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Knies B, Hartenbach I. Oxygen out, sulfur in: The alkali metal sulfidotungstates K2[WS4] and novel Na2[WS4] · 4 H2O. Z Anorg Allg Chem 2022. [DOI: 10.1002/zaac.202200270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Ingo Hartenbach
- Universitat Stuttgart Institut fuer Anorganische Chemie Pfaffenwaldring 55 70569 Stuttgart GERMANY
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Srinivasan BR, Dhuri SN, Naik AR, Näther C, Bensch W. Synthesis, Spectral Characterization and Crystal Structures of Five Organic Ammonium Tetrasulfidomolybdates. ChemistrySelect 2021. [DOI: 10.1002/slct.202100930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - Sunder N. Dhuri
- School of Chemical Sciences Goa University Taleigao Plateau Goa 403 206 India
| | - Ashish R. Naik
- School of Chemical Sciences Goa University Taleigao Plateau Goa 403 206 India
| | - Christian Näther
- Institut für Anorganische Chemie Christian-Albrechts-Universität Kiel Max-Eyth Strasse 2 D-24118 Kiel Germany
| | - Wolfgang Bensch
- Institut für Anorganische Chemie Christian-Albrechts-Universität Kiel Max-Eyth Strasse 2 D-24118 Kiel Germany
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Nisar T, Balster T, Haider A, Kortz U, Wagner V. Growth of ultra-thin large sized 2D flakes at air–liquid interface to obtain 2D-WS 2 monolayers. JOURNAL OF PHYSICS D: APPLIED PHYSICS 2021; 54:065301. [DOI: 10.1088/1361-6463/abc198] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
Abstract
Atomically thin two-dimensional (2D) transition metal dichalcogenides (TMDs) are promising candidates for future electronics. Currently, the growth of TMD large area thin films/flakes is one of the biggest challenges. A novel method for the growth of ultra-thin and large area WS2 monolayer flakes has been developed by introducing a solution-based temperature-dependent process. This two-dimensional WS2 growth process is low cost and environmentally friendly. WO3 flakes are grown at the air–liquid interface using ammonium tetrathiotungstate ((NH4)2WS4, ATTW) as WS2 precursor. The process requires a moderate activation temperature as no flakes are formed at room temperature. Successful growth of flakes was observed in an aqueous solution of the precursor at a temperature between 70 °C and 90 °C. These flakes could be transferred to any substrate by a controlled dip-coating process. Large 2D WS2 flakes with a lateral size of up to 100 μm were obtained after sulfurization. The thickness ranged from a WS2 monolayer to five monolayers, as verified by atomic force microscope. The chemical reaction mechanism behind the formation of the flakes was investigated by FTIR, Raman, UV–Vis and x-ray photoelectron spectroscopy. The initial flakes were found to be made of WO3, which were successfully converted to WS2 by a post annealing step at 500 °C–900 °C. This simple and environmentally friendly growth technique can be used to produce large WS2 flakes for next generation electronics.
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Jyai RN, Srinivasan BR. Syntheses, structures, reactivity studies and properties of anionic water rich bivalent metal phthalates. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.10.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Mangelsen S, Srinivasan BR, Schürmann U, Kienle L, Näther C, Bensch W. Nanostructured tungsten sulfides: insights into precursor decomposition and the microstructure using X-ray scattering methods. Dalton Trans 2019; 48:1184-1201. [DOI: 10.1039/c8dt04205e] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The entire path from a thiotungstate precursor via its decomposition intermediate to nanosized WS2 with heavy stacking disorder is traced using various X-ray scattering methods.
