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 grapheneā€¯ 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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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.

Please log in to add an alert for this article. Another great challenge involved the deposition epitwxial a high-quality insulator on graphene without deteriorating its transport properties, and this issue was successfully addressed by a process developed by Dr.

Top-gated graphene field-effect transistor. Where do you see your research leading in the future? This work is therefore relevant and of interest to a wider audience within the graphene research community.

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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. Alberto Valdes-Garcia designed the transistor and performed the RF characterization. The major challenges of this work gralhene the design of the graphene transistor and the deposition of a high-quality oxide film as the gate insulator. Log in through your institution Log in via OpenAthens.


Keith Jenkins and Dr. 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. Yu-Ming Lin talks with ScienceWatch.

100-GHz transistors from wafer-scale epitaxial graphene.

Support Contact Us Corporate website. Existing users log in. We do not capture any email address. This is epitaxiap important milestone in utilizing graphene for technologically relevant applications.

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Would you summarize the significance of your paper in layman’s terms? Message Subject Your Name has forwarded a page to you from Science. The maximum switching frequency of these devices exceeds that of silicon transistors with similar gate-electrode dimensions. Why do you think your paper is highly cited? Message Body Your Name thought you would like to see this page from the Science web site. Scanning electron microscope transistoors of a graphene device.

Thank you for your interest in spreading the word about Science. I was already exploring electrical transport properties of graphene and its nano-ribbons, and became involved with the fabrication and characterization of graphene transistors when the CERA program was launched in May, More options Purchase digital access to this article Download and print this article for your personal scholarly, research, and educational use.

Yu-Ming Lin on the Importance of Graphene in the Future –

This work also pointed out the issues to be addressed in order to fully utilize the potential of graphene in high-frequency electronics. 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.

Featured Analyses What’s Hot In Science 21 December VolIssue Register for free to read this article As a service to the community, this article wafer-sdale available for free. The work benefited greatly from the insightful discussions and guidance of Dr.


GHz Transistors from Wafer-Scale Epitaxial Graphene | Science

How did you become involved in this research, and were there ftom problems along the way? We also investigated, for the first time, the scaling behavior of graphene devices as the device dimension shrinks, which exhibits a different waafer-scale from that ttransistors conventional semiconductors.

Quasicrystals Tessellating tiny tetrahedrons. I hope the impact of this froom could lead to graphene-based integrated circuits for analog and, perhaps, digital applications. Do you foresee any social or political implications for your research? Computer Science The sex robots are here. 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.

Log in through your institution Log in with your institution via Shibboleth. 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 as 26 gigahertz, or 26 billion cycles per second.

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 graphdne electronics. Previous left arrow key Next right arrow key Close Move.