Photoluminescence Properties of Novel Ca3Y2B4O12:Eu3+ and Dy3+ Phosphors for Solid‐State Lighting Prepared by Combustion Method

ABSTRACT In this study, novel Ca 3 Y 2 B 4 O 12 :Eu 3+ and Dy 3+ phosphors were synthesized utilizing a simple and efficient combustion process. The Ca 3 Y 2 B 4 O 12 host orthorhombic phase with high crystallinity formation is confirmed by structural x‐ray diffraction analysis. The Ca 3 Y 2 B 4 O 12 :Eu 3+ phosphors PL study indicated different emission peaks at 595 and 618 nm under 397 nm excitation, whereas Ca 3 Y 2 B 4 O 12 :Dy 3+ phosphors emission peaks displayed blue (485 nm) and yellow (579 nm) under 353 nm excitation. The ideal doping concentration of 0.5 mol% for Eu 3+ and Dy 3+ ions resulted in maximum emission intensity due to reduced concentration quenching effects. The chromaticity coordinates show that the emissions are in the visible spectrum, with high‐purity colors suitable for solid state lighting. The results indicate that novel Ca 3 Y 2 B 4 O 12 :Eu 3+ and Dy 3+ is promising materials for n‐UV emitting phosphors for solid‐state lighting applications.