4+ ion was observed upon quantum absorption, and the reverse transition was observed upon quantum emission.