Nallamala Kiran, Shaik Nayab Rasool, Baddela Munisudhakar, Shaik Shabeena, Midde Reddi Babu
Department of Physics, Rajeev Gandhi Memorial College of Engineering & Technology, Nandyal, India.
Department of Physics, SV College of Engineering, Karakambadi Road, Tirupati, India.
Luminescence. 2023 Oct;38(10):1768-1779. doi: 10.1002/bio.4563. Epub 2023 Sep 1.
Different concentrations of Sm O -doped lead borosilicate glass were synthesized using a melt-quenching method and their characteristics were analyzed using X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectroscopy absorption, emission, and decay curves. From the XRD patterns, the noncrystalline nature of titled glass was confirmed. The structural groups that existed in the host glass were observed from FTIR spectra. The Judd-Ofelt (JO) intensity parameters and oscillator strengths were derived from the absorption spectra and compared with various reported systems. The excitation luminescence levels of the Sm ion radiative properties were further computed using the JO intensity parameters. Effective bandwidth, emission cross-sections (σ ), and several lasing properties were assessed from emission spectra and compared with other reported glass systems. The decay curves of the G level of Sm ion were also been measured and examined. Additionally, the colour coordinates of the Commission International de I'Éclairage chromaticity were assessed. The titled glass were suitable for visible reddish orange luminescence devices based on all obtained parameters.
采用熔融淬火法合成了不同浓度的掺钐氧化铅硼硅酸盐玻璃，并利用X射线衍射（XRD）和傅里叶变换红外（FTIR）光谱对其吸收、发射和衰减曲线进行了分析。从XRD图谱中，证实了标题玻璃的非晶态性质。从FTIR光谱中观察到主体玻璃中存在的结构基团。从吸收光谱中导出Judd-Ofelt（JO）强度参数和振子强度，并与各种报道的体系进行比较。利用JO强度参数进一步计算了Sm离子辐射性质的激发发光能级。从发射光谱中评估有效带宽、发射截面（σ）和几种激光特性，并与其他报道的玻璃体系进行比较。还测量并研究了Sm离子G能级的衰减曲线。此外，评估了国际照明委员会色度的色坐标。基于所有获得的参数，标题玻璃适用于可见红橙色发光器件。
