Microscopic ion fluxes in plasma-aided nanofabrication of ordered carbon nanotip structures
dc.contributor.author | Levchenko, Igor | en_US |
dc.contributor.author | Ostrikov, Kostya | en_US |
dc.contributor.author | Keidar, Michael | en_US |
dc.contributor.author | Xu, S. | en_US |
dc.date.accessioned | 2011-11-15T15:59:11Z | |
dc.date.available | 2011-11-15T15:59:11Z | |
dc.date.issued | 2005-09-15 | en_US |
dc.identifier.citation | Levchenko, I.; Ostrikov, K.; Keidar, M.; Xu, S. (2005). "Microscopic ion fluxes in plasma-aided nanofabrication of ordered carbon nanotip structures." Journal of Applied Physics 98(6): 064304-064304-10. <http://hdl.handle.net/2027.42/87355> | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/87355 | |
dc.description.abstract | Three-dimensional topography of microscopic ion fluxes in the reactive hydrocarbon-based plasma-aided nanofabrication of ordered arrays of vertically aligned single-crystalline carbon nanotip microemitter structures is simulated by using a Monte Carlo technique. The individual ion trajectories are computed by integrating the ion equations of motion in the electrostatic field created by a biased nanostructured substrate. It is shown that the ion flux focusing onto carbon nanotips is more efficient under the conditions of low potential drop UsUs across the near-substrate plasma sheath. Under low-UsUs conditions, the ion current density onto the surface of individual nanotips is higher for higher-aspect-ratio nanotips and can exceed the mean ion current density onto the entire nanopattern in up to approximately five times. This effect becomes less pronounced with increasing the substrate bias, with the mean relative enhancement of the ion current density ξiξi not exceeding ∼ 1.7∼1.7. The value of ξiξi is higher in denser plasmas and behaves differently with the electron temperature TeTe depending on the substrate bias. When the substrate bias is low, ξiξi decreases with TeTe, with the opposite tendency under higher-UsUs conditions. The results are relevant to the plasma-enhanced chemical-vapor deposition of ordered large-area nanopatterns of vertically aligned carbon nanotips, nanofibers, and nanopyramidal microemitter structures for flat-panel display applications. | en_US |
dc.publisher | The American Institute of Physics | en_US |
dc.rights | © The American Institute of Physics | en_US |
dc.title | Microscopic ion fluxes in plasma-aided nanofabrication of ordered carbon nanotip structures | en_US |
dc.type | Article | en_US |
dc.subject.hlbsecondlevel | Physics | en_US |
dc.subject.hlbtoplevel | Science | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | Department of Aerospace Engineering, University of Michigan, Ann Arbor, Michigan 48109-2140 | en_US |
dc.contributor.affiliationother | School of Physics, The University of Sydney, Sydney, New South Wales 2006, Australia | en_US |
dc.contributor.affiliationother | Plasma Sources and Applications Center, National Institute of Education (NIE), Nanyang Technological University, 637616 Singapore | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/87355/2/064304_1.pdf | |
dc.identifier.doi | 10.1063/1.2040000 | en_US |
dc.identifier.source | Journal of Applied Physics | en_US |
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