Ultraviolet 5H3 and visible 5DJ luminescence of europium(III)co-doped with cerium (III) in hexagonal NaGdF4 |
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| Institution: | 1. State Key Lab of Marine Resource Utilization in South China Sea, Hainan University, Haikou 570228, China;2. School of Materials and Chemical Engineering, Hainan University, Haikou 570228, China;1. Department of Physics and Electrical Science, Hunan University of Science and Technology, Xiangtan 411201, China;2. INPAC-Institute for Nanoscale Physics and Chemsitry, KU Leuven, Celestijnenlaan 200D B-3001, Belgium;3. School of Information and Electrical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China;4. College of Mechanical and Electrical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China;1. College of Science, Northwest A&F University, Yangling, Shaanxi 712100, PR China;2. Department of Chemistry, University of Massachusetts Amherst 710 North Pleasant Street, Amherst, MA 01003, United States;1. Université de Bretagne Sud, Laboratoire Ingénierie des Matériaux de Bretagne, Lorient Cedex, France;2. School of Chemical Sciences and International and Interuniversity Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam, Kerala, India;3. John Paul College, Catholic Education of Western Australia, Kalgoorlie, WA, Australia;1. School of Materials Science and Engineering, Nanchang University, Nanchang, 330031, China;2. School of Science, Nanchang Institute of Technology, Nanchang, 330099, China |
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| Abstract: | The luminescence of NaGdF4:Ce,Eu has been investigated. After excitation of Ce3+ ions at room temperature, energy transfer to the Gd3+ions occurs, followed by migration over this sublattice to the Eu3+ions, resulting mainly in Eu3+ emission. At liquidhelium temperatures mainly Gd3+6P trap emission is observed. The Eu3+ emission in this system is remarkable, because ultraviolet Eu3+ emission (5H3-7FJ) is observed alongside the normal 5DJ emission in the visible region. |
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