Characterisation of the charge transport mechanism in pulsed laser deposited AlN:Si films

I. Minkov, S. Simeonov, A. Szekeres, Z. Fogarassy, G. Socol, C. Ristoscu, I. Mihăilescu
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Abstract

AlN films, doped with Si, were deposited on p-Si substrates by pulsed laser deposition (PLD) in nitrogen ambient kept at 0.1 or 10 Pa. MIS structures with incorporated PLD AlN:Si films were formed and their current-voltage, I-V, and 1 MHz C-V characteristics were measured. The analysis of obtained characteristics of these MIS structures revealed the important role of aluminium vacancies in charge transport through the films.
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脉冲激光沉积AlN:Si薄膜中电荷输运机制的表征
采用脉冲激光沉积(PLD)技术,在0.1或10 Pa的氮气环境中,在p-Si衬底上沉积了掺杂Si的AlN薄膜。制备了集成PLD AlN:Si薄膜的MIS结构,并测量了其电流-电压、I-V和1 MHz C-V特性。对这些MIS结构特性的分析揭示了铝空位在薄膜中电荷输运中的重要作用。
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