Synthesis of millimeter-sized Mo x W (1− x ) S 2 y Se 2(1− y ) monolayer alloys with adjustable optical and electrical properties and their magnetic doping

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dc.check.date2024-11-21
dc.check.infoAccess to this article is restricted until 12 months after publication by request of the publisher
dc.contributor.authorLi, You
dc.contributor.authorWang, Yiwen
dc.contributor.authorHussain, Sabir
dc.contributor.authorXie, Liming
dc.contributor.authorQi, Junjie
dc.contributor.funderNatural Science Foundation of Beijing Municipality
dc.contributor.funderBeijing Municipal Natural Science Foundation
dc.contributor.funderBeijing Municipal Science and Technology Commission, Adminitrative Commission of Zhongguancun Science Park
dc.contributor.funderFundamental Research Funds for the Central Universities
dc.date.accessioned2024-01-11T16:00:28Z
dc.date.available2024-01-03T14:49:12Zen
dc.date.available2024-01-11T16:00:28Z
dc.date.issued2023-11-21
dc.date.updated2024-01-03T14:49:14Zen
dc.description.abstractAlloying has emerged as an effective approach for elec/optoelectronics applications by modulating the bandgap engineering of two-dimensional (2D) transition metal dichalcogenides (TMDs). Based on our earlier liquid phase edge epitaxy (LPEE) method, we have grown millimeter-sized quaternary MoxW(1-x)S2ySe2(1-y) monolayer films and MoxW(1-x)S2ySe2(1-y) monolayers with different morphologies by controlling the growth temperature and time. The homogeneity and good crystallinity of as-grown alloys are demonstrated by energy-dispersive spectroscopy (EDS), elemental mapping, Raman mapping, and high-resolution transmission electron microscopy (HRTEM). Atomic-resolution scanning transmission electron microscopy (STEM) strongly demonstrates the uniform distribution of Mo, W, S, and Se. Furthermore, alloy-based field-effect transistors (FETs) displaying bipolar conduction behavior with a weak p-branch and conduction behavior show component-dependent properties. In addition, this strategy has been broadened to prepare M-doped MoxW(1-x)S2ySe2(1-y) monolayers (M: Fe, Co, and Ni) for the first time, where magnetic hysteresis (M-H) measurements indicated room temperature ferromagnetism of MoxW(1-x)S2ySe2(1-y). Therefore, the synthesized pristine and M-doped alloys have greatly enriched the family of 2D materials and are prospective candidates for applications in future industrial device applications.en
dc.description.sponsorshipBeijing Natural Science Foundation (2202030); Beijing Municipal Science & Technology Commission; Fundamental Research Funds for Central Universities (FRF-GF-19-001A, FRF-GF-19-002B).
dc.description.statusPeer revieweden
dc.description.versionAccepted Version
dc.format.mimetypeapplication/pdfen
dc.identifier.citationLi, Y., Wang, Y., Hussain, S., Xie, L. and Qi, J. (2023) ‘Synthesis of millimeter-sized Mo x W (1− x ) S 2 y Se 2(1− y ) monolayer alloys with adjustable optical and electrical properties and their magnetic doping’, Journal of Materials Chemistry C, 11(48), pp. 16912–16921. Available at: https://doi.org/10.1039/D3TC03332E.
dc.identifier.doihttps://doi.org/10.1039/D3TC03332E
dc.identifier.eissn2050-7534
dc.identifier.endpage16921
dc.identifier.issn2050-7526
dc.identifier.issued48
dc.identifier.journaltitleJournal of Materials Chemistry C
dc.identifier.startpage16912
dc.identifier.urihttps://hdl.handle.net/10468/15359
dc.identifier.volume11
dc.language.isoenen
dc.publisherRoyal Society of Chemistry
dc.rights© The Royal Society of Chemistry 2023
dc.subjectMonolayers
dc.subjectCrystallinity
dc.subjectEnergy dispersive spectroscopy
dc.subjectField effect transistors
dc.subjectHigh resolution transmission electron microscopy
dc.subjectMapping
dc.subjectScanning electron microscopy
dc.subjectSemiconductor doping
dc.subjectTransition metals
dc.titleSynthesis of millimeter-sized Mo x W (1− x ) S 2 y Se 2(1− y ) monolayer alloys with adjustable optical and electrical properties and their magnetic doping
dc.typeArticle (peer-reviewed)
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