PHOSPHOR, METHOD FOR PRODUICNG PHOSPHOR, PHOSPHOR-CONTAINING COMPOSITION, LIGHT-EMITTING DEVICE, ILLUMINATING DEVICE, AND IMAGE DISPLAY DEVICE

摘要

Disclosed is a yellow-orange phosphor which has high brightness and excellent temperature characteristics and also has high brightness when mixed with a phosphor of a different color. Specifically disclosed is a phosphor containing a crystal phase represented by formula [I], wherein when the color of an object is expressed in the L*a*b* color system, the values of a*, b*, and (a*2+b*2)1/2 satisfy the relationships: -20=a*=-2, 71= b*, and 71=(a*2+b*2)1/2, respectively. R3-x-y-z+w2MzA1.5x+y-w2Si6-w1-w2Alw1+w2Oy+w1N11-y-w1 [I]