铕掺杂的Al2O3-La2O3-SiO2玻璃发出的蓝白红发光。

Cyan-white-red luminescence from europium doped Al2O3-La2O3-SiO2 glasses.

作者信息

Yang Hucheng, Lakshminarayana G, Zhou Shifeng, Teng Yu, Qiu Jianrong

机构信息

State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027, China.

出版信息

Opt Express. 2008 Apr 28;16(9):6731-5. doi: 10.1364/oe.16.006731.

DOI:10.1364/oe.16.006731

PMID:18545375

Abstract

Aluminum-lanthanum-silicate glasses with different Eu doping concentration have been synthesized by conventional melt-quenching method at 1680 degrees C in reductive atmosphere. Under 395nm excitation, samples with low Eu doping concentration show mainly the cyan broad emission at 460nm due to 4f(6)5d(1)-4f(7) transition of Eu(2+); and the samples with higher Eu doping concentration show mainly some narrow emissions with maximum at 616nm due to (5)D(0)-(7)F(j) (J=0, 1, 2, 3, 4) transitions of Eu(3+). Cyan-white-red tunable luminescence under 395nm excitation has been obtained by changing the Eu doping concentration.

摘要

采用传统熔体淬火法，在1680℃的还原气氛中合成了不同铕掺杂浓度的铝镧硅酸盐玻璃。在395nm激发下，低铕掺杂浓度的样品主要由于Eu(2+)的4f(6)5d(1)-4f(7)跃迁而在460nm处呈现蓝绿色宽发射；而高铕掺杂浓度的样品主要由于Eu(3+)的(5)D(0)-(7)F(j)（J = 0, 1, 2, 3, 4）跃迁而在616nm处呈现一些窄发射峰。通过改变铕掺杂浓度，在395nm激发下获得了蓝白红可调谐发光。