Scalable and Surfactant-Free Process for Single-Walled Carbon Nanotube Based Transparent Conductive Thin Films via Layer-by-Layer Assembly
Scalable and Surfactant-Free Process for Single-Walled Carbon Nanotube Based Transparent Conductive Thin Films via Layer-by-Layer Assembly
复制标题
通过逐层组装制备基于单壁碳纳米管的透明导电薄膜的可扩展且无表面活性剂的工艺
DOI：
10.1021/jp101536r
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发表时间：
2010
影响因子：
3.7
通讯作者：
C. Tsai
中科院分区：
文献类型：
--
作者：
C. Su;Ang;Yi;Ching;C. Weng;Pen;Fu;K. Leou;C. Tsai
在本文中，我们展示了一种无表面活性剂的方法，通过层接层（LBL）沉积的融合来制造具有均匀性能（光学和电学）的大面积swcnts薄膜透明导电（swcnts - tc）电极。经酸（HNO3/H2SO4）和SOCl2处理后，swcnts - tc电极的光学和电学性能与典型金属氧化物电极相当。测得swcnts - tc电极的片电阻为~ 34.9 Ω/sq，在550 nm处透射率为~ 71.9%。此外，我们的工作解决了一个长期的争论，即酸处理后swcnts - tc电极电导率的提高是否如所提出的那样归因于表面活性剂的充分去除；我们的结果隐含地表明，电导率的提高可能是由于酸处理后SWCNTs和掺杂物质之间的电荷转移引起费米能级的下移。此外，高质量(I(D)/I(G) < 1) a…
In this paper, we demonstrate a surfactant-free method to fabricate large-area SWCNT film based transparent conductive (SWCNT-TC) electrodes with uniform properties (optical and electrical) via the fusion of layer-by-layer (LBL) deposition. The optical and electrical properties of SWCNT-TC electrodes are comparable to those of typical metal oxide electrodes after the SWCNT-TC electrode is further treated by acid (HNO3/H2SO4) and SOCl2. The sheet resistance of SWCNT-TC electrodes is measured to be ∼34.9 Ω/sq and the transmittance is ∼71.9% at 550 nm. Moreover, our work addressed a long-term argument regarding whether the improvement in conductivity of SWCNT-TC electrodes after acid treatment is, as was proposed, attributed to sufficient removal of surfactant; our result implicitly indicates that the improved conductivity may be due to the down-shifting of the Fermi level induced by the charge transfer between the SWCNTs and doped species after acid treatment. In addition, the high quality (I(D)/I(G) < 1) a...