Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Direct Transformation of Crystalline MoO3 into Few-Layers MoS2

Version 1 : Received: 17 April 2020 / Approved: 17 April 2020 / Online: 17 April 2020 (13:07:28 CEST)

A peer-reviewed article of this Preprint also exists.

Carrascoso, F.; Sánchez-Santolino, G.; Hsu, C.-W.; Nemes, N.M.; Torres-Pardo, A.; Gant, P.; Mompeán, F.J.; Kalantar-zadeh, K.; Alonso, J.A.; García-Hernández, M.; Frisenda, R.; Castellanos-Gomez, A. Direct Transformation of Crystalline MoO3 into Few-Layers MoS2. Materials 2020, 13, 2293. Carrascoso, F.; Sánchez-Santolino, G.; Hsu, C.-W.; Nemes, N.M.; Torres-Pardo, A.; Gant, P.; Mompeán, F.J.; Kalantar-zadeh, K.; Alonso, J.A.; García-Hernández, M.; Frisenda, R.; Castellanos-Gomez, A. Direct Transformation of Crystalline MoO3 into Few-Layers MoS2. Materials 2020, 13, 2293.

Journal reference: Materials 2020, 13, 2293
DOI: 10.3390/ma13102293

Abstract

We fabricate large-area atomically thin MoS2 layers through the direct transformation of crystalline molybdenum trioxide (MoO3) by sulfurization at relatively low temperatures. The obtained MoS2 sheets are polycrystalline (~10-20 nm single-crystal domain size) with areas of up to 300×300 µm2 with 2-4 layers in thickness and show a marked p-type behaviour. The synthesized films are characterized by a combination of complementary techniques: Raman spectroscopy, X-ray diffraction, transmission electron microscopy and electronic transport measurements.

Subject Areas

2D materials; molybdenum trioxide (MoO3); molybdenum disulfide (MoS2); synthesis; sulfuration

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