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Two-step fabrication of large-scale MoS2 hollow flakes

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Abstract

Recently, molybdenum disulfide (MoS2) has become a superstar material due to its outstanding optical and electronic performance, and its use as a promising candidate for optoelectronic devices. Here, we report the synthesis of large-scale two-dimensional (2D) MoS2 hollow flakes through a two-step method by utilizing thermal sulfurization–evaporation. Optical microscopy, scanning electron microscopy, AFM, Raman and PL spectroscopy analyses revealed that a solid MoS2 flake has a tapered multi-layered structure with an edge region of a single layer, and the hollow flake is a monolayer. The formation process of the 2D MoS2 hollow flakes is discussed on the basis of the experimental analyses. Such 2D MoS2 hollow flakes are envisaged to be novel templates for constructing 2D lateral p–n heterojunctions and 2D–1D heterostructures.

Graphical abstract: Two-step fabrication of large-scale MoS2 hollow flakes

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Publication details

The article was received on 12 Jun 2018, accepted on 31 Aug 2018 and first published on 01 Sep 2018


Article type: Paper
DOI: 10.1039/C8CE00963E
Citation: CrystEngComm, 2018, Advance Article
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    Two-step fabrication of large-scale MoS2 hollow flakes

    F. Chen, T. Wang, L. Wang and W. Su, CrystEngComm, 2018, Advance Article , DOI: 10.1039/C8CE00963E

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