A University of Central Florida professor is part of a research team that developed a graphene-based transistor that could someday lead to computers that are a thousand times faster and use a hundredth of the power.
Ryan M. Gelfand, an assistant professor in CREOL, The College of Optics & Photonics, was a graduate student at Northwestern University when he began researching the concept with fellow grad student Joseph Friedman, who is now an assistant professor at the University of Texas at Dallas.
Traditional silicon-based transistors revolutionized electronics with their ability to switch current on and off. By controlling the flow of current, transistors allowed the creation of smaller radios, televisions and computers.
As reported this month in the scholarly journal Nature Communications, Friedman, Gelfand and their fellow researchers have theorized a next-generation transistor that’s based not on silicon but on a ribbon of graphene, a two-dimensional carbon material with the thickness of a single atom.
Their findings have big implications for electronics, computing speeds and big data, said Gelfand, who came to UCF in 2015.
“If you want to continue to push technology forward, we need faster computers to be able to run bigger and better simulations for climate science, for space exploration, for Wall Street. To get there, we can’t rely on silicon transistors anymore,” said Gelfand, the director of the NanoBioPhotonics Laboratory at UCF.
Researchers found that by applying a magnetic field to a graphene ribbon, they could change the resistance of current flowing through it. For this device, the magnetic field is controlled by increasing or decreasing the current through adjacent carbon nanotubes.
Increasing or decreasing the strength of the magnetic field would also increase or decrease the flow of current through this new kind of transistor, much like a valve controlling the flow of water through a pipe.
Transistors act as on and off switches. A series of transistors in different arrangements act as logic gates, allowing microprocessors to solve complex arithmetic and logic problems. But the speed of computer microprocessors that rely on silicon transistors has been relatively stagnant for years, with clock speeds mostly in the 3 to 4 gigahertz range.
A cascading series of graphene transistor-based logic circuits could produce a massive jump, with clock speeds approaching the terahertz range – a thousand times faster.
They would also be smaller and substantially more efficient, allowing device-makers to shrink technology and squeeze in more functionality, Gelfand said.
The Latest on: Graphene-based transistor
[google_news title=”” keyword=”graphene-based transistor” num_posts=”10″ blurb_length=”0″ show_thumb=”left”]
- Making contact: Researchers wire up individual graphene nanoribbonson September 20, 2023 at 9:47 am
Researchers have developed a method of "wiring up" graphene nanoribbons (GNRs), a class of one-dimensional materials that are of interest in the scaling of microelectronic devices. Using a ...
- Rapid and Sensitive Point-of-Care Diagnostic Devices Enabled By General Grapheneon September 20, 2023 at 4:33 am
This article describes how general graphene develops highly sensitive and fast point-of-care diagnostic devices by using graphene.
- $1 Graphene Sensor Identifies Safe Wateron September 15, 2023 at 5:00 pm
The sensor uses a GFET — a graphene-based field effect transistor to detect lead, mercury, and E. coli bacteria. Interestingly, the FETs transfer characteristic changes based on what is is ...
- Graphene-Based Supercapacitors Market Future upcoming Analysis Report till 2031on September 14, 2023 at 1:31 pm
"Graphene-Based Supercapacitors Market" Size, Share, Growth Report 2023-2030 | | No. of pages: 118 Report which offers an in-depth analysis Grounded on Applications (Wind/Solar Power, Traffic ...
- Graphene-Based Materials for Water Purification Market Insights Report 2023-2030on September 8, 2023 at 9:24 pm
The Global Graphene-Based Materials for Water Purification market is anticipated to rise at a considerable rate during the forecast period, between 2023 and 2030. In 2022, the market is growing at ...
- Biocompatible Bilayer Graphene-Based Artificial Synaptic Transistors (BLAST) Capable of Mimicking Synaptic Behavioron August 9, 2023 at 5:00 pm
In this work, we report on biocompatible bilayer graphene-based artificial synaptic transistors (BLAST) capable of mimicking synaptic behavior. The BLAST devices leverage a dry ion-selective membrane, ...
- New graphene-based neural probes improve detection of epileptic brain signalson December 22, 2021 at 8:32 am
The graphene depth neural probe (gDNP) consists of a millimetre-long linear array of micro-transistors imbedded in a micrometre-thin polymeric flexible substrate. The transistors were developed by a ...
- First Graphene-Based Device Is A "Few Months” Away, Says Startupon March 13, 2019 at 1:49 pm
and Cambridge anticipates that if we replaced the silicon chips in today's transistors with graphene-based chips, we could increase the speed of electronic devices ten-fold. The university also ...
- Graphene Computers Work 1000 Times Faster, Use Far Less Poweron August 22, 2017 at 7:35 pm
In a study published in the journal Nature Communications, the team found that a graphene-based transistor could actually work better than silicon transistors used in today's computers.
- Graphene Circuits: Making electronic circuits using carbon material graphiteon April 10, 2012 at 11:38 pm
To Shrink electronics circuits further, in sizes of atomic thickness, opto lithography and the present semiconductor material such as silicon is not serving the purpose. The paradigm shift in this ...
via Google News and Bing News