Optical characterization of highly conductive single-wall carbon-nanotube transparent electrodes
Optical characterization of highly conductive single-wall carbon-nanotube transparent electrodes
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DOI：
10.1103/physrevb.75.235410
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发表时间：
2007-06-01
影响因子：
3.7
通讯作者：
Glatkowski, P.
中科院分区：
文献类型：
--
作者：
Barnes, T. M.;Van de Lagemaat, J.;Glatkowski, P.
我们报告的单壁碳纳米管（SWCNTs）的导电薄膜的光色散特性的一个完整的表征。所研究的膜在玻璃和石英衬底上表现出50和1000 Ω/sq之间的薄层电阻和65%和95%之间的光学折射率。这些薄膜有可能取代透明导电氧化物在应用中，如photopolics和平板显示器，但是，他们的光学性能还没有得到充分的理解。单壁碳纳米管薄膜被证明是空穴导体，潜在地使它们能够用作空穴选择性接触，并允许替代器件设计。基本的光学，形态，和电特性的薄膜在这里，并介绍了一个唯象光学模型，准确地描述了薄膜的光学行为。特别注意的是椭圆偏振测量和彻底的评价的反射和吸收光谱的薄膜。
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 Omega/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.