Luminescence properties of LiY6O5(BO3)3:Eu3+ /Sm3+ phosphor

作者：Wen, Qing; Xiang, Zhifeng; Gao, Xuejun; Yang, Xiaoliang^*; Xiao, Siguo

来源：Materials Science and Engineering B-Solid State Materials for Advanced Technology, 2015, 197: 82-86.

DOI：10.1016/j.mseb.2015.01.010

• Luminescence
• Energy transfer
• Rare earth ions
• Solid-state reaction
• Phosphor

Eu3+, Sm3+ single-doped and co-doped LiY6O5(BO3)(3) phosphors are prepared by a high-temperature solid-state reaction method. The Eu3+-doped and Sm3+-doped phosphors give bright red emission centered at 613 and 604 nm under 395- and 406-nm excitation, respectively, while the Eu3+, Sm3+ co-doped phosphor just gives Eu3+-characterized emission whether excited by 395 or 406 nm. This indicates that the co-doped Sm3+ ions can broaden the excitation band of the phosphor without changing its color index, which might match better with the near-ultraviolet (NUV) chips in white light-emitting diode (W-LED) application. The Sm3+-concentration-dependent luminescence properties ascribed to the energy transfer between Eu3+ and Sm3+ is discussed.

• 出版日期2015-7
• 单位湘潭大学