Abstract
We report transparent Ni2+-doped ZnO-Al2O3-SiO2 system glass-ceramics with broadband infrared luminescence. After heat-treatment, ZnAl2O4 crystallite was precipitated in the glasses, and its average size increased with increasing heat-treatment temperature. No infrared emission was detected in the as-prepared glass samples, while broadband infrared luminescence centered at 1310 nm with full width at half maximum (FWHM) of about 300 nm was observed from the glass-ceramics. The peak position of the infrared luminescence showed a blue-shift with increasing heat-treatment temperature, but a red-shift with an increase in NiO concentration. The mechanisms of the observed phenomena were discussed. These glass-ceramics are promising as materials for super broadband optical amplifier and tunable laser.
| Original language | English |
|---|---|
| Pages (from-to) | 762-768 |
| Number of pages | 7 |
| Journal | Materials Research Bulletin |
| Volume | 42 |
| Issue number | 4 |
| DOIs | |
| State | Published - 12 Apr 2007 |
| Externally published | Yes |
Keywords
- A. Optical materials
- C. Luminescence
- C. X-ray diffraction
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