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首页> 外文期刊>Optical Materials >Structural influence of yttria, scandia and hafnia on emission features of samarium ions in lead antimonate glass system
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Structural influence of yttria, scandia and hafnia on emission features of samarium ions in lead antimonate glass system

机译：氧化钇，scan和氧化f的结构对锑酸铅玻璃体系中mar离子发射特性的影响

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摘要

Luminescence features of samarium ions in non-conventional antimonate oxide glasses added with HfO2, Y2O3 and Sc2O3 were investigated. From absorption and luminescence spectra various radiative parameters (associated with orange emission transition viz., (4)G(5/2 )-> H-6(7/2)) that give the information on luminescence efficiency of Sm3+ were calculated. The calculated values of radiative parameters are observed to be the largest for hafnia added glasses when compared with those of other two glasses. The infrared spectra have indicated that the trivalent antimony ions take part glass network forming positions with SbO3 pyramids. The spectra further suggested the maximum concentration ofstructural defects in hafnia mixed glasses. Due to this reason, the vibrational losses (phonon losses) of PL output are expected to be decreased. The observed highest luminescence efficiency of Sm3+ ions in HfO2 added glasses with respect to that of Y2O3 and Sc2O3 added antimonate glasses is attributed to this reason.
机译：研究了添加HfO2，Y2O3和Sc2O3的非常规锑氧化物玻璃中sa离子的发光特性。从吸收和发光光谱中，计算得出有关Sm3 +发光效率的信息的各种辐射参数（与橙色发射跃迁相关，即（4）G（5/2）-> H-6（7/2））。与其他两副眼镜相比，观察到的添加氧化镁的眼镜的辐射参数计算值最大。红外光谱表明，三价锑离子与SbO3金字塔一起形成玻璃网络的一部分。光谱进一步表明，氧化镁混合玻璃中结构缺陷的最大浓度。由于这个原因，预期PL输出的振动损耗（声子损耗）将减小。相对于Y2O3和Sc2O3锑酸盐玻璃，观察到的添加HfO2的玻璃中Sm3 +离子的最高发光效率归因于该原因。

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