Crystallization and spectroscopic properties in Er3+ doped oxyfluorogermanate glass ceramics containing Na |
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| Affiliation: | 1. Faculty of Mechanical and Electrical Engineering, Kunming University of Science and Technology, Kunming 650500, China;2. Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China;1. Department of Chemistry, University of North Florida, Jacksonville, FL 32224, USA;2. Optical Spectroscopy & Nano-Materials Lab, New College of Florida, Sarasota, FL 34243, USA;1. College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China;2. Nantong Friendly New Materials Co., LTD, Nantong 226399, China;3. Department of Physics and Interdisciplinary Program of Biomedical, Mechanical and Electrical Engineering, Pukyong National University, Busan 608-737, Republic of Korea;1. National Research and Development Institute for Chemistry and Petrochemistry – ICECHIM, 202 Splaiul Independentei, 060021 Bucharest, Romania;2. Institute of Physical Chemistry “Ilie Murgulescu”, 202 Splaiul Independentei, 060021 Bucharest, Romania;1. School of Information Science and Engineering, Shandong University, Jinan 250100, China;2. Key Laboratory of Transparent and Opto-Functional Inorganic Materials, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201800, China;1. Laser Research Institute, Shahid Beheshti University, Tehran, Iran;2. Department of Chemistry, Faculty of Science, University of Tehran, Iran;3. Nano-Optics Research Group, Tehran, Iran |
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| Abstract: | The Er3+ doped oxyfluorogermanate glasses, with a composition containing Na element, were synthesized by the conventional melting–quenching technique. When Na element was introduced into the composition of oxyfluorogermanate glass, the crystals behavior was investigated in details. Depending on the annealing procedure supplied, thermal annealing of precursor glasses in the system GeO2/BaF2/AlF3/Na2O/NaF/ZnO/GdF3/ErF3 led to the precipitation of different crystal phase nanocrystals. It was confirmed the nanocrystals in GC600 is orthorhombic NaBaAlF6 which led to enhance obviously in the UC luminescence of Er3+. However, the nanocrystals in G585 led to decrease in the UC luminescence, which indicated few Er ions enter into the lattice of this nanocrystal phase. The reason of the decrease in UC emission intensity of GC585 was analyzed. |
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| Keywords: | Oxyfluorogermanate glass ceramic Crystallization behavior Spectroscopic properties Na |
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