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首页> 外文期刊>Spectrochimica acta, Part A. Molecular and biomolecular spectroscopy >Fluorescence properties of Eu3+ ions doped borate and fluoroborate glasses containing lithium, zinc and lead
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Fluorescence properties of Eu3+ ions doped borate and fluoroborate glasses containing lithium, zinc and lead

机译:含锂,锌和铅的Eu3 +离子掺杂硼酸盐和氟硼酸盐玻璃的荧光性质

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摘要

The influence of glass composition on the fluorescence properties of Eu3+ ions doped borate and fluoroborate glasses modified with Li+, Zn2+ and Pb2+ cations have been investigated. The magnitude of splittings of F-7(1) levels are analyzed using crystal-field (CF) analysis. The relative intensities of 5D(0)->F-7(2) to D-5(0)->F-7(1) transitions, crystal-field strength parameters and decay times of the D-5(0) level have been determined and are found to be lower for Pb based glasses than those of Zn/Li based glasses. The lifetimes of D-1(0) level are found to increase when borate glasses are modified with pure fluorides than with oxides and oxyfluorides. The fluorescence decay of D-5(0) level fits perfect single exponential in the Eu3+:glass systems studied which indicates the absence of energy transfer between Eu3+ ions in these glasses. (c) 2005 Elsevier B.V. All rights reserved.
机译:研究了玻璃组成对掺入Li +,Zn2 +和Pb2 +阳离子的Eu3 +离子掺杂硼酸盐和氟硼酸盐玻璃的荧光性能的影响。使用晶体场(CF)分析来分析F-7(1)能级的分裂程度。 5D(0)-> F-7(2)到D-5(0)-> F-7(1)的相对强度,晶体场强度参数和D-5(0)级的衰减时间已经确定了Pb基玻璃,并且发现其低于Zn / Li基玻璃。当用纯氟化物改性硼酸盐玻璃时,发现D-1(0)的寿命增加,而不是用氧化物和氟氧化物。在研究的Eu3 +:玻璃系统中,D-5(0)能级的荧光衰减完全符合单指数,这表明这些玻璃中Eu3 +离子之间不存在能量转移。 (c)2005 Elsevier B.V.保留所有权利。

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