Si3N4和BN对铕掺杂硼硅酸盐玻璃发光性能的影响
The Effect of Si3N4 and BN on the Luminescent Properties of Europium-Doped Borosilicate Glass
崔久治 1孙心瑗 2陈润川 2杜文浩 1肖晓东 1吴妙春 2李秀英 1肖卓豪1
作者信息
- 1. 景德镇陶瓷大学材料科学与工程学院,景德镇 333403
- 2. 井冈山大学数理学院,吉安 343009
- 折叠
摘要
铕离子在自然界中通常以Eu3+存在,然而,铕离子单掺发光材料只有当Eu2+和Eu3+以合适浓度共存时才能实现白光发射.在还原气氛中制备铕掺杂硼硅酸盐玻璃时,很容易使得Eu3+全部还原为Eu2+,因而很难获得Eu2+和Eu3+共存的发光材料.在空气氛围的烧成条件下对比研究了还原剂Si3N4和BN对铕掺杂硼硅酸盐玻璃发光性能的影响.结果表明,Si3N4和BN都能够在空气氛围下实现硼硅酸盐玻璃中铕离子的部分还原,且Si3N4的还原能力比BN更强.当Si3N4替代达到5 mol％,铕掺杂硼硅酸盐玻璃样品中Eu2+浓度占优势,其CIE坐标为(x=0.29,y=0.34),表明以Si3N4还原铕掺杂硼硅酸盐玻璃在白光照明用荧光材料领域具有显著的应用潜力.
Abstract
Europium ions are commonly found in nature as Eu3+ ;however,luminescent materials doped with europium ions can only achieve white light emission when Eu2+ and Eu3+ coexist at appropriate concentrations.During the preparation of europium-doped borosilicate glass in a reducing atmosphere,it is challenging to obtain luminescent materials with the coexistence of Eu2+ and Eu3+ ions,as Eu3+ ions tend to be completely reduced to Eu2+ .This study compared the effects of reducing agents Si3N4 and BN on the luminescent properties of europium-doped borosilicate glass under firing conditions in air atmosphere.The results showed that both Si3N4 and BN could partially reduce the europium ions in borosilicate glass under air atmosphere,with Si3N4 exhibiting stronger reducing ability than BN.When the substitution of Si3N4 reaches 5 mol％,the Eu2+ concentration dominates in the europium-doped borosilicate glass samples,with CIE coordinates of(x=0.29,y=0.34),indicating the significant potential applications of Si3N4 reduced europium-doped borosilicate glasses as fluorescent materials in the field of white light illumination.
关键词
Si3N4/BN/Eu/硼硅酸盐玻璃/白光Key words
Si3N4/BN/Eu/Borosilicate glass/White light引用本文复制引用
出版年
2024
NETL
NSTL
万方数据