Abstract
In electron-positron plasmas some of the plasma modes are decoupled due to the equal charge to mass ratio of both species. The dispersion properties of the propagation of linear waves in degenerate electron-positron magnetoplasma are investigated. By using the quantum hydrodynamic equations with magnetic fields of the Wigner-Maxwell system, we have obtained a set of new dispersion relations in which ions' motions are not considered. The general dielectric tensor is derived using the electron and positron densities and its momentum response to the quantum effects due to Bohm potential and the statistical effect of Femi temperature. It has been demonstrated the importance of magnetic field and its role with the quantum effects in these plasmas which support the propagation of electromagnetic linear waves. Besides, the dispersion relations in case of parallel and perpendicular modes are investigated for different positron-electron density ratios.
Highlights
Zinc oxide thin films have been intensively investigated for optical and electrical applications, such as flat-panel displays, liquid crystal displays, organic lightemitting diodes, thin-film transistors, and thin-film solar cells [1,2,3,4]
This paper investigated the influence of aluminum and magnesium doping on the optical and electrical properties of zinc oxide (ZnO) thin films for solar cell application
The crystal structure of ZnO films were investigated through X-ray diffraction (XRD)
Summary
Zinc oxide thin films have been intensively investigated for optical and electrical applications, such as flat-panel displays, liquid crystal displays, organic lightemitting diodes, thin-film transistors, and thin-film solar cells [1,2,3,4]. More deposition techniques are still required to produce quality thin films and to overcome the shortcomings of unstable electrical properties, high temperature treatment and pressure reported by various researchers. [11] reported that among the zinc oxide films doped with group II elements such as barium, gallium and indium, (AZO) thin films presented the lowest resistivity. We wish to investigate the optical and electrical properties of Mg-doped ZnO and Al-doped ZnO thin films using sol-gel spin coating method for solar cell applications. This technique of film deposition is sparsely reported in the literature
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