Effect of alkali/mixed alkali metal ions on the thermal and spectralcharacteristics of Dy3+:B2O3-PbO-Al2O3-ZnO glasses
Thermal and spectroscopic features of 50 B2O3–10 PbO–10 Al2O3–10 ZnO–(x) Li2O–(y) Na2O–(z) K2O–1.0 Dy2O3 (mol %) (x = 19, y = 0, and z = 0; x = 0, y = 19, and z = 0; x = 0, y = 0, and z = 19; x = 9.5, y = 9.5, and z = 0; x = 9.5, y = 0, and z = 9.5; x = 0, y = 9.5, and z = 9.5) glasses, that were fa...
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my.upm.eprints.723772020-06-01T00:43:31Z http://psasir.upm.edu.my/id/eprint/72377/ Effect of alkali/mixed alkali metal ions on the thermal and spectralcharacteristics of Dy3+:B2O3-PbO-Al2O3-ZnO glasses Lakshminarayana, Gandham Omar Baki, Sharudin Lira, Alicia Caldiño, U. Meza-Rocha, A. N. Kityk, Iwan V. Abas, Ahmad Fauzi Alresheedi, Mohammed Thamer Mahdi, Mohd Adzir Thermal and spectroscopic features of 50 B2O3–10 PbO–10 Al2O3–10 ZnO–(x) Li2O–(y) Na2O–(z) K2O–1.0 Dy2O3 (mol %) (x = 19, y = 0, and z = 0; x = 0, y = 19, and z = 0; x = 0, y = 0, and z = 19; x = 9.5, y = 9.5, and z = 0; x = 9.5, y = 0, and z = 9.5; x = 0, y = 9.5, and z = 9.5) glasses, that were fabricated by utilizing melt-quenching approach, are investigated by thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), optical absorption, photoluminescence excitation (PLE), photoluminescence (PL), and PL decay lifetimes. PL spectra for all the Dy3 +-doped samples show emission bands at 453 nm (blue), 482 nm (blue), 573 nm (yellow), 662 nm (red), and 752 nm (red) corresponding to the 4I15/2 → 6H15/2, 4F9/2 → 6H15/2, 4F9/2 → 6H13/2, 4F9/2 → 6H11/2, and 4F9/2 → 6H9/2 transitions, respectively, upon excitation at 350 nm. Here, Dy3 +: Li–Na glass shows the highest PL intensity for all identified emissions. The yellow-to-blue (Y/B) emission intensity ratio (varied within the range 1.257–1.376), CIE chromaticity coordinates (x,y) (slight variation between (0.3410, 0.3802) and (0.3495, 0.3872), and correlated color temperatures (CCTs) (changed from 4953 K to 5212 K) are calculated following the PL spectra. Dy3 +: 4F9/2 decay curves show non-exponential behavior and are fitted by the Inokuti-Hirayama (I–H) model, where S = 6 shows best fit, indicating dipole-dipole (d-d) interactions for Dy3 + excited (donor) and ground state (acceptor) ions. Elsevier 2018-02 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/72377/1/Effect%20of%20alkali.pdf Lakshminarayana, Gandham and Omar Baki, Sharudin and Lira, Alicia and Caldiño, U. and Meza-Rocha, A. N. and Kityk, Iwan V. and Abas, Ahmad Fauzi and Alresheedi, Mohammed Thamer and Mahdi, Mohd Adzir (2018) Effect of alkali/mixed alkali metal ions on the thermal and spectralcharacteristics of Dy3+:B2O3-PbO-Al2O3-ZnO glasses. Journal of Non-Crystalline Solids, 481. 191 - 201. ISSN 0022-3093; ESSN: 1873-4812 https://www.sciencedirect.com/science/article/abs/pii/S0022309317305720 10.1016/j.jnoncrysol.2017.10.047 |
