Abstract: High-performance graphene field-effect transistors have been fabricated on epitaxial graphene synthesized on a two-inch SiC wafer, achieving a cutoff. GHz Transistors from Wafer-Scale Epitaxial Graphene. Y.-M. Lin*,; C. Dimitrakopoulos,; K. A. Jenkins,; D. B. Farmer,; H.-Y. Chiu,; A. Grill. Including Carbon Nanotubes and Graphene Prasanna Chandrasekhar GHz transistors from wafer-scale epitaxial graphene” were reported, also from an of a SiC wafer, achieving a cutoff frequency of GHz for a gate length of nm.

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I hope the impact of this research could lead to graphene-based integrated circuits for analog and, perhaps, digital applications.

Quasicrystals Tessellating tiny tetrahedrons. Message Body Your Name thought you would like to see this page from the Science web site. Computer Science The sex robots are here. Thank you for your interest in spreading the word about Science.

100-GHz transistors from wafer-scale epitaxial graphene.

We only request your email address so that the person you are recommending the page to knows that you wanted them to see it, and that it is not junk mail. Graphene holds great potential for future electronics, and its destiny is largely linked to various materials issues that need to be resolved, including the synthesis of large-scale, high-quality graphene sheets and the improvement of the device fabrication process. Graphene is a material that has generated enormous research interest and activity in the past few years because of its unique electrical properties and its potential for use in future electronics.

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While I do not expect to see any immediate social or political impact from our research, I hope that this research may open up new directions for the electronics industry beyond the conventional semiconductor materials such as Si, and potentially generate niche applications based on high-performance graphene devices.

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GHz Transistors from Wafer-Scale Epitaxial Graphene | Science

I was already exploring electrical transport properties of trom and its nano-ribbons, and became involved with the fabrication and characterization of graphene transistors when the CERA program was launched in May, Log in through your institution Log in with your institution via Grapbene.

Science 21 December VolIssue We do not capture any email address. Working Life Forced to change—for good. Alberto Valdes-Garcia designed the transistor and performed the RF characterization. Graphene is a two-dimensional crystal consisting of a monolayer of carbon atoms arranged in a honeycomb lattice, and possessing unusual electronic properties that may eventually lead to vastly faster transistors than those achieved so far.

This paper is likely well-cited because it presents one of the first experimental demonstrations of gigahertz graphene transistors with the highest frequency reported thus far, and establishes the scaling behavior of device performance with respect to the device dimension.

Scanning electron microscope image of a graphene device. This work is therefore relevant and of interest to a wider audience within the graphene research community. Existing users log in. Message Subject Your Name has forwarded a page to you from Science. Does it describe a new frpm, methodology, or synthesis of knowledge?

Log in through your institution Log in via OpenAthens. The major challenges of this work included the design of the graphene transistor and the deposition of a high-quality oxide film as the gate insulator. Register for free to read this article.


Log in to view full text via AAAS login. Top-gated graphene field-effect transistor. By placing a metal gate electrode on the graphene channel, we demonstrated a graphene transistor that is capable of amplifying electrical signals at very high frequencies. More options Purchase digital access to this article Download and print this article for your personal scholarly, research, and educational use.

Save to my folders. Keith Jenkins and Dr.

This is an important milestone transisotrs utilizing graphene for technologically relevant applications. Please log in to add an alert for this article. Do you foresee any social or political implications for your research?

Where do you see your research leading in the future? The work benefited greatly from the insightful discussions and guidance of Dr. In this paper, we presented an approach to fabricate top-gated graphene transistors using exfoliated graphene extracted from a graphite crystal, and demonstrated the operation of the graphene transistors at a frequency as high wafet-scale 26 gigahertz, or 26 billion cycles per second.

Tansistors also investigated, for the first time, the scaling behavior of graphene devices as the device dimension shrinks, which exhibits a different trend from that of conventional semiconductors. Would you summarize the significance of your paper in layman’s terms? How did you become involved in this research, and were there any problems along the way?

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