硅酸盐学报2007，Vol.35Issue(10)：1401-1405,5.
白光LED用稀土离子掺杂硼硅酸盐玻璃的发光性能
PHOTOLUMINESCENCE PROPERTIES OF RARE EARTH ION-DOPED BOROSILICATE GLASSES FOR WHITE LED APPLICATIONS
朱超峰 1杨云霞 1梁晓峦 1袁双龙 1陈国荣1
作者信息
- 1. 华东理大学材料科学与工程学院,超细材料制备与应用教育部重点实验室,上海,200237
- 折叠
摘要
Abstract
Rare earth (Tm, Dy, Tb, Eu) ion mono- and co-doped borosilicate glasses were prepared in ambient atmosphere by melt quenching method. The characteristics of photoluminescence and excitation spectra of the obtained glasses were investigated. The results show that red and blue emission bands corresponding to Eu3+ and Eu2+ co-exist in the Eu ion mono-doped borosilicate glasses,indicating the conversion of Eu3+ to Eu2+ occurs in the glasses. The conversion efficiency is depending on the content of B2O3 and the type of network modifier. In addition, a red shift of the Eu2+ emission peak was observed with increasing ionic radius of alkaline earth cations. Blue, yellow/green and red emission bands were observed in the emission spectra of Eu/Dy and Tm/Tb/Eu co-doped borosilicate glasses. The combination of these emission bands allows the realization of white light when the glass is excited by ultraviolet light. Moreover, the relative emission intensity ratios of these emission peaks could be adjusted by changing the composition of glasses. This indicates that the obtained rare earth ions co-doped borosilicate glasses are potential fluorescent materials for developing white-light emitting diode devices.关键词
硼硅酸盐玻璃/稀土离子/发光性质/白光发光二极管Key words
borosilicate glass/ rare earth ions/ luminescence properties/ white-light emitting diode分类
化学化工引用本文复制引用
朱超峰,杨云霞,梁晓峦,袁双龙,陈国荣..白光LED用稀土离子掺杂硼硅酸盐玻璃的发光性能[J].硅酸盐学报,2007,35(10):1401-1405,5.
