Nano Research

, Volume 12, Issue 7, pp 1691–1695 | Cite as

Thickness determination of MoS2, MoSe2, WS2 and WSe2 on transparent stamps used for deterministic transfer of 2D materials

  • Najme S. Taghavi
  • Patricia GantEmail author
  • Peng Huang
  • Iris Niehues
  • Robert Schmidt
  • Steffen Michaelis de Vasconcellos
  • Rudolf Bratschitsch
  • Mar García-Hernández
  • Riccardo FrisendaEmail author
  • Andres Castellanos-GomezEmail author
Research Article


Here, we propose a method to determine the thickness of the most common transition metal dichalcogenides (TMDCs) placed on the surface of transparent stamps, used for the deterministic placement of two-dimensional materials, by analyzing the red, green and blue channels of transmission-mode optical microscopy images of the samples. In particular, the blue channel transmittance shows a large and monotonic thickness dependence, making it a very convenient probe of the flake thickness. The method proves to be robust given the small flake-to-flake variation and the insensitivity to doping changes of MoS2. We also tested the method for MoSe2, WS2 and WSe2. These results provide a reference guide to identify the number of layers of this family of materials on transparent substrates only using optical microscopy.


transition metal dichalcogenides optical identification transparent substrate trasmittance 


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We thank Prof. Der-Yuh Lin and Prof. Tsung-Shine Ko for providing the doped MoS2 samples. N. S. T. acknowledges to the Ministry of Science, Research and Technology of Iran. A. C. G. and P. G. acknowledge funding from the European Commission Graphene Flagship (Grant Graphene Core 2 785219). R. F. acknowledges support from the Netherlands Organization for Scientific Research (NWO) through the research program Rubicon with project number 680-50-1515. A. C. G. acknowledge funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (grant agreement no 755655, ERC-StG 2017 project 2D-TOPSENSE).

Supplementary material

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Thickness determination of MoS2, MoSe2, WS2 and WSe2 on transparent stamps used for deterministic transfer of 2D materials


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Copyright information

© Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Najme S. Taghavi
    • 1
    • 2
  • Patricia Gant
    • 1
    Email author
  • Peng Huang
    • 1
    • 3
  • Iris Niehues
    • 4
  • Robert Schmidt
    • 4
  • Steffen Michaelis de Vasconcellos
    • 4
  • Rudolf Bratschitsch
    • 4
  • Mar García-Hernández
    • 1
  • Riccardo Frisenda
    • 1
    Email author
  • Andres Castellanos-Gomez
    • 1
    Email author
  1. 1.Materials Science Factory, Instituto de Ciencia de Materiales de Madrid (ICMM)Consejo Superior de Investigaciones Científicas (CSIC)MadridSpain
  2. 2.Faculty of PhysicsKhaje Nasir Toosi University of Technology (KNTU)TehrānIran
  3. 3.State Key Laboratory of TribologyTsinghua UniversityBeijingChina
  4. 4.Institute of Physics and Center for NanotechnologyUniversity of MünsterMünsterGermany

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