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Thermoelectric power of bulk black-phosphorus
Eduardo Flores, Jose R. Ares, Andres Castellanos-Gomez +3
The potential of bulk black-phosphorus for thermoelectric applications has been experimentally studied. The Seebeck Coefficient (S) has been measured in the temperature range from…
Environmental instability of few-layer black phosphorus
Joshua O. Island, Gary A. Steele, Herre S. J. van der Zant +1
We study the environmental instability of mechanically exfoliated few-layer black phosphorus (BP). From continuous measurements of flake topography over several days, we observe an…
Photovoltaic and photothermoelectric effect in a double-gated WSe2 device
Dirk J. Groenendijk, Michele Buscema, Gary A. Steele +4
Tungsten diselenide (WSe2), a semiconducting transition metal dichalcogenide (TMDC), shows great potential as active material in optoelectronic devices due to its ambipolarity and…
Mechanics of freely-suspended ultrathin layered materials
Andres Castellanos-Gomez, Vibhor Singh, Herre S. J. van der Zant +1
The study of atomically thin two-dimensional materials is a young and rapidly growing field. In the past years, a great advance in the study of the remarkable electrical and optica…
Single-layer MoS2 roughness and sliding friction quenching by interaction with atomically flat substrates
Jorge Quereda, Andres Castellanos-Gomez, Nicolás Agraït +1
We experimentally study the surface roughness and the lateral friction force in single-layer MoS2 crystals deposited on different substrates: SiO2, mica and hexagonal boron nitride…
Photovoltaic effect in few-layer black phosphorus PN junctions defined by local electrostatic gating
Michele Buscema, Dirk J. Groenendijk, Gary A. Steele +2
The photovoltaic effect is one of the fundamental light-matter interactions in light energy harvesting. In conventional photovoltaic solar cells, the photogenerated charge carriers…
Ultrahigh photoresponse of few-layer TiS3 nanoribbon transistors
Joshua O. Island, Michele Buscema, Mariam Barawi +7
Here, we isolate thin TiS3 ribbons, a layered direct band gap semiconductor (1.1 eV, well suited for detection all across the visible spectrum), thus far almost unexplored. We fabr…
Time-domain response of atomically thin nanomechanical resonators
R. van Leeuwen, A. Castellanos-Gomez, G. A. Steele +2
We measure the energy relaxation rate of single- and few-layer molybdenum disulphide () nanomechanical resonators by detecting the resonator ring-down. Recent exper…
Fast and broadband photoresponse of few-layer black phosphorus field-effect transistors
Michele Buscema, Dirk J. Groenendijk, Sofya I. Blanter +3
Few-layer black phosphorus, a new elemental 2D material recently isolated by mechanical exfoliation, is a high-mobility layered semiconductor with a direct bandgap that is predicte…
Optomechanical coupling between a multilayer graphene mechanical resonator and a superconducting microwave cavity
V. Singh, S. J. Bosman, B. H. Schneider +3
The combination of low mass density, high frequency, and high quality-factor of mechanical resonators made of two-dimensional crystals such as graphene make them attractive for app…
Isolation and characterization of few-layer black phosphorus
Andres Castellanos-Gomez, Leonardo Vicarelli, Elsa Prada +10
Isolation and characterization of mechanically exfoliated black phosphorus flakes with a thickness down to two single-layers is presented. A modification of the mechanical exfoliat…