Crystallization of Lanthanide-Ho3+ and Tm3+ Ions Doped Tellurite Glasses

Julian Plewa; Małgorzata Płońska; Katarzyna Osińska; Robert Tomala

doi:10.3390/ma15072662

Crystallization of Lanthanide-Ho³⁺ and Tm³⁺ Ions Doped Tellurite Glasses

Materials (Basel). 2022 Apr 5;15(7):2662. doi: 10.3390/ma15072662.

Authors

Julian Plewa¹, Małgorzata Płońska¹, Katarzyna Osińska¹, Robert Tomala²

Affiliations

¹ Faculty of Science and Technology, Institute of Materials Engineering, University of Silesia in Katowice, 75 Pułku Piechoty Str. 1a, 41-500 Chorzów, Poland.
² Institute of Low Temperature and Structure Research Polish Academy of Sciences, Okólna 2, 50-422 Wrocław, Poland.

Abstract

In the presented work, the tellurite glasses TeO₂-WO₃-ZnO doped with Tm³⁺ and Ho³⁺ ions were prepared by the same glass forming method. X-ray diffraction (XRD) and differential thermal analysis (DTA) techniques were used to study the effects of the forming technology on the thermal and structural properties of the fabricated glasses. After controlled crystallization of investigated glasses, the emission in the VIS- and NIR range was determined. The effect of silver doping on emission intensity was investigated. The value of the activation energy of the glass crystallization process was determined, while the E_a value for pure TeO₂ glass was much lower than for tellurite glasses TeO₂-WO₃-ZnO.

Keywords: crystallization; lanthanide dopants; tellurite glasses.