Journal
SCIENCE
Volume 331, Issue 6017, Pages 568-571Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1194975
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Funding
- Irish Research Council for Science, Engineering & Technology (Embark Initiative)
- European Research Council
- Science Foundation Ireland [07/IN.7/I1772]
- Marie Curie grant [PIEF-GA-2008-220150]
- Royal Academy of Engineering/Engineering and Physical Sciences Research Council
- National Research Foundation of Korea [과C6A1602] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- Engineering and Physical Sciences Research Council [EP/H046550/1, EP/H045090/1, EP/F05677X/1] Funding Source: researchfish
- EPSRC [EP/F05677X/1, EP/H045090/1, EP/H046550/1] Funding Source: UKRI
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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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