Novel bismuth activated blue-emitting phosphor Ba 2 Y 5 B 5 O 17 :Bi 3+ with strong NUV excitation for WLEDs

In this work, a series of novel non-rare-earth ion activated phosphors Ba 2 Y 5−x B 5 O 17 : x Bi 3+ for white light-emitting diodes (WLEDs) was prepared via the high temperature solid state reaction route.