| M5(PO4)3F (M=Ca, Sr, Ba)中Sm3+的电荷迁移态及Sm3+和Eu3+的电荷迁移能量关系 |
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| 引用本文： | 曾取,梁宏斌,田梓峰,林惠红,苏锵.M5(PO4)3F (M=Ca, Sr, Ba)中Sm3+的电荷迁移态及Sm3+和Eu3+的电荷迁移能量关系[J].无机化学学报,2008,24(3):333-339. |
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| 作者姓名： | 曾取 梁宏斌 田梓峰 林惠红 苏锵 |
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| 作者单位： | 1. 中山大学化学与化学工程学院,广州,510275;阳江职业技术学院,阳江,529566
2. 中山大学化学与化学工程学院,广州,510275 |
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| 基金项目： | 国家自然科学基金
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广东省科技厅科技计划 |
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| 摘 要： | 采用高温固相反应合成了M5-2xSmxNax(PO4)3F(M=Ca,Sr,Ba)荧光体，研究了其在真空紫外-可见光范围的发光特性。发现在Ca5(PO4)3F中Sm3+的电荷迁移带约在191 nm，在Sr5(PO4)3F中约在199 nm，而在Ba5(PO4)3F中约在204 nm,随着被取代碱土离子半径的增大电荷迁移能量逐渐减小。比较了M5(PO4)3F (M=Ca,Sr,Ba)中Sm3+和Eu3+电荷迁移能量的关系。
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| 关 键 词： | Ca5(PO4)3F Sr5(PO4)3F Ba5(PO4)3F Sm3+ 电荷迁移态 |
| 文章编号： | 1001-4861(2008)03-0333-07 |
| 收稿时间： | 2007/11/9 0:00:00 |
| 修稿时间： | 2007年11月9日 |
Charge Transfer States of Sm3+ and Charge Transfer Energy Relationship between Sm3+ and Eu3+ in M5(PO4)3F (M=Ca, Sr, Ba) |
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| ZENG Qu,LIANG Hong-Bin,TIAN Zi-Feng,LIN Hui-Hong and SU Qiang.Charge Transfer States of Sm3+ and Charge Transfer Energy Relationship between Sm3+ and Eu3+ in M5(PO4)3F (M=Ca, Sr, Ba)[J].Chinese Journal of Inorganic Chemistry,2008,24(3):333-339. |
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| Authors: | ZENG Qu LIANG Hong-Bin TIAN Zi-Feng LIN Hui-Hong and SU Qiang |
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| Affiliation: | MOE Laboratory of Bioinorganic and Synthetic Chemistry, State Key Laboratory of Optoelectronic Materials and Technologies, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275;Yangjiang Vocational And Technical College, Yangjiang, Guangdong 529566;MOE Laboratory of Bioinorganic and Synthetic Chemistry, State Key Laboratory of Optoelectronic Materials and Technologies, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275;MOE Laboratory of Bioinorganic and Synthetic Chemistry, State Key Laboratory of Optoelectronic Materials and Technologies, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275;MOE Laboratory of Bioinorganic and Synthetic Chemistry, State Key Laboratory of Optoelectronic Materials and Technologies, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275;MOE Laboratory of Bioinorganic and Synthetic Chemistry, State Key Laboratory of Optoelectronic Materials and Technologies, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275 |
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| Abstract: | The phosphors with general molecular formula M5-2xSmxNax(PO4)3F(M=Ca, Sr, Ba) were prepared by a high-temperature solid state reaction technique. The spectroscopic properties in VUV-Vis (vacuum ultraviolet-Visible)range were investigated. The maxima of CTBs (charge transfer bands) were found to be at about 191 nm for M=Ca, 199 nm for M=Sr, and 204 nm for M=Ba, showing the CT energy decreasing with the increase of the site size. The CT energy difference of Sm3+ and Eu3+ in a specific host lattice M5(PO4)3F (M=Ca, Sr, Ba) was compared. The relationships on the substituted ionic radii and the CT energy of Sm3+ and Eu3+ in M5(PO4)3F(M=Ca, Sr, Ba) are proposed. |
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| Keywords: | Ca5(PO4)3F Sr5(PO4)3F Ba5(PO4)3F Sm3+ CT states |
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