张 萍,蒋春东.橙红色荧光粉YPO4:Gd3+,Eu3+的制备及发光特性[J].稀有金属材料与工程,2018,47(12):3824~3828.[Zhang Ping,Jiang Chun dong.Preparation and Luminescence Properties of Reddish-orange Phosphors YPO4:Gd3+,Eu3+[J].Rare Metal Materials and Engineering,2018,47(12):3824~3828.]
橙红色荧光粉YPO4:Gd3+,Eu3+的制备及发光特性
投稿时间:2017-04-24  修订日期:2017-08-10
中文关键词:  荧光粉  红橙色  Eu 3+离子掺杂  高温固相法  助熔剂
基金项目:
中文摘要:
      采用高温固相法在1100℃下合成了橙红色荧光粉YPO4:Gd3+,Eu3+,研究了Eu3+离子掺杂浓度、碱金属碳酸盐、助熔剂、敏化剂对荧光粉发光性能的影响。XRD检测结果显示:合成荧光粉为单相的YPO4。Eu3+离子较佳掺杂浓度为2.5%,碱金属碳酸盐 Na2CO3能有效提高荧光粉的发光强度。添加助熔剂NH4F可将荧光粉的煅烧合成温度从1100℃降低到800℃,并可促进发光中心进入晶格。Gd3+离子能将吸收的激发能有效传递给发光中心Eu3+离子,提高荧光粉的发光强度。色坐标分析显示,合成YPO4:0.025Eu3+荧光粉色坐标为(0.61,0.39) ,位于橙红光的色坐标范围内。
Preparation and Luminescence Properties of Reddish-orange Phosphors YPO4:Gd3+,Eu3+
英文关键词:phosphors  reddish-orange light  Eu 3+ doping  high temperature solid-state method  fluxes
英文摘要:
      The reddish-orange phosphors YPO4:Gd3+,Eu3+ were synthesized with the high temperature solid-state method at 1100 ℃, and discussions were conducted in respect of the influences of Eu3+ ion doping concentration, alkali carbonate,flux and sensitizers on the luminescence properties of YPO4:Eu3+. XRD analysis shows that the synthesized principal phosphor is of the single phase YPO4. Eu3 + ions have a better doping concentration of 2.5%. Alkali carbonate Na2CO3 can effectively improve the photoluminescence intensity of the phosphor. The addition of flux NH4F can reduce the phosphor calcination temperature from 1100 ℃ to 800 ℃ and facilitate the luminescence center into the crystal lattice. Gd3+ ion can effectively transfer the absorption energy to Eu3+ ions at the luminescent center, enhancing the luminescence intensity of the phosphor. The chromaticity coordinate analysis shows that the chromaticity coordinate of the phosphor YPO4:0.025Eu3+is (0.61,0.39) which locates within the scope of the chromaticity coordinate of the standard reddish-orange point.
作者单位E-mail
张 萍 四川大学 材料科学与工程学院 zhp@scu.edu.cn 
蒋春东 四川大学 材料科学与工程学院  
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