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Thermal and spectroscopic features of 50 B2O3–10 PbO–10 Al2O3–10 ZnO–(x) Li2O–(y) Na2O–(z) K2O–1.0 Dy2O3 (mol %) (x = 19, y = 0, and z = 0; x = 0, y = 19, and z = 0; x = 0, y = 0, and z = 19; x = 9.5, y = 9.5, and z = 0; x = 9.5, y = 0, and z = 9.5; x = 0, y = 9.5, and z = 9.5) glasses, that were fabricated by utilizing melt-quenching approach, are investigated by thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), optical absorption, photoluminescence excitation (PLE), photoluminescence (PL), and PL decay lifetimes. PL spectra for all the Dy3 +-doped samples show emission bands at 453 nm (blue), 482 nm (blue), 573 nm (yellow), 662 nm (red), and 752 nm (red) corresponding to the 4I15/2 → 6H15/2, 4F9/2 → 6H15/2, 4F9/2 → 6H13/2, 4F9/2 → 6H11/2, and 4F9/2 → 6H9/2 transitions, respectively, upon excitation at 350 nm. Here, Dy3 +: Li–Na glass shows the highest PL intensity for all identified emissions. The yellow-to-blue (Y/B) emission intensity ratio (varied within the range 1.257–1.376), CIE chromaticity coordinates (x,y) (slight variation between (0.3410, 0.3802) and (0.3495, 0.3872), and correlated color temperatures (CCTs) (changed from 4953 K to 5212 K) are calculated following the PL spectra. Dy3 +: 4F9/2 decay curves show non-exponential behavior and are fitted by the Inokuti-Hirayama (I–H) model, where S = 6 shows best fit, indicating dipole-dipole (d-d) interactions for Dy3 + excited (donor) and ground state (acceptor) ions. |
format |
Article |
author |
Lakshminarayana, Gandham Omar Baki, Sharudin Lira, Alicia Caldiño, U. Meza-Rocha, A. N. Kityk, Iwan V. Abas, Ahmad Fauzi Alresheedi, Mohammed Thamer Mahdi, Mohd Adzir |
spellingShingle |
Lakshminarayana, Gandham Omar Baki, Sharudin Lira, Alicia Caldiño, U. Meza-Rocha, A. N. Kityk, Iwan V. Abas, Ahmad Fauzi Alresheedi, Mohammed Thamer Mahdi, Mohd Adzir Effect of alkali/mixed alkali metal ions on the thermal and spectralcharacteristics of Dy3+:B2O3-PbO-Al2O3-ZnO glasses |
author_facet |
Lakshminarayana, Gandham Omar Baki, Sharudin Lira, Alicia Caldiño, U. Meza-Rocha, A. N. Kityk, Iwan V. Abas, Ahmad Fauzi Alresheedi, Mohammed Thamer Mahdi, Mohd Adzir |
author_sort |
Lakshminarayana, Gandham |
title |
Effect of alkali/mixed alkali metal ions on the thermal and spectralcharacteristics of Dy3+:B2O3-PbO-Al2O3-ZnO glasses |
title_short |
Effect of alkali/mixed alkali metal ions on the thermal and spectralcharacteristics of Dy3+:B2O3-PbO-Al2O3-ZnO glasses |
title_full |
Effect of alkali/mixed alkali metal ions on the thermal and spectralcharacteristics of Dy3+:B2O3-PbO-Al2O3-ZnO glasses |
title_fullStr |
Effect of alkali/mixed alkali metal ions on the thermal and spectralcharacteristics of Dy3+:B2O3-PbO-Al2O3-ZnO glasses |
title_full_unstemmed |
Effect of alkali/mixed alkali metal ions on the thermal and spectralcharacteristics of Dy3+:B2O3-PbO-Al2O3-ZnO glasses |
title_sort |
effect of alkali/mixed alkali metal ions on the thermal and spectralcharacteristics of dy3+:b2o3-pbo-al2o3-zno glasses |
publisher |
Elsevier |
publishDate |
2018 |
url |
http://psasir.upm.edu.my/id/eprint/72377/1/Effect%20of%20alkali.pdf http://psasir.upm.edu.my/id/eprint/72377/ https://www.sciencedirect.com/science/article/abs/pii/S0022309317305720 |
_version_ |
1669008811778637824 |
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13.18916 |