Blue Emitting Ca8La2(PO4)(6)O-2:Ce3+/Eu2+ Phosphors with High Color Purity and Brightness for White LED: Soft-Chemical Synthesis, Luminescence, and Energy Transfer Properties
文献类型：期刊论文
| 作者 | Shang MM ; Li GG ; Geng DL ; Yang DM ; Kang XJ ; Zhang Y ; Lian HZ ; Lin J |
| 刊名 | journal of physical chemistry c
 |
| 出版日期 | 2012 |
| 卷号 | 116期号:18页码:10222-10231 |
| 关键词 | TUNABLE PHOSPHOR SINGLE-CRYSTALS UV LEDS DIODES EMISSION CE3+ EU2+ EXCITATION IONS TB3+ |
| ISSN号 | 1932-7447 |
| 通讯作者 | lin j |
| 中文摘要 | ce3+ and/or eu2+ activated ca8la2(po4)(6)o-2 (clpa) oxyapatite blue phosphors have been prepared via a pechini-type sol-gel process. x-ray diffraction (xrd), photoluminescence (pl) spectra, absolute quantum yield, as well as lifetimes were utilized to characterize samples. the emission of ce3+ and eu2+ ions at different lattice sites has been identified and discussed. the clpa:0.04ce(3+) phosphor exhibits bright blue emission with higher quantum yield (67%) and excellent cie coordinates (x = 0.160, y = 0.115) under uv excitation, and the clpa:0.05eu(2+) phosphor also exhibits blue emission with cie coordinates (0.187, 0.164). the energy transfer from ce3+ to eu2+ in clpa:ce3+/eu2+ phosphors has been validated and demonstrated to be a resonant type via a dipole-dipole mechanism. the critical distance (r,) of ce3+ to eu2+ ions in clpa was calculated (by the spectral overlap method) to be 26.67 angstrom. the quantum yields of ce3+ and eu2+ coactivated clpa phosphors are enhanced compared with that of eu2+ activated samples due to energy transfer. the cie coordinates of clpa:0.04ce(3+), 0.02eu(2+) are (0.179, 0.169). the corresponding luminescence and energy transfer mechanisms have been proposed in detail. these blue phosphors might be promising for use in pc-white leds. |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000303848600046 |
| 公开日期 | 2013-05-20 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/48171]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Shang MM,Li GG,Geng DL,et al. Blue Emitting Ca8La2(PO4)(6)O-2:Ce3+/Eu2+ Phosphors with High Color Purity and Brightness for White LED: Soft-Chemical Synthesis, Luminescence, and Energy Transfer Properties[J]. journal of physical chemistry c,2012,116(18):10222-10231. |
| APA | Shang MM.,Li GG.,Geng DL.,Yang DM.,Kang XJ.,...&Lin J.(2012).Blue Emitting Ca8La2(PO4)(6)O-2:Ce3+/Eu2+ Phosphors with High Color Purity and Brightness for White LED: Soft-Chemical Synthesis, Luminescence, and Energy Transfer Properties.journal of physical chemistry c,116(18),10222-10231. |
| MLA | Shang MM,et al."Blue Emitting Ca8La2(PO4)(6)O-2:Ce3+/Eu2+ Phosphors with High Color Purity and Brightness for White LED: Soft-Chemical Synthesis, Luminescence, and Energy Transfer Properties".journal of physical chemistry c 116.18(2012):10222-10231. |
入库方式： OAI收割
来源：长春应用化学研究所
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