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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Luminescence properties and energy transfer of Eu/Tb ions codoped aluminoborosilicate glasses
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Luminescence properties and energy transfer of Eu/Tb ions codoped aluminoborosilicate glasses

机译：Eu / Tb离子共掺杂铝硼硅酸盐玻璃的发光性质和能量转移

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摘要

Eu/Tb codoped aluminoborosilicate glasses were fabricated by high temperature melting-quenched technique and their luminescence properties were investigated by excitation and emission spectra. Under 376 nm excitation, blue, green and red emission bands were simultaneously observed at 425 nm, 485 nm, 540 nm and 611 nm, respectively. The broad blue emission band centered at 425 nm was originated from the reduced Eu~(2+) ions, which were reduced from Eu~(3+) ions at high temperature in an ambient atmosphere and the reduction process may be related with the optical basicity of glass matrix. A complex bright white light emission was obtained for 0.5 mol% Eu _2O_3, 0.5 mol% Tb_2O_3 codoped aluminoborosilicate glass with CIE-X = 0.31 and CIE-Y = 0.33. The energy transfer among Eu~(3+), Eu~(2)+ and Tb~(3+) ions was also discussed.
机译：采用高温熔融淬火技术制备了Eu / Tb共掺杂的铝硼硅酸盐玻璃，并通过激发和发射光谱研究了其发光性能。在376 nm激发下，分别在425 nm，485 nm，540 nm和611 nm分别观察到蓝色，绿色和红色发射带。中心在425 nm处的宽蓝色发射带起源于还原的Eu〜（2+）离子，其在高温环境下从Eu〜（3+）离子还原而得，还原过程可能与光学玻璃基质的碱性。对于0.5摩尔％的Eu_2O_3、0.5摩尔％的Tb_2O_3共掺杂的铝硼硅酸盐玻璃，获得了复杂的白光发射，其CIE-X ＝ 0.31且CIE-Y ＝ 0.33。还讨论了Eu〜（3 +），Eu〜（2）+和Tb〜（3+）离子之间的能量转移。

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