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Schottky Barrier (SB)-MOSFET technology offers intriguing possibilities for cryogenic nano-scale devices, such as Si quantum devices and superconducting devices. We present experimental results on a novel device architecture where the gate…

GaAs was central to the development of quantum devices but is rarely used for nanowire-based quantum devices with InAs, InSb and SiGe instead taking the leading role. p-type GaAs nanowires offer a path to studying strongly-confined 0D and…

Mesoscale and Nanoscale Physics · Physics 2017-04-14 A. R. Ullah , J. G. Gluschke , P. Krogstrup , C. B. Sørensen , J. Nygård , A. P. Micolich

In this letter, we explore the bandstructure effects on the performance of ballistic silicon nanowire transistors (SNWTs). The energy dispersion relations for silicon nanowires are evaluated with an sp3d5s* tight binding model. Based on the…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 Jing Wang , Anisur Rahman , Avik Ghosh , Gerhard Klimeck , Mark Lundstrom

The recent development of the superlattice nanowire pattern transfer (SNAP) technique allows for the fabrication of arrays of nanowires at a diameter, pitch, aspect ratio, and regularity beyond competing approaches. Here, we report the…

Materials Science · Physics 2007-05-23 E. Johnston-Halperin , R. A. Beckman , N. A. Melosh , Y. Luo , J. E. Green , J. R. Heath

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

Carbon nanotube field-effect transistors (FETs) with passivated coaxial gate structures have been fabricated after growth of contacted suspended single wall nanotubes (SWNTs) and subsequent coating with gate dielectrics. Electron…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Haibing Peng , Jene A. Golovchenko

As a result of suppressed phonon conduction, large improvements of the thermoelectric figure of merit, ZT, have been recently reported for nanostructures compared to the raw materials' ZT values. It has also been suggested that low…

Mesoscale and Nanoscale Physics · Physics 2011-04-11 Neophytos Neophytou , Hans Kosina

Semiconducting diode with nonreciprocal transport effect underlies the cornerstone of contemporary integrated circuits (ICs) technology. Due to isotropic superconducting properties and the lack of breaking of inversion symmetry for…

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…

As CMOS structures are envisioned to host silicon spin qubits, and for co-integrating quantum systems with their classical control blocks, the cryogenic behaviour of such structures need to be investigated. In this paper we characterize the…

Mesoscale and Nanoscale Physics · Physics 2023-12-05 C. Rohrbacher , J. Rivard , R. Ritzenthaler , B. Bureau , C. Lupien , H. Mertens , N. Horiguchi , E. Dupont-Ferrier

Junctionless Nanowire Field-Effect Transistors (JNFETs), where the channel region is uniformly doped without the need for source-channel and drain-channel junctions or lateral doping abruptness, are considered an attractive alternative to…

Emerging Technologies · Computer Science 2014-04-02 Mostafizur Rahman , Pritish Narayanan , Csaba Andras Moritz

Photoconductors based on semiconducting thin films, nanowires and 2-dimensional atomic layers have been extensively investigated. But there is no explicit photogain equation that allows for fitting and designing photoresponses of these…

Mesoscale and Nanoscale Physics · Physics 2020-12-04 Jiajing He , Kaixiang Chen , Chulin Huang , Xiaoming Wang , Yongning He , Yaping Dan

For the first time, n-type few-layer MoS2 field-effect transistors with graphene/Ti as the hetero-contacts have been fabricated, showing more than 160 mA/mm drain current at 1 {\mu}m gate length with an on-off current ratio of 107. The…

Materials Science · Physics 2014-05-13 Yuchen Du , Lingming Yang , Jingyun Zhang , Han Liu , Kausik Majumdar , Paul D. Kirsch , Peide D. Ye

In this paper, a transient delayed rising and fall time of $\beta$-Ga$_2$O$_3$ NMs Schottky barrier diodes (SBDs) formed on four different substrates (diamond, Si, sapphire, and polyimide) were measured using a sub-micron second resolution…

Applied Physics · Physics 2022-07-27 Junyu Lai , Jung-Hun Seo

Since the 1960's when Gordon Moore proposed that the transistor density in our electronic devices should double every two years while the cost is halved, the semiconductor industry has taken this statement to heart. Over the last few…

Materials Science · Physics 2022-07-27 Aditya Muralidharan

In this work, we describe the charge transport in two-dimensional (2D) Schottky barrier field-effect transistors (SB-FETs) based on the carrier injection at the Schottky contacts. We first develop a numerical model for thermionic and…

Applied Physics · Physics 2023-07-12 Ashwin Tunga , Zijing Zhao , Ankit Shukla , Wenjuan Zhu , Shaloo Rakheja

The interface between polar LaAlO3 and non-polar SrTiO3 exhibits a remarkable variety of electronic behavior associated with the formation of an interfacial quasi-two-dimensional electron gas (q-2DEG). By "sketching" patterns of charge on…

Materials Science · Physics 2015-05-19 Cheng Cen , Daniela F. Bogorin , Jeremy Levy

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

To explore the potential of field-effect transistors (FETs) based on monolayers of the two-dimensional semiconducting channel(SC) for spintronics, the two most important issues are to ensure the formation of variable low resistive tunnel…

We have fabricated carbon nanotube (CN) field-effect transistors with multiple, individually addressable gate segments. The devices exhibit markedly different transistor characteristics when switched using gate segments controlling the…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 S. J. Wind , J. Appenzeller , Ph. Avouris
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