Crystal Structure and Luminescent Properties of Green Phosphor Ba3Y2(SiO4)3:Eu2+ for LED Applications
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We have developed a new silicate-based phosphor Ba<SUB>3</SUB>Y<SUB>2</SUB>(SiO<SUB>4</SUB>)<SUB>3</SUB>:Eu<SUP>2+</SUP> without using expensive raw materials. The host crystal structure was firstly indexed as an orthorhombic-type instead of garnet-type. The phosphor absorbs near-ultraviolet light around 365 nm and emits green light with a peak at about 505 nm, which results from the 5d–4f transition of the Eu<SUP>2+</SUP>. The optimum concentration of Eu<SUP>2+</SUP> activator is 4 mol % relative to the Ba<SUP>2+</SUP> content in the Ba<SUB>3</SUB>Y<SUB>2</SUB>(SiO<SUB>4</SUB>)<SUB>3</SUB> host. It is a promising candidate for application in LEDs as a green-emitting color converter.
- 公益社団法人 日本化学会の論文
公益社団法人 日本化学会 | 論文
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