| abstract |
The present invention provides a phosphor that has high luminance, a property of low luminance degradation during PDP driving, and chromaticity y comparable to that of BAM:Eu. The present invention is the phosphor that is represented by the general formula xAO • y 1 EuO • y 2 EuO 3/2 • DO • zSiO 2 • wCaCl 2 wherein A is at least one selected from Sr and Ba, D is at least one selected from Mg and Zn, and 2.970≤x≤3.500, 0.001≤y 1 +y 2 ≤0.030, 1.900≤z≤2.100, and 0.001≤w≤0.100 are satisfied, and that has 50 mol % or less of the divalent Eu ratio (ratio of the divalent Eu element to the total of the Eu elements) in the vicinity of the surface of the phosphor particle. |