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Centimeter-scale synthesis of ultrathin layered MoO3 by van der Waals epitaxy
Aday J. Molina-Mendoza, Jose Luis Lado, Joshua Island +12
We report on the large-scale synthesis of highly oriented ultrathin MoO3 layers using a simple and low-cost atmospheric pressure by van der Waals epitaxy growth on muscovite mica s…
Enhanced Visibility of MoS2, MoSe2, WSe2 and Black Phosphorus: Making Optical Identification of 2D Semiconductors Easier
Gabino Rubio-Bollinger, Ruben Guerrero, David Perez de Lara +5
We explore the use of Si3N4/Si substrates as a substitute of the standard SiO2/Si substrates employed nowadays to fabricate nanodevices based on 2D materials. We systematically stu…
Electronic bandgap and exciton binding energy of layered semiconductor TiS3
Aday J. Molina-Mendoza, Mariam Barawi, Robert Biele +8
We present a study of the electronic and optical bandgap in layered TiS3, an almost unexplored semiconductor that has attracted recent attention because of its large carrier mobili…
Strong modulation of optical properties in black phosphorus through strain-engineered rippling
Jorge Quereda, Pablo San-José, Vincenzo Parente +7
Controlling the bandgap through local-strain engineering is an exciting avenue for tailoring optoelectronic materials. Two-dimensional crystals are particularly suited for this pur…
Spatially resolved optical absorption spectroscopy of single- and few-layer MoS2 by hyperspectral imaging
Andres Castellanos-Gomez, Jorge Quereda, Herko P. van der Meulen +2
The possibility of spatially resolving the optical properties of atomically thin materials is especially appealing as they can be modulated at the micro- and nanoscale by reducing…
Current rectification in a single molecule diode: the role of electrode coupling
Siya Sherif, G Rubio-Bollinger, E. Pinilla-Cienfuegos +3
We demonstrate large rectification ratios (> 100) in single-molecule junctions based on a metal-oxide cluster (polyoxometalate), using a scanning tunneling microscope (STM) both at…