| 铽含量对硫氧化钇纳米发光材料荧光性能的影响 |
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| 引用本文： | 陈红卫,耿阳.铽含量对硫氧化钇纳米发光材料荧光性能的影响[J].化学研究,2007,18(1):12-15. |
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| 作者姓名： | 陈红卫 耿阳 |
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| 作者单位： | 长春工业大学,生物工程学院,吉林,长春,130012 |
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| 摘 要： | 用燃烧法制备了不同Tb3+掺杂量的Y2O2S:Tb3+纳米发光材料,同时用高温固相法制备了不同Tb3+掺杂量的Y2O2S:Tb3+体相材料,X射线晶体衍射结果表明,制备的纳米材料和体相材料均为单一的Y2O2S相.由Debye-Scherre公式估算得到纳米颗粒的平均粒径大约为10 nm.讨论了纳米材料和体相材料Y2O2S:Tb3+中Tb3+的掺杂浓度对荧光性能的影响.激发光谱表明纳米材料的基质吸收带与体相材料相比向高能端移动了6nm,应用久保理论对此进行了定性的解释.
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| 关 键 词： | 硫氧化钇 铽 纳米材料 燃烧法 蓝移 |
| 文章编号： | 1008-1011（2007）01-0012-04 |
| 收稿时间： | 2006-11-09 |
| 修稿时间： | 2006年11月9日 |
Effect of Tb3+ Content on the Luminescent Property of Y2O2S:Tb3+ Nano-materials |
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| CHEN Hong-wei,GENG Yang.Effect of Tb3+ Content on the Luminescent Property of Y2O2S:Tb3+ Nano-materials[J].Chemical Research,2007,18(1):12-15. |
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| Authors: | CHEN Hong-wei GENG Yang |
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| Abstract: | Nanometer materials Y2O2S:Tb3 with different Tb3 content were prepared by improved combustion synthesis method.Bulk materials were synthesized by traditional high temperature solid state method.X-ray diffraction patterns showed that both the nano and bulk Y2O2S:Tb3 had pure Y2O2S phases.The average size of the nano-material Y2O2S:Tb3 was 10 nm,which was calculated by Debye-Scherre formula.The effects of Tb3 content on luminescent spectra were studied for both the nano and bulk Y2O2S systems.Compared with the bulk sample,the absorption band of the nano-material shifted to high energy end about 6 nm.This phenomenon was explained with Kubo theory. |
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| Keywords: | Y2O2S terbium nano-material combustion method blue shift |
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