Optical Applications of Europium ion doped Silicate Glasses: W-LED

Abstract

Abstract Europium ion doped silicate glasses are prepared by melt quench method with a novel composition for white Light Emitting Diode (LED). The investigating sample is havig high density and refractive index which is useful for optical applications. The hryby criteria value of these glass material is high and having high thermal stability. These glasses are assigned to Si-O- Eu and Si-O-Si stretch and bending bonds are forms with respect to their frequencies. High intensity absorption peaks are observed at 377 and 609 nm, The direct and indirect energy band gap values are decreasing as the europium ion concentration increases. The Judd – Oflelt parameters are calculated by using emission spectra of prepared glass sample. Ω2, Ω4 and Ω6 are the intensity parameters of Europium ion-doped Silicate glasses. Since the parameter Ω2 directly relates to the asymmetry of the local environment around the trivalent rare earth ions (Eu3+), it indicates the covalent nature between Europium ions and legand anaions. . The CIE plot shows that the prepared 5 glass sample SiEu 1 to SiEu 5 emits white light at an excitation wavelength of 377 nm; these glare are utilised for white LEDs. europium-doped silicate glasses play a crucial role in LED technology by enhancing the color quality, efficiency, and versatility of LED lighting for a wide range of applications, from general lighting to displays and more. Their ability to convert high-energy light into visible light with specific colors makes them valuable components in the world of LED technology.