无机材料学报

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Eu3+掺杂的硼酸锶系列荧光体的合成及其发光性能

王海英; 王如骥; 张玥; 李亚栋   

  1. 清华大学化学系 北京 100084
  • 收稿日期:2003-10-27 修回日期:2003-12-22 出版日期:2004-11-20 网络出版日期:2004-11-20

Synthesis and Luminescent Properties of Eu3+ Doped Strontium Borate Phosphors

WANG Hai-Ying; WANG Ru-Ji; ZHANG Yue; LI Ya-Dong   

  1. Chemistry Department of Tsinghua University; Beijin 100084; China
  • Received:2003-10-27 Revised:2003-12-22 Published:2004-11-20 Online:2004-11-20

摘要: 采用溶胶-凝胶法和高温固相反应法合成了Eu3+掺杂的SrB4O7、SrB2O4、Sr2B2O5、Sr3B2O6荧光体.荧光光谱测试结果表明在不同基质中Eu3+的荧光发射是有区别的,Sr2B2O5:Eu3+、Sr3B2O7:Eu3+发射峰在610nm左右的红光区,SrB2O4:Eu3+的发射峰在593nm的橙色区,而SrB4O7:Eu3+则表现出了Eu2+离子的特征峰,产生这种区别主要是由Eu3+所处的配位环境不同造成的.荧光体SrB4O7:Eu3+、SrB2O4:Eu3+、Sr2B2O5:Eu3+、Sr3B2O6:Eu3+的最佳掺杂浓度为2%左右.

关键词: 硼酸锶, 溶胶-凝胶, 荧光特性, 高温固相

Abstract: Eu3+ doped borate phosphors (SrB4O7, SrB2O4, Sr2B2O5, Sr3B2O6) were prepared by solid state reaction and sol-gel technique, respectively. The luminescent results showed that the four kinds of phosphors have different luminescent properties. The Sr2B2O5:Eu3+, Sr3B2O7:Eu3+ phosphors have the red emission at 610nm, the SrB2O4:Eu3+ phosphor has the orange emission at 593nm, however the SrB4O7:Eu3+ phosphor displays the emission peaks of Eu2+ ion, all that result from the different Eu-O coordination environment. The optimal doping concentration of phosphors is 2%.

Key words: strontium borate, luminescent properties, solid state reaction, sol-gel technique

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