MUMBAI, India, July 11 -- Intellectual Property India has published a patent application (202541060589 A) filed by Saveetha Engineering College, Chennai, Tamil Nadu, on June 25, for 'development of terbium-doped zinc-silver tellurite glass for high-performance temperature sensing.'
Inventor(s) include Arokia Nerling Rasoni G; and Dr. Vinothkumar Panjanathan.
The application for the patent was published on July 11, under issue no. 28/2025.
According to the abstract released by the Intellectual Property India: "A new type of glass was developed by doping holmium ions (Ho'+) into a silvertellurite- based composition using the melt-quenching method. The final composition included Te02, ZnO, CaO, Ti02, AgO, and a small amount ofTb20,. X-ray diffraction (XRD) confirmed that the glass was amorphous in nature. FTIR and Raman spectroscopy revealed the key structural units and bonding in the glass network. UV-Visible spectroscopy was used to detem1ine the optical band gap, refractive index, and optical conductivity. Surface features and elemental composition were analysed using SEM and EDS techniques. Photoluminescence (PL) studies showed clear excitation and emission peaks from Ho>+ ions. CIE chromaticity coordinates were calculated to assess the color quality of the emitted light. Thermoluminescence (TL) and thermally stimulated luminescence (TSL) were also examined. These thermal studies indicated the presence of stable trap centers in the glass. The material showed strong light-emission properties under UV excitation. Its structure supported efficient energy transfer and minimized energy loss. The glass exhibited good thermal and optical stability. All measurements confim1ed its suitability for thermal sensmg applications. This new glass can be used in sensor devices for temperature or radiation detection."
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