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Fluorescence line narrowing spectroscopy of Eu in zinc-thallium-tellurite glass |
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| Authors: | V.P. Tuyen T. Hayakawa M. Nogami P. Thomas |
| Affiliation: | a Fields of Advanced Energy Conversion, Department of Frontier Materials, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-855, Japan b Science des Procedes Ceramiques et de Traitements de Surface (SPCTS), UMR 6638 CNRS, Faculte des Sciences, Universite de Limoges, 123 avenue Albert Thomas, 87060 Limoges Cedex, France c Toyota Physical and Chemical Research Institute, 41-1 Yokomichi, Nagakute, Aichi 480-1192, Japan |
| Abstract: | The environment of Eu3+ in zinc-thallium-tellurite glass of the molar composition 60TeO2-30TlO0.5-9.9ZnO-0.1Eu2O3 was investigated by laser-induced fluorescence line narrowing (FLN) techniques using Eu3+ as a local site probe. From the site selective luminescence spectra of Eu3+ at 7 K, the energies of the Stark components of the 7F1 and 7F2 states were recorded and then the crystal field parameters Bnm were calculated assuming a C2v site symmetry. The ratios B22/B20 and B44/B40 for each excitation energy within 7F0-5D0 transition were obtained and compared with the values calculated for Eu3+ in other types of glasses. |
| Keywords: | Tellurite glass Europium Crystal field parameters Fluorescence line narrowing Asymmetry |
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