Jump to main content
Jump to site search

Issue 47, 2019
Previous Article Next Article

Polarized Raman spectroscopy to elucidate the texture of synthesized MoS2

Author affiliations

Abstract

Texture has a significant impact on several key properties of transition-metal dichalcogenides (TMDs) films. Films with in-plane oriented grains have been successfully implemented in nano- and opto-electronic devices, whereas, films with out-of-plane oriented material have shown excellent performance in catalytic applications. It will be demonstrated that the texture of nanocrystalline TMD films can be determined with polarized Raman spectroscopy. A model describing the impact of texture on the Raman response of 2D-TMDs will be presented. For the specific case of MoS2, the model was used to quantify the impact of texture on the relative strength of the A1g and E12g modes in both the unpolarized and polarized Raman configuration. Subsequently, the capability to characterize texture by polarized Raman was demonstrated on various MoS2 films grown by atomic-layer deposition (ALD) and validated by complementary transmission electron microscopy (TEM) and synchrotron based 2D grazing-incidence X-ray diffraction (GIXD) measurements. This also revealed how the texture evolved during ALD growth of MoS2 and subsequent annealing of the films. The insights presented in this work allow a deeper understanding of Raman spectra of nanocrystalline TMDs and enable a rapid and non-destructive method to probe texture.

Graphical abstract: Polarized Raman spectroscopy to elucidate the texture of synthesized MoS2

Back to tab navigation

Supplementary files

Publication details

The article was received on 11 Oct 2019, accepted on 14 Nov 2019 and first published on 15 Nov 2019


Article type: Paper
DOI: 10.1039/C9NR08750H
Nanoscale, 2019,11, 22860-22870
  • Open access: Creative Commons BY-NC license
  •   Request permissions

    Polarized Raman spectroscopy to elucidate the texture of synthesized MoS2

    V. Vandalon, A. Sharma, A. Perrotta, B. Schrode, M. A. Verheijen and A. A. Bol, Nanoscale, 2019, 11, 22860
    DOI: 10.1039/C9NR08750H

    This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. Material from this article can be used in other publications provided that the correct acknowledgement is given with the reproduced material and it is not used for commercial purposes.

    Reproduced material should be attributed as follows:

    • For reproduction of material from NJC:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the Centre National de la Recherche Scientifique (CNRS) and the RSC.
    • For reproduction of material from PCCP:
      [Original citation] - Published by the PCCP Owner Societies.
    • For reproduction of material from PPS:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the European Society for Photobiology, the European Photochemistry Association, and RSC.
    • For reproduction of material from all other RSC journals:
      [Original citation] - Published by The Royal Society of Chemistry.

    Information about reproducing material from RSC articles with different licences is available on our Permission Requests page.

Search articles by author

Spotlight

Advertisements