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The industrial realization of graphene has so far been limited by challenges related to the quality, reproducibility, and high process temperatures required to manufacture graphene on suitable substrates. We demonstrate that epitaxial…

We report a bipolar field effect tunneling transistor that exploits to advantage the low density of states in graphene and its one atomic layer thickness. Our proof-of-concept devices are graphene heterostructures with atomically thin boron…

A novel nanoelectronic device is constructed by graphyne that is robustly connected between graphene electrodes, where graphyne is composed of hexagonal carbon rings and carbon chains. Owing to similarities between the bond lengths and unit…

Mesoscale and Nanoscale Physics · Physics 2013-07-17 Young I. Jhon , Myung S. Jhon

A chip to wafer scale, CMOS compatible method of graphene device fabrication has been established, which can be integrated into the back end of the line (BEOL) of conventional semiconductor process flows. In this paper, we present…

Applied Physics · Physics 2022-11-23 A. D. Smith , S. Vaziri , S. Rodriguez , M. Östling , M. C. Lemme

In this work, we demonstrate a silicon nanocrystal Field Effect Transistor (ncFET). Its operation is similar to that of a Tunnelling Field Effect Transistor (TFET) with two barriers in series. The tunnelling barriers are fabricated in very…

Mesoscale and Nanoscale Physics · Physics 2014-05-20 Patrick Harvey-Collard , Dominique Drouin , Michel Pioro-Ladrière

In a continuous search for the energy-efficient electronic switches, a great attention is focused on tunnel field-effect transistors (TFETs) demonstrating an abrupt dependence of the source-drain current on the gate voltage. Among all…

Mesoscale and Nanoscale Physics · Physics 2016-01-19 G. Alymov , V. Vyurkov , V. Ryzhii , D. Svintsov

The unique electronic properties of graphene offer the possibility that it could replace silicon when microelectronics evolves to nanoelectronics. Graphene grown epitaxially on silicon carbide is particularly attractive in this regard…

Materials Science · Physics 2015-05-13 Valery Borovikov , Andrew Zangwill

A bilayer graphene based electrostatically doped tunnel field-effect transistor (BED-TFET) is proposed in this work. Unlike graphene nanoribbon TFETs in which the edge states deteriorate the OFF-state performance, BED-TFETs operate based on…

Mesoscale and Nanoscale Physics · Physics 2016-05-06 Fan W. Chen , Hesameddin Ilatikhameneh , Gerhard Klimeck , Zhihong Chen , Rajib Rahman

Graphene, due to its unique electronic structure favoring high carrier mobility, is considered a promising material for use in high-speed electronic devices in the post-silicon electronic era. For this reason, experimental research on…

Mesoscale and Nanoscale Physics · Physics 2020-09-17 Giovanni Spinelli , Patrizia Lamberti , Vincenzo Tucci , Francisco Pasadas , David Jiménez

Graphene is a promising contender to succeed the throne of silicon in electronics. To this goal, large-scale epitaxial growth of graphene on substrates should be developed. Among various methods along this line, epitaxial growth of graphene…

All carbon electronics based on graphene has been an elusive goal. For more than a decade, the inability to produce significant band-gaps in this material has prevented the development of semiconducting graphene. While chemical…

Graphene on silicon carbide (SiC) bears great potential for future graphene electronic applications because it is available on the wafer-scale and its properties can be custom-tailored by inserting various atoms into the graphene/SiC…

Materials Science · Physics 2018-11-07 T. A. de Jong , E. E. Krasovskii , C. Ott , R. M. Tromp , S. J. van der Molen , J. Jobst

A graphene field effect transistor, where the active area is made of monolayer large-area graphene, is simulated including a full 2D Poisson equation and a drift-diffusion model with mobilities deduced by a direct numerical solution of the…

Applied Physics · Physics 2021-09-01 Giovanni Nastasi , Vittorio Romano

We report the first observation of the quantum Hall effect in epitaxial graphene. The result described in the submitted manuscript fills the yawning gap in the understanding of the electronic properties of this truly remarkable material and…

The dielectric engineered tunnel field-effect transistor (DE-TFET) as a high performance steep transistor is proposed. In this device, a combination of high-k and low-k dielectrics results in a high electric field at the tunnel junction. As…

Mesoscale and Nanoscale Physics · Physics 2015-10-23 Hesameddin Ilatikhameneh , Tarek A. Ameen , Gerhard Klimeck , Joerg Appenzeller , Rajib Rahman

Among the many anticipated applications of graphene, some - such as transistors for Si microelectronics - would greatly benefit from the possibility to deposit graphene directly on a semiconductor grown on a Si wafer. We report that Ge(001)…

The performance of field effect transistors based on an single graphene ribbon with a constriction and a single back gate are studied with the help of atomistic models. It is shown how this scheme, unlike that of traditional…

Mesoscale and Nanoscale Physics · Physics 2014-04-09 F. Munoz-Rojas , J. Fernandez-Rossier , L. Brey , J. J. Palacios

We report a method to pattern monolayer graphene nanoconstriction field effect transistors (NCFETs) with critical dimensions below 10 nm. NCFET fabrication is enabled by the use of feedback controlled electromigration (FCE) to form a…

The potential of graphene to impact the development of the next generation of electronics has renewed interest in its growth and structure. The graphitization of hexagonal SiC surfaces provides a viable alternative for the synthesis of…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 Y. Qi , S. H. Rhim , G. F. Sun , M. Weinert , L. Li

Power dissipation has become a major obstacle in performance scaling of modern integrated circuits, and has spurred the search for devices operating at lower voltage swing. In this letter, we study p-i-n band-to-band tunneling field effect…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 Siyuranga O. Koswatta , Mark S. Lundstrom , Dmitri E. Nikonov