Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/139752
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dc.contributor.authorLim, Yu Dianen_US
dc.contributor.authorGrapov, Dmitryen_US
dc.contributor.authorHu, Liangxingen_US
dc.contributor.authorKong, Qinyuen_US
dc.contributor.authorTay, Beng Kangen_US
dc.contributor.authorLabunov, Vladimiren_US
dc.contributor.authorMiao, Jianminen_US
dc.contributor.authorCoquet, Philippeen_US
dc.contributor.authorAditya, Sheelen_US
dc.date.accessioned2020-05-21T06:35:00Z-
dc.date.available2020-05-21T06:35:00Z-
dc.date.issued2018-
dc.identifier.citationLim, Y. D., Grapov, D., Hu, L., Kong, Q., Tay, B. K., Labunov, V., . . . Aditya, S. (2018). Enhanced field emission properties of carbon nanotube bundles confined in SiO2 pits. Nanotechnology, 29(7), 075205-. doi:10.1088/1361-6528/aaa1bben_US
dc.identifier.issn0957-4484en_US
dc.identifier.urihttps://hdl.handle.net/10356/139752-
dc.description.abstractIt has been widely reported that carbon nanotubes (CNTs) exhibit superior field emission (FE) properties due to their high aspect ratios and unique structural properties. Among the various types of CNTs, random growth CNTs exhibit promising FE properties due to their reduced inter-tube screening effect. However, growing random growth CNTs on individual catalyst islands often results in spread out CNT bundles, which reduces overall field enhancement. In this study, significant improvement in FE properties in CNT bundles is demonstrated by confining them in microfabricated SiO2 pits. Growing CNT bundles in narrow (0.5 μm diameter and 2 μm height) SiO2 pits achieves FE current density of 1-1.4 A cm-2, which is much higher than for freestanding CNT bundles (76.9 mA cm-2). From the Fowler Nordheim plots, confined CNT bundles show a higher field enhancement factor. This improvement can be attributed to the reduced bundle diameter by SiO2 pit confinement, which yields bundles with higher aspect ratios. Combining the obtained outcomes, it can be conclusively summarized that confining CNTs in SiO2 pits yields higher FE current density due to the higher field enhancement of confined CNTs.en_US
dc.language.isoenen_US
dc.relation.ispartofNanotechnologyen_US
dc.rights© 2018 IOP Publishing Ltd. All rights reserved. This is an author-created, un-copyedited version of an article accepted for publication in Nanotechnology. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The definitive publisher authenticated version is available online at https://doi.org/10.1088/1361-6528/aaa1bben_US
dc.subjectEngineering::Electrical and electronic engineeringen_US
dc.titleEnhanced field emission properties of carbon nanotube bundles confined in SiO2 pitsen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Electrical and Electronic Engineeringen_US
dc.contributor.schoolSchool of Mechanical and Aerospace Engineeringen_US
dc.contributor.organizationCentre for Micro-/Nano-electronics (NOVITAS)en_US
dc.contributor.organizationCNRS-International-NTU-Thales Research Allianceen_US
dc.identifier.doi10.1088/1361-6528/aaa1bb-
dc.identifier.pmid29239308-
dc.identifier.scopus2-s2.0-85040699840-
dc.identifier.issue7en_US
dc.identifier.volume29en_US
dc.subject.keywordsField Emissionen_US
dc.subject.keywordsCarbon Nanotubesen_US
item.fulltextNo Fulltext-
item.grantfulltextnone-
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