Abstract
ZnO surface crystallized glass-ceramics were fabricated using K 2O-CaO-ZnO-B2O3-SiO2-Al 2O3 glass system. Precipitation of Zn-containing oxide crystallites was affected by the chemical composition of borate glass, especially the amount of Al2O3. Substitution of SiO 2 for B2O3 brought selective crystallization of ZnO without precipitation of α-Zn3B2O6. ZnO-precipitated glass-ceramics showed surface crystallization with submicron-sized crystallites, which assured transparency of these glass-ceramics. The obtained glass-ceramic shows free exciton emission, which is similar to emission of ZnO single crystal.
Original language | English |
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Pages (from-to) | 3080-3084 |
Number of pages | 5 |
Journal | Journal of Non-Crystalline Solids |
Volume | 356 |
Issue number | 52-54 |
DOIs | |
Publication status | Published - 2010 Dec 1 |
Keywords
- Al2O3
- Glass-ceramics
- Photoluminescence
- ZnO
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Ceramics and Composites
- Condensed Matter Physics
- Materials Chemistry