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Affiliation(s)
| | | | | | - Lorenz Kienle
- Institute for Materials Science
- Kiel University
- 24143 Kiel
- Germany
| | - Christian Näther
- Institute of Inorganic Chemistry
- Kiel University
- D-24118 Kiel
- Germany
| | - Wolfgang Bensch
- Institute of Inorganic Chemistry
- Kiel University
- D-24118 Kiel
- Germany
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Srinivasan BR, Dhuri SN, Naik AR, Näther C, Bensch W. Synthesis and Structural Characterization of Two New Non-Centrosymmetric Tetrasulfidometalates. Z Anorg Allg Chem 2013. [DOI: 10.1002/zaac.201200512] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Liu X, Hu F, Zhou J, An L, Liang D, Lin J. Solvothermal synthesis, crystal structures and properties of three new thiogermanates: the only example of the thiogermanate anion [Ge2S6]4− as a bridging ligand to a lanthanide complex ion. CrystEngComm 2012. [DOI: 10.1039/c2ce25082a] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Wutkowski A, Srinivasan BR, Naik AR, Schütt C, Näther C, Bensch W. Synthesis, Structure, and Photochemistry of an Organic Heptamolybdate-Monomolybdate. Eur J Inorg Chem 2011. [DOI: 10.1002/ejic.201001154] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Synthesis, properties and supramolecular structure of piperazinediium thiosulfate monohydrate+. J CHEM SCI 2011. [DOI: 10.1007/s12039-011-0064-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Srinivasan BR, Girkar SV, Näther C, Bensch W. Synthesis and characterization of bis(alkylammonium) tetrasulfidometalates. J COORD CHEM 2010. [DOI: 10.1080/00958971003674425] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
| | | | - Christian Näther
- b Institut für Anorganische Chemie, Christian-Albrechts-Universität Kiel Max-Eyth strasse 2 , D-24118 Kiel, Germany
| | - Wolfgang Bensch
- b Institut für Anorganische Chemie, Christian-Albrechts-Universität Kiel Max-Eyth strasse 2 , D-24118 Kiel, Germany
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Teske CL, Bensch W. On Crystal Structure Investigations of α- and β-Ammoniumdithiocarbamate NH4CS2NH2and the Role of Hydrogen Bonding. Z Anorg Allg Chem 2010. [DOI: 10.1002/zaac.200900378] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Srinivasan BR, Girkar SV, Näther C, Bensch W. Synthesis and structural characterization of bis(dimethylammonium) tetrasulfidometalates. J COORD CHEM 2009. [DOI: 10.1080/00958970903134282] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
| | - Siddhali V. Girkar
- a Department of Chemistry , Goa University , Panaji 403206 , Goa , India
| | - Christian Näther
- b Institut für Anorganische Chemie , Christian-Albrechts-Universität Kiel , Max-Eyth Straße 2 , D-24118, Kiel , Germany
| | - Wolfgang Bensch
- b Institut für Anorganische Chemie , Christian-Albrechts-Universität Kiel , Max-Eyth Straße 2 , D-24118, Kiel , Germany
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Synthesis, properties and structural characterization of 4-(2-ammonioethyl)piperazin-1-ium tetrasulfidotungstate hemihydrate and 1-ethylpiperazinediium tetrasulfidotungstate. Polyhedron 2009. [DOI: 10.1016/j.poly.2009.08.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Bis(piperazin-1-ium) tetrasulfidometalates: Solid state synthesis, thermal studies and structural characterization. Polyhedron 2009. [DOI: 10.1016/j.poly.2009.02.034] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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A spiral-like chain from a hydrogen-bonded cyclic dichloride containing a water dimer in a quaternary diammonium dichloride trihydrate. J CHEM SCI 2007. [DOI: 10.1007/s12039-007-0004-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Srinivasan BR, Naik AR, Näther C, Bensch W. Synthesis, Spectroscopy and Crystal Structures of Chiral Organic Ammonium Tetrathiometalates Showing N-H···S and C-H···S Interactions. Z Anorg Allg Chem 2007. [DOI: 10.1002/zaac.200600318] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Srinivasan BR, Näther C, Dhuri SN, Bensch W. Cation–anion interactions in bis(±)trans-2-aminocyclohexylammonium tetrathiotungstate, 1,7-diazonia-4-aza-heptane tetrathiotungstate and 1,5-diazonia-9-aza-nonane tetrathiotungstate. Polyhedron 2006. [DOI: 10.1016/j.poly.2006.05.039] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Siemeling U, Bretthauer F, Bruhn C. Hydrogen Bonds as Essential Elements in the Crystal Structures of Three Piperidinium Thiotungstates. Z Anorg Allg Chem 2006. [DOI: 10.1002/zaac.200500403] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Srinivasan BR, Näther C, Dhuri SN, Bensch W. On the Importance of H-Bonding Interactions in Organic Ammonium Tetrathiotungstates. MONATSHEFTE FUR CHEMIE 2006. [DOI: 10.1007/s00706-005-0456-y] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Madhu V, Das SK. N–H···S Hydrogen Bonds in a New Family of Ion-Pair Complexes Between Cationic Nickel Tetraazabicyclononane and Anionic Metal Dithiolates: Synthesis, Characterization and Properties of [Ni(C9H22N6)][M(mnt)2](MII = Cu, Ni, Pd). Eur J Inorg Chem 2006. [DOI: 10.1002/ejic.200500751] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Srinivasan BR, Dhuri SN, Sawant JV, Näther C, Bensch W. A novel hydrogen-bonded cyclic dibromide in an organic diammonium salt. J CHEM SCI 2006. [DOI: 10.1007/bf02708476] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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