Synthesis and optical spectroscopy of borate glasses, doped with terbium and dysprosium

2012 IEEE International Conference on Oxide Materials for Electronic Engineering (OMEE) Pub Date : 2012-09-01 DOI:10.1109/OMEE.2012.6464898

B. Padlyak, B. Pieprzyk, A. Drzewiecki, V. Adamiv, Y. Burak, I. Teslyuk

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引用次数: 1

Abstract

The high optical quality glasses with CaB4O7:Tb, LiCaBO3:Tb, CaB4O7:Dy, and LiCaBO3:Dy compositions containing 0.5 and 1.0 mol. % Tb2O3 and Dy2O3 have been obtained. By electron paramagnetic resonance (EPR) and optical spectroscopy it was shown that the Tb and Dy impurities are incorporated in the CaB4O7 and LiCaBO3 glass network as Tb³⁺ (4f⁸, ⁷F6) and Dy³⁺ (4f⁹, ⁶H15/2) ions, exclusively. All observed f - f transitions of Tb³⁺ and Dy³⁺ centres in optical absorption, luminescence excitation and emission spectra have been identified. Luminescence kinetic shows single exponential decay for Tb³⁺ and Dy³⁺ centres in the CaB4O7 and LiCaBO3 glasses. Lifetimes for main emitting levels of Tb³⁺ and Dy³⁺ centres in all investigated glasses were determined at T = 300 K. Spectroscopy shows that obtained glasses are promising luminescent materials.

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掺铽镝硼酸盐玻璃的合成及光谱学研究

制备了含有0.5 mol. % Tb2O3和1.0 mol. % Dy2O3的CaB4O7:Tb、LiCaBO3:Tb、CaB4O7:Dy和LiCaBO3:Dy的高光学质量玻璃。通过电子顺磁共振(EPR)和光谱学分析表明，Tb和Dy杂质以Tb3+ (4f8, 7F6)和Dy3+ (4f9, 6H15/2)离子的形式存在于CaB4O7和LiCaBO3玻璃网络中。在光学吸收光谱、发光激发光谱和发射光谱中观察到的Tb3+和Dy3+中心的f - f跃迁都得到了确定。在CaB4O7和LiCaBO3玻璃中，Tb3+和Dy3+中心的发光动力学表现为单指数衰减。在T = 300 K时测定了所有玻璃中Tb3+和Dy3+中心的主要发光水平的寿命。光谱分析表明，所制得的玻璃是一种很有前途的发光材料。

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来源期刊

2012 IEEE International Conference on Oxide Materials for Electronic Engineering (OMEE)

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