Synthesis,structure and luminescent properties of Eu3+ doped Ca3LiMgV3O12 color-tunable phosphor |
| |
| Authors: | Xinguo Zhang Zhenpeng Zhu Ziying Guo Zishan Sun Liya Zhou Zhan-chao Wu |
| |
| Affiliation: | 1. Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China;2. School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China;3. State Key Laboratory Base of Eco-chemical Engineering, Laboratory of Inorganic Synthesis and Applied Chemistry, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China |
| |
| Abstract: | A new vanadate Ca3LiMgV3O12 and its Eu3+-doped counterparts were synthesized. Rietveld confinement result of Ca3LiMgV3O12 host indicates that it belongs to cubic space group Ia-3d with parameters of a =?12.4300?Å, V =?1920.49?Å3, Z?=?8. Under UV excitation, pure Ca3LiMgV3O12 exhibits a bluish-green broadband emission at 490?nm, while Eu3+ doped Ca3LiMgV3O12 shows one bluish-green broad band with a series of red sharp peaks, which originate from the V5+-O2- charge transfer and the Eu3+ intra-4f transitions, respectively. The occurrence of VO4→Eu3+ energy transfer is confirmed by decay lifetime analysis and time-resolved emission spectra. It is found that emitting color varies from bluish-green to orange-red with increasing Eu3+ concentration. VO4 bluish-green and Eu3+ red emission shows different thermal quenching response with increasing temperature, due to their different activation energy. |
| |
| Keywords: | Vanadate Structure Color-tunable |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
