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Optical characterization of highly conductive single-wall carbon-nanotube transparent electrodes

机译：高导电性单壁碳纳米管透明电极的光学表征

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摘要

We report on a complete characterization of the optical dispersion properties of conducting thin films of single-wall carbon nanotubes (SWCNTs). The films studied exhibit sheet resistances between 50 and 1000 Ω/sq and optical transparencies between 65% and 95% on glass and quartz substrates. These films have the potential to replace transparent conducting oxides in applications such as photovoltaics and flat-panel displays; however, their optical properties are not sufficiently well understood. The SWCNT films are shown to be hole conductors, potentially enabling their use as hole-selective contacts and allowing alternative device designs. The fundamental optical, morphological, and electrical characteristics of the films are presented here, and a phenomenological optical model that accurately describes the optical behavior of the films is introduced. Particular attention is paid to ellipsometry measurements and thorough evaluation of the reflection and absorption spectra of the films.
机译：我们报告了单壁碳纳米管（SWCNTs）导电薄膜的光学色散特性的完整表征。研究的薄膜在玻璃和石英基板上的薄层电阻在50到1000Ω/ sq之间，光学透明度在65％到95％之间。这些薄膜在光伏和平板显示器等应用中具有替代透明导电氧化物的潜力。然而，它们的光学性质还没有被很好地理解。所示的SWCNT膜是空穴导体，潜在地使其可以用作空穴选择触点，并允许进行替代的器件设计。此处介绍了薄膜的基本光学，形态和电学特性，并介绍了可精确描述薄膜光学行为的现象学光学模型。特别要注意椭圆偏振测量和对薄膜反射和吸收光谱的全面评估。

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