Cryo-mediated exfoliation and fracturing of layered materials into 2D quantum dots

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dc.citation.articleNumbere1701500en_US
dc.citation.issueNumber12en_US
dc.citation.journalTitleScience Advancesen_US
dc.citation.volumeNumber3en_US
dc.contributor.authorWang, Yanen_US
dc.contributor.authorLiu, Yangen_US
dc.contributor.authorZhang, Jianfangen_US
dc.contributor.authorWu, Jingjieen_US
dc.contributor.authorXu, Huien_US
dc.contributor.authorWen, Xiewenen_US
dc.contributor.authorZhang, Xiangen_US
dc.contributor.authorTiwary, Chandra Sekharen_US
dc.contributor.authorYang, Weien_US
dc.contributor.authorVajtai, Roberten_US
dc.contributor.authorZhang, Yongen_US
dc.contributor.authorChopra, Nitinen_US
dc.contributor.authorOdeh, Ihab Nizaren_US
dc.contributor.authorWu, Yuchengen_US
dc.contributor.authorAjayan, Pulickel M.en_US
dc.date.accessioned2018-06-27T12:34:33Zen_US
dc.date.available2018-06-27T12:34:33Zen_US
dc.date.issued2017en_US
dc.description.abstractAtomically thin quantum dots from layered materials promise new science and applications, but their scalable synthesis and separation have been challenging. We demonstrate a universal approach for the preparation of quantum dots from a series of materials, such as graphite, MoS2, WS2, h-BN, TiS2, NbS2, Bi2Se3, MoTe2, Sb2Te3, etc., using a cryo-mediated liquid-phase exfoliation and fracturing process. The method relies on liquid nitrogen pretreatment of bulk layered materials before exfoliation and breakdown into atomically thin two-dimensional quantum dots of few-nanometer lateral dimensions, exhibiting size-confined optical properties. This process is efficient for a variety of common solvents with a wide range of surface tension parameters and eliminates the use of surfactants, resulting in pristine quantum dots without surfactant covering or chemical modification.en_US
dc.identifier.citationWang, Yan, Liu, Yang, Zhang, Jianfang, et al.. "Cryo-mediated exfoliation and fracturing of layered materials into 2D quantum dots." <i>Science Advances,</i> 3, no. 12 (2017) AAAS: https://doi.org/10.1126/sciadv.1701500.en_US
dc.identifier.digitale1701500.fullen_US
dc.identifier.doihttps://doi.org/10.1126/sciadv.1701500en_US
dc.identifier.urihttps://hdl.handle.net/1911/102283en_US
dc.language.isoengen_US
dc.publisherAAASen_US
dc.rightsThis is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license, which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited.en_US
dc.rights.urihttps://creativecommons.org/licenses/by-nc/4.0/en_US
dc.titleCryo-mediated exfoliation and fracturing of layered materials into 2D quantum dotsen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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