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材料导报  2020, Vol. 34 Issue (14): 14023-14026    https://doi.org/10.11896/cldb.19050130
  无机非金属及其复合材料 |
近紫外白光LED用Ba3Y1-x-yB3O9xEu3+,yBi3+高效红色荧光粉的制备与发光性能
温慧霞, 樊彬, 李红喜, 许成功, 王玉莹, 赵文玉
内蒙古科技大学化学与化工学院, 包头 014010
Preparation and Luminescence Properties of Ba3Y1-x-yB3O9xEu3+,yBi3+ High-efficiency Red Phosphors for Near-UV White LEDs
WEN Huixia, FAN Bin, LI Hongxi, XU Chenggong, WANG Yuying, ZHAO Wenyu
School of Chemistry and Chemical Engineering, Inner Mongolia University of Science and Technology, Baotou 014010, China
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摘要 采用传统高温固相法在较低温度下制备Eu3+/Bi3+共掺杂Ba3YB3O9红色荧光粉,利用XRD仪和荧光光谱仪对样品Ba3Y1-x-yB3O9xEu3+,yBi3+的晶体结构和发光性质进行了表征。XRD结果表明,Ba3Y1-x-yB3O9xEu3+,yBi3+为纯相晶体。激发和发射光谱表明,样品可以被近紫外350~420 nm波段激发,最强激发峰位于393 nm,发射光谱呈现出Eu3+的特征峰,谱带峰值位置在593 nm、613 nm,分别对应5D0-7F15D0-7F2特征跃迁。最强发射对应的掺杂浓度是0.12 mol。Ba3Y0.87B3O9∶0.12Eu3+,0.01Bi3+的CIE坐标为(0.643,0.356)时最接近标准红色坐标,获得极佳的演色性。样品Ba3Y1-x-yB3O9xEu3+,yBi3+可以用作近紫外激发三基色白光LED的红色荧光粉。
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温慧霞
樊彬
李红喜
许成功
王玉莹
赵文玉
关键词:  红色荧光粉  Eu3+掺杂  高温固相法  白光LED    
Abstract: The Eu3+/Bi3+ ion co-doped Ba3YB3O9 red phosphor was prepared by the traditional high temperature solid phase method at low temperature. The crystal structure and luminescence properties of the samples Ba3Y1-x-yB3O9xEu3+,yBi3+ were characterized by XRD and the fluorescence spectrometer. XRD results illustrated that Ba3Y1-x-yB3O9xEu3+,yBi3+ were pure phase crystals. The excitation and emission spectra showed that the sample could be excited by the near-ultraviolet 350—420 nm band. The strongest excitation peak was located at 393 nm. The emission spectrum showed the characteristic peak of Eu3+. The peak position of the band was at 593 nm and 613 nm, corresponding to5D0-7F1, 5D0-7F2 feature transition. The doping concentration corresponding to the strongest emission was 0.12 mol. The CIE coordinate of the concentration of Ba3Y0.87B3O9∶0.12Eu3+, 0.01Bi3+is (0.643, 0.356) which was closest to red, and excellent color rendering was obtained. The sample Ba3Y1-x-yB3O9xEu3+,yBi3+ phosphor was red phosphor for near-ultraviolet excitation trichromatic white LED with potential application.
Key words:  red phosphor    Eu3+ doping    high temperature solid state method    W-LEDs
               出版日期:  2020-07-25      发布日期:  2020-07-14
ZTFLH:  O482.31  
基金资助: 内蒙古自然科学基金(2018MS02002)
作者简介:  温慧霞,女,内蒙古科技大学化学与化工学院硕士研究生。主要研究光学材料制备与性能。
赵文玉,博士,硕士研究生导师,内蒙古科技大学化学与化工学院副教授。曾任中国台湾长庚大学可靠度科学技术研究中心博士后研究员(02/2016—02/2017),从事光学材料制备与性能及其老化机理研究。在国内外重要期刊发表文章20多篇,申报发明专利2项。
引用本文:    
温慧霞, 樊彬, 李红喜, 许成功, 王玉莹, 赵文玉. 近紫外白光LED用Ba3Y1-x-yB3O9xEu3+,yBi3+高效红色荧光粉的制备与发光性能[J]. 材料导报, 2020, 34(14): 14023-14026.
WEN Huixia, FAN Bin, LI Hongxi, XU Chenggong, WANG Yuying, ZHAO Wenyu. Preparation and Luminescence Properties of Ba3Y1-x-yB3O9xEu3+,yBi3+ High-efficiency Red Phosphors for Near-UV White LEDs. Materials Reports, 2020, 34(14): 14023-14026.
链接本文:  
http://www.mater-rep.com/CN/10.11896/cldb.19050130  或          http://www.mater-rep.com/CN/Y2020/V34/I14/14023
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