Splitting and broadening of the emission bands of Y2O3:Eu3+,Nd3+ and its dependence on Nd3+ concentration and annealing temperature
文献类型：期刊论文
| 作者 | Liu, Wangdong1; Wang, Hanchao2; Zhan, Shiping1; Li, Wenbin1 |
| 刊名 | JOURNAL OF MATERIALS SCIENCE
 |
| 出版日期 | 2011-12-01 |
| 卷号 | 46页码:7620-7625 |
| ISSN号 | 0022-2461 |
| DOI | 10.1007/s10853-011-5739-6 |
| 英文摘要 | Although Eu3+ ion-doped Y2O3 has been extensively used as red phosphors, their color rendering needs to be improved for high-quality illumination and displaying. Here, we show that the emission spectra of Y2O3: Eu3+ red phosphors can be broadened by the doping of Nd3+ ion so that the color rendering capability of Y2O3: Eu3+ was remarkably enhanced. Y2O3: Eu3+ and Y2O3: Eu3+, Nd3+ colloidal spheres were synthesized by wet chemical procedure and high-temperature treatment. The fluorescence measurement under the 254 and 380 nm ultraviolet excitation indicates that the 612 nm red emission peak of Eu3+ can be splitted into two ones by the doping of Nd3+ ion, of which the full width at half maximum (FWHM) is broadened from 4.2 nm to 9.6 nm. By varying the concentration of Nd3+ ion, it was determined that the optimal doping concentration of Nd3+ ion is of 3 mol% for realizing the strongest emission intensity. The further increase of Nd3+ ion exceeding 3 mol% would lead to a concentration quenching phenomenon. The analysis based on XRD spectra and the simplified energy diagram suggested that the doped Nd3+ ion not only monitored the growth dynamics, but also took an efficient energy transfer and a cross relaxation process to generate intense emission from Eu3+ ion in both of C-2 and S-6 sites, instead of preferable one type of Eu3+ site (C-2 or S-6) in the Nd3+ undoped sample. |
| WOS关键词 | LUMINESCENCE PROPERTIES ; Y2O3-EU ; PHOTOLUMINESCENCE ; NANOCRYSTALS ; SPECTROSCOPY ; EU3+Y2O3 ; EU2O3 |
| 资助项目 | Hunan provincial education Department[(2009)192] |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000295179700034 |
| 出版者 | SPRINGER |
| 资助机构 | Hunan provincial education Department |
| 源URL | [http://119.78.100.186/handle/113462/34380]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Liu, Wangdong |
| 作者单位 | 1.Hunan Univ Sci & Technol, Sch Phys, Xiangtan 411201, Peoples R China 2.Xiangtan Univ, Inst Modern Phys, Xiangtan 411105, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Wangdong,Wang, Hanchao,Zhan, Shiping,et al. Splitting and broadening of the emission bands of Y2O3:Eu3+,Nd3+ and its dependence on Nd3+ concentration and annealing temperature[J]. JOURNAL OF MATERIALS SCIENCE,2011,46:7620-7625. |
| APA | Liu, Wangdong,Wang, Hanchao,Zhan, Shiping,&Li, Wenbin.(2011).Splitting and broadening of the emission bands of Y2O3:Eu3+,Nd3+ and its dependence on Nd3+ concentration and annealing temperature.JOURNAL OF MATERIALS SCIENCE,46,7620-7625. |
| MLA | Liu, Wangdong,et al."Splitting and broadening of the emission bands of Y2O3:Eu3+,Nd3+ and its dependence on Nd3+ concentration and annealing temperature".JOURNAL OF MATERIALS SCIENCE 46(2011):7620-7625. |
入库方式： OAI收割
来源：近代物理研究所
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