Aluminum effect on photoluminescence properties of sol-gel-derived silicate glasses activated by rare-earth ions
| Autor: | G. Alombert-Goget, N. Gaumer, J. Obriot, S. Chaussedent, A. Monteil, H. Portales, A. Chiasera, M. Ferrari |
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| Jazyk: | angličtina |
| Rok vydání: | 2004 |
| Předmět: | |
| Zdroj: | 5th Symposium SiO2, Advanced Dielectrics & Related Devices, pp. PA1–PA1, Chamonix Mont-Blanc, June 21-23, 2004 info:cnr-pdr/source/autori:G. Alombert-Goget, N. Gaumer, J. Obriot, S. Chaussedent, A. Monteil, H. Portales, A. Chiasera, M. Ferrari/congresso_nome:5th Symposium SiO2, Advanced Dielectrics & Related Devices/congresso_luogo:Chamonix Mont-Blanc/congresso_data:June 21-23, 2004/anno:2004/pagina_da:PA1/pagina_a:PA1/intervallo_pagine:PA1–PA1 |
| Popis: | SiO2:Al3+:RE3+ densified and transparent sol-gel samples have been prepared with different concentrations of aluminum and rare-earth (RE) ions. The RE ions are Eu3+, Sm3+, Er3 + or Er3 +/Yb3+. Each sample has been analyzed by means of site selective techniques: fluorescence line narrowing (FLN) and time resolved spectroscopy (TRS). In the light of the results, the commonly admitted cluster dispersion effect of aluminum can be read as a local crystal field modification for the RE ions. |
| Databáze: | OpenAIRE |
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