The influence of nickel ions on the electric behaviour of P2O5–ZnO–Na2O glassy system
Source abstract
Abstract
P2O5–ZnO–Na2O glasses doped with various concentrations of NiO in the range from 0 to 6 mol % are prepared. The measurements of the electric properties of the samples are studied at different temperatures and frequencies. It is found that the dielectric constant decreases with increasing frequency as well as the electric modulus shows relaxation behaviour. The effect of different NiO concentrations and their chemical states in the glass network appears in the analysis of the activation energy, where Ni2+ ions have octahedral and tetrahedral states. From the frequency exponent result, the present samples exhibit correlated barrier hopping (CBH) conduction mechanism. The results show that some samples have great dielectric properties.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Glass properties and applications · Phase-change materials and chalcogenides · Photorefractive and Nonlinear Optics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Physics and Chemistry, Faculty of Education, Matrouh University, Matrouh, Egypt;
Egypt Nanotechnology Center (EGNC), Cairo University, Giza, Egypt;
Basic Science Department, Modern Academy for Engineering and Technology, Cairo, Egypt;
Central Metallurgical Research and Development Institute (CMRDI), Cairo, Egypt;
Department of Physics, Faculty of Science, Cairo University, Giza, Egypt
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