Electronic structure and photoluminescence properties of yellow-emitting Ca10Na(PO4)(7): Eu2+ phosphor for white light-emitting diodes
文献类型：期刊论文
| 作者 | Yu, Hua1; Deng, Degang2; Li, Yinqun2; Xu, Shiqing2; Li, Yinyan2,3,4; Yu, Cuiping1; Ding, Yanyan1; Lu, Hongwei1; Yin, Haoyong1; Nie, Qiulin1 |
| 刊名 | JOURNAL OF LUMINESCENCE
 |
| 出版日期 | 2013-11-01 |
| 卷号 | 143页码:132-136 |
| 关键词 | Ca10na(Po4)(7):Eu2++++ Yellow-emitting Phosphor Electronic Structure Photoluminescence White Leds |
| ISSN号 | 0022-2313 |
| DOI | 10.1016/j.jlumin.2013.04.036 |
| 英文摘要 | The yellow-emitting Ca10Na(PO4)(7):Eu2+ phosphors were synthesized by conventional high-temperature solid-state reaction method. The phosphors were well characterized by powder X-ray diffraction, FT-IR spectra and diffuse reflectance spectra. DFT calculation results showed that Ca10Na(PO4)(7) had an indirect bandgap with a bandgap energy of about 3.82 eV. Ca10Na(PO4)(7):Eu2+ showed a yellow emission band peaking at 550 nm under 350 nm excitation. The broad emission bandwidth (about 138 nm) of Ca10Na(PO4)(7):Eu2+ is favorable for white LEDs conversion phosphors. The optimal doping concentration of Eu2+ ions in Ca10Na(PO4)(7):Eu2+ phosphor was about 8 mol%. This study demonstrated that the energy transfer among the nearest-neighbor ions was the main mechanism of concentration quenching of Ca10Na(PO4)(7):Eu2+ phosphor. These results indicate that Ca10Na(PO4)(7):Eu2+ may be potentially useful as a UV radiation-converting phosphor for white LEDs. (C) 2013 Published by Elsevier B.V. |
| 语种 | 英语 |
| WOS记录号 | WOS:000323912400024 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/47033]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Xu, Shiqing |
| 作者单位 | 1.Hangzhou Dianzi Univ, Coll Mat & Environm Engn, Hangzhou 310018, Peoples R China 2.China Jiliang Univ, Coll Mat Sci & Engn, Hangzhou 310018, Peoples R China 3.Chinese Acad Sci, Changchun Inst Appl Chem, Key Lab Rare Earth Chem & Phys, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 4.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Electro Analyt Chem, Changchun 130022, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yu, Hua,Deng, Degang,Li, Yinqun,et al. Electronic structure and photoluminescence properties of yellow-emitting Ca10Na(PO4)(7): Eu2+ phosphor for white light-emitting diodes[J]. JOURNAL OF LUMINESCENCE,2013,143:132-136. |
| APA | Yu, Hua.,Deng, Degang.,Li, Yinqun.,Xu, Shiqing.,Li, Yinyan.,...&Nie, Qiulin.(2013).Electronic structure and photoluminescence properties of yellow-emitting Ca10Na(PO4)(7): Eu2+ phosphor for white light-emitting diodes.JOURNAL OF LUMINESCENCE,143,132-136. |
| MLA | Yu, Hua,et al."Electronic structure and photoluminescence properties of yellow-emitting Ca10Na(PO4)(7): Eu2+ phosphor for white light-emitting diodes".JOURNAL OF LUMINESCENCE 143(2013):132-136. |
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来源：化学研究所
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