Luminescent property and energy transfer from Ce to Tb in YAl(BO).

A series of Ce, Tb or Ce/Tb doped YAl(BO) phosphors are synthesized by a high temperature solid-state reaction, and their luminescent properties are investigated. YAl(BO):Ce shows a broad emission band at 422 nm under the 367 nm radiation excitation. YAl(BO):Tb can be efficiently excited by the ultraviolet (UV) light, and produces green emission. The emission intensity of YAl(BO):Tb can be enhanced by adjusting Tb doped content, and reaches the maximum at 0.06 mol Tb. When Ce is codoped, the emission intensity of Tb in YAl(BO) can be enhanced, but the commission international del'eclairage (CIE) chromaticity coordinates of YAl(BO):Tb have almost no change. Moreover, the energy transfer from Ce to Tb in YAl(BO) is studied. [ABSTRACT FROM AUTHOR]