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Structure and luminescent properties of Sm3+-doped metaphosphate glasses
Optical Materials ( IF 3.9 ) Pub Date : 2021-09-13 , DOI: 10.1016/j.optmat.2021.111571
Mohamed Atef Cherbib 1, 2 , Ismail Khattech 1 , Habib Elhouichet 3, 4
Affiliation  

This paper investigates the effects of the phosphate network topology on the luminescent properties of mixed sodium/alkaline earths metaphosphate glasses doped with Sm2O3. The glasses were obtained using the melt quenching technique and analysed preliminarily by X-ray diffraction to confirm the vitreous nature of the samples. Raman spectroscopy, density, and thermal analyses were pursued to validate the persistence of metaphosphate chains and examine dopant-induced effects on the phosphate network. The fluorescence analyses of the glasses show the regular emission lines of Sm3+ starting from the 4G5/2 energy level to the 6HJ/2 manifold with the largest transition in the red-orange part at 595 nm. An additional emission line starting from the higher excited state 4F3/2 to 6H5/2 between 520 and 540 nm was also detected with different intensities in all the studied compositions. This peculiar luminescence was correlated with the structure/topology of the glasses using the Judd-Ofelt theory together with the radiative and non-radiative properties of the host compositions.



中文翻译:

Sm3+掺杂偏磷酸盐玻璃的结构和发光性能

本文研究了磷酸盐网络拓扑结构对掺杂 Sm 2 O 3的混合钠/碱土金属偏磷酸盐玻璃发光性能的影响。玻璃是使用熔体淬火技术获得的,并通过 X 射线衍射进行初步分析,以确认样品的玻璃质性质。进行拉曼光谱、密度和热分析以验证偏磷酸盐链的持久性并检查掺杂剂对磷酸盐网络的影响。玻璃的荧光分析显示从4 G 5/2能级到6 H J/2的 Sm 3+的规则发射线在 595 nm 处的红橙色部分具有最大跃迁的流形。在所有研究的组成中,还检测到从更高激发态4 F 3/26 H 5/2之间在 520 和 540 nm 之间具有不同强度的附加发射线。这种特殊的发光与使用 Judd-Ofelt 理论的玻璃的结构/拓扑以及主体组合物的辐射和非辐射特性相关。

更新日期:2021-09-13
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