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We report the 1/f noise characteristics at low-frequency in graphene field-effect transistors that utilized a high-k dielectric tantalum oxide encapsulated layer (a few nanometers thick) placed by atomic layer deposition on Si3N4. A…

Materials Science · Physics 2021-03-30 Yifei Wang , Vinh X. Ho , Zachary. N. Henschel , Michael P. Cooney , Nguyen Q. Vinh

We report on the influence of low gamma irradiation (10^4 Gy) on the noise properties of individual carbon nanotube (CNT) field-effect transistors (FETs) with different gate configurations and two different dielectric layers, SiO2 and…

We report low frequency charge noise measurement on silicon substrates with different phosphorus doping densities. The measurements are performed with aluminum single electron transistors (SETs) at millikelvin temperatures where the…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 A. J. Ferguson , V. C. Chan , A. R. Hamilton , R. G. Clark

We report here the first realization of top-down silicon nanowires (SiNW) transduced by both junction-less field effect transistor (FET) and the piezoresistive (PZR) effect. The suspended SiNWs are among the smallest top-down SiNWs reported…

We have investigated shot noise in a 6-nm-diameter, semiconducting multiwalled carbon nanotube FET at 4.2 K over the frequency range 600 - 950 MHz. We find a transconductance of 3 - 3.5 $\mu$S for optimal positive and negative source-drain…

Mesoscale and Nanoscale Physics · Physics 2015-06-25 F. Wu , T. Tsuneta , R. Tarkiainen , D. Gunnarsson , T. H. Wang , P. J. Hakonen

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

Flicker or 1/f noise in metal-oxide-semiconductor field-effect transistors (MOSFETs) has been identified as the main source of noise at low frequency. It often originates from an ensemble of a huge number of charges trapping and detrapping.…

Mesoscale and Nanoscale Physics · Physics 2010-10-22 N. Clement , K. Nishiguchi , A. Fujiwara , D. Vuillaume

Solution processed field-effect transistors based on single crystalline silicon nanowires (Si NWs) with metal Schottky contacts are demonstrated. The semiconducting layer was deposited from a nanowire ink formulation at room temperature.…

Mesoscale and Nanoscale Physics · Physics 2017-01-11 Charles Opoku , Radu Sporea , Vlad Stolojan , Ravi Silva , Maxim Shkunov

Charge noise is one of the main sources of environmental decoherence for spin qubits in silicon, presenting a major obstacle in the path towards highly scalable and reproducible qubit fabrication. Here we demonstrate in-depth…

As the conventional silicon metal-oxide-semiconductor field-effect transistor (MOSFET) approaches its scaling limits; many novel device structures are being extensively explored. Among them, the silicon nanowire transistor (SNWT) has…

Emerging Technologies · Computer Science 2014-07-10 Mayank Chakraverty

Electronic flicker noise limits phase stability in communication systems, reduces the sensitivity and selectivity of sensors, and degrades coherence in quantum devices. There is a strong need for unconventional materials and strategies for…

Strongly Correlated Electrons · Physics 2026-01-21 Subhajit Ghosh , Nicholas Sesing , Tina Salguero , Sergey Rumyantsev , Roger K. Lake , Alexander A. Balandin

Recent studies on nanoscale field-effect sensors reveal the crucial importance of the low frequency noise for determining the ultimate detection limit. In this letter, the 1/f-type noise of Si nanoribbon field-effect sensors is…

Mesoscale and Nanoscale Physics · Physics 2015-03-17 A. Tarasov , W. Fu , O. Knopfmacher , J. Brunner , M. Calame , C. Schönenberger

We investigate the effects of electron and acoustic-phonon confinement on the low-field electron mobility of thin square silicon nanowires (SiNWs) that are surrounded by SiO$_2$ and gated. We employ a self-consistent…

Materials Science · Physics 2008-11-11 E. B. Ramayya , D. Vasileska , S. M. Goodnick , I. Knezevic

Ubiquitous low frequency 1/f noise can be a limiting factor in the performance and application of nanoscale devices. Here, we quantitatively investigate low frequency electronic noise in single-layer transition metal dichalcogenide MoS2…

Mesoscale and Nanoscale Physics · Physics 2013-08-16 Vinod K. Sangwan , Heather N. Arnold , Deep Jariwala , Tobin J. Marks , Lincoln J. Lauhon , Mark C. Hersam

We have investigated low-frequency 1/f noise in the boron nitride - grapheme - boron nitride heterostructure field - effect transistors on Si/SiO2 substrates (f is a frequency). The device channel was implemented with a single layer…

Mesoscale and Nanoscale Physics · Physics 2015-08-11 Maxim A. Stolyarov , Guanxiong Liu , Sergey L. Rumyantsev , Michael Shur , Alexander A. Balandin

Due to presence of magnetic field gradient needed for coherent spin control, dephasing of single-electron spin qubits in silicon quantum dots is often dominated by $1/f$ charge noise. We investigate theoretically fluctuations of ground…

Mesoscale and Nanoscale Physics · Physics 2024-08-09 Marcin Kępa , Niels Focke , Łukasz Cywiński , Jan. A. Krzywda

We present a systematic study on low-frequency current fluctuations of nano-devices consisting of one single semiconducting nanotube, which exhibit significant 1/f-type noise. By examining devices with different switching mechanisms,…

Materials Science · Physics 2007-12-18 Yu-Ming Lin , Joerg Appenzeller , Joachin Knoch , Zhihong Chen , Phaedon Avouris

Electron spins in silicon have long coherence times and are a promising qubit platform. However, electric field noise in semiconductors poses a challenge for most single- and multi-qubit operations in quantum-dot spin qubits. Here, we…

Mesoscale and Nanoscale Physics · Physics 2020-07-27 Elliot J. Connors , JJ Nelson , Haifeng Qiao , Lisa F. Edge , John M. Nichol

We report an experimental noise study of intermediate sized quasi ballistic semiconducting multiwalled carbon nanotube (IS-MWCNT) devices. The noise is two orders of magnitude lower than in singlewalled nanotubes (SWCNTs) and has no length…

Mesoscale and Nanoscale Physics · Physics 2014-05-06 Olli Herranen , Deep Talukdar , Markus Ahlskog

Silicon nanowires (Si NW) are ideal candidates for solution processable field effect transistors (FETs). The interface between the nanowire channel and the gate dielectric plays a crucial role in the FET performance, and it can be…

Mesoscale and Nanoscale Physics · Physics 2015-08-03 K. Prabha Rajeev , C. Opoku , V. Stolojan , M. Constantinou , M. Shkunov
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