BPO4@B2O3 and (BPO4@B2O3):Eu3+: The novel single-emitting-component phosphors for near UV-white LEDs

Abstract Nowadays much effort has been devoted to exploring novel luminescent materials with low-cost, high stability and excellent luminescent properties. In this paper, a new kind of luminescent material BPO 4 @B 2 O 3 was prepared by using a facile method. The as-obtained samples contain numerous BPO 4 nanoparticles enclosed by amorphous and crystalline B 2 O 3 homogeneously, which exhibits a broad emission band ranging from 380 to 700 nm under near-UV irradiation. More importantly, it is worth noting that the BPO 4 @B 2 O 3 phosphor exhibits the excellent thermal quenching property, which endows it with a promising prospect as phosphors for high power white LEDs. To further promote its application as white light phosphors, Eu 3+ ions were doped into the BPO 4 @B 2 O 3 samples and prepared the (BPO 4 @B 2 O 3 ):Eu 3+ phosphors with chromaticity coordinates (0.3022, 0.3122). The corresponding packaging of LEDs indicates that both BPO 4 @B 2 O 3 and (BPO 4 @B 2 O 3 ):Eu 3+ can be considered as the promising phosphors for WLEDs.