Quenching of Orange-Red Ce~(3+) Emission in Garnet Phosphors

摘要

Ce~(3+)-doped aluminate garnets are the main phosphors used in solid-state lighting based on blue light emitting diodes (LEDs). Recently, different compositional modifications of garnet hosts have been shown to significantly redshift the yellow-green Ce~(3+) emission in the garnets. We investigate the high temperature quenching of these phosphors to determine any limitations towards red emission in Ce~(3+)-doped garnets.