التفاصيل البيبلوغرافية
| العنوان: |
Optical and spectroscopic properties of the novel BaO–Al2O3–P2O5: Sm2O3 glass system for orange-red light emission. |
| المؤلفون: |
Banoqitah, Essam1,2 (AUTHOR), Hammad, Ahmed H.3 (AUTHOR) ahhhassan@kau.edu.sa |
| المصدر: |
Applied Physics A: Materials Science & Processing. Dec2024, Vol. 130 Issue 12, p1-12. 12p. |
| مصطلحات موضوعية: |
*PHOSPHATE glass, *OPTICAL glass, *ALUMINUM phosphate, *OPTICAL properties, *ABSORPTION spectra, *SAMARIUM |
| مستخلص: |
The conventional melt-annealing technique was used to prepare barium aluminum phosphate glass containing samarium ions. The phosphate structural units vibrate as P–O in Q2 and Q3 modes. The glass density of the base glass was 3.366 g/cm3, which increased to 3.456 g/cm3 at the 1.5% Sm2O3 content. The Sm3+ ions cause distinct and intense peaks to appear in the absorption spectra. The optical transition in these glasses decreased from 4.088 eV (the base) to 3.962 eV (1.5% Sm2O3). The Judd–Ofelt theory was used to analyze the absorption spectra, and the intensity parameters follow the order Ω4 > Ω6 > Ω2 for the high samarium content. The intensity of the emission decreased due to the concentration quenching of samarium ions. The high and intense emission transition of 4G5/2 → 6H7/2 led to the emission of an orange-red color. The glass sample containing 1.0% Sm2O3 has the highest color purity at 81.97%. [ABSTRACT FROM AUTHOR] |
| قاعدة البيانات: |
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