Sol-gel synthesis and characterization of SiO2@CaWO4, SiO2@CaWO4 : Eu3+/Tb3+ core-shell structured spherical particles
文献类型：期刊论文
| 作者 | Jia PY ; Liu XM ; Li GZ ; Yu M ; Fang J ; Lin J |
| 刊名 | nanotechnology
 |
| 出版日期 | 2006 |
| 卷号 | 17期号:3页码:734-742 |
| 关键词 | CALCIUM TUNGSTATE CRYSTALS ENERGY-TRANSFER SILICA SPHERES PHOSPHORS CAWO4 LUMINESCENCE FILMS |
| ISSN号 | 0957-4484 |
| 通讯作者 | lin j |
| 中文摘要 | nanocrystalline cawo4 and eu3+ (tb3+)-doped cawo4 phosphor layers were coated on non-aggregated, monodisperse and spherical sio2 particles by the pechini sol-gel method, resulting in the formation of sio2@cawo4, sio2@cawo4:eu3+/tb3+, core-shell structured particles. x-ray diffraction (xrd), fourier transform infrared spectroscopy (ft-ir), field emission scanning electron microscopy (fesem), transmission electron microscopy (tem), photoluminescence (pl), low-voltage cathodoluminescence (cl), time-resolved pl spectra and lifetimes were used to characterize the core-shell structured materials. both xrd and ft-ir indicate that cawo4 layers have been successfully coated on the sio2 particles, which can be further verified by the fesem and tem images. the pl and cl demonstrate that the sio2@cawo4 sample exhibits blue emission band wo42- with a maximum at 420 nm (lifetime = 12.8 mu s) originated from the 4 groups, while sio2@cawo4:eu3+ and sio2@cawo4:tb3+ show additional red emission dominated by 614 nm (eu3+:d-5(0)-f-7(2) transition, lifetime = 1.04 ms) and green emission at 544 nm (tb3+:d-5(4)-f-7(5) transition, lifetime = 1.38 ms), respectively. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000235641000020 |
| 公开日期 | 2010-08-17 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/16161]  |
| 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 | Jia PY,Liu XM,Li GZ,et al. Sol-gel synthesis and characterization of SiO2@CaWO4, SiO2@CaWO4 : Eu3+/Tb3+ core-shell structured spherical particles[J]. nanotechnology,2006,17(3):734-742. |
| APA | Jia PY,Liu XM,Li GZ,Yu M,Fang J,&Lin J.(2006).Sol-gel synthesis and characterization of SiO2@CaWO4, SiO2@CaWO4 : Eu3+/Tb3+ core-shell structured spherical particles.nanotechnology,17(3),734-742. |
| MLA | Jia PY,et al."Sol-gel synthesis and characterization of SiO2@CaWO4, SiO2@CaWO4 : Eu3+/Tb3+ core-shell structured spherical particles".nanotechnology 17.3(2006):734-742. |
入库方式： OAI收割
来源：长春应用化学研究所
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