Macro-aligned carbon Nanotube–Polymer matrix by dielectrophoresis and transferring process
| Autor: | Youngjun Song, Seunghwan Noh |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
lcsh:TN1-997
Materials science Fabrication CNT 02 engineering and technology Substrate (electronics) Carbon nanotube Conductivity Alternating current electric field 01 natural sciences law.invention Biomaterials law 0103 physical sciences medicine Self-Alignment lcsh:Mining engineering. Metallurgy 010302 applied physics chemistry.chemical_classification DEP Metals and Alloys Polymer Dielectrophoresis 021001 nanoscience & nanotechnology Surfaces Coatings and Films Carboxymethyl cellulose chemistry Chemical engineering Electrode Ceramics and Composites 0210 nano-technology medicine.drug |
| Zdroj: | Journal of Materials Research and Technology, Vol 9, Iss 3, Pp 4550-4557 (2020) |
| ISSN: | 2238-7854 |
| Popis: | Single-walled carbon nanotube (SWCNT)-based polymer matrix composites have been developed for various applications such as transparent electrodes and heaters. To enhance the conductivity of the SWCNT/polymer matrix, diverse alignment technologies for the directional alignment of carbon nanoparticles in the polymer matrix have been studied. In the present study, we demonstrate macroscale dielectrophoretic self-alignment of SWCNTs with carboxymethyl cellulose (CMC) using a high alternating current (AC) voltage (150 Vpp, 10 kHz) without the use of a semiconductor for the fabrication of electrodes. Owing to the latitudinal alignment of the SWCNTs by the AC field, the resistance values of the SWCNT substrates differ in the directions. Furthermore, transfer of the aligned SWCNTs onto the nitrocellulose (NC) substrate using dimethyl sulfoxide (DMSO) evaporation yields a one-directional multiple aligned SWCNTs/transparent NC sheet that provides approximately 3.3 times higher conductivity than that achieved by alignment in another direction. |
| Databáze: | OpenAIRE |
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