Communication—Thermal Quenching Behavior of the Green Emitting CaSc2O4:Ce3+Phosphor for LED Application

The temperature-dependent luminescence characteristic of CaSc2O4:Ce3+ phosphor has been investigated. Huang-Rhys coupling factor, Stokes shift, activation energy, and quenching temperature of CaSc2O4:Ce3+ phosphor was determined. The quenching mechanism of CaSc2O4:Ce3+ phosphor was also studied. Finally, the bluish green LEDs were fabricated with blue InGaN chip and this phosphor. It is believed that CaSc2O4:Ce3+ is an excellent green phosphor for blue InGaN chip-based white LEDs.