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Issue 41, 2018
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Atomic scale study for the structural transformation of single layered MoS2

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Abstract

The structural transformation of single and few layered molybdenum disulfide (MoS2) from 2H to 1T phase was studied at the atomic scale. Single layered MoS2 was prepared via ultrasonication of an ethanolic dispersion. Bulk MoS2 was in the 2H phase, which was confirmed via XRD. The reduction of the difference between the characteristic peaks of MoS2 was observed through Raman spectroscopy for the exfoliated MoS2. Without adding any other atoms, a phase transformation of MoS2 was observed. The transformation of the 2H phase MoS2 to the 1T phase was studied under a high resolution transmission electron microscope (HRTEM). The characteristic honeycomb structure together with the specific pattern of the back-folded edge of MoS2 confirm the structural transformation. Electron energy loss spectroscopy (EELS) was performed to ascertain the chemical composition of MoS2.

Graphical abstract: Atomic scale study for the structural transformation of single layered MoS2

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Publication details

The article was received on 11 Jul 2018, accepted on 14 Sep 2018 and first published on 17 Sep 2018


Article type: Paper
DOI: 10.1039/C8CE01136B
Citation: CrystEngComm, 2018,20, 6482-6489
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    Atomic scale study for the structural transformation of single layered MoS2

    D. Dahanayake, S. Gunasekara, V. Jayaweera, C. Sandaruwan, V. Karunarathne and G. A. J. Amaratunga, CrystEngComm, 2018, 20, 6482
    DOI: 10.1039/C8CE01136B

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