Chemically exfoliated large-area two-dimensional flakes of molybdenum disulfide for device applications

  • Pachauri V
  • Kern K
  • Balasubramanian K
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A soln.-based exfoliation method for obtaining large-area two-dimensional flakes of molybdenum disulfide, followed by the fabrication of elec. devices is presented in this manuscript. The exfoliation method is based on the use of an aprotic solvent, namely, acetonitrile under mild sonication steps. In order to fabricate devices, a dielectrophoresis technique is used for transferring MoS2 flakes site-specifically on to the electrode pairs pre-written on the glass chips. The devices fabricated thus can be operated as chem. sensor in liqs. while investigations under photo illumination indicate that such devices can also efficiently function as photodetectors. (c) 2013 American Institute of Physics. [on SciFinder(R)]

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