Nanotechnology Now

Our NanoNews Digest Sponsors


Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > Scientists develop world’s smallest diamond transistor

Abstract:
Scientists at the University of Glasgow have developed the world's smallest diamond transistor.

At just 50 nanometres in length the ‘gate' of the diamond transistor developed by Dr David Moran, of the Department of Electronics & Electrical Engineering, is more than 1000 times smaller than the thickness of a human hair, and is half the size of the previous smallest diamond transistor developed by Japanese firm NTT.

Scientists develop world’s smallest diamond transistor

Glasgow, UK | Posted on April 17th, 2009

Diamond is heralded as being an ideal material for the next generation of nanoscale electronic devices due to its amazing and unique properties and could help scientists develop nascent technologies such as Terahertz Imaging and Automotive Collision Detection.

The ‘gate' of a transistor is used to control the flow of current between two electrical contact points, acting as a switch or an amplifier. The smaller the gate, the faster the transistor works.

Dr Moran said: "From its invention in 1947, the transistor has been the building block of many modern day technologies, from silicon based chips in your computer processor, to gallium arsenide based circuits in your mobile phone. The gate of the transistor (the section in the middle) developed by Dr Moran is just 50 nanometres in length.

"These types of materials - silicon and gallium arsenide - are chosen upon what their strengths and weaknesses are. Diamond on the other hand is very much an excellent all-round performer, and has been described by many as a perfect material.

"By developing a diamond transistor technology, we aim to tap into the truly amazing properties of this exciting material which could prove fundamental to the development of several next generation technologies."

Such technologies include Terahertz Imaging and Automotive Collision Detection.

Terahertz imaging uses terahertz radiation (T-rays) - electromagnetic waves of a frequency range between that of microwaves and infrared which can penetrate a range of materials, including clothes and flesh - to create a picture.

Because it is non-ionising, it does not damage cells and has potential applications in
security scanners to detect concealed weapons through clothes as well as safer medical imaging.

Automotive collision detection or automotive radar is an advanced safety feature currently being heavily researched by the car industry with which a car or other automotive vehicle will have an effective radar zone around it that will allow it to detect potential collisions from any side of the vehicle well in advance and take avoiding action.

Dr Moran added: "These applications require a very fast and ideally high-power transistor technology that needs to be able to operate in adverse weather/temperature conditions. This is where a diamond transistor technology would excel".

The diamond itself is artificially made by UK firm Element 6 through a process called chemical vapour deposition.

The creation of the tiny device is part of a five-year project funded by the Engineering & Physical Sciences Research Council (EPSRC) and is the result of a collaborative project between the University of Glasgow and Heriot Watt University. Its construction was only possible through the multi-million pound facilities within the James Watt Nanofabrication Centre at the University of Glasgow where electron beam lithography was employed to create patterns and structures on the miniscule sliver of diamond.

The University of Glasgow has one of the most advanced large area high-resolution electron beam lithography tools in the world.

####

For more information, please click here

Contacts:
Stuart Forsyth
University of Glasgow
Media Relations Office
44 0141 330 4831

Copyright © University of Glasgow

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Fast, stretchy circuits could yield new wave of wearable electronics May 30th, 2016

Automating DNA origami opens door to many new uses: Like 3-D printing did for larger objects, method makes it easy to build nanoparticles out of DNA May 30th, 2016

Simple attraction: Researchers control protein release from nanoparticles without encapsulation: U of T Engineering discovery stands to improve reliability and fabrication process for treatments to conditions such as spinal cord damage and stroke May 28th, 2016

Scientists illuminate a hidden regulator in gene transcription: New super-resolution technique visualizes important role of short-lived enzyme clusters May 27th, 2016

Doubling down on Schrödinger's cat May 27th, 2016

Imaging

Scientists illuminate a hidden regulator in gene transcription: New super-resolution technique visualizes important role of short-lived enzyme clusters May 27th, 2016

