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We explore solid electrolytes for electrostatic gating using field-effect transistors (FETs) in which thin WSe$_2$ crystals are exfoliated and transferred onto a lithium-ion conducting glass ceramic substrate. For negative gate voltages…

Mesoscale and Nanoscale Physics · Physics 2018-07-25 Marc Philippi , Ignacio Gutiérrez-Lezama , Nicolas Ubrig , Alberto F. Morpurgo

We examined the potential of antibody-functionalized single-walled carbon nanotube (SWNT) field-effect transistors (FETs) for use as a fast and accurate sensor for a Lyme disease antigen. Biosensors were fabricated on oxidized silicon…

The conductance change of nanowire field-effect transistors is considered a highly sensitive probe for surface charge. However, Debye screening of relevant physiological liquid environments challenge device performance due to competing…

Soft Condensed Matter · Physics 2007-09-05 Martin H. Sorensen , Niels Asger Mortensen , Mads Brandbyge

Gate-all-around (GAA) nanowire (NW) field-effect transistor (FET) is a promising device architecture due to its superior gate controllability than that of the conventional FinFET architecture. The significantly higher electron mobility of…

Materials Science · Physics 2023-10-18 Linqiang Xu , Lianqiang Xu , Qiuhui Li , Shibo Fang , Ying Li , Ying Guo , Aili Wang , Ruge Quhe , Yee Sin Ang , Jing Lu

Substrate plays a crucial role in determining transport and low frequency noise behavior of graphene field effect devices. Typically, heavily dope Si/SiO$_2$ substrate is used to fabricate these devices for efficient gating.…

Mesoscale and Nanoscale Physics · Physics 2022-10-19 Shubhadip Moulick , Rafiqul Alam , Atindra Nath Pal

Gas sensors built using two-dimensional (2D) MoS2 have conventionally relied on a change in field-effect-transistor (FET) channel resistance or a change in Schottky contact/pn homojunction barrier. This report demonstrates, for the first…

Applied Physics · Physics 2020-09-25 Sushovan Dhara , Himani Jawa , Sayantan Ghosh , Abin Varghese , Saurabh Lodha

Weyl semimetals are characterized by their bulk Weyl points -- conical band touching points that carry a topological monopole charge -- and Fermi arc states that span between the Weyl points on the surface of the material. Recently,…

Mesoscale and Nanoscale Physics · Physics 2020-03-13 Guangze Chen , Wei Chen , Oded Zilberberg

Capacitance-voltage characteristics of individual germanium nanowire field effect transistors were directly measured and used to assess carrier mobility in nanowires for the first time; thereby removing uncertainties in calculated mobility…

Materials Science · Physics 2007-05-23 Ryan Tu , Li Zhang , Yoshio Nishi , Hongjie Dai

Seamless connection of molecular nanonetworks to macroscale cyber networks is envisioned to enable the Internet of Bio-NanoThings, which promises for cutting-edge applications, especially in the medical domain. The connection requires the…

Emerging Technologies · Computer Science 2016-03-29 Murat Kuscu , Ozgur B. Akan

We report results of experimental investigation of the low-frequency noise in the top-gate graphene transistors. The back-gate graphene devices were modified via addition of the top gate separated by 20 nm of HfO2 from the single-layer…

Materials Science · Physics 2015-05-14 G. Liu , W. Stillman , S. Rumyantsev , Q. Shao , M. Shur , A. A. Balandin

We investigate gate-defined quantum dots in silicon on insulator nanowire field-effect transistors fabricated using a foundry-compatible fully-depleted silicon-on-insulator (FD-SOI) process. A series of split gates wrapped over the silicon…

Mesoscale and Nanoscale Physics · Physics 2020-12-02 Jingyu Duan , Michael A. Fogarty , James Williams , Louis Hutin , Maud Vinet , John J. L. Morton

Field-Effect Transistors with graphene channels or GFETs are an interesting alternative for the detection of analytes in biological fluids since the electrical behavior of the channel changes when exposed to a sample (among other detection…

Medical Physics · Physics 2024-07-16 Ricardo Bravo , Ricardo Silva , Eric Barret , John Brunnings , Adianette Segarra

Two dimensional materials such as Transition Metal Dichalcogenides (TMDC) and their bi-layer/tri-layer heterostructures have become the focus of intense research and investigation in recent years due to their promising applications in…

Computational Physics · Physics 2018-02-27 Kanak Datta , Abir Shadman , Ehsanur Rahman , Quazi D. M. Khosru

Biosensing based on whispering-gallery mode (WGM) resonators has been continuously studied with great attention due to its excellent sensitivity guaranteeing the label-free detection. However, its practical impact is insignificant to date…

Applied Physics · Physics 2020-01-08 Yeseul Kim , Hansuek Lee

The implementation of a quantum computer requires a qubit-specific measurement capability to read-out the final state of a quantum system. The model of spin dependent tunneling followed by charge readout has been highly successful in…

Mesoscale and Nanoscale Physics · Physics 2015-04-07 M. F. Gonzalez-Zalba , A. J. Ferguson , S. Barraud , A. C. Betz

Molecular Communication (MC) is a bio-inspired communication method based on the exchange of molecules for information transfer among nanoscale devices. MC has been extensively studied from various aspects in the literature; however, the…

Emerging Technologies · Computer Science 2016-07-26 M. Kuscu , O. B. Akan

We investigate by low-temperature transport experiments the sub-threshold behavior of triple-gate silicon field-effect transistors. These three-dimensional nano-scale devices consist of a lithographically defined silicon nanowire surrounded…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 H. Sellier , G. P. Lansbergen , J. Caro , N. Collaert , I. Ferain , M. Jurczak , S. Biesemans , S. Rogge

A common issue in low temperature measurements of enhancement-mode metal-oxide-semiconductor (MOS) field-effect transistors (FETs) in the low electron density regime is the high contact resistance dominating the device impedance. In that…

Mesoscale and Nanoscale Physics · Physics 2011-10-10 Laurens H. Willems Van Beveren , Kuan Y. Tan , Nai-Shyan Lai , Oleh Klochan , Andrew S. Dzurak , Alex R. Hamilton

We propose and analyze a novel dual-gate Spin Field Effect Transistor (SpinFET) with half-metallic ferromagnetic source and drain contacts. The transistor has two gate pads that can be biased independently. It can be switched ON or OFF with…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 J. Wan , M. Cahay , S. Bandyopadhyay

We consider nanowires in the field effect transistor device configuration. Modeling each nanowire as a one dimensional lattice with random site potentials, we study the heat exchanges between the nanowire electrons and the substrate…

Mesoscale and Nanoscale Physics · Physics 2015-07-28 Riccardo Bosisio , Cosimo Gorini , Geneviève Fleury , Jean-Louis Pichard