Ultraviolet light induced white light emission in Ag and Eu3+ co-doped oxyfluoride glasses
Ultraviolet light induced white light emission in Ag and Eu3+ co-doped oxyfluoride glasses
复制标题
Ag 和 Eu3 共掺杂氟玻璃中的紫外光诱导白光发射
DOI：
10.1364/oe.18.018900
复制
发表时间：
2010-08-30
期刊：
影响因子：
3.8
通讯作者：
Li, Fang
中科院分区：
文献类型：
--
作者：
Guo, Hai;Wang, XiaoFeng;Li, Fang
Transparent Ag and Eu3+ co-doped oxyfluoride glasses with composition 50SiO(2)-20Al(2)O(3)-30CaF(2) were prepared by melt-quenching technique. The structural and luminescent properties of glasses, energy transfer mechanism between luminescent centers were systematically investigated. The missing nanoparticles signals in absorption spectra, XRD patterns and TEM images, the additional broad excitation band at 325-375 nm indicate that the broad emission band at 400-700 nm is originated from very small molecule-like, non-plasmonic Ag particles (ML-Ag-particles). A perfect white light emission was realized by combining intense red emission of Eu3+ with broad band emission of ML-Ag-particles. These results suggest that Ag and Eu3+ co-doped oxyfluoride glasses could be potentially applied as white light-emitting phosphors for ultra-violet LED chips. (C) 2010 Optical Society of America
