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Abstract Transparent electronic technology has many urgent optoelectronic device applications. A key component of plasmonic materials in conventional semiconductors is the wide band gap of oxide thin films. Although transparent electronic materials have been developed for visible and near-infrared wavelengths, systems incorporating mid-infrared and far-infrared spectra are difficult to achieve. In this study, hydrated magnesium-carbon films, a new type of non-oxide transparent conductive thin films with a magnesium hydroxide structure, were generated using the three-step method. After annealing treatment, larger crystals in the thin films typically exhibited superior film resistivity, with conductivity values of approximately 8.63 × 10−3 Ω m. Due to the free electron concentration was not more than 1020 cm−3, the films demonstrated excellent optical properties, with plasma wavelength values of approximately 8 μm for infrared transmittance above 70%. After annealing, due to the Moss-Burstein (M-B) effect, the visible light transmittance was greater than 85% and the optical bandgap shifted towards the blue region. In addition, the influences of the sputtering power of the carbon target on the properties of hydrated magnesium-carbon film were also discussed in this paper. Graphical abstract Image 1 Highlights • We prepare hydrated magnesium-carbon films using the three-step method. • We analyze the effect of annealing on structural, electrical, and optical features. • Annealing leads to crystal growth, superior film resistivity, and good conductivity. • Films exhibit excellent optical properties, particularly for far-infrared ranges. • The films can replace TCO in the application of optical-electronic devices. [ABSTRACT FROM AUTHOR]

The electrical characteristics (including node voltage, branch current, equivalent resistance) of a complex n -ladder network are studied by establishing recursive model with voltage parameters. On this network, not only a load is embedded on any node, but also an arbitrary right boundary resistance is contained. In this paper, the difference equation model of voltage is first established by network analysis, and then the boundary condition equation model is established according to the constraints. The general solution and solution of the difference equation are derived, and then the voltage formula of any node, branch current and equivalent resistance are obtained. The formula obtained in this paper is multifunctional and universal, and the results of many special cases are contained. The equivalent complex impedance of LC ladder network is further studied, and its irregular oscillation and resonance characteristics are revealed. [ABSTRACT FROM AUTHOR]