التفاصيل البيبلوغرافية
| العنوان: |
Spectroscopic properties of holmium ion in PbO–B2O3–SiO2–Al2O3 glass system. |
| المؤلفون: |
Sri Pallavi, A. V., Sahaya Baskaran, G., Purnachand, N., Little Flower, G., Ravi Kumar, Valluri, Veeraiah, N. |
| المصدر: |
Journal of Materials Science: Materials in Electronics; May2024, Vol. 35 Issue 14, p1-12, 12p |
| مستخلص: |
The glasses of the composition 30PbO–60B2O3–5.5SiO2–(4.5 − x) Al2O3–xHo2O3 (with x varied from 0 and 2 mol%) were prepared. Density (ρ), refractive index (n), and average molecular weight (M) were calculated from experimental measurements of these glasses. The spectra of optical absorption besides the photoluminescence were recorded at room temperature in the wavelength range of 300–2200 nm and 450–2200 nm, respectively. Using the optical absorption spectra the oscillator strengths were estimated and found to be in good agreement with the theoretical values evaluated using optical absorption spectra. Glasses doped with 0.5 mol% holmium had the highest bonding parameter, while those doped with 2.0 mol% holmium had the lowest. From this observation, it was concluded that holmium ions are in a more covalent environment in H20 glasses. The overall analysis of the luminescence spectral results indicated maximal luminescence efficiency of the glasses with 0.5 mol%. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
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