Luminescent characteristics of LiSrBO_3:M (M = Eu~(3+), Sm~(3+), Tb~(3+), Ce~(3+), Dy~(3+)) phosphor for white light-emitting diode

摘要

LiSrBO_3:M (M = Eu~(3+), Sm~(3+), Tb~(3+), Ce~(3+), Dy~(3+)) phosphors which have been developed for white light-emitting diodes (LEDs) were synthesized by a normal solid-state reaction. The emission and excitation spectra indicate that these phosphors can be effectively excited by near-ultraviolet light-emitting diodes (UVLED), and exhibit satisfactory red, green and blue performances, respectively, nicely fitting in with the widely applied UV chip. Under the condition of doping charge compensation Li~+, Na~+ and K~+, the luminescence intensities of these phosphors were increased.