A Template‐Free Method Towards Conducting Polymer Nanostructures
A Template‐Free Method Towards Conducting Polymer Nanostructures
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DOI：
10.1002/adma.200800466
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发表时间：
2008-08
影响因子：
29.4
通讯作者：
M. Wan
中科院分区：
文献类型：
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作者：
M. Wan
导电聚合物纳米结构近年来在纳米科学和纳米技术中受到特别关注，因为它们具有高度π共轭的聚合物链和类似金属的导电性，因此它们不仅可以被视为优秀的分子线，而且可以作为形成纳米器件的基本单元。尽管硬模板法、软模板法、静电纺丝技术等各种方法被广泛用于合成或制造导电聚合物纳米结构及其复合纳米结构，但目前使用的每种方法都有其缺点。因此，寻找一种简单、有效和可控的方法来形成导电聚合物纳米结构是很有必要的。与其他纳米材料类似，必须考虑尺寸（在这些情况下为1 - 100nm）对导电聚合物纳米结构性能的影响。为了能够了解导电聚合物纳米结构的纯电学性质，需要对单个纳米管或纳米线进行电学测量。与体导电聚合物相比，导电聚合物纳米结构在技术应用中有望表现出更好的性能，因为其纳米尺度尺寸所产生的独特特性：高导电性、大表面积和轻重量。因此，开发导电聚合物纳米结构的有前途的应用也是值得期待的。针对上述问题，本课题重点研究导电聚合物纳米结构的合成方法及其形成机理。通过四探针方法测量导电聚合物单纳米管的电学和输运特性，以及这种无模板合成的导电聚合物纳米结构作为新的微波吸收材料和可逆润湿性引导的传感器的前景也令人感兴趣。本文报告了我们的一些主要结果，并回顾了其他人的一些重要贡献。
Conducting polymer nanostructures have recently received special attention in nanoscience and nanotechnology because of their highly π‐conjugated polymeric chains and metal‐like conductivity, such that they can be regarded not only as excellent molecular wires, but also as basic units for the formation of nanodevices. Although various approaches, such as hard‐template methods, soft‐template methods, electrospinning technology, and so on are widely employed to synthesize or fabricate conducting polymer nanostructures and their composite nanostructures, each of the currently used methods possess disadvantages. Therefore, finding a facile, efficient, and controlled method of forming conducting polymer nanostructures is desirable. Similar to other nanomaterials, the effect of size (in these cases 1–100 nm) on the properties of the conducting polymer nanostructures must be considered. Electrical measurements of single nanotubes or nanowires are desirable in order to be able to understand the pure electrical properties of conducting polymer nanostructures. Compared with bulk conducting polymers, conducting polymer nanostructures are expected to display improved performance in technological applications because of the unique properties arising from their nanometer‐scaled size: high conductivity, large surface area, and light weight. Thus, it is also desirable to develop promising applications for conducting polymer nanostructures. In accordance with the issues described above, our research focuses on a new synthesis method to form conducting polymer nanostructures and on the related formation mechanism of the resultant nanostructures. The electrical and transport properties of single nanotubes of conducting polymer, measured by a four‐probe method, and promising applications of such template‐free‐synthesized conducting polymer nanostructures as new microwave absorbing materials and sensors guided by a reversible wettability are also of interest. This article reports some of our main results and reviews some important contributions of others.