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Graphene is ideally suited for optoelectronic applications. It offers absorption at telecom wavelengths, high-frequency operation and CMOS-compatibility. We report optoelectronic mixing up to to 67GHz using a back-gated graphene field…

Graphene has emerged as a novel platform for opto-electronic applications and photodetector, but the inefficient conversion from light to current has so far been an important roadblock. The main challenge has been to increase the light…

This work evaluates the performance of carbon nanotube field effect transistors (CNTFET) using few layer graphene as the contact electrode material. We present the experimental results obtained on the barrier height at CNT graphene junction…

Mesoscale and Nanoscale Physics · Physics 2016-11-17 P R Yasasvi Gangavarapu , Punith Chikkahalli Lokesh , K N Bhat , A K Naik

The terahertz detection performance and operating regimes of graphene plasmonic field-effect transistors (FETs) were investigated by a hydrodynamic model. Continuous wave detection simulations showed that the graphene response sensitivity…

Applied Physics · Physics 2021-02-16 Yuhui Zhang , Michael S. Shur

Graphene nanoribbon (GNR) field-effect transistors (FETs) with widths down to 12 nm have been fabricated by electron beam lithography using a wafer-scale chemical vapor deposition (CVD) process to form the graphene. The GNR FETs show…

Mesoscale and Nanoscale Physics · Physics 2015-01-30 Wan Sik Hwang , Kristof Tahy , Xuesong Li , Huili , Xing , Alan C. Seabaugh , Chun-Yung Sung , Debdeep Jena

We report on fabrication of novel field-effect transistors (FETs) based on transition metal dichalcogenides. The unique structure of single crystals of these layered inorganic semiconductors enables fabrication of FETs with intrinsically…

Materials Science · Physics 2009-11-10 V. Podzorov , M. E. Gershenson , Ch. Kloc , R. Zeis , E. Bucher

This paper describes the behavior of top gated transistors fabricated using carbon, particularly epitaxial graphene on SiC, as the active material. In the past decade research has identified carbon-based electronics as a possible…

Graphene is an attractive material for microelectronics applications, given such favourable electrical characteristics as high mobility, high operating frequency, and good stability. If graphene is to be implemented in electronic devices on…

Materials Science · Physics 2019-06-14 B. C. Worley , S. Kim , T. J. Ha , S. Park , R. Haws , P. Rossky , D. Akinwande , A. Dodabalapur

We invented a method to fabricate graphene transistors on oxidized silicon wafers without the need to transfer graphene layers. To stimulate the growth of graphene layers on oxidized silicon a catalyst system of nanometer thin…

Mesoscale and Nanoscale Physics · Physics 2012-05-23 Pia Juliane Wessely , Frank Wessely , Emrah Birinci , Bernadette Riedinger , Udo Schwalke

A superconducting transmon qubit resilient to strong magnetic fields is an important component for proposed topological and hybrid quantum computing (QC) schemes. Transmon qubits consist of a Josephson junction (JJ) shunted by a large…

Mesoscale and Nanoscale Physics · Physics 2018-11-20 J. G. Kroll , W. Uilhoorn , K. L. van der Enden , D. de Jong , K. Watanabe , T. Taniguchi , S. Goswami , M. C. Cassidy , L. P. Kouwenhoven

Transition metal dichalcogenides (TMDCs), with their two-dimensional structures and sizable bandgaps, are good candidates for barrier materials in tunneling field-effect transistor (TFET) formed from atomic precision vertical stacks of…

Materials Science · Physics 2017-05-04 Xiang-Guo Li , Yun-Peng Wang , X. -G. Zhang , Hai-Ping Cheng

A 200 mm processing platform for the large-scale production of graphene field-effect transistor-quantum dot (GFET-QD) hybrid photodetectors is demonstrated. Comprehensive statistical analysis of electric data shows a high yield (96%) and…

Vertical tunneling field-effect-transistor (FET) based on graphene heterojunctions with layers of hBN is simulated by self-consistent quantum transport simulations. It is found that the asymmetric p-type and n-type conduction is due to work…

Mesoscale and Nanoscale Physics · Physics 2015-06-05 S. Bala Kumar , Gyungseon Seol , Jing Guo

Three types of first generation epitaxial graphene field effect transistors (FET) are presented and their relative merits are discussed. Graphene is epitaxially grown on both the carbon and silicon faces of hexagonal silicon carbide and…

Materials Science · Physics 2010-05-02 Xuebin Li , Xiaosong Wu , Mike Sprinkle , Fan Ming , Ming Ruan , Yike Hu , Claire Berger , Walt A. de Heer

The past decade has seen rapid growth in the research area of graphene and its application to novel electronics. With Moore's law beginning to plateau, the need for post-silicon technology in industry is becoming more apparent. Moreover,…

Mesoscale and Nanoscale Physics · Physics 2021-07-22 Mohamed Warda , Khodr Badih

The superior intrinsic properties of graphene have been a key research focus for the past few years. However, external components, such as metallic contacts, serve not only as essential probing elements, but also give rise to an effective…

Mesoscale and Nanoscale Physics · Physics 2012-05-14 Yanqing Wu , Vasili Perebeinos , Yu-ming Lin , Tony Low , Fengnian Xia , Phaedon Avouris

Bottom-up synthesized GNRs and GNR heterostructures have promising electronic properties for high performance field effect transistors (FETs) and ultra-low power devices such as tunnelling FETs. However, the short length and wide band gap…

Graphene, the atomically-thin honeycomb carbon lattice, is a highly conducting 2D material whose exposed electronic structure offers an ideal platform for sensing. Its biocompatible, flexible, and chemically inert nature associated to the…

Graphene is an ideal 2D material system bridging electronic and photonic devices. It also breaks the fundamental speed and size limits by electronics and photonics, respectively. Graphene offers multiple functions of signal transmission,…

Applied Physics · Physics 2018-10-19 Rong Wang , Xingang Ren , Ze Yan , Lijun Jiang , Wei E. I. Sha , Guangcun Shan

Metal contacts have been identified to be a key technological bottleneck for the realization of viable graphene electronics. Recently, it was observed that for structures that possess both a top and a bottom gate, the electron-hole…

Mesoscale and Nanoscale Physics · Physics 2015-05-27 Dionisis Berdebes , Tony Low , Yang Sui , Joerg Appenzeller , Mark Lundstrom
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