Influence of structural evolution on fluorescence properties of transparent glass ceramics containing laf3 nanocrystals
文献类型：期刊论文
| 作者 | Ma, E; Hu, ZJ; Wang, YS; Bao, F |
| 刊名 | Journal of luminescence
 |
| 出版日期 | 2006-06-01 |
| 卷号 | 118期号:2页码:131-138 |
| 关键词 | Glass ceramic Nanocrystal Erbium ions Fluorescence |
| ISSN号 | 0022-2313 |
| DOI | 10.1016/j.jlumin.2005.08.004 |
| 通讯作者 | Wang, ys() |
| 英文摘要 | The structural evolution and the fluorescence properties of er3 +-doped oxyfluoride glass ceramics were investigated for samples at different stages of laf3 crystallization. tem observation revealed the homogeneous precipitation of spherical laf3 crystals sized in the range of 10-15 nm among the glassy matrix for a sample heated to 690 degrees c. the crystallization induced the splitting of er3+ emission peaks and the appearance of upconversion in the visible waveband,. implying the incorporation of er3+ into a low-phonon-energy crystalline fluoride environment. in the isothermal experiment at 650 degrees c, with the increasing of crystal size that resulted from prolonged heating time, the relative intensity of upconversion emission at 660 nm to that at 540 nm decreased significantly, probably due to the reducing of multiphonon relaxation rate between s-4(3/2) and f-4(9/2), which was believed to be caused by weaker interactions of the er3+ electronic states in nanocrystals with the vibrational excitations of the surrounding glass medium and with the mixed vibrational modes of nanocrystallites and glass for the system with larger particle size. the remarkable difference in spectrum shape of the visible emissions under 378 nm excitation and 980 nm excitation implied that a certain amount of er3+ ions still remained in the glass matrix after crystallization. (c) 2005 elsevier b.v. all rights reserved. |
| WOS关键词 | UP-CONVERSION ; VITROCERAMICS ; ER3+ |
| WOS研究方向 | Optics |
| WOS类目 | Optics |
| 语种 | 英语 |
| WOS记录号 | WOS:000235852800002 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2379585 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Wang, YS |
| 作者单位 | Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Grad Sch, Fujian 350002, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ma, E,Hu, ZJ,Wang, YS,et al. Influence of structural evolution on fluorescence properties of transparent glass ceramics containing laf3 nanocrystals[J]. Journal of luminescence,2006,118(2):131-138. |
| APA | Ma, E,Hu, ZJ,Wang, YS,&Bao, F.(2006).Influence of structural evolution on fluorescence properties of transparent glass ceramics containing laf3 nanocrystals.Journal of luminescence,118(2),131-138. |
| MLA | Ma, E,et al."Influence of structural evolution on fluorescence properties of transparent glass ceramics containing laf3 nanocrystals".Journal of luminescence 118.2(2006):131-138. |
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来源：中国科学院大学
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