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Excellent gate electrostatics in field effect transistors (FETs) based on two-dimensional transition metal dichalcogenide (2D TMD) channels can dramatically decrease static power dissipation. Energy efficient FETs operate in enhancement…

Platinum diselenide (PtSe_2) field-effect transistors with ultrathin channel regions exhibit p-type electrical conductivity that is sensitive to temperature and environmental pressure. Exposure to a supercontinuum white light source reveals…

Graphene field-effect transistors (GFETs) are among the most promising platforms for ultrasensitive chemical and biological sensing due to their high carrier mobility, large surface area, and low intrinsic noise. However, conventional…

Applied Physics · Physics 2025-09-05 Vinay Kammarchedu , Heshmat Asgharian , Hossein Chenani , Aida Ebrahimi

We report on organic field-effect transistors with unprecedented resistance against gate bias stress. The single crystal and thin-film transistors employ the organic gate dielectric Cytop(TM). This fluoropolymer is highly water repellent…

Materials Science · Physics 2009-12-21 Wolfgang L. Kalb , Thomas Mathis , Simon Haas , Arno F. Stassen , Bertram Batlogg

Carbon nanotube field-effect transistors (CNT FETs) have been proposed as possible building blocks for future nano-electronics. But a challenge with CNT FETs is that they appear to randomly display varying amounts of hysteresis in their…

Superconducting nanofilms are tunable systems that can host a 3D-2D dimensional crossover, leading to the Berezinskii-Kosterlitz-Thouless (BKT) superconducting transition approaching the 2D regime. Reducing further the dimensionality, from…

A vertical partial gate carbon nanotube (CNT) field-effect transistor (FET), which is amenable to the vertical CNT growth process and offers the potential for a parallel CNT array channel, is simulated using a self-consistent atomistic…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 Youngki Yoon , James Fodor , Jing Guo

Integrating ferroelectric negative capacitance (NC) into the field-effect transistor (FET) promises to break fundamental limits of power dissipation known as Boltzmann tyranny. However, realizing the stable static negative capacitance in…

Mesoscale and Nanoscale Physics · Physics 2022-03-01 I. Luk'yanchuk , A. Razumnaya , A. Sené , Y. Tikhonov , V. M. Vinokur

Spatially resolved photocurrent measurements on carbon nanotube field-effect transistors (CNFETs) operated in various transport regimes are reported. It is demonstrated that the photocurrents measured at different biasing conditions provide…

Materials Science · Physics 2007-05-24 E. J. H. Lee , K. Balasubramanian , J. Dorfmueller , R. Vogelgesang , N. Fu , A. Mews , M. Burghard , K. Kern

Photodetectors based on two dimensional materials have attracted growing interest. However, the sensitivity is still unsatisfactory even under high gate voltage. Here we demonstrate a MoS2 photodetector with a poly(vinylidene…

Nanoelectronic devices emulating neuro-synaptic functionalities through their intrinsic physics at low operating energies is imperative toward the realization of brain-like neuromorphic computers. In this work, we leverage the non-linear…

Emerging Technologies · Computer Science 2021-10-13 Arnob Saha , A N M Nafiul Islam , Zijian Zhao , Shan Deng , Kai Ni , Abhronil Sengupta

Due to its high charge carrier mobility, broadband light absorption, and ultrafast carrier dynamics, graphene is a promising material for the development of high-performance photodetectors. Graphene-based photodetectors have been…

Mesoscale and Nanoscale Physics · Physics 2015-02-25 Biddut K. Sarker , Isaac Childres , Edward Cazalas , Igor Jovanovic , Yong P. Chen

The primary mechanism of operation of almost all transistors today relies on electric-field effect in a semiconducting channel to tune its conductivity from the conducting 'on'-state to a non-conducting 'off'-state. As transistors continue…

Gate capacitances of back-gated nanowire field-effect transistors (NW-FETs) are calculated by means of finite element methods and the results are compared with analytical results of the ``metallic cylinder on an infinite metal plate…

Other Condensed Matter · Physics 2009-11-11 Olaf Wunnicke

PtSe$_2$ ultrathin films are used as the channel of back-gated field-effect transistors (FETs) that are investigated at different temperatures and under super-continuous white laser irradiation. The temperature-dependent behavior confirms…

Applied Physics · Physics 2020-12-02 Francesca Urban , Farzan Gity , Paul K. Hurley , Niall McEvoy , Antonio Di Bartolomeo

Graphene field effect transistors (G-FETs) have appeared as suitable candidates for sensing charges and have thus attracted large interest for ion and chemical detections. In particular, their high sensitivity, chemical robustness,…

Mesoscale and Nanoscale Physics · Physics 2024-02-08 Océane Terral , Guillaume Audic , Arnaud Claudel , Justine Magnat , Aurélie Dupont , Christophe J. Moreau , Cécile Delacour

We investigate near-field energy transfer between chemically synthesized quantum dots (QDs) and two-dimensional semiconductors. We fabricate devices in which electrostatically gated semiconducting monolayer molybdenum disulfide (MoS2) is…

A dielectric-modulated double gate bilayer electrodes organic thin-film transistor (DMDGBE-OTFT) based sensor is proposed for label-free biomolecule detection. The double gate of DMDGBE-OTFT is used for creating two symmetrical gates…

Instrumentation and Detectors · Physics 2022-05-31 Sushil Kumar Jain , Amit M. Joshi

Fabrication techniques such as laser patterning offer excellent potential for low cost and large area device fabrication. Conductive polymers can be used to replace expensive metallic inks such as silver and gold nanoparticles for printing…

Junctionless transistors made of silicon have previously been demonstrated experimentally and by simulations. Junctionless devices do not require fabricating an abrupt source-drain junction and thus can be easier to implement in aggressive…