Optoelectronic crystal of artificial atoms in strain-textured molybdenum disulphide

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dc.citation.articleNumber7381
dc.citation.journalTitleNature Communications
dc.citation.volumeNumber6
dc.contributor.authorLi, Hong
dc.contributor.authorContryman, Alex W.
dc.contributor.authorQian, Xiaofeng
dc.contributor.authorArdakani, Sina Moeini
dc.contributor.authorGong, Yongji
dc.contributor.authorWang, Xingli
dc.contributor.authorWeisse, Jeffrey M.
dc.contributor.authorLee, Chi Hwan
dc.contributor.authorZhao, Jiheng
dc.contributor.authorAjayan, Pulickel M.
dc.contributor.authorLi, Ju
dc.contributor.authorManoharan, Hari C.
dc.contributor.authorZheng, Xiaolin
dc.date.accessioned2017-05-15T17:23:58Z
dc.date.available2017-05-15T17:23:58Z
dc.date.issued2015
dc.description.abstractThe isolation of the two-dimensional semiconductor molybdenum disulphide introduced a new optically active material possessing a band gap that can be facilely tuned via elastic strain. As an atomically thin membrane with exceptional strength, monolayer molybdenum disulphide subjected to biaxial strain can embed wide band gap variations overlapping the visible light spectrum, with calculations showing the modified electronic potential emanating from point-induced tensile strain perturbations mimics the Coulomb potential in a mesoscopic atom. Here we realize and confirm this ‘artificial atom’ concept via capillary-pressure-induced nanoindentation of monolayer molybdenum disulphide from a tailored nanopattern, and demonstrate that a synthetic superlattice of these building blocks forms an optoelectronic crystal capable of broadband light absorption and efficient funnelling of photogenerated excitons to points of maximum strain at the artificial-atom nuclei. Such two-dimensional semiconductors with spatially textured band gaps represent a new class of materials, which may find applications in next-generation optoelectronics or photovoltaics.
dc.identifier.citationLi, Hong, Contryman, Alex W., Qian, Xiaofeng, et al.. "Optoelectronic crystal of artificial atoms in strain-textured molybdenum disulphide." <i>Nature Communications,</i> 6, (2015) Springer Nature: https://doi.org/10.1038/ncomms8381.
dc.identifier.doihttps://doi.org/10.1038/ncomms8381
dc.identifier.urihttps://hdl.handle.net/1911/94265
dc.language.isoeng
dc.publisherSpringer Nature
dc.rightsThis work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the articleﾒs Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material.
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titleOptoelectronic crystal of artificial atoms in strain-textured molybdenum disulphide
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpublisher version
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