High-yield single-step catalytic growth of graphene nanostripes by plasma enhanced chemical vapor deposition

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dc.citation.firstpage527en_US
dc.citation.journalTitleCarbonen_US
dc.citation.lastpage536en_US
dc.citation.volumeNumber129en_US
dc.contributor.authorHsu, Chen-Chihen_US
dc.contributor.authorBagley, Jacob D.en_US
dc.contributor.authorTeague, Marcus L.en_US
dc.contributor.authorTseng, Wei-Shiuanen_US
dc.contributor.authorYang, Kathleen L.en_US
dc.contributor.authorZhang, Yiranen_US
dc.contributor.authorLi, Yiliangen_US
dc.contributor.authorLi, Yilunen_US
dc.contributor.authorTour, James M.en_US
dc.contributor.authorYeh, N.-C.en_US
dc.contributor.orgThe Smalley-Curl Instituteen_US
dc.contributor.orgNanoCarbon Centeren_US
dc.date.accessioned2018-01-23T18:10:48Zen_US
dc.date.available2018-01-23T18:10:48Zen_US
dc.date.issued2018en_US
dc.description.abstractWe report a single-step growth process of graphene nanostripes (GNSPs) by adding certain substituted aromatics (e.g., 1,2-dichlorobenzene) as precursors during the plasma enhanced chemical vapor deposition (PECVD). Without any active heating and by using low plasma power (≤60 W), we are able to grow GNSPs vertically with high yields up to (13 ± 4) g/m2 in 20 min. These GNSPs exhibit high aspect ratios (from 10:1 to >∼130:1) and typical widths from tens to hundreds of nanometers on various transition-metal substrates. The morphology, electronic properties and yields of the GNSPs can be controlled by the growth parameters (e.g., the species of seeding molecules, compositions and flow rates of the gases introduced into the plasma, plasma power, and the growth time). Studies of the Raman spectra, scanning electron microscopy images, ultraviolet photoelectron spectroscopy, transmission electron microscopy images, energy-dispersive x-ray spectroscopy and electrical conductivity of these GNSPs as functions of the growth parameters confirm high-quality GNSPs with electrical mobility ∼104 cm2/V-s. These results together with residual gas analyzer spectra and optical emission spectroscopy taken during PECVD growth suggest the important roles of both substituted aromatics and hydrogen plasma in the rapid vertical growth of GNSPs with large aspect ratios.en_US
dc.identifier.citationHsu, Chen-Chih, Bagley, Jacob D., Teague, Marcus L., et al.. "High-yield single-step catalytic growth of graphene nanostripes by plasma enhanced chemical vapor deposition." <i>Carbon,</i> 129, (2018) Elsevier: 527-536. https://doi.org/10.1016/j.carbon.2017.12.058.en_US
dc.identifier.digitalHigh-yield-single-step-catalytic-growthen_US
dc.identifier.doihttps://doi.org/10.1016/j.carbon.2017.12.058en_US
dc.identifier.urihttps://hdl.handle.net/1911/99241en_US
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.rightsThis is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).en_US
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/en_US
dc.titleHigh-yield single-step catalytic growth of graphene nanostripes by plasma enhanced chemical vapor depositionen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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