“…1), caused by the 5d 1 / 4f 2 ( 2 F 5/2,7/2 ) transitions of Ce 3þ ions, the emission spectra of both YAG:Ce SCs at 300 K consist also of the intrinsic emission bands in the UV range peaked at 305, 372 and 400 nm. By the analogy with the structure of the intrinsic luminescence of undoped YAG SC (Zorenko et al, 2007a), the nature of the mentioned UV bands in YAG:Ce SC can be caused by radiation decay of an exciton localized around Y Al AD (LE(AD) centers), recombination luminescence of Y Al AD with formation of excitons bound with these centers, and the luminescence of F þ centers, perturbed by the nearest Y Al AD (F þ -AD centers) (Pujats and Springis, 2001). Meanwhile, we can not exclude the influence of Ce 3þ ions on formation of the intrinsic emission centers in YAG:Ce SC.…”