CINECA IRIS Institutional Research Information System
IRIS è l’archivio della produzione scientifica della Fondazione Bruno Kessler.
EnglishThis paper describes and compares the local environments of Er3+ ions in pure SiO2, SiO2-Al2O3, SiO2-TiO2, and SiO2-HfO2, glasses, and in SiO2-HfO2 glass-ceramic waveguiding systems. This structural information is useful for selecting waveguides with optimised functional properties. This comparison has emphasised the peculiarity of the SiO2-HfO2 glass, in which the Er3+ ions are incorporated in HfO2-rich regions. By appropriate heat treatment, a transformation of SiO2-HfO2 system from glass to glass-ceramic occurs, where Er3+ remains incorporated in HfO2 nanocrystals as substituent of Hf4+. The spectroscopic interpretations are coherent with the present structural results.
Scheda prodotto non validato
Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte di FBK.
| Titolo: | Er3+-activated SiO2-based glasses and glass-ceramics: from structure to optimisation | |
| Autori: | ||
| Data di pubblicazione: | 2007 | |
| Rivista: | ||
| Abstract: | This paper describes and compares the local environments of Er3+ ions in pure SiO2, SiO2-Al2O3, SiO2-TiO2, and SiO2-HfO2, glasses, and in SiO2-HfO2 glass-ceramic waveguiding systems. This structural information is useful for selecting waveguides with optimised functional properties. This comparison has emphasised the peculiarity of the SiO2-HfO2 glass, in which the Er3+ ions are incorporated in HfO2-rich regions. By appropriate heat treatment, a transformation of SiO2-HfO2 system from glass to glass-ceramic occurs, where Er3+ remains incorporated in HfO2 nanocrystals as substituent of Hf4+. The spectroscopic interpretations are coherent with the present structural results. | |
| Handle: | http://hdl.handle.net/11582/31658 | |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
File in questo prodotto:
http://hdl.handle.net/11582/31658
Copyright © 2021