Nanotechnology Now







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

Protein Building Blocks for Nanosystems: Scientists develop method for producing bio-based materials with new properties April 17th, 2015

Oxford Instruments commissions high field outsert magnet system for the National High Magnetic Field Laboratory 32 Tesla magnet program April 17th, 2015

QD Vision Expands Product Line with Two-Millimeter Color LCD Display Optic: Color IQ™ Optic Enables Full-Color Gamut for Ultra-Thin Displays and All-in-One Computers April 16th, 2015

The National Science Foundation names engineering researcher Andrea Alú its Alan T. Waterman awardee for 2015: Alú is a pioneer in the field of metamaterials who has developed "cloaking" technology to make objects invisible to sensors April 16th, 2015

Imaging

Combined effort for structural determination April 15th, 2015

JPK reports on the use of the NanoWizard® 3 AFM system at the Hebrew University of Jerusalem April 14th, 2015

Deben reports on the research of Dr Sunita Ho from UCSF using a CCT500 tensile stage to study the behaviour of dental materials April 14th, 2015

The Casiraghi Group, located at the University of Manchester's NanoScience and Spectroscopy Laboratory, use Raman in the study of graphene April 14th, 2015

Chip Technology

Nanotubes with two walls have singular qualities: Rice University lab calculates unique electronic qualities of double-walled carbon nanotubes April 16th, 2015

Graphenea embarks on a new era April 16th, 2015

Quantization of 'surface Dirac states' could lead to exotic applications April 15th, 2015

Study shows novel pattern of electrical charge movement through DNA April 14th, 2015

Nanoelectronics

Nanotubes with two walls have singular qualities: Rice University lab calculates unique electronic qualities of double-walled carbon nanotubes April 16th, 2015

Solution-grown nanowires make the best lasers April 14th, 2015

Water makes wires even more nano: Rice University lab extends meniscus-mask process to make sub-10 nanometer paths April 6th, 2015

Demonstration of 50GHz Ge Waveguide Electro-Absorption Modulator April 2nd, 2015

Discoveries

Protein Building Blocks for Nanosystems: Scientists develop method for producing bio-based materials with new properties April 17th, 2015

Major advance in artificial photosynthesis poses win/win for the environment: Berkeley Lab researchers perform solar-powered green chemistry with captured CO2 April 16th, 2015

Newly-Developed Nanocatalysts Increase Performance of Fuel Cells April 16th, 2015

Lanthanide-Organic Framework Nanothermometers Prepared by Spray-Drying April 16th, 2015

Announcements

Protein Building Blocks for Nanosystems: Scientists develop method for producing bio-based materials with new properties April 17th, 2015

Oxford Instruments commissions high field outsert magnet system for the National High Magnetic Field Laboratory 32 Tesla magnet program April 17th, 2015

Newly-Developed Nanocatalysts Increase Performance of Fuel Cells April 16th, 2015

Lanthanide-Organic Framework Nanothermometers Prepared by Spray-Drying April 16th, 2015

Tools

Oxford Instruments commissions high field outsert magnet system for the National High Magnetic Field Laboratory 32 Tesla magnet program