Electrical property enhancement of carbon nanotube fibers from post treatments
| Autor: | Daniel Jewell, Hai M. Duong, Thang Q. Tran, Peng Liu, Dennis C.M. Hu |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Materials science
Contact resistance chemistry.chemical_element Nanotechnology 02 engineering and technology Carbon nanotube 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Copper 0104 chemical sciences law.invention Colloid and Surface Chemistry chemistry Electrical resistivity and conductivity law Surface modification Fiber 0210 nano-technology Current density Nanoscopic scale |
| Zdroj: | Colloids and Surfaces A: Physicochemical and Engineering Aspects. 509:384-389 |
| ISSN: | 0927-7757 |
| Popis: | Utilizing the superior properties of individual carbon nanotubes (CNTs), the production of continuous CNT fibers has paved the way for novel CNT macroscale applications. However, it is still a great challenge to create highly electrically-conductive CNT fibers due to the poor transfer of electrical property from nanoscale individual CNTs to macroscale CNT fibers. Here, we report a fast and effective post treatment method consisting of mechanical condensation and acid treatment to enhance the electrical conductivity of the CNT fiber by a factor of 9. Such great enhancement is attributed to the surface modification effects during the post treatments, resulting in the lower contact resistance and stronger inter-CNT interactions. Moreover, the maximum current density of the acid-treated CNT fiber is up to 66000 A/cm2, competitive to the conventional copper wires. The promising results in this study enable the CNT fibers novel materials for electrical wiring applications. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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