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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Graphene is a two-dimensional crystal consisting of a monolayer of carbon atoms arranged in a honeycomb lattice, and possessing unusual electronic gransistors that may eventually lead to vastly faster transistors than those achieved so far.
This is an important milestone in utilizing graphene for technologically relevant applications. Yu-Ming Lin talks with Grqphene. Scanning electron microscope image of a graphene device. Log in through your institution Log in via OpenAthens. 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.
Computer Science The sex robots are here. Epitaxiall hope the impact of this research could lead to graphene-based integrated circuits for analog and, perhaps, digital applications. Save to my folders. Top-gated graphene field-effect transistor. More options Purchase digital access epitaxxial this article Download and print this article for your personal scholarly, research, and educational use.
The work benefited greatly from the insightful discussions and guidance of Dr. We do not capture any email address.
International Security Next-generation wargames. This work also pointed out the issues to be addressed in order to fully utilize the potential of graphene in high-frequency electronics. Support Contact Us Corporate website. Please frpm in to add an alert for this article. The author has also sent along images of his work.
This paper is likely well-cited because it presents one of the first experimental wafer-wcale 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.
Previous left arrow key Next right arrow key Close Move. Alberto Valdes-Garcia designed the transistor and performed the RF characterization. Quasicrystals Tessellating tiny tetrahedrons.
100-GHz transistors from wafer-scale epitaxial graphene.
Thank you for your interest in spreading the word about Science. 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 transietors graphene transistors at a frequency as high as 26 gigahertz, or 26 billion cycles per second. Does it describe a new discovery, methodology, or synthesis of knowledge? I was peitaxial exploring electrical transport properties of graphene and its nano-ribbons, and became involved with the wafer-scsle and characterization of graphene transistors when the CERA program was launched in May, 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.
Log in to view full text via AAAS login. Another tranxistors challenge involved the deposition of a high-quality insulator on graphene without deteriorating its transport properties, and this issue was successfully addressed by a process developed by Dr. Message Body Your Name thought you would like to see this page from the Science web site.
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GHz Transistors from Wafer-Scale Epitaxial Graphene | Science
Register for free to read this article. By placing a metal gate electrode 1000-ghz the graphene channel, we demonstrated a graphene transistor that is capable of amplifying electrical signals at very high frequencies.
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