Controllable synthesis and luminescent properties of LaVO4:Eu nanocrystals
文献类型：期刊论文
| 作者 | Wang, LP ; Chen, LM |
| 刊名 | MATERIALS CHARACTERIZATION
 |
| 出版日期 | 2012 |
| 卷号 | 69页码:108 |
| 关键词 | SELECTIVE SYNTHESIS MONAZITE-TYPE HYDROTHERMAL SYNTHESIS ORTHOVANADATE GROWTH NANOWIRES NANOTUBES CRYSTALS OXIDES |
| ISSN号 | 1044-5803 |
| 通讯作者 | Chen, LM: Cent S Univ, Coll Chem & Chem Engn, Changsha 410083, Hunan, Peoples R China. |
| 中文摘要 | Pure monoclinic and tetragonal LaVO4:Eu nanocrystals with various morphologies were successfully synthesized by a hydrothermal method in the presence of ethylenediaminetetraacetic acid [EDTA or H4L, where L4- = (CH2COO)(2) N (CH2)(2) N(CH2COO)(2)(4-)]. It was found that tuning the pH of the growth solution was a crucial step for the synthesis of LaVO4:Eu nanocrystals with controllable crystal structure and morphology. When the pH value was lower than 2.5, urchin-like monoclinic LaVO4:Eu nanostructures were obtained. Increasing the pH value can induce the phase transformation from monazite to zircon type accompanied with the morphology transformation: urchin-like -> bundle -> nanorod/nanowire. In addition, the concentration of EDTA also played an important role in determining the aspect ratio of tetragonal LaVO4:Eu nanorods. The possible mechanism responsible for the phase control and morphology evolution of the LaVO4:Eu nanocrystals was discussed. Their luminescent properties were systematically studied. It demonstrated that the phase transformation from monazite to zircon type and the increase in the aspect ratio of LaVO4:Eu nanorods resulted in a remarkable improvement of the luminescent properties. (C) 2012 Elsevier Inc. All rights reserved. |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China [21101172] |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/35121]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Wang, LP,Chen, LM. Controllable synthesis and luminescent properties of LaVO4:Eu nanocrystals[J]. MATERIALS CHARACTERIZATION,2012,69:108. |
| APA | Wang, LP,&Chen, LM.(2012).Controllable synthesis and luminescent properties of LaVO4:Eu nanocrystals.MATERIALS CHARACTERIZATION,69,108. |
| MLA | Wang, LP,et al."Controllable synthesis and luminescent properties of LaVO4:Eu nanocrystals".MATERIALS CHARACTERIZATION 69(2012):108. |
入库方式： OAI收割
来源：物理研究所
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