Infrared to visible upconversion luminescence in yb3+, ho3+: y2o3 nanocrystalline powders
文献类型：期刊论文
| 作者 | Zhang, J; Wang, SW; An, LQ; Liu, M; Chen, LD |
| 刊名 | Functionally graded materials viii
 |
| 出版日期 | 2005 |
| 卷号 | 492-493页码:95-100 |
| 关键词 | Y2o3 nanocrystalline powders Upconversion Excited state absorption Energy transfer |
| ISSN号 | 0255-5476 |
| 通讯作者 | Zhang, j(zhangjian@mail.sic.ac.cn) |
| 英文摘要 | Yb3+, ho3+ co-doped y2o3 nanocrystalline powders were synthesized via a reverse-strike co-precipitation method using nitrates and ammonia as raw materials. the as-prepared powders are cubic y2o3 after fired at 700 degrees c for 2 h. field emission scanning electronic microscopy revealed that most of the particles are nearly spherical and the average diameter of the particles is in the range of 60-80 nm. under the excitation with a 980 nm. continuous wave diode laser, two main emission bands, i.e., green emission centered at 549 nm and red emission centered at 666 nm is observed, respectively. the green emission is attributed to the transition of (s-5(2), f-5(4)-f-5(8)) levels of ho3+; while for the red emission, the transition of f-5(5)-i-5(8) levels is suggested. in addition, near infrared emission centered at 755 nm is also detected, corresponding to the transition of (s-5(2), f-5(4)-i-5(7)) levels. the dependence of the intensity of upconversion emissions upon the pump power of the diode laser suggests that two-photon absorption mechanism be involved in these processes. |
| WOS关键词 | OPTICAL-PROPERTIES ; CRYSTALLITE SIZE ; PHOSPHOR ; ION ; SPECTROSCOPY ; Y2O3-EU |
| WOS研究方向 | Materials Science |
| WOS类目 | Materials Science, Multidisciplinary ; Materials Science, Biomaterials ; Materials Science, Characterization & Testing ; Materials Science, Coatings & Films |
| 语种 | 英语 |
| WOS记录号 | WOS:000230986100016 |
| 出版者 | TRANS TECH PUBLICATIONS LTD |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2377391 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Zhang, J |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Inst Ceram, Shanghai 200050, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, J,Wang, SW,An, LQ,et al. Infrared to visible upconversion luminescence in yb3+, ho3+: y2o3 nanocrystalline powders[J]. Functionally graded materials viii,2005,492-493:95-100. |
| APA | Zhang, J,Wang, SW,An, LQ,Liu, M,&Chen, LD.(2005).Infrared to visible upconversion luminescence in yb3+, ho3+: y2o3 nanocrystalline powders.Functionally graded materials viii,492-493,95-100. |
| MLA | Zhang, J,et al."Infrared to visible upconversion luminescence in yb3+, ho3+: y2o3 nanocrystalline powders".Functionally graded materials viii 492-493(2005):95-100. |
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来源：中国科学院大学
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