Gomaa, Hosam M.Saudi, H. A.Issa, Shams A. M.Zakaly, Hesham M. H.2025-04-182025-04-182024Gomaa, H. M., Saudi, H. A., Issa, S. A., & Zakaly, H. M. (2024). Ni-doped and co-doped borate glasses for energy storage and UV-blocking applications. Applied Physics A, 130(7), 506.0947-83961432-0630http://dx.doi.org/10.1007/s00339-024-07683-5https://hdl.handle.net/20.500.12713/6948In this work, the calcium-lead arseborate glass's basic components were doped with an equal amounts of NiCl2 and CoCl2, separately, to obtain two different glass samples that were dubbed the Ni-doped sample and the Co-doped sample. The fast quenching method was used to prepare that samples, while UV-vis and X-ray diffraction (XRD) patterns were used to characterize them. The XRD patterns of Ni-doped and Co-doped glass samples reveal amorphous structures with short-range order. While both contain similar components, nickel and cobalt additions result in distinct diffraction humps. The Ni-doped sample exhibits wider transmission windows and sharper band edges compared to the Co-doped sample. Additionally, Ni-doped glass shows higher maximum absorbance, suggesting suitability for energy storage, while Co-doped glass is better for UV-blocking applications. The absorption index, crucial for light-matter interaction, reflects optical relaxation processes and is influenced by material composition and structure. Dielectric loss factors were determined using the Drude-Lorentz model, highlighting the importance of understanding absorption index and optical relaxation in materials science. The resonance frequency of Co-doped glass is lower than that of Ni-doped glass, resulting in the absorption index and dielectric loss reaching their maxima at lower energy values for Co-doped glass. Furthermore, the Plasmon frequency in Co-doped glass is higher than in Ni-doped glass, indicating its superior ability to screen incident photons. Additionally, the scattering time for Co-doped glass is lower than for Ni-doped glass, suggesting that the Ni-doped sample has larger interatomic distances.eninfo:eu-repo/semantics/closedAccessArseborate GlassCo-Doped GlassNi-Doped GlassDurde-Lorantz ModelArticle130716WOS:0012515508000022-s2.0-85196391075Q210.1007/s00339-024-07683-5Q2