The influence of auxiliary codopants on persistent phosphor Sr2P2O7:Eu2+,R3+ (R = Y,La, Ce,Gd, Tb and Lu) |
| |
| Affiliation: | 1. Department of Applied and Environmental Chemistry, University of Szeged, H-6720 Szeged, Rerrich Béla tér 1., Hungary;2. MTA-SZTE Reaction Kinetics and Surface Chemistry Research Group, H-6720 Szeged, Rerrich Béla tér 1., Hungary;1. College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu, 610059, China;2. School of Mechanical Engineering, Institute for Advanced Materials, Chengdu University, Chengdu, 610106, China;3. Faculty of Materials Science and Engineering, Key Laboratory of Advanced Materials of Yunnan Province, Kunming University of Science and Technology, Kunming, 650093, China;1. MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, KLGHEI of Environment and Energy Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou 510275, China;2. Faculty of Applied Sciences, Delft University of Technology, Mekelweg 15, 2629 JB Delft, The Netherlands;3. Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039, China;1. Key Laboratory of Material and Technology for Clean Energy, Ministry of Education, Xinjiang University, Urumqi 830046, Xinjiang, PR China;2. Key Laboratory of Advanced Functional Materials, Autonomous Region, Institute of Applied Chemistry, Xinjiang University, Urumqi 830046, Xinjiang, PR China |
| |
| Abstract: | We investigate the persistent luminescence in europium-doped strontium pyrophosphate upon codoping with auxiliary rare earth ions. The persistent phosphors are synthesized via solid-state reaction method under flowing N2 + H2. Under UV irradiation, broadband emission persistent luminescence located at 420 nm is observed in all of these phosphors at room temperature. The effects of auxiliary rare earth ions on Sr2P2O7:Eu2+ are discussed according to the decay curves and thermoluminescence spectra. Sr2P2O7:Eu2+,Lu3+ shows the best performance, while and La3+ and Ce3+ codoped samples are the weakest. The influence of auxiliary codopants is discussed in terms of ionic potential and ionic radius. We derive an empirical formula based on the experimental results. |
| |
| Keywords: | A. Optical materials B. Chemical synthesis D. Luminescence |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
