1.7k citations · 22.2k across the 133 of their papers we have counts for
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Gate-tunable diode and photovoltaic effect in an organic-2D layered material p-n junction
Saül Vélez, David Ciudad, Joshua Island +8
The semiconducting p-n junction is a simple device structure with great relevance for electronic and optoelectronic applications. The successful integration of low-dimensional mate…
Gate controlled photocurrent generation mechanisms in high-gain In2Se3 phototransistors
Joshua O. Island, Sofya I. Blanter, Michele Buscema +2
Photocurrent in photodetectors incorporating van der Waals materials is typically produced by a combination of photocurrent generation mechanisms that occur simultaneously during o…
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…
Precise and reversible band gap tuning in single-layer MoSe2 by uniaxial strain
Joshua O. Island, Agnieszka Kuc, Erik H. Diependaal +4
We present photoluminescence (PL) spectroscopy measurements of single-layer MoSe2 as a function of uniform uniaxial strain. A simple clamping and bending method is described that a…
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…
Temperature dependent Raman spectroscopy of titanium trisulfide (TiS3) nanoribbons and nanosheets
Amit S. Pawbake, Joshua O. Island, Eduardo Flores +7
Titanium trisulfide (TiS3) has recently attracted the interest of the 2D community as it presents a direct bandgap of ~1.0 eV, shows remarkable photoresponse, and has a predicted c…
Titanium trisulfide (TiS3): a 2D semiconductor with quasi-1D optical and electronic properties
Joshua O. Island, Robert Biele, Mariam Barawi +7
We present characterizations of few-layer titanium trisulfide (TiS3) flakes which, due to their reduced in-plane structural symmetry, display strong anisotropy in their electrical…
Control of biaxial strain in single-layer Molybdenite using local thermal expansion of the substrate
G. Plechinger, A. Castellanos-Gomez, M. Buscema +6
Single-layer MoS2 is a direct-gap semiconductor whose electronic band structure strongly depends on the strain applied to its crystal lattice. While uniaxial strain can be easily a…
Optical spectroscopy of interlayer coupling in artificially stacked MoS2 layers
G. Plechinger, F. Mooshammer, A. Castellanos-Gomez +3
We perform an optical spectroscopy study to investigate the properties of different artificial MoS bi- and trilayer stacks created from individual monolayers by a deterministic…
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…
Strain induced bang-gap engineering in layered
Robert Biele, Eduardo Flores, Jose Ramon Ares +5
By combining {\it ab initio} calculations and experiments we demonstrate how the band gap of the transition metal tri-chalcogenide TiS can be modified by inducing tensile or co…
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…
Black phosphorus: narrow gap, wide applications
Andres Castellanos-Gomez
The recent isolation of atomically thin black phosphorus by mechanical exfoliation of bulk layered crystals has triggered an unprecedented interest, even higher than that raised by…
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…
Multiwavelength excitation Raman Scattering Analysis of bulk and 2 dimensional MoS2: Vibrational properties of atomically thin MoS2 layers
Marcel Placidi, Mirjana Dimitrievska, Victor Izquierdo-Roca +10
In order to deepen in the knowledge of the vibrational properties of 2-dimensional MoS2 atomic layers, a complete and systematic Raman scattering analysis has been performed using…
Photocurrent generation with two-dimensional van der Waals semiconductors
Michele Buscema, Joshua O. Island, Dirk J. Groenendijk +4
Two-dimensional (2D) materials have attracted a great deal of interest in recent years. This family of materials allows for the realization of versatile electronic devices and hold…
High-Q Tantalum Oxide Nanomechanical Resonators by Laser-Oxidation of TaSe2
Santiago J. Cartamil-Bueno, Peter G. Steeneken, Frans D. Tichelaar +7
Controlling the strain in two-dimensional materials is an interesting avenue to tailor the mechanical properties of nanoelectromechanical systems. Here we demonstrate a technique t…
Strain engineering in semiconducting two-dimensional crystals
Rafael Roldán, Andres Castellanos-Gomez, Emmanuele Cappelluti +1
One of the fascinating properties of the new families of two-dimensional crystals is their high stretchability and the possibility to use external strain to manipulate, in a contro…
TiS3 transistors with tailored morphology and electrical properties
Joshua O. Island, Mariam Barawi, Robert Biele +9
Control over the morphology of TiS3 is demonstrated by synthesizing 1D nanoribbons and 2D nanosheets. The nanosheets can be exfoliated down to a single layer. Through extensive cha…
Pick-up and drop transfer of diamond nanosheets
V. Seshan, J. O. Island, R. van Leeuwen +9
Nanocrystalline diamond (NCD) is a promising material for electronic and mechanical micro- and nanodevices. Here we introduce a versatile pick-up and drop technique that makes it p…
Mechanical manipulation and exfoliation of boron nitride flakes by micro-plowing with an AFM tip
Joshua O. Island, Gary A. Steele, Herre S. J. can der Zant +1
We demonstrate a simple method to manipulate and exfoliate thick hexagonal boron nitride (h-BN) flakes using an atomic force microscope (AFM) cantilever and tip mounted to a microm…