Show simple item record

dc.contributor.authorSu, Cong
dc.contributor.authorYin, Zongyou
dc.contributor.authorYan, QingBo
dc.contributor.authorWang, Zegao
dc.contributor.authorLin, Hongtao
dc.contributor.authorSun, Lei
dc.contributor.authorXu, Wenshuo
dc.contributor.authorYamada, Tetsuya
dc.contributor.authorJi, Xiang
dc.contributor.authorZettsu, Nobuyuki
dc.contributor.authorTeshima, Katsuya
dc.contributor.authorWarner, Jamie H.
dc.contributor.authorDinca, Mircea
dc.contributor.authorHu, Juejun
dc.contributor.authorDong, Mingdong
dc.contributor.authorSu, Gang
dc.contributor.authorKong, Jing
dc.contributor.authorLi, Ju
dc.date.accessioned2020-07-02T14:24:11Z
dc.date.available2020-07-02T14:24:11Z
dc.date.issued2019-10
dc.date.submitted2019-06
dc.identifier.issn0027-8424
dc.identifier.issn1091-6490
dc.identifier.urihttps://hdl.handle.net/1721.1/126051
dc.description.abstractTwo-dimensional van der Waals materials have rich and unique functional properties, but many are susceptible to corrosion under ambient conditions. Here we show that linear alkylamines n-CmH2m+1NH2, with m = 4 through 11, are highly effective in protecting the optoelectronic properties of these materials, such as black phosphorus (BP) and transition-metal dichalcogenides (TMDs: WS2, 1T′-MoTe2, WTe2, WSe2, TaS2, and NbSe2). As a representative example, n-hexylamine (m = 6) can be applied in the form of thin molecular monolayers on BP flakes with less than 2-nm thickness and can prolong BP’s lifetime from a few hours to several weeks and even months in ambient environments. Characterizations combined with our theoretical analysis show that the thin monolayers selectively sift out water molecules, forming a drying layer to achieve the passivation of the protected 2D materials. The monolayer coating is also stable in air, H2 annealing, and organic solvents, but can be removed by certain organic acids.en_US
dc.description.sponsorshipNational Science Foundation (Grant ECCS-1610806)en_US
dc.language.isoen
dc.publisherProceedings of the National Academy of Sciencesen_US
dc.relation.isversionofhttp://dx.doi.org/10.1073/pnas.1909500116en_US
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en_US
dc.sourcePNASen_US
dc.titleWaterproof molecular monolayers stabilize 2D materialsen_US
dc.typeArticleen_US
dc.identifier.citationSu, Cong et al. "Waterproof molecular monolayers stabilize 2D materials." Proceedings of the National Academy of Sciences 116, 42 (October 2019): 20844-20849 © 2019 National Academy of Sciencesen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Nuclear Science and Engineeringen_US
dc.contributor.departmentMassachusetts Institute of Technology. Research Laboratory of Electronicsen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Materials Science and Engineeringen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Chemistryen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Electrical Engineering and Computer Scienceen_US
dc.relation.journalProceedings of the National Academy of Sciencesen_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dc.date.updated2019-12-17T15:56:26Z
dspace.date.submission2019-12-17T15:56:28Z
mit.journal.volume116en_US
mit.journal.issue42en_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record