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dc.contributor.authorLi, Yimingen_US
dc.contributor.authorCheng, Hui-Wenen_US
dc.date.accessioned2014-12-08T15:43:15Z-
dc.date.available2014-12-08T15:43:15Z-
dc.date.issued2008-07-01en_US
dc.identifier.issn0010-4655en_US
dc.identifier.urihttp://dx.doi.org/10.1016/j.cpc.2008.01.026en_US
dc.identifier.urihttp://hdl.handle.net/11536/29275-
dc.description.abstractIn this work, we study the field emission (FE) properties of carbon nanotubes (CNTs) field emitter in the triode structure fabricated with anodic aluminum oxide (AAO) template. To obtain the self-consistent solution, a set of two-dimensional Maxwell's equations coupling with Lorentz equation are solved with a finite difference time domain (FDTD) particle-in-cell (PIC) method. The FE current is then computed with the Fowler-Nordheim equation. Calculated result of the collected current density shows good agreement with the measured data for the fabricated sample. Effect of the height and number of CNTs on the collected electron current density is thus investigated. We find that the explored structure with few number of CNTs exhibit high current density due to insignificant screening effect. The current density is low and approaches to stable current level when the number of CNTs increases. The simulation further predicts that the structure with the height of CNTs = 0.42 mu m has a maximum current density. The FE efficiency (i.e., the collected electron current density/the emission current density) versus the number of CNTs is estimated. The explored AAO-CNTs triode structure maintains high FE efficiency (similar to 95%) with a nonzero gate voltage. (C) 2008 Elsevier B.V. All rights reserved.en_US
dc.language.isoen_USen_US
dc.subjectcarbon nanotubesen_US
dc.subjecttriode structureen_US
dc.subjectanodic aluminum oxideen_US
dc.subjectfield emissionen_US
dc.subjectMaxwell's equationsen_US
dc.subjectFowler-Nordheim equationen_US
dc.subjectnumerical simulationen_US
dc.subjectFDTD-PICen_US
dc.titleNumerical simulation of field emission efficiency of anodic aluminum oxide carbon nanotube field emitter in the triode structureen_US
dc.typeArticle; Proceedings Paperen_US
dc.identifier.doi10.1016/j.cpc.2008.01.026en_US
dc.identifier.journalCOMPUTER PHYSICS COMMUNICATIONSen_US
dc.citation.volume179en_US
dc.citation.issue1-3en_US
dc.citation.spage107en_US
dc.citation.epage111en_US
dc.contributor.department電信工程研究所zh_TW
dc.contributor.departmentInstitute of Communications Engineeringen_US
dc.identifier.wosnumberWOS:000257539600021-
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