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Gd摻雜對Ce0.67Tb0.33MgAl11O19發(fā)光性能的影響
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TQ128 O657.32

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國家自然科學基金(59872016)


Influence of Gd Doping on Fluorescence of Ce0.67Tb0.33MgAl11O19
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    摘要:

    采用溶膠．凝膠法制備了摻雜GdH離子的Ce0．67Tb0.33MgAl11O19(CTMA)，分別研究了Gd^3 離子取代部分Ce^3 離子和Gd^3 離子取代部分Tb^3 離子后對Ce0.67Tb0.33MgAl11O19在紫外線激發(fā)下發(fā)射可見光的影響。由于Gd^3 離子在Ce^3 離子和激活劑Tb^3 離子間起到良好的能量傳遞的作用，所以摻雜GdH離子后對Ce0.67Tb0．33MgAl11O19在紫外線激發(fā)下的主發(fā)射峰強度影響不大，在一定程度上還有加強作用。同時摻雜GdH離子使Ce0.67Tb0.33MgAl11O19在紫外線激發(fā)下發(fā)射的可見光的顏色發(fā)生了少量變化。

    Abstract:

    Ce0.67Tb0.33MgAl11O19: Gd3+ has been synthesized by processing of sol-gel, the influence of Gd doping on fluorescence of Ce0.67Tb0.33MgAl11O19 was investigated by changing the concentration and the substituted object of Gd3+ ion. The effects of substituting a part of Ce and a part of Tb with Ga on fluorescence of Ce0.67Tb0.33MgAl11O19 was studied respectively. Gd3+ transfers the energy absorbed by Ce3+ to Tb3+ efficiently, so the fluorescence intensity of Ce0.67Tb0.33MgAl11O19 changed less when Gd3+ is doped into Ce0.67Tb0.33MgAl11O19, even enhanced to some extent, And the emission color of Ce0.67Tb0.33MgAl11O19 will change a little.

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林福東 唐子龍 張中太. Gd摻雜對Ce0.67Tb0.33MgAl11O19發(fā)光性能的影響[J].稀有金屬材料與工程,2004,33(10):1116~1119.[Lin Fudong, Tang Zilong, Zhang Zhongtai. Influence of Gd Doping on Fluorescence of Ce0.67Tb0.33MgAl11O19[J]. Rare Metal Materials and Engineering,2004,33(10):1116~1119.]
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  • 最后修改日期:2004-05-20
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