Sol-gel synthesis and photoluminescent properties of LaPO4 : A (A = Eu3+, Ce3+, Tb3+) nanocrystalline thin films
文献类型：期刊论文
| 作者 | Yu M ; Lin J ; Fu J ; Zhang HJ ; Han YC |
| 刊名 | journal of materials chemistry
 |
| 出版日期 | 2003 |
| 卷号 | 13期号:6页码:1413-1419 |
| 关键词 | EMISSION DISPLAY APPLICATIONS LIQUID-PHASE SYNTHESIS PHOSPHOR FILMS RARE-EARTH DEPOSITION MICROSTRUCTURE NANOPARTICLES FABRICATION COLLOIDS POWDERS |
| ISSN号 | 0959-9428 |
| 通讯作者 | lin j |
| 中文摘要 | rare-earth ion (eu3+, tb3+, ce3+)- doped lapo4 nanocrystalline thin films and their patterning were fabricated by a pechini sol-gel process combined with soft lithography on silicon and silica glass substrates. x-ray diffraction (xrd), fourier transform infrared spectroscopy (ft-ir), thermogravimetric and differential thermal analysis (tg-dta), atomic force microscopy (afm), scanning electron microcopy (sem), optical microscopy, absorption and photoluminescence (pl) spectra as well as lifetimes were used to characterize the resulting films. the results of xrd indicate that the films begin to crystallize at 700 degreesc and the crystallinity increases with increasing annealing temperature. the morphology of the thin film depends on the annealing temperature and the number of coating layers. the 1000 degreesc annealed single layer film is transparent to the naked eye, uniform and crack-free with a thickness of about 200 nm and an average grain size of 100 nm. patterned thin films with different strip widths ( 5 - 50 mm) were obtained by micromolding in capillaries ( soft lithography). the doped rare earth ions show their characteristic emission in the nanocrystalline lapo4 films, i.e., eu3+ d-5(0)-f-7(j) (j = 1, 2, 3, 4), tb3+ d-5(3,4) - f-7(j) ( j = 6, 5, 4, 3, 2) and ce3+ 5d-4f transition emissions, respectively. both the lifetimes and the pl intensities of eu3+ and tb3+ increase with increasing annealing temperature, and the optimum concentrations for them were determined to be 5 mol% and 16 mol% of la3+ in lapo4 thin films, respectively. an energy transfer phenomenon from ce3+ to tb3+ has been observed in lapo4 nanocrystalline thin films, and the energy transfer efficiency depends on the doping concentration of tb3+ if the concentration of ce3+ is fixed. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000182997400030 |
| 公开日期 | 2010-09-13 |
| 源URL | [http://202.98.16.49/handle/322003/17311]  |
| 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 | Yu M,Lin J,Fu J,et al. Sol-gel synthesis and photoluminescent properties of LaPO4 : A (A = Eu3+, Ce3+, Tb3+) nanocrystalline thin films[J]. journal of materials chemistry,2003,13(6):1413-1419. |
| APA | Yu M,Lin J,Fu J,Zhang HJ,&Han YC.(2003).Sol-gel synthesis and photoluminescent properties of LaPO4 : A (A = Eu3+, Ce3+, Tb3+) nanocrystalline thin films.journal of materials chemistry,13(6),1413-1419. |
| MLA | Yu M,et al."Sol-gel synthesis and photoluminescent properties of LaPO4 : A (A = Eu3+, Ce3+, Tb3+) nanocrystalline thin films".journal of materials chemistry 13.6(2003):1413-1419. |
入库方式： OAI收割
来源：长春应用化学研究所
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