| Bi掺杂及制备工艺条件对Y_2O_3:Eu~(3+)发光性质的影响 |
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| 引用本文： | 曹帅,马永青,朱五林,尹文俊,杨奎,郑赣鸿,吴明在,孙兆奇.Bi掺杂及制备工艺条件对Y_2O_3:Eu~(3+)发光性质的影响[J].安徽大学学报(自然科学版),2010,34(5). |
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| 作者姓名： | 曹帅 马永青 朱五林 尹文俊 杨奎 郑赣鸿 吴明在 孙兆奇 |
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| 作者单位： | 安徽大学,物理与材料科学学院,安徽,合肥,230039 |
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| 基金项目： | 安徽省高等学校省级自然科学基金重点资助项目，安徽省信息材料与器件重点实验室开放基金资助项目，国家自然科学基金资助项目 |
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| 摘 要： | 通过水热反应成功制备了系列纳米发光材料Y1.95-xB ixEu0.05O3(0≤x≤0.15).B i3+掺杂后,Y2O3:Eu3+在342 nm处产生了一个由B i-O带引起的激发带;此外,Y2O3:Eu3+掺杂2 mol%B i3+后与未掺杂B i3+的Y2O3:Eu3+相比,发光强度增加了约1.33倍,这是由于B i3+充当了敏化剂离子,传输能量给激活剂Eu3+.基于在218、342、469 nm激发波段的Y1.93B i0.02Eu0.05O3发射光谱,发现与敏化剂B i3+相比,Y2O3主晶格更能有效地传输能量给激活剂Eu3+.此外,工艺条件(pH和退火温度)对Y1.93B i0.02Eu0.05O3荧光性质的影响也进行了研究.
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| 关 键 词： | Y2O3:Bi3+ Eu3+ 发光 水热反应 敏化剂 |
The effect of Bi~(3+) doping and processing conditions on the luminescence of Y_2O_3:Eu~(3+) nanopowders via hydrothermal reaction |
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| CAO Shuai,MA Yong-qing,ZHU Wu-lin,YIN Wen-jun,YANG Kui,ZHENG Gan-hong,WU Ming-zai,SUN Zhao-qi.The effect of Bi~(3+) doping and processing conditions on the luminescence of Y_2O_3:Eu~(3+) nanopowders via hydrothermal reaction[J].Journal of Anhui University(Natural Sciences),2010,34(5). |
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| Authors: | CAO Shuai MA Yong-qing ZHU Wu-lin YIN Wen-jun YANG Kui ZHENG Gan-hong WU Ming-zai SUN Zhao-qi |
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| Affiliation: | CAO Shuai,MA Yong-qing,ZHU Wu-lin,YIN Wen-jun,YANG Kui,ZHENG Gan-hong,WU Ming-zai,SUN Zhao-qi(School of Physics , Material Science,Anhui University,Hefei 230039,China) |
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| Abstract: | Bi3+ doped Y2O3:Eu3+ with formula Y1.95-xBixEu0.05O3(0≤x≤0.15) was synthesized by hydrothermal reaction.Doped-Bi3+ results in a new activation band centered at 342 nm due to the extra Bi-O activation,and the luminescence intensity of Y2O3:Eu3+ with addition of 2 mol% Bi3+ was increased by as much as 1.33 times compared with the Bi3+ ions-free Y2O3: Eu3+ sample,which was interpreted that Bi3+,acting as a sensitizer ion,could transfer energy to activator Eu3+.Based on the emission spectra of Y1.93Bi0.02Eu0.05O3 with the excitation wavelengths of 218,342 and 469 nm,it could be suggested that Y2O3 host lattice could more efficiently transfer energy to activator Eu3+ than the sensitizer Bi3+ could do.In addition,the effects of processing conditions,such as the pH and sintering temperature,on the fluorescence properties of the Y1.93Bi0.02Eu0.05O3 also were investigated. |
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| Keywords: | Y2O3:Bi3+ Eu3+ |
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