Influence of grain size on luminescence properties of micro- and nanopowder Zn2V2O7 vanadate |
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| Institution: | 1. Ural Federal University, Yekaterinburg, Russia;2. Institute of Solid State Chemistry of Ural Branch of Russian Academy of Sciences, Yekaterinburg, Russia;1. A. Chełkowski Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland;2. Silesian Center for Education and Interdisciplinary Research, University of Silesia, 75 Pułku Piechoty 1A, 41-500 Chorzów, Poland;3. Institute of Materials Science, University of Silesia, 75 Pułku Piechoty 1A, 41-500 Chorzów, Poland;1. Ibnu Sina Institute for Fundamental Science Studies, Universiti Teknologi Malaysia, 81310 Johor Bahru, Johor, Malaysia;2. Research Center of Materials Science, Beijing Institute of Technology, Beijing 100081, PR China;3. Department of Physics, Faculty of Science, Universiti Teknologi Malaysia, 81310 Johor Bahru, Johor, Malaysia;1. College of Optoelectronic Engineering, Key Lab of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen University, Shenzhen 518060, China;2. Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi''an 710062, China;1. Henan Key Laboratory of Photovoltic Materials, School of Physics, Henan Normal University, Xinxiang 453007, China;2. School of Materials Science and Engineering Henan Normal University, Xinxiang 453007, China;3. Institute for Advanced Study, Shenzhen University, Shenzhen, Guangdong 518060, China;4. Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, Guangdong, China;5. Department of Physics, University of Agriculture, Faisalabad 38000, Pakistan;6. National Institute for Biotechnology and Genetic Engineering (NIBGE), P.O. Box. 577, Jhang Road, Faisalabad, Pakistan;7. Advanced Key Laboratory for New Ceramics, School of Materials Science & Engineering, Tsinghua University, Beijing 100084, China;8. Department of Applied Sciences, National Textile University, Faisalabad, Pakistan;1. Faculty of Environmental Science and Engineering, Key Laboratory of Petrochemical Pollution Process and Control, Guangdong Province, China;2. School of Metallurgy and Chemical Engineering, Jiangxi University of Science and Technology, 86 Hongqi Road, Ganzhou, 341000, Jiangxi, China;3. School of Chemical Engineering, Guangdong University of Petrochemical Technology, Maoming, 525000, Guangdong, China;4. Department of Chemistry, Changsha University of Science and Technology, Changsha, 410114, Hunan, China |
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| Abstract: | Micro- and spongiform nanocrystalline Zn2V2O7 compounds were synthesized by hydrothermal and solid-state reaction techniques, and their morphological features were investigated by scanning electron microscopy (SEM). The grain size ranges of the produced powders were 3–15, 0.5–2 μm, and 50–500 nm. The luminescence spectra of these compounds were measured under pulse cathode beam and photoexcitation (200–400 nm). The luminescence decay properties of Zn2V2O7 were studied.It is found that the intensity, maximum position of luminescence spectra and luminescence decay time of Zn2V2O7 samples depend considerably on the grain size of the synthesized powders. The processes of energy relaxation in Zn2V2O7 and the observed size effect on the luminescence properties are also discussed. |
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| Keywords: | Vanadate Size effect Phosphor Radioluminescence Photoluminescence Decay time |
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