Highly efficient near-UV-excitable Ca2YHf2Al3O12:Ce3+,Tb3+green-emitting garnet phosphors with potential application in high color rendering warm-white LEDs

Novel near-UV-excitable Ca₂YHf₂Al₃O₁₂:Ce³⁺,Tb³⁺green phosphors with a highest internal quantum efficiency of 86.6% and external quantum efficiency of 63.1% were reported for high-CRI warm-white LEDs.