| AVS 64th International Symposium & Exhibition | |
| Nanometer-scale Science and Technology Division | Thursday Sessions |
| Session NS-ThP |
| Session: | Nanometer-scale Science and Technology Poster Session |
| Presenter: | Dekel Nakar, Weizmann Institute of Science, Israel |
| Authors: | D. Nakar, Weizmann Institute of Science, Israel R. Popovitz-Biro, Weizmann Institute of Science, Israel K. Rechav, Weizmann Institute of Science, Israel E. Joselevich, Weizmann Institute of Science, Israel |
| Correspondent: | Click to Email |
Various electronic components based on carbon nanotubes (CNTs) have been produced, but an induction coil has not been demonstrated yet. Our group previously created defect-free single-wall CNT coils, but short-circuiting between turns prevents the coils from acting as inductors. To overcome this limitation, here we explore the use of few-wall CNTs, in which the outer walls may act as sheathing for the inner walls. We show the successful formation of the first few-wall CNT coils from individual CNTs and thin bundles.We characterized the structural properties of the coils using optical microscopy, SEM, AFM, top-view TEM and cross-sectional TEM. We also characterized their electrical properties. The coils comprised CNTs of two, three and four walls without observable defects. The coils had up to 163 turns and diameters between 1 and 5 µm. Based on the structural results, we suggest a mechanism for the formation of the coils. These ordered coils extend the known repertoire of self-organized structures of 1D nanomaterials. They are also promising candidates for inductive devices, and for manifesting other interesting properties, such as electromagnetism and superconductivity.
Nakar, D.; Popovitz-Biro, R.; Rechav, K.; Joselevich, E., “Few-Wall Carbon Nanotube Coils”, in preparation.