Two-Dimensional Nanosheets Produced by Liquid Exfoliation of Layered Materials
Jonathan N. ColemanSchool of Physics and Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, D2, IrelandMustafa LotyaSchool of Physics and Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, D2, IrelandArlene O’NeillSchool of Physics and Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, D2, IrelandShane D. BerginDepartment of Materials, Imperial College London, London SW7 2AZ, UKPaul J. KingSchool of Physics and Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, D2, IrelandUmar KhanSchool of Physics and Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, D2, IrelandKaren YoungSchool of Physics and Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, D2, IrelandAlexandre GaucherSchool of Physics and Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, D2, IrelandSukanta DeSchool of Physics and Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, D2, IrelandRonan J. SmithSchool of Physics and Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, D2, IrelandI. V. ShvetsSchool of Physics and Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, D2, IrelandS. K. AroraSchool of Physics and Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, D2, IrelandGeorge StantonSchool of Physics and Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, D2, IrelandHyeyoung KimSchool of Chemistry and CRANN, Trinity College Dublin, D2, IrelandKangho LeeSchool of Chemistry and CRANN, Trinity College Dublin, D2, IrelandGyu Tae KimSchool of Electrical Engineering, Korea University, Seoul, South KoreaGeorg S. DuesbergSchool of Chemistry and CRANN, Trinity College Dublin, D2, IrelandToby HallamSchool of Chemistry and CRANN, Trinity College Dublin, D2, IrelandJohn J. BolandSchool of Chemistry and CRANN, Trinity College Dublin, D2, IrelandJing Jing WangSchool of Physics and Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, D2, IrelandJohn F. DoneganSchool of Physics and Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, D2, IrelandJaime C. GrunlanDepartment of Mechanical Engineering, Texas A&M University, College Station, TX 77843, USAGregory P. MoriartyDepartment of Mechanical Engineering, Texas A&M University, College Station, TX 77843, USAAleksey ShmeliovDepartment of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, UKRebecca J. NichollsDepartment of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, UKJames M. PerkinsDepartment of Materials, Imperial College London, London SW7 2AZ, UKEleanor M. GrievesonDepartment of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, UKKoenraad TheuwissenDepartment of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, UKDavid W. McCombDepartment of Materials, Imperial College London, London SW7 2AZ, UKPeter D. NellistDepartment of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, UKValeria NicolosiDepartment of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, UK
2011en
ABI
Аннотация
If they could be easily exfoliated, layered materials would become a diverse source of two-dimensional crystals whose properties would be useful in applications ranging from electronics to energy storage. We show that layered compounds such as MoS(2), WS(2), MoSe(2), MoTe(2), TaSe(2), NbSe(2), NiTe(2), BN, and Bi(2)Te(3) can be efficiently dispersed in common solvents and can be deposited as individual flakes or formed into films. Electron microscopy strongly suggests that the material is exfoliated into individual layers. By blending this material with suspensions of other nanomaterials or polymer solutions, we can prepare hybrid dispersions or composites, which can be cast into films. We show that WS(2) and MoS(2) effectively reinforce polymers, whereas WS(2)/carbon nanotube hybrid films have high conductivity, leading to promising thermoelectric properties.
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