Concentration quenching of Eu2+ in a thermal-stable yellow phosphor Ca2BO3Cl:Eu2+ for LED application

► Broadband excitable and strong yellow-emitting Ca2BO3Cl: Eu2+ phosphor is obtained by solid state reaction. ► Concentration quenching mechanism of Ca2BO3Cl: Eu2+ is dipole-dipole interaction. ► Quenching temperature (T1/2) of Ca2BO3Cl: Eu2+ is at 200 °C. ► As synthesized material can be used for LED phosphor application.