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    Direct and scalable deposition of atomically thin low-noise MoS2 membranes on apertures

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    Date Issued
    2015-07-28
    Publisher Version
    10.1021/acsnano.5b02369
    Author(s)
    Waduge, Pradeep
    Bilgin, Ismail
    Larkin, Joseph
    Henley, Robert Y.
    Goodfellow, Kenneth
    Graham, Adam C.
    Bell, David C.
    Vamivakas, Nick
    Kar, Swastik
    Wanunu, Meni
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    Permanent Link
    https://hdl.handle.net/2144/42774
    Version
    Published version
    Citation (published version)
    Pradeep Waduge, Ismail Bilgin, Joseph Larkin, Robert Y Henley, Kenneth Goodfellow, Adam C Graham, David C Bell, Nick Vamivakas, Swastik Kar, Meni Wanunu. 2015. "Direct and Scalable Deposition of Atomically Thin Low-Noise MoS2 Membranes on Apertures.." ACS Nano, Volume 9, Issue 7, pp. 7352 - 7359. https://doi.org/10.1021/acsnano.5b02369
    Abstract
    Molybdenum disulfide (MoS2) flakes can grow beyond the edge of an underlying substrate into a planar freestanding crystal. When the substrate edge is in the form of an aperture, reagent-limited nucleation followed by edge growth facilitate direct and selective growth of freestanding MoS2 membranes. We have found conditions under which MoS2 grows preferentially across micrometer-scale prefabricated solid-state apertures in silicon nitride membranes, resulting in sealed membranes that are one to a few atomic layers thick. We have investigated the structure and purity of our membranes by a combination of atomic-resolution transmission electron microscopy, elemental analysis, Raman spectroscopy, photoluminescence spectroscopy, and low-noise ion-current recordings through nanopores fabricated in such membranes. Finally, we demonstrate the utility of fabricated ultrathin nanopores in such membranes for single-stranded DNA translocation detection.
    Description
    Published in final edited form as: ACS Nano. 2015 July 28; 9(7): 7352–7359. doi:10.1021/acsnano.5b02369.
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    • CAS: Physics: Scholarly Papers [414]
    • BU Open Access Articles [4757]


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