Synthesis and modification of photoluminescence and dielectric properties of novel fluorophosphate glass by incorporating different transition metal oxides for optoelectronic applications

Novel fluorophosphate glass systems with the chemical composition of 20NaF-60P2O5-20Na2O doped with 3 wt % of different transition metals (CuO, CoO, Fe2O3 , and NiO) were fabricated by conventional melting. The in-fluence of transition metals doping on the photoluminescence (PL) and dielectric properties of base systems is investigated. The sample doped with Fe2O3 displayed the lowest PL intensity compared to the highest PL in-tensity for CuO. Adding CuO and Fe2O3 to the base composite enhances the dielectric parameters slightly. The highest energy density values are observed for the base composite doped with CuO, and Fe2O3 , while the lowest energy density values are detected for NiO and CoO-doped systems. The improved ac conductivity of the base system upon adding CuO and Fe2O3 is ascribed to increasing the polaron hopping between their ions in the valence states. However, adding CoO and NiO to the base composite may hinder the charge carriers' motion and decrease its conductivity. The non-Debye-type is the dominant relaxation process for all the systems under investigation.

Automated summary

Novel fluorophosphate glass systems were fabricated via conventional melting with the composition of 20NaF-60P2O5-20Na2O doped with 3 wt % transition metals (CuO, CoO, Fe2O3 , and NiO). The effects of transition metal doping on the photoluminescence (PL) and dielectric properties of the base systems were investigated. The sample doped with Fe2O3 showed the lowest PL intensity, while CuO displayed the highest PL intensity. Adding CuO and Fe2O3 enhanced the dielectric parameters slightly. The base composite doped with CuO and Fe2O3 exhibited the highest energy density values, while NiO and CoO-doped systems had the lowest energy density values. The ac conductivity of the base system was improved by CuO and Fe2O3 doping, while CoO and NiO hindered the charge carriers' motion and decreased conductivity. Non-Debye-type relaxation processes were dominant in all the investigated systems.