Yb3+- and CaF2 nanocrystallites-containing oxyfluorogermanotellurite glass-ceramics
ZANANE, Hayat
Laboratoire d’Electronique Quantique [USTHB - Alger] [LEQ]
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
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Laboratoire d’Electronique Quantique [USTHB - Alger] [LEQ]
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
ZANANE, Hayat
Laboratoire d’Electronique Quantique [USTHB - Alger] [LEQ]
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
< Leer menos
Laboratoire d’Electronique Quantique [USTHB - Alger] [LEQ]
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Idioma
en
Article de revue
Este ítem está publicado en
Optical Materials. 2019, vol. 90, p. 108-117
Elsevier
Resumen en inglés
A new 30 GeO2-30 TeO2-15 ZnO-10 Na2CO3-10 CaF2-3 La2O3-2 YbF3 glass composition was synthesized and submitted to several heat treatments to provoke nanocrystallization in its bulk. The formation of nanocrystallites was ...Leer más >
A new 30 GeO2-30 TeO2-15 ZnO-10 Na2CO3-10 CaF2-3 La2O3-2 YbF3 glass composition was synthesized and submitted to several heat treatments to provoke nanocrystallization in its bulk. The formation of nanocrystallites was evidenced by high resolution transmission electron microscopy and X-ray diffraction, and their nature and size was characterized. The spectroscopic and magnetic properties of the Yb3+ ions dissolved in the glass and, presumably, in the nanocrystallites, were investigated by absorption and emission spectroscopies (including anti-Stokes emissions from Tm3+ and Er3+ impurities), fluorescence transients and magnetic susceptibility measurements. It was found that the Yb3+ ions experimental lifetime and average effective magnetic moment, as well as Tm3+ and Er3+ ions anti-Stokes emission intensities, increase with increasing crystallization state of the initial glass.< Leer menos
Palabras clave en inglés
Glass materials
Yb3+ ion spectroscopy
Rare-earth materials
Optical glass ceramics
Orígen
Importado de HalCentros de investigación