Abstract
The self-crystallization phenomenon in glass can provide low-phonon energy environment for the up-conversion of luminescence centers. Nevertheless, the crystallization mechanism is not clear, hence the effect of temperature on the self-crystallization of Ba2LaF7: Er3+/Yb3+ glass-ceramics via adjusting its melting temperature has investigated. The self-crystallization fraction of Ba2LaF7 has decreased with the increase in melting temperature. The Fourier transforms infrared spectra, X-ray Fluorescence analysis and differential thermal analysis revealed that the increase in temperature makes the Si[sbnd]O bond longer in the glass, resulting in the increase of activation energy for crystallization instead of precipitating the crystals.
Original language | English |
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Article number | 119579 |
Journal | Journal of Non-Crystalline Solids |
Volume | 523 |
ISSN | 0022-3093 |
DOIs | |
Publication status | Published - 1 Nov 2019 |
Externally published | Yes |
Bibliographical note
Funding Information:This work was supported by the National Natural Science Foundation of China (No. 11774138 , 11664022 ) and Foundation of Yunnan Province ( 2016FA021 and 2016FB081 ) and the project for personnel training fund supported by Kunming University of Science and Technology ( KKSY201632046 ).
Publisher Copyright:
© 2019 Elsevier B.V.
Keywords
- BaLaF
- FTIR
- Glass-ceramics
- Luminescence
- Self-crystallization
- Temperature