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锡/钐共掺磷酸盐玻璃的可控发光以及能量传递

DOI: 10.7521/j.issn.0454-5648.2014.11.19

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Abstract:

通过激发光谱、荧光光谱以及荧光寿命测试,系统地研究Sn2+、Sm3+单掺以及Sn2+/Sm3+共掺磷酸盐玻璃的发光性能。在共掺样品的发射光谱中观察到1个涵盖蓝、绿、红色波段的超宽发光带,并可通过调节Sn2+/Sm3+浓度比实现对样品发光的调控。结果表明在紫外光激发下,能量可由Sn2+传递给Sm3+,能量传递效率最高可达42%。通过Sn2+与Sm3+的能级图研究了能量传递的机理,同时计算了不同浓度Sn2+/Sm3+的共掺样品的色坐标。

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