Abstract: A green phosphor for a Plasma Display Panel (PDP) includes a phosphor material selected from the group consisting of Zn2SiO4:Mn, (Zn,A)2SiO4:Mn (A is an alkaline earth metal), (Ba,Sr,Mg)O.aAl2O3:Mn (a is an integer in the range of 1 to 23), MgAlxOy:Mn (x is an integer in the range of 1 to 10, and y is an integer in the range of 1 to 30), LaMgAlxOy:Tb (x is an integer in the range of 1 to 14, and y is an integer in the range of 8 to 47), and ReBO3:Tb (Re is a rare earth element selected from the group consisting of Sc, Y, La, Ce, and Gd); and an oxide material coated on the surface of the phosphor material and including La2O3 and SiO2, wherein the La2O3 is present in an amount of less than 2500 ppm on the basis of the total amount of the phosphor material.