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

Vivek Pachauri | Zendy; Klaus Kern | Zendy; Kannan Balasubramanian | Zendy

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

Author(s) -

Vivek Pachauri,

Klaus Kern,

Kannan Balasubramanian

Publication year - 2013

Publication title -

apl materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.571

H-Index - 60

ISSN - 2166-532X

DOI - 10.1063/1.4820423

Subject(s) - molybdenum disulfide , materials science , exfoliation joint , dielectrophoresis , fabrication , molybdenum , photodetector , electrode , acetonitrile , nanotechnology , optoelectronics , tungsten disulfide , sonication , solvent , chemical engineering , graphene , microfluidics , composite material , organic chemistry , metallurgy , chemistry , engineering , medicine , alternative medicine , pathology

A solution-based exfoliation method for obtaining large-area two-dimensional flakes of molybdenum disulfide, followed by the fabrication of electrical 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 chemical sensor in liquids while investigations under photo illumination indicate that such devices can also efficiently function as photodetectors

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