Europium-doped boro-telluro-dolomite glasses for red laser applications: Basic insight into spectroscopic traits
| Autor: | Sib Krishna Ghoshal, Ibrahim Mohammed Danmallam, Ibrahim Bulus, Rosli Hussin, Y. A. Yamusa, Abd. Rahman Tamuri |
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| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Photoluminescence Materials science Analytical chemistry chemistry.chemical_element 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics Laser 01 natural sciences Spectral line Electronic Optical and Magnetic Materials law.invention BORO chemistry law 0103 physical sciences Materials Chemistry Ceramics and Composites Quantum efficiency Stimulated emission 0210 nano-technology Luminescence Europium |
| Zdroj: | Journal of Non-Crystalline Solids. 534:119949 |
| ISSN: | 0022-3093 |
| DOI: | 10.1016/j.jnoncrysol.2020.119949 |
| Popis: | Naturally abundant minerals and lanthanide-doped synthetic boro-tellurite networks have become prospective efficient laser hosts because of the synergy between them. Driven by this idea, Eu3+-doped boro-telluro-dolomite (BTD) glasses were prepared via the melt-quenching method. The spectroscopic traits of as-quenched samples were analyzed though experimental and theoretical studies. The result from the derivation of absorption spectral fitting (DASF) model demonstrated the direct allowed transition in the glasses. Moreover, the photoluminescence spectra of the sample containing 1.0 mol% of Eu3+ (BTD1.0Eu glass) revealed a prominent red peak at 611 nm (assigned to 5D0 → 7F2 transition in Eu3+ ion) with a large stimulated emission cross section ( 7.15 × 10 − 22 c m 2 ) and a high luminescence branching ratio (61.5%). Furthermore, the attained CIE color coordinates (0.637, 0.363), which lie near the standard red hue (0.67, 0.33), together with high quantum efficiency (92.7%) affirmed the effectiveness of BTD1.0Eu glass as a potential red laser host. |
| Databáze: | OpenAIRE |
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