Effect of the heat treatment conditions on the structure and 2 micron luminescence of thulium-doped oxyfluoride silicate glass-ceramics

Thulium tellurite (TmTeO[Formula: see text] is synthesized by hydrothermal method. It exhibits nearly cuboid-shaped particles along with triangular particles. TmTeO3 is found to be monoclinic. The energy gap is 5.87 eV, the Urbach energy value is 0.287 eV and the refractive index is 1.881. The size of the particle is determined as 107 nm. Optical transitions between energy levels assign absorption and emission peaks. Tm, was found in the oxide matrix as Tellurite. Magnetic susceptibility between 20 K and 300 K decreases with temperature, reaches saturation and aligns all Thulium spins. M–H curve confirms paramagnetic nature at 300 K and feeble ferromagnetic nature at 77 K. Cyclic voltammogram and chronopotentiometry analysis exhibit pseudo-capacitive behavior. The potential window is 0.82. Specific capacitance is found to be 87 F/g. Chronopotentiometry analysis shows 55 F/g specific capacitance. Impedance analysis shows a pseudo-capacitive nature. TmTeO3 symmetrical supercapacitor device is fabricated with potential window of 1.52 V. A specific capacitance of 37.75F/g at 1 A/g, energy density 6.055Wh kg[Formula: see text] and power density 760.99W kg[Formula: see text] was achieved. Impedance analysis shows low series resistance of 2.567[Formula: see text] and charge transfer resistance of 0.473[Formula: see text]. Cyclic performance with 80% specific capacitance retention is observed after 5000 cycles. The TmTeO3 symmetric supercapacitor electrodes possess good electrochemical properties due to wider potential window, long cycle stability and notable energy density.

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Effect of the heat treatment conditions on the structure and 2 micron luminescence of thulium-doped oxyfluoride silicate glass-ceramics

Cited by 4 publications

References 37 publications

Thulium-doped barium tellurite glasses: structural, thermal, linear, and non-linear optical investigations

Thulium-doped barium tellurite glasses: structural, thermal, linear, and non-linear optical investigations

Ce3+ induced broadband enhancement around 2 μm in Tm3+/Ho3+ co-doped tellurite glass

Synthesis and Investigation of Electrochemical Studies on Thulium Tellurite (TmTeO3) for Supercapacitor Electrode Application

Contact Info

Product

Resources

About