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Luminescence and Judd-Ofelt study of Ho3+/Ho3+-Yb3+ doped/ codoped lead tellurite glasses for multifunctional applications
Journal of Luminescence ( IF 3.3 ) Pub Date : 2021-07-08 , DOI: 10.1016/j.jlumin.2021.118319
Mohd Azam 1 , Deepak Kumar Mohanty 2 , Vineet Kumar Rai 3 , K. Singh 1
Affiliation  

In the present study the various spectroscopic parameters of the triply ionized holmium (Ho3+) doped TeO2–Pb3O4 (TPO) glass fabricated through melting and quenching technique have been investigated by using the Judd-Ofelt (J-O) analysis. The determined higher Judd-Ofelt intensity parameter Ω2 signifies the existing covalent bonding. The transition 5S2+5F45I8 corresponding to the peaked energy at 18552.9 cm−1 shows the largest radiative transition probability (3315.5 s−1) and gives the confirmation for the observed strong green emission in the Upconversion (UC) study. The UC spectroscopy of the Ho3+/Yb3+ ions doped and codoped TPO glasses upon 980 nm CW laser excitation have been analyzed. The effect on the UC luminescence intensity of Ho3+: TPO glass in the presence of Yb3+ ions has been studied and the intensity enhancement processes are explored. On the basis of present investigations, the Ho3+/Yb3+ codoped TPO glass can be utilized as good optical upconverter and yellowish green display devices.



中文翻译:

用于多功能应用的 Ho 3+ /Ho 3+ -Yb 3+掺杂/共掺杂铅碲酸盐玻璃的发光和 Judd-Ofelt 研究

在本研究中,通过使用 Judd-Ofelt (JO) 分析法研究了通过熔化和淬火技术制造的三重电离钬 (Ho 3+ ) 掺杂的 TeO 2 –Pb 3 O 4 (TPO) 玻璃的各种光谱参数。确定的较高 Judd-Ofelt 强度参数 Ω 2表示现有的共价键合。对应于 18552.9 cm -1处的峰值能量的跃迁5 S 2 + 5 F 45 I 8显示出最大的辐射跃迁概率(3315.5 s -1) 并证实了上转换 (UC) 研究中观察到的强绿色发射。已分析了 Ho 3+ /Yb 3+离子掺杂和共掺杂 TPO 玻璃在 980 nm CW 激光激发下的 UC 光谱。已经研究了在 Yb 3+离子存在下对 Ho 3+ : TPO 玻璃的 UC 发光强度的影响,并探索了强度增强过程。根据目前的研究,Ho 3+ /Yb 3+共掺杂TPO玻璃可以作为良好的光学上变频器和黄绿色显示器件。

更新日期:2021-07-14
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