| Luminescence properties of red phosphors Ca_（10）Li（PO_4）_7：Eu~（3＋） |
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| 引用本文： | 宋恩海,赵韦人,周国雄,豆喜华,易春雨,周民康.Luminescence properties of red phosphors Ca_（10）Li（PO_4）_7：Eu~（3＋）[J].中国稀土学报(英文版),2011,29(5):440-443. |
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| 作者姓名： | 宋恩海 赵韦人 周国雄 豆喜华 易春雨 周民康 |
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| 作者单位： | School of Physics & Optoelectronic Engineering;Guangdong University of Technology;Huizhou Unihero Semiconductor Lighting Technology Co.;Ltd.; |
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| 基金项目： | Project supported by 2009 National Technical Innovation Fund for Mid and Small Size Enterprise of China (09C26214405227); 2009 Huizhou Science and Technology Project of China (2009B010004008) |
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| 摘 要： | A series of red phosphors Ca10Li (PO4)7:Eu3+ were synthesized by high temperature solid-state reaction method. Their luminescence properties were characterized by means of photoluminescence excitation and emission spectra,CIE chromaticity and quantum efficiency. Results indicated that the phosphors could be effectively excited by the near ultraviolet (NUV) light (393 nm). The main emission peaks of the phosphor were ascribed to the transition 5D0-7F2 (613 and 617 nm) of Eu3+ ion when samples were excited by...
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| 关 键 词： | Eu 量子效率 白光LED CIE 光性能 色度 |
| 收稿时间： | 13 September 2010 |
Luminescence properties of red phosphors Ca_(10)Li(PO_4)_7:Eu~(3+) |
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| SONG Enhai,ZHAO Weiren,ZHOU Guoxiong,DOU Xihua ,YI Chunyu ,ZHOU Minkang.Luminescence properties of red phosphors Ca_(10)Li(PO_4)_7:Eu~(3+)[J].Journal of Rare Earths,2011,29(5):440-443. |
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| Authors: | SONG Enhai ZHAO Weiren ZHOU Guoxiong DOU Xihua YI Chunyu ZHOU Minkang |
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| Affiliation: | SONG Enhai1,ZHAO Weiren1,ZHOU Guoxiong1,DOU Xihua 1,YI Chunyu 2,ZHOU Minkang 2 (1. School of Physics & Optoelectronic Engineering,Guangdong University of Technology,Guangzhou 510006,China,2. Huizhou Unihero Semiconductor Lighting Technology Co.,Ltd.,Huizhou 516006,China) |
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| Abstract: | A series of red phosphors Ca10Li(PO4)7:Eu3+ were synthesized by high temperature solid-state reaction method. Their luminescence properties were characterized by means of photoluminescence excitation and emission spectra, CIE chromaticity and quantum efficiency. Results indicated that the phosphors could be effectively excited by the near ultraviolet (NUV) light (393 nm). The main emission peaks of the phosphor were ascribed to the transition 5D0-7F2 (613 and 617 nm) of Eu3+ ion when samples were excited by 393 nm. The CIE chromaticity (x, y) of Ca9.9Li (PO4)7:0.10Eu3+ was x=0.638, y=0.361 and the quantum efficiency of this phosphor was 75% excited by 393 nm. Therefore, this phosphor could be a promising red component for the applications in white LEDs. |
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| Keywords: | Ca10Li(PO4)7:Eu3 LED red phosphor rare earths |
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