The role of medium on the assembly of carbon nanotube by dielectrophoresis
Dielectrophoresis (DEP) is an electrode-medium process used to control the movement of Carbon nanotubes (CNTs) within a solution under nonuniform electric fields. CNTs are typically dispersed into a solvent to form a homogeneous suspension in order to prevent their aggregation and to improve solubil...
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| Format: | Article |
| Language: | English |
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Taylor and Francis
2019
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| Online Access: | http://psasir.upm.edu.my/id/eprint/82588/ http://psasir.upm.edu.my/id/eprint/82588/1/The%20role%20of%20medium.pdf |
| _version_ | 1848859309873561600 |
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| author | Gumaan Abdulhameed, Abdullah Abdulhameed Abdul Halin, Izhal Mohtar, Mohd Nazim Hamidon, Mohd Nizar |
| author_facet | Gumaan Abdulhameed, Abdullah Abdulhameed Abdul Halin, Izhal Mohtar, Mohd Nazim Hamidon, Mohd Nizar |
| author_sort | Gumaan Abdulhameed, Abdullah Abdulhameed |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Dielectrophoresis (DEP) is an electrode-medium process used to control the movement of Carbon nanotubes (CNTs) within a solution under nonuniform electric fields. CNTs are typically dispersed into a solvent to form a homogeneous suspension in order to prevent their aggregation and to improve solubility. This paper starts with a short review of the techniques used to improve the compatibility of CNTs with a target medium. Then, direct and indirect variations in CNTs’ velocities as a function of DEP force were investigated, under different dispersion mediums, for a rectangular electrode pair with a 10 μm gap subjected to a 500 kHz AC signal with an amplitude of 10 V. The effects of changes in permittivity, conductivity, viscosity, and density of the medium were presented and discussed. Simulation results from this study were used to further clarify the role of the medium on the motion of CNTs during alignment using a DEP process prior to an actual alignment. |
| first_indexed | 2025-11-15T12:27:18Z |
| format | Article |
| id | upm-82588 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T12:27:18Z |
| publishDate | 2019 |
| publisher | Taylor and Francis |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-825882020-10-17T21:18:30Z http://psasir.upm.edu.my/id/eprint/82588/ The role of medium on the assembly of carbon nanotube by dielectrophoresis Gumaan Abdulhameed, Abdullah Abdulhameed Abdul Halin, Izhal Mohtar, Mohd Nazim Hamidon, Mohd Nizar Dielectrophoresis (DEP) is an electrode-medium process used to control the movement of Carbon nanotubes (CNTs) within a solution under nonuniform electric fields. CNTs are typically dispersed into a solvent to form a homogeneous suspension in order to prevent their aggregation and to improve solubility. This paper starts with a short review of the techniques used to improve the compatibility of CNTs with a target medium. Then, direct and indirect variations in CNTs’ velocities as a function of DEP force were investigated, under different dispersion mediums, for a rectangular electrode pair with a 10 μm gap subjected to a 500 kHz AC signal with an amplitude of 10 V. The effects of changes in permittivity, conductivity, viscosity, and density of the medium were presented and discussed. Simulation results from this study were used to further clarify the role of the medium on the motion of CNTs during alignment using a DEP process prior to an actual alignment. Taylor and Francis 2019 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/82588/1/The%20role%20of%20medium.pdf Gumaan Abdulhameed, Abdullah Abdulhameed and Abdul Halin, Izhal and Mohtar, Mohd Nazim and Hamidon, Mohd Nizar (2019) The role of medium on the assembly of carbon nanotube by dielectrophoresis. Journal of Dispersion Science and Technology, 41 (10). pp. 1576-1587. ISSN 0193-2691; ESSN: 1532-2351 10.1080/01932691.2019.1631841 |
| spellingShingle | Gumaan Abdulhameed, Abdullah Abdulhameed Abdul Halin, Izhal Mohtar, Mohd Nazim Hamidon, Mohd Nizar The role of medium on the assembly of carbon nanotube by dielectrophoresis |
| title | The role of medium on the assembly of carbon nanotube by dielectrophoresis |
| title_full | The role of medium on the assembly of carbon nanotube by dielectrophoresis |
| title_fullStr | The role of medium on the assembly of carbon nanotube by dielectrophoresis |
| title_full_unstemmed | The role of medium on the assembly of carbon nanotube by dielectrophoresis |
| title_short | The role of medium on the assembly of carbon nanotube by dielectrophoresis |
| title_sort | role of medium on the assembly of carbon nanotube by dielectrophoresis |
| url | http://psasir.upm.edu.my/id/eprint/82588/ http://psasir.upm.edu.my/id/eprint/82588/ http://psasir.upm.edu.my/id/eprint/82588/1/The%20role%20of%20medium.pdf |