Oxide glass with minimum distance 0.67 nm between rare-earth activators

• Published in: Glass and ceramics Vol. 70; no. 3-4; pp. 141 - 142
• Main Authors: Malashkevich, G. E., Golubev, N. V., Mamadzhanova, E. Kh, Ziyatdinova, M. Z., Sigaev, V. N., Sukhodola, A. A., Khotchenkova, T. G., Prusova, I. V., Sergeev, I. I.
• Format: Journal Article
• Language: English
• Published: Boston Springer US 01-07-2013; Springer; Springer Nature B.V
• Subjects: Ceramics; Characterization and Evaluation of Materials; Chemistry and Materials Science; Composites; Energy gap; Glass; Luminescence; Materials Science; Natural Materials; Oscillators; Oxides; Quenching; Rare earth metals; minimum Ln–Ln distance; rare-earth activators; concentration quenching of luminescence
• ISSN: 0361-7610; 1573-8515
• DOI: 10.1007/s10717-013-9527-4

It is shown that glasses in the system (Ln
x
Y
1 –
x
)
2
O
3
O
3
–Al
2
O
3
–B
2
O
3
are a promising matrix for obtaining highly doped active media with low-efficiency concentration quenching of luminescence. However, because high-frequency vibrational oscillators [BO3] present in such glasses it is preferable to use activators with an energy gap between a metastable state and a lower state above 8000 cm
–1
closest to it.