FLUORESCENT MATERIAL, LIGHT-EMITTING DEVICE, AND PLASMA DISPLAY PANEL

摘要

Disclosed is a fluorescent material having high brightness and high color purity. The fluorescent material is represented by general formula: aYO3/2·(3-a)CeO3/2·bAlO3/2·cGaO3/2 (2.80 = a = 2.99, 1.00 = b = 5.00, 0 = c = 4.00, and 4.00 = b+c = 5.00), and has a peak having a peak top of 16.7° to 16.9° inclusive at a diffraction angle 2? in an X-ray diffraction pattern as measured with an X-ray having a wavelength of 0.774 Å.