10.1007/s40089-021-00337-x

Edge, confinement effects, and measurement of the number of layers of MoS2 nanosheets by liquid-exfoliated method assisted by different solvents

  • Nahid Chaudhary1,
  • Shikha Bansal1,
  • Manika Khanuja*1,
  1. Centre for Nanoscience and Nanotechnology, Jamia Millia Islamia, New Delhi, IN

Published in Issue 2021-04-20

How to Cite

Chaudhary, N., Bansal, S., & Khanuja, M. (2021). Edge, confinement effects, and measurement of the number of layers of MoS2 nanosheets by liquid-exfoliated method assisted by different solvents. International Nano Letters, 11(3 (September 2021). https://doi.org/10.1007/s40089-021-00337-x
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Abstract

Abstract A liquid exfoliation method is an indispensable productive approach, inhibited by our breakdown to measure nanosheet concentration, estimation, and thickness. The light scattered by MoS 2 nanosheets in liquid solvents, viz., dimethyl sulfoxide (DMSO), N -methyl-2-pyrrolidone, and ethanol results in optical extinction spectra which determines the optoelectronic properties. All samples were characterized by X-ray diffraction, scanning electron microscopy, and UV–Vis spectroscopy for determining their structure, morphology, and optical properties, respectively. The minimum estimated number of layers was found to be 15 in DMSO as solvent. The liquid-phase method can be employed to a wide range of 2D material including MoSe 2 , WS 2 , and WSe 2 .

Keywords

  • Liquid-phase exfoliation,
  • 2D material,
  • Optical properties

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