Luminescence Properties of Magnesium Sodium Borate Glasses Doped Sm^3+, Dy³⁺ and Eu³⁺

Abstract:

The luminescence properties Dy³⁺, Eu³⁺ and Sm³⁺ doped magnesium sodium borate glasses were investigated. The glasses samples containing the composition 30MgO-70Na2B4O7.10H2O-xRE₂O₃ (where RE = Dy³⁺, Eu³⁺, and Sm³⁺, x = 0.1, 0.5, and 1.0 mol %) are prepared by the conventional melt quenching technique. The optical properties have been evaluated using Ultraviolet-Visible Spectroscopy and Photoluminescence Spectroscopy. The X-ray Diffraction pattern was studied to confirm the amorphous nature of the prepared glass. The absorption spectra yield the most intense absorption bands and transition energy levels for Dy³⁺, Eu³⁺, and Sm³⁺ located at 347 nm (⁶H_15/2 → ⁶P_7/2), 393 nm (⁷F₀ → ⁵L₆), and 403 nm (⁶H_5/2 →⁶P_5/2) respectively. The emission spectra demonstrate the highest emission intensity centered at 463 nm (⁴F_9/2 → ⁶F_11/2 + ⁶H_9/2), 612 nm (⁵D₀ → ⁷F_J), and 599 nm (⁴G_5/2 → ⁶H_7/2) for Dy³⁺, Eu³⁺, and Sm³⁺ respectively. Dy³⁺ emits combination of blue, yellow, and red light, Eu³⁺ emits red light and Sm³⁺ emits orange to red light. The higher the content of Dy³⁺, Eu³⁺, and Sm³⁺, the higher the spectral or peak intensity for both absorption and emission. The findings could be useful for development of laser, light emitting diode (LED), and color displays applications. KEY WORDS: Luminescence, Borax glass, Magnesium, Dysprosium, Europium, Samarium.

• Periodical: Solid State Phenomena (Volume 307)
• Pages: 314-320
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.307.314
• Online since: July 2020
• Authors: Abd Rahman Tamuri*, Aryna Abdul Majid, Rosli Husin
• Keywords: Borax Glass, Dysprosium, Europium, Luminescence, Magnesium, Samarium

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