Light can 'heal' defects in new solar cell materials: Defects in some new electronic materials can be removed by making ions move under illumination May 24th, 2016

Chip Technology

Fast, stretchy circuits could yield new wave of wearable electronics May 30th, 2016

Gigantic ultrafast spin currents: Scientists from TU Wien (Vienna) are proposing a new method for creating extremely strong spin currents. They are essential for spintronics, a technology that could replace today's electronics May 25th, 2016

Diamonds closer to becoming ideal semiconductors: Researchers find new method for doping single crystals of diamond May 25th, 2016

Dartmouth team creates new method to control quantum systems May 24th, 2016

Nanoelectronics

Researchers demonstrate size quantization of Dirac fermions in graphene: Characterization of high-quality material reveals important details relevant to next generation nanoelectronic devices May 20th, 2016

Graphene: A quantum of current - When current comes in discrete packages: Viennese scientists unravel the quantum properties of the carbon material graphene May 20th, 2016

New type of graphene-based transistor will increase the clock speed of processors: Scientists have developed a new type of graphene-based transistor and using modeling they have demonstrated that it has ultralow power consumption compared with other similar transistor devices May 19th, 2016

Self-healing, flexible electronic material restores functions after many breaks May 17th, 2016

Discoveries

Fast, stretchy circuits could yield new wave of wearable electronics May 30th, 2016

Automating DNA origami opens door to many new uses: Like 3-D printing did for larger objects, method makes it easy to build nanoparticles out of DNA May 30th, 2016

Simple attraction: Researchers control protein release from nanoparticles without encapsulation: U of T Engineering discovery stands to improve reliability and fabrication process for treatments to conditions such as spinal cord damage and stroke May 28th, 2016

Scientists illuminate a hidden regulator in gene transcription: New super-resolution technique visualizes important role of short-lived enzyme clusters May 27th, 2016

Announcements

Fast, stretchy circuits could yield new wave of wearable electronics May 30th, 2016

Automating DNA origami opens door to many new uses: Like 3-D printing did for larger objects, method makes it easy to build nanoparticles out of DNA May 30th, 2016

Simple attraction: Researchers control protein release from nanoparticles without encapsulation: U of T Engineering discovery stands to improve reliability and fabrication process for treatments to conditions such as spinal cord damage and stroke May 28th, 2016

Scientists illuminate a hidden regulator in gene transcription: New super-resolution technique visualizes important role of short-lived enzyme clusters May 27th, 2016

Tools

Scientists illuminate a hidden regulator in gene transcription: New super-resolution technique visualizes important role of short-lived enzyme clusters May 27th, 2016

Light can 'heal' defects in new solar cell materials: Defects in some new electronic materials can be removed by making ions move under illumination May 24th, 2016

More light on cancer: Scientists created nanoparticles to highlight cancer cells May 21st, 2016

Nanotubes are beacons in cancer-imaging technique: Rice University researchers use spectral triangulation to pinpoint location of tumors May 21st, 2016

Automotive/Transportation

Technique improves the efficacy of fuel cells: Research demonstrates a new phase transition from metal to ionic conductor May 18th, 2016

A View Through Wood Shows Futuristic Applications: Transparent wood made at UMD could create new windows, cars and solar panels May 5th, 2016

Speedy ion conduction in solid electrolytes clears road for advanced energy devices May 5th, 2016

New spin Seebeck thermoelectric device with higher conversion efficiency created April 26th, 2016

Printing/Lithography/Inkjet/Inks

Physicists create first metamaterial with rewritable magnetic ordering May 23rd, 2016

Electrically Conductive Graphene Ink Enables Printing of Biosensors April 23rd, 2016

Highlights from the Graphene Flagship April 22nd, 2016

Penn engineers develop first transistors made entirely of nanocrystal 'inks April 11th, 2016

NanoNews-Digest
The latest news from around the world, FREE




  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project







Car Brands
Buy website traffic