Bi0.5Na0.5TiO3:Eu3+: An intense blue converting red phosphor

作者：Sun, Haiqin; Zhang, Qiwei^*; Wang, Xusheng; Zhang, Tao

来源：Materials Letters, 2014, 131: 164-166.

DOI：10.1016/j.matlet.2014.05.212

• Ceramics
• Luminescence
• Ferroelectrics

An efficient red-emitting phosphor, Bi0.5Na0.5TiO3:Eu3+, was synthesized by the solid-state reaction. The Bi0.5Na0.5TiO3:Eu3+ phosphor showed a strong red emission corresponding to the D-5(0)-> F-7(2) (618 nm) transition of Eu3+ under blue excitation (464 nm). The emission intensity reached its maximum when Eu3+-doped concentration is 0.25 mol. Furthermore, Bi0.5Na0.5TiO3:0.25Eu(3+) revealed high quantum yield (eta = 0.50) and smaller full width at half-maximum (FWHM) values (5 nm). These results show that Bi0.5Na0.5TiO3:Eu3+ material is a promising red phosphor for application in W-LEDs with blue LEDs chip.

• 出版日期2014-9-15
• 单位同济大学; 内蒙古科技大学