The Electrical Properties of Plasma-Deposited Thin Films Derived from Pelargonium graveolens
AbstractInherently volatile at atmospheric pressure and room temperature, plant-derived precursors present an interesting human-health-friendly precursor for the chemical vapour deposition of thin films. The electrical properties of films derived from Pelargonium graveolens (geranium) were investigated in metal–insulator–metal (MIM) structures. Thin polymer-like films were deposited using plasma-enhanced synthesis under various plasma input power. The J–V characteristics of thus-fabricated MIM were then studied in order to determine the direct current (DC) conduction mechanism of the plasma polymer layers. It was found that the capacitance of the plasma-deposited films decreases at low frequencies (C ≈ 10−11) and remains at a relatively constant value (C ≈ 10−10) at high frequencies. These films also have a low dielectric constant across a wide range of frequencies that decreases as the input RF power increases. The conductivity was determined to be around 10−16–10−17 Ω−1 m−1, which is typical for insulating materials. The Richardson–Schottky mechanism might dominate charge transport in the higher field region for geranium thin films. View Full-Text
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Al-Jumaili, A.; Alancherry, S.; Bazaka, K.; Jacob, M.V. The Electrical Properties of Plasma-Deposited Thin Films Derived from Pelargonium graveolens. Electronics 2017, 6, 86.
Al-Jumaili A, Alancherry S, Bazaka K, Jacob MV. The Electrical Properties of Plasma-Deposited Thin Films Derived from Pelargonium graveolens. Electronics. 2017; 6(4):86.Chicago/Turabian Style
Al-Jumaili, Ahmed; Alancherry, Surjith; Bazaka, Kateryna; Jacob, Mohan V. 2017. "The Electrical Properties of Plasma-Deposited Thin Films Derived from Pelargonium graveolens." Electronics 6, no. 4: 86.