Polyol-mediated synthesis and photoluminescent properties of ce3+ and/or tb3+-doped lapo4 nanoparticles
文献类型：期刊论文
| 作者 | Wang, ZL; Quan, ZW; Lin, J; Fang, JY |
| 刊名 | Journal of nanoscience and nanotechnology
 |
| 出版日期 | 2005-09-01 |
| 卷号 | 5期号:9页码:1532-1536 |
| 关键词 | Polyol method Nanoparticle Lapo4 Rare-earth ion Photoluminescence |
| ISSN号 | 1533-4880 |
| DOI | 10.1166/jnn.2005.319 |
| 通讯作者 | Lin, j() |
| 英文摘要 | Rare-earth ion (ce3+, tb3+) doped lapo4 nanoparticles were prepared by the polyol method and characterized by x-ray diffraction (xrd), field emission scanning electron microscopy (fe-sem), uv-vis absorption spectroscopy, photoluminescence (pl) spectroscopy, and lifetimes. the results of xrd indicate that the as-prepared nanoparticles are well-crystallized at 160 degrees c and assigned to the monoclinic monazite structure of the lapo4 phase. the obtained lapo4:ce3+, tb3+ nanoparticles are spherical with narrow size distribution and average size of 20 nm. the doped rare-earth ions show their characteristic emission in lapo4 nanoparticles, i.e., ce3+ 5d-4f and tb3+ d-5(4) f-7(j) (j = 6-3) transitions, respectively. the optimum doping concentration for tb3+ in la0.8-xce0.2tbxpo4 nanoparticles is determined to be 15 mol% (x = 0.15). the luminescence decay curves of ce3+ in lapo4:ce3+ and lapo4:ce3+, tb3+ nanoparticles present a single-exponential behavior, and the lifetimes (tau) of ce3+ decrease with increasing tb3+ concentrations (at the constant ce3+ concentration) in lapo4:ce3+, tb3+ nanoparticles due to the energy transfer from ce3+ to tb3+. the energy-transfer efficiency from ce3+ to tb3+ was calculated, which depends on the doping concentrations of tb3+ if the concentration of ce3+ is fixed. |
| WOS关键词 | LIQUID-PHASE SYNTHESIS ; ENERGY-TRANSFER ; SEMICONDUCTOR NANOCRYSTALS ; THIN-FILMS ; PARTICLES ; PHOSPHORS ; POWDERS ; RE ; LAPO4-CE,TB ; COLLOIDS |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| WOS类目 | Chemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter |
| 语种 | 英语 |
| WOS记录号 | WOS:000231292400023 |
| 出版者 | AMER SCIENTIFIC PUBLISHERS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2377687 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Lin, J |
| 作者单位 | 1.Chinese Acad Sci, Changchun Inst Appl Chem, Key Lab Rare Earth Chem & Phys, Changchun 130022, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China 3.Univ New Orleans, Dept Chem, New Orleans, LA 70148 USA 4.Univ New Orleans, Adv Mat Res Inst, New Orleans, LA 70148 USA |
| 推荐引用方式 GB/T 7714 | Wang, ZL,Quan, ZW,Lin, J,et al. Polyol-mediated synthesis and photoluminescent properties of ce3+ and/or tb3+-doped lapo4 nanoparticles[J]. Journal of nanoscience and nanotechnology,2005,5(9):1532-1536. |
| APA | Wang, ZL,Quan, ZW,Lin, J,&Fang, JY.(2005).Polyol-mediated synthesis and photoluminescent properties of ce3+ and/or tb3+-doped lapo4 nanoparticles.Journal of nanoscience and nanotechnology,5(9),1532-1536. |
| MLA | Wang, ZL,et al."Polyol-mediated synthesis and photoluminescent properties of ce3+ and/or tb3+-doped lapo4 nanoparticles".Journal of nanoscience and nanotechnology 5.9(2005):1532-1536. |
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来源：中国科学院大学
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