Photoluminescence spectra of boron nitride activated by certain elements

Electronic structure and photoluminescence properties of Eu2+-activated Ca2BN2F

“…It has been found that with Eu 2 + in pure fluorine environment CaF 2 :Eu 2 + shows blue emission at about 425 nm upon UV excitation [24]. Under N/B environment, BN:Eu 2 + shows yellow emission with the maximum emission band at 550-560 nm when excited by 365 nm light [25]. Nanotube BN:Eu 2 + , however, has been found to give blue-green cathode-luminescence at about 490 nm [26].…”

Boron Nitride Nanoparticle Phosphors for Use in Transparent Films for Deep-UV Detection and White Light-Emitting Diodes

“…Among the various phosphors used for white light emission, the host material of nitride-based phosphor is used in ternary or quaternary nitride semiconductors. Although visible light emission has been obtained from GaN, AlN, and Si 3 N 4 doped with RE ions, a binary nitride semiconductor, such as BN or the like, is rarely used as a host material of a light-emitting activator. − Among these, BN with a hexagonal structure is suitable for the host material of inorganic phosphors because of its wide band gap (around 5.2 eV) and its exceptional thermal and chemical stabilities . There has also been reported a case in which white light emission was achieved by adding carbon quantum dots to BN to produce an LED chip by mixing it with polydimethylsiloxane, a silicon-based polymer material, and then a study was published on the luminescence characteristics and thermal quenching .…”