far-red light-emitting phosphor and a light-emitting device using the same

摘要

PROBLEM TO BE SOLVED: To provide a phosphor excited by the light of a short wavelength side of visible light to emit a far-red light high in emission intensity, and to provide a light emission apparatus using the same.;SOLUTION: There is provided a phosphor shown by the general formula, M¹M²(M³_1-x-yMn_xMg_y)O_4+x/2-y/2 [wherein M¹ is at least one selected from Ca, Sr and Ba of group 2 elements; M² is at least one selected from Sc, Y and Ln (lanthanoid) of group 3 elements; M³ is at least one selected from Al, Ga and In of group 3 elements; 0.001≤x≤0.2; and 0≤y≤0.2].;COPYRIGHT: (C)2014,JPO&INPIT