Synthesis and Luminescence Properties of a Blue-Emitting Sr3NaLu(PO4)3F∶Eu2+ Phosphor

摘要：

　　A novel blue-emitting Sr3NaLu(PO4)3F∶Eu2+ phosphor for white light-emitting diodes (w-LEDs) have been successfully prepared via the solid-state reaction.The crystal structure and phase of the prepared phosphors were investigated using X-ray diffraction (XRD).The band gap of Sr3NaLu(PO4)3F was estimated to be about 5.79 eV from the diffuse reflection spectrum.The Sr3NaLu(PO4)3F∶0.05Eu2+ phosphor exhibits an intense and broad excitation band ranging from 200 to 450 nm in the near ultraviolet region and produces a bright blue emission band with the CIE chromaticity coordinates of x =0.133 and y =0.148 under the excitation of 365 nm, which were ascribed to the 4f-5d transitions of Eu2+.Moreover, the fluorescence decay curves were also investigated in detail.All the results suggest that Sr3NaLu(PO4)3F∶Eu2+ might be a promising blue-emitting phosphor used in w-LEDs.

关键词： Luminescence Phosphor W-LEDs Optical materials

作者: Zai-fa Yang Deng-hui Xu Xue-dong Gao Jiang-nan Du Jia-yue Sun

作者单位: Beijing Technology and Business University, Beijing 100048, China

会议类型: 国际会议

会议名称: The 2016 China Functional Materials Technology and Industry Forum (2016中国国际功能材料大会暨第九届中国功能材料及其应用学术会议)

会议地点: 重庆

会议语种:英文

页码: 623-627

在线出版日期: 2016-07-25（万方平台首次上网日期，不代表论文的发表时间）