Luminescence Properties of Tb, SmCo-doped in Alkali Aluminoborate Glasses

Tran Ngoc, Phan Thi Hoai Thuong, Hoang Sy Tai

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Published Mar 26, 2019
DOI: https://doi.org/10.25073/2588-1124/vnumap.4301

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NGOC, Tran; HOAI THUONG, Phan Thi; SY TAI, Hoang. Luminescence Properties of Tb, SmCo-doped in Alkali Aluminoborate Glasses. VNU Journal of Science: Mathematics - Physics, [S.l.], v. 35, n. 1, mar. 2019. ISSN 2588-1124. Available at: <https://js.vnu.edu.vn/MaP/article/view/4301>. Date accessed: 22 dec. 2024. doi: https://doi.org/10.25073/2588-1124/vnumap.4301.
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Vol 35 No 1
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Original Article

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Abstract

Abstract: Spectroscopic properties of Tb3+ and Sm3+ ions co-doped in alkali aluminoborate glasses (70-x-y)B2O3.28Li2O.2Al2O3.xSm2O3.yTb2O3 (ABL:Tb, Sm) fabricated by melting method have been studied. The emission intensity of Tb3+ or Sm3+ in ABL:Tb or ABL:Sm glasses is influenced by the Tb3+ or Sm3+doping concerning with the 0.75 mol% and 1.0 mol% optimum concentrations, respectively. The concentration quenching effect of Tb3+ or Sm3+ in ABL:Tb, Sm glasses is observed. The mechanism of this phenomenon is attributed to the f-f interaction for either Tb3+/Sm3. The ABL:Tb, Sm glasses can produce color emission from green to red by properly tuning the relative ratio between Tb3+ and Sm3+. The emission intensity of Tb3+/Sm3+ in ABL:Tb, Sm glasses can be enhanced by the energy transfer from Tb3+/Tb3+ and Sm3+/Sm3+. The results indicate that ABL:Tb, Sm may be a promising double emission for white light emitting diodes.


Keywords:Sm3+and Tb3+ ions; alkali aluminoborate glass, the concentration quenching mechanism.

Keywords: Sm3 and Tb3 ions; alkali aluminoborate glass, the concentration quenching mechanism

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