DataVXChemistry of MaterialsPaper
journal article·2016-06-14Open access

Centimeter-Scale Synthesis of Ultrathin Layered MoO3 by van der Waals Epitaxy

Aday J. Molina-Mendoza, José L. Lado, Joshua O. Island, Miguel Angel Niño, Lucía Aballe, Michael Foerster, Flavio Y. Bruno, Alejandro López-Moreno, Luis Vaquero-Garzon, Herre S. J. van der Zant, Gabino Rubio-Bollinger, Nicolás Agraït, Emilio M. Pérez, Joaquín Fernández-Rossier, Andres Castellanos-Gomez

Chemistry of Materials· Volume 28· Issue 11
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Source abstract

Abstract

We report on the large-scale synthesis of highly oriented ultrathin MoO 3 layers using a simple and low-cost atmospheric pressure, van der Waals epitaxy growth on muscovite mica substrates. By this method, we are able to synthesize high quality centimeter-scale MoO 3 crystals with thicknesses ranging from 1.4 nm (two layers) up to a few nanometers. The crystals can be easily transferred to an arbitrary substrate (such as SiO 2 ) by a deterministic transfer method and be extensively characterized to demonstrate the high quality of the resulting crystal. We also study the electronic band structure of the material by density functional calculations. Interestingly, the calculations demonstrate that bulk MoO 3 has a rather weak electronic interlayer interaction, and thus, it presents a monolayer-like band structure. Finally, we demonstrate the potential of this synthesis method for optoelectronic applications by fabricating large-area field-effect devices (10 μm × 110 μm in lateral dimensions) and find responsivities of 30 mA W –1 for a laser power density of 13 mW cm –2 in the UV region of the spectrum and also as an electron acceptor in a MoS 2 -based field-effect transistor.
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Research context

NanomaterialsElectronic materials

OpenAlex topics: 2D Materials and Applications · Gas Sensing Nanomaterials and Sensors · Transition Metal Oxide Nanomaterials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Departamento de Física de la Materia Condensada, Universidad Autónoma de Madrid, Campus de Cantoblanco, E-28049 Madrid, Spain

International Iberian Nanotechnology Laboratory (INL), Av. Mestre Jose Veiga, 4715-330 Braga, Portugal

Kavli Institute of Nanoscience, Delft University of Technology, Lorentzweg 1, 2628 CJ Delft, The Netherlands

Instituto Madrileño de Estudios Avanzados en Nanociencia (IMDEA-nanociencia), Campus de Cantoblanco, E-28049 Madrid, Spain

ALBA Synchrotron Light Facility, Carretera BP 1413, Km. 3.3, Cerdanyola del Vallés, Barcelona 08290, Spain

Deparment of Quantum Matter Physics, University of Geneva, 24 Quai Ernest-Ansermet, 1211 Genève 4, Switzerland

Condensed Matter Physics Center (IFIMAC), Universidad Autónoma de Madrid, E-28049 Madrid, Spain

Funding

European Commission · Stichting voor Fundamenteel Onderzoek der Materie · Ministerie van Onderwijs, Cultuur en Wetenschap · Ministerio de Economia y Competitividad · Fundacion BBVA · Ministerio de Ciencia e Innovacion

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