Publication Type : Journal Article
Publisher : Elsevier BV
Source : Inorganic Chemistry Communications
Url : https://doi.org/10.1016/j.inoche.2023.111395
Keywords : Luminescence, Rare earth ions, Up-conversion, Tellurite glasses
Campus : Amaravati
School : School of Engineering
Department : Physics
Year : 2023
Abstract : Glasses with the chemical composition of (50-x-y) TeO2-30ZnO-10YF3-10NaF-0.5Tm2O3-yYb2O3 (y = 0.5, 1.0, and 3.0 mol%) are developed using a melt-quenching method. Measurements of absorption, excitation, down and up-conversion emission spectra, and decay times were used to investigate the energy transfer processes. Cross-relaxation mechanisms caused the emission intensity to decrease at higher Tm3+ ion concentrations. The Tm3+/Yb3+ co-doped glasses showed strong up-conversion emission under the diode laser excitation at 978 nm. Studies on the dependence of pump energy revealed the mechanism underlying the up-conversion luminescence. According to the findings, the developed Tm3+/Yb3+co-doped glasses are also found to be a promising option for spectral conversion and emission (visible and near infrared) applications.
Cite this Research Publication : Sharafudeen Kaniyarakkal, Kesavulu Culala Rajasekharaudayar, Rajesh Dagupati, Yang Li, Sabina Drewniak, Zhi Chen, Vijayakumar Sadasivan Nair, Shiju Edappadikkunnummal, Down-/Up-conversion luminescence behaviors and energy transfer analysis in Tm3+ and Tm3+/Yb3+ co-doped tellurite glasses, Inorganic Chemistry Communications, Elsevier BV, 2023, https://doi.org/10.1016/j.inoche.2023.111395