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Photoluminescence properties of Sm3+ ions doped Bismuth Boro tellurite glasses
Solid State Sciences ( IF 3.4 ) Pub Date : 2021-04-16 , DOI: 10.1016/j.solidstatesciences.2021.106609
Y. Anantha lakshmi , K. Swapna , Sk. Mahamuda , M. Venkateswarlu , A.S. Rao

A set of Bismuth Borotellurite glasses (BiBT) doped with samarium (Sm3+) ions were successfully processed by a conventional melt quenching process and characterized by various well-known techniques such as EDX, absorption measurements, emission, spectral decay measurements. EDX have been used to analyze the structural properties. Physical properties like transmission factor (Toptical), reflection loss (Rloss), metallization criterion (Mcriterion), etc., were evaluated. By correlating the Judd-Ofelt (J-O) intensity parameters with emission spectral data, various radiative parameters were evaluated for the prominent fluorescent levels of Sm3+ ions arising from 4G5/2 to 6HJ (J = 5/2,7/2, 9/2). The emission cross-section, branching ratio, quantum efficiency values evaluated for the prominent emission band 4G5/2 → 6H7/2 observed at 599 nm indicates the suitability of the as prepared glasses for visible reddish-orange luminescent applications. The CIE coordinates evaluated from the emission spectral features were in consonance with the results obtained from the J-O analysis.



中文翻译:

Sm 3+离子掺杂铋硼酸碲矿玻璃的光致发光特性

一组掺有((Sm 3+)离子的铋硼酸铋玻璃(BiBT)已通过常规的熔体淬火工艺成功加工,并通过各种众所周知的技术进行了表征,例如EDX,吸收测量,发射,光谱衰减测量。EDX已用于分析结构特性。评估了诸如透射系数(T光学),反射损耗(R损耗),金属化标准(M标准)等物理性能。通过将Judd-Ofelt(JO)强度参数与发射光谱数据相关联,对各种辐射参数进行了评估,以评估4 G 5/2引起的Sm 3+离子的显着荧光水平。6 H J(J = 5 / 2,7 / 2,9/2)。在599 nm处观察到的突出发射带4 G 5/2  →  6 H 7/2的发射截面,支化比,量子效率值表明,所制备的玻璃适合于可见的红橙色发光应用。从发射光谱特征评估的CIE坐标与从JO分析获得的结果一致。

更新日期:2021-04-16
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