Eu2+-doped Sr5(PO4)3Br blue-emitting phosphor with high color purity for near-UV-pumped white light-emitting diodes

The electroluminescence spectrum of an InGaN-based near-UV LED chip (395 nm) comprising a mixture of blue-emitting Sr5(PO4)3Br:Eu2+, green-emitting (Sr, Ba)2SiO4:Eu2+ and red-emitting Ca2Si5N8:Eu2+ phosphors green-emitting. The inset is the digital photo of LED prototype.147