Chromium is proposed as an ideal metal to form contacts with monolayer MoS2and WS2
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In this paper, fifteen kinds of metal contacts to monolayer MoS2 and WS2 are investigated by first principles calculations. In a variety of metal contacts, the sixth subgroup metals (including Cr, Mo, W) show collective advantages in forming contacts with MoS2 or WS2. They have more favorable interface bonding, higher densities of states at the Fermi level, and lower potential barriers. Molybdenum (Mo) is one of the elements that form molybdenum disulphide (MoS2), and has been proved to form high quality contacts with MoS2. Similarly, tungsten (W) is one of the elements that form tungsten tellurium (WTe2), and is suggested to form favorable contacts with WTe2. The third metal in the sixth subgroup, chromium (Cr), is found here to be a superior metal compared with molybdenum and tungsten to form favorable contacts with molybdenum disulphide and tungsten disulphide. In all sixth subgroup metal contacts, Cr/MoS2 and Cr/WS2 show the best electronic transport properties and chromium has a lower melting point than molybdenum and tungsten, which lead to easier to process devices with transition-metal dichalcogenides.Keywords:
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In this paper, fifteen kinds of metal contacts to monolayer MoS2 and WS2 are investigated by first principles calculations. In a variety of metal contacts, the sixth subgroup metals (including Cr, Mo, W) show collective advantages in forming contacts with MoS2 or WS2. They have more favorable interface bonding, higher densities of states at the Fermi level, and lower potential barriers. Molybdenum (Mo) is one of the elements that form molybdenum disulphide (MoS2), and has been proved to form high quality contacts with MoS2. Similarly, tungsten (W) is one of the elements that form tungsten tellurium (WTe2), and is suggested to form favorable contacts with WTe2. The third metal in the sixth subgroup, chromium (Cr), is found here to be a superior metal compared with molybdenum and tungsten to form favorable contacts with molybdenum disulphide and tungsten disulphide. In all sixth subgroup metal contacts, Cr/MoS2 and Cr/WS2 show the best electronic transport properties and chromium has a lower melting point than molybdenum and tungsten, which lead to easier to process devices with transition-metal dichalcogenides.
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ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTransition metal complexes with sulfur ligands. 97. Coordinatively and electronically unsaturated and saturated chromium, molybdenum, and tungsten dithiolate complexes of the type [M(CO)3('S2')]2- and [M2(CO)7('S2')]2- {'S2'2- = S2C6R42- (R = H, Cl, Me); S2C2H42-}Dieter Sellmann, Monika Wille, and Falk KnochCite this: Inorg. Chem. 1993, 32, 11, 2534–2543Publication Date (Print):May 1, 1993Publication History Published online1 May 2002Published inissue 1 May 1993https://pubs.acs.org/doi/10.1021/ic00063a054https://doi.org/10.1021/ic00063a054research-articleACS PublicationsRequest reuse permissionsArticle Views237Altmetric-Citations27LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-AlertscloseSupporting Info (1)»Supporting Information Supporting Information Get e-Alerts
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Vanadium (S. Gambarotta). Niobium and Tantalum (D.E. Wigley). Hexacarbonyls and Carbonyl Complexes of Carbon -bonded Ligands of Chromium, Molybdenum and Tungsten (M.J. Winter). Carbonyl Complexes of Noncarbon -bonded Ligands of Chronium, Molybdenum and Tungsten (S. Woodward). Organometallic Complexes of Chromium, Molybdenum and Tungsten without Carbonyl Ligands (S. Woodward, M.J. Winter). -complexes of Chromium, Molybdenum and Tungsten, Excluding those of Cyclopentadienyls and Arenes (M.T. Whiteley). Cyclopentadienyl Complexes of Chromium, Molybdenum and Tungsten (M.J. Morris). Arene and Heteroarene Complexes of Chromium Molybdenum, and Tungsten (M.J. Morris).
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Abstract Cycloalkeno‐1,2,3‐se1ena‐ und ‐thiadiazole (I) reagieren mit den Pentacarbonyl‐THF‐Übergangsmetall‐Komplexen (II) zu den stabilen Komplexen (III).
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U.v. irradiation of [M(CO)6](M = Cr, Mo, and W) with excess of MeN(PF2)2 in Et2O solution results in complete substitution of all six carbonyl groups to give colourless volatile compounds [M{(PF2)2NMe}3](M = Cr, Mo, and W) which exhibit high thermal and oxidative stabilities.
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The syntheses and chemical properties of several new trisdicyano-1,2-dithiolene complexes of transition metals are described. These complexes have anions of the type [MS6C6(CN)6]z where M = Mn, Fe, Mo, and W and z=–2 and M = Fe and Co where z=–3. An improved synthesis of the known [CrS6C6(CN)6]2– is reported. The behaviour of some of the dianions with reducing agents is reported and some evidence for an apparently bis-substituted manganese complex [MnS4C4(CN)4]2– is presented. Voltammetric, spectral, and magnetic results obtained from these complexes and from [VS6C6(CN)6]2–, [CrS6C6(CN6)]2–, and [CoS6C6(CN)6]3– are reported and discussed.
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Abstract Die Hexacarbonyle (I) reagieren bei UV‐Bestrahlung mit tert.‐Butyl‐trimethylsilyl‐, ‐germyl‐ und ‐stannylphosphinen in wasserfreiem THF unter Abspaltung eines CO‐Liganden und Bildung der Phosphinpentacarbonylmetall(0)‐Komplexe (II).
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ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTNegative ion photoelectron spectroscopy of coordinatively unsaturated Group VI metal carbonyls of chromium, molybdenum, and tungsten: Cr(CO)3, Mo(CO)3, and W(CO)3Ashfaq A. Bengali, Sean M. Casey, Chun Lin Cheng, Jonathan P. Dick, P. Thomas Fenn, Peter W. Villalta, and Doreen G. LeopoldCite this: J. Am. Chem. Soc. 1992, 114, 13, 5257–5268Publication Date (Print):June 1, 1992Publication History Published online1 May 2002Published inissue 1 June 1992https://pubs.acs.org/doi/10.1021/ja00039a043https://doi.org/10.1021/ja00039a043research-articleACS PublicationsRequest reuse permissionsArticle Views282Altmetric-Citations52LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
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