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This work proposes an investigation on the scaling of the structural strength of polymer/graphene nanocomposites. To this end, fracture tests on geometrically scaled Single Edge Notch Bending (SENB) specimens with varying contents of…

Materials Science · Physics 2018-10-10 Cory Hage Mefford , Yao Qiao , Marco Salviato

Nanostructures defined in high-mobility two-dimensional electron systems offer a unique way of controlling the microscopic details of the investigated device. Quantum point contacts play a key role in these investigations, since they are…

Mesoscale and Nanoscale Physics · Physics 2014-03-19 Clemens Rössler , Tobias Krähenmann , Stephan Baer , Thomas Ihn , Klaus Ensslin , Christian Reichl , Werner Wegscheider

The achievement of all-fibre functional nano-modules for subcellular label-free measurement has long been pursued due to the limitations of manufacturing techniques. In this paper, a compact all-fibre label-free nano-sensor composed of a…

We show that carbon nanotube transistors exhibit scaling that is qualitatively different than conventional transistors. The performance depends in an unexpected way on both the thickness and the dielectric constant of the gate oxide.…

Materials Science · Physics 2009-11-10 S. Heinze , M. Radosavljevic , J. Tersoff , Ph. Avouris

The electrical and optical response of a field-effect device comprising a network of semiconductor-enriched single-wall carbon nanotubes, gated with sodium chloride solution is investigated. Field-effect is demonstrated in a device that…

Mesoscale and Nanoscale Physics · Physics 2010-09-24 Manu Jaiswal , C. S. Suchand Sangeeth , Wei Wang , Ya-Ping Sun , Reghu Menon

Molecular level components, like carbon multiwalled nanotubes (MWNT), show great potential for future nanoelectronics. At low frequencies, only the outermost carbon layer determines the transport properties of the MWNT. Due to the…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Markus Ahlskog , Pertti Hakonen , Mikko Paalanen , Leif Roschier , Reeta Tarkiainen

Single electron transistors (SETs) fabricated from single-walled carbon nanotubes (SWNTs) can be operated as highly sensitive charge detectors reaching sensitivity levels comparable to metallic radio frequency SETs (rf-SETs). Here we…

Mesoscale and Nanoscale Physics · Physics 2018-03-21 Pasi Häkkinen , Andreas Isacsson , Alexander Savin , Jaakko Sulkko , Pertti Hakonen

As the dimensions of electronic devices approach those of molecules, the size, geometry and chemical composition of the contact electrodes play increasingly dominant roles in device functions. It is shown here that single-walled carbon…

Materials Science · Physics 2007-05-23 Pengfei Qi , Ali Javey , Marco Rolandi , Qian Wang , Erhan Yenilmez , Hongjie Dai

High performance enhancement mode semiconducting carbon nanotube field-effect transistors (CNTFETs) are obtained by combining ohmic metal-tube contacts, high dielectric constant HfO2 films as gate insulators, and electrostatically doped…

Mesoscale and Nanoscale Physics · Physics 2015-06-24 Ali Javey , Jing Guo , Damon B. Farmer , Qian Wang , Dunwei Wang , Roy G. Gordon , Mark Lundstrom , Hongjie Dai

Bandstructure effects in PMOS transport of strongly quantized silicon nanowire field-effect-transistors (FET) in various transport orientations are examined. A 20-band sp3d5s* spin-orbit-coupled (SO) atomistic tight-binding model coupled to…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 Neophytos Neophytou , Abhijeet Paul , Gerhard Klimeck

Small solid state qubits, most prominently single spins in solids, can be remarkable sensors for various physical quantities ranging from magnetic fields to temperature. They package the performance of their bulk semiconductor counterparts…

Quantum Physics · Physics 2019-06-12 Friedemann Reinhard

Two-dimensional (2D) materials have great potential for use in future electronics due to their atomically thin nature which withstands short channel effects and thus enables better scalability. Device scaling is the process of reducing all…

As silicon transistors scale toward future technology nodes, three-dimensional architectures -- including gate-all-around (GAA) nanoribbon and complementary field-effect transistors (CFETs) -- require channel widths in the tens of…

Sensitive biomarker detection in physiological fluids is often limited by Debye screening, which suppresses electrostatic signals at sensor surfaces. Here we report a sensing approach based on flexoelectric resonance in silicon nanowire…

Materials Science · Physics 2026-05-01 Ang Liu , Jingsong Shang , Jiangang J. Du , Shyamsunder Erramilli , Pritiraj Mohanty

Nanoscale size-effects drastically alter the fundamental properties of semiconductors. Here, we investigate the dominant role of quantum confinement in the field-effect device properties of free-standing InAs nanomembranes with varied…

Miniaturized mechanical resonators have proven to be excellent force sensors. However, they usually rely on resonant sensing schemes, and their excellent performance cannot be utilized for the detection of static forces. Here, we report on…

Instrumentation and Detectors · Physics 2018-08-15 Erik Hebestreit , Martin Frimmer , René Reimann , Lukas Novotny

We employ noise spectroscopy and transconductance measurements to establish the optimal regimes of operation for our fabricated silicon nanowire field-effect transistors (Si NW FETs) sensors. A strong coupling between the liquid gate and…

Mesoscale and Nanoscale Physics · Physics 2015-06-18 Sergii Pud , Jing Li , Volodymyr Sibiliev , Mykhaylo Petrychuk , Valery Kovalenko , Andreas Offenhäusser , Svetlana Vitusevich

We investigate the effect of electrostatic screening on a nanoscale silicon MOSFET electrometer. We find that screening by the lightly doped p-type substrate, on which the MOSFET is fabricated, significantly affects the sensitivity of the…

Mesoscale and Nanoscale Physics · Physics 2015-05-19 Kenneth MacLean , Tamar S. Mentzel , Marc A. Kastner

The study of optical phenomena on the subwavelength scale is becoming increasingly important in photonics, particularly in the fields of nanoemitters, photonic crystals and plasmonics. Subwavelength field patterns are evanescent and must…

A 20-band sp3d5s* spin-orbit-coupled, semi-empirical, atomistic tight-binding model is used with a semi-classical, ballistic, field-effect-transistor (FET) model, to examine the ON-current variations to size variations of [110] oriented…

Mesoscale and Nanoscale Physics · Physics 2009-01-30 Neophytos Neophytou , Gerhard Klimeck