Luminescence and energy transfer properties of Ca8Gd2(PO4)(6)O-2: A (A = Ce3+/Eu2+/Tb3+/Dy3+/Mn2+) phosphors
文献类型：期刊论文
| 作者 | Shang MM ; Geng DL ; Zhang Y ; Li GG ; Yang DM ; Kang XJ ; Lin J |
| 刊名 | journal of materials chemistry
 |
| 出版日期 | 2012 |
| 卷号 | 22期号:36页码:19094-19104 |
| 关键词 | FIELD-EMISSION DISPLAYS LIGHT-EMITTING-DIODES RARE-EARTH TB3+ IONS CE3+ EU2+ MN2+ EXCITATION YELLOW |
| ISSN号 | 0959-9428 |
| 通讯作者 | lin j |
| 中文摘要 | a series of ca8gd2(po4)(6)o-2, (cgpo): a (a = ce3+, eu2+, tb3+, dy3+, mn2+, and their combination), phosphors with the oxyapatite structure have been prepared via a pechini-type sol-gel process. x-ray diffraction (xrd), photoluminescence (pl) spectra, cathodoluminescence (cl) spectra, absolute quantum yield and lifetimes were utilized to characterize the samples. under uv and low voltage electron beam excitation, the ce3+ ion, as a sensitizer, can transfer its energy to other activators (eu2+, tb3+, dy3+, and mn2+) in the cgpo: ce3+, eu2+/tb3+/dy3+/mn2+ system. the energy transfer from ce3+ to eu2+ and tb3+ has been demonstrated to be a resonant type, via a dipole-dipole and dipole-quadrupole mechanism, respectively, and the critical distances are calculated to be 28.70 and 12.60 angstrom, respectively. the absolute quantum yields of the ce3+ and eu2+ coactivated cgpo phosphors are enhanced with respect to those of the eu2+ singly activated samples via energy transfer. under the excitation of a low voltage electron beam, the emitting colors of cgpo: ce3+/tb3+/dy3+/mn2+ samples can be adjusted from blue to green, and from blue to white to yellow-green by control of the contents of ce3+, tb3+, dy3+, and mn2+. the cl properties have been investigated in detail, and the results indicate that the as-prepared ca8gd2(po4)(6)o-2: a (a = ce3+/eu2+/tb3+/dy3+/mn2+) samples have good cl intensity and cie coordinate stability with a wide color-tunable emission. based on the good pl and cl properties and the varied hues of the cgpo host by adjusting the concentration of the activators (ce3+/eu2+/tb3+/dy3+/mn2+), cgpo might be promising as a host material for use in solid-state lighting and display fields. |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000307790300057 |
| 公开日期 | 2013-06-30 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/48459]  |
| 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,Geng DL,Zhang Y,et al. Luminescence and energy transfer properties of Ca8Gd2(PO4)(6)O-2: A (A = Ce3+/Eu2+/Tb3+/Dy3+/Mn2+) phosphors[J]. journal of materials chemistry,2012,22(36):19094-19104. |
| APA | Shang MM.,Geng DL.,Zhang Y.,Li GG.,Yang DM.,...&Lin J.(2012).Luminescence and energy transfer properties of Ca8Gd2(PO4)(6)O-2: A (A = Ce3+/Eu2+/Tb3+/Dy3+/Mn2+) phosphors.journal of materials chemistry,22(36),19094-19104. |
| MLA | Shang MM,et al."Luminescence and energy transfer properties of Ca8Gd2(PO4)(6)O-2: A (A = Ce3+/Eu2+/Tb3+/Dy3+/Mn2+) phosphors".journal of materials chemistry 22.36(2012):19094-19104. |
入库方式： OAI收割
来源：长春应用化学研究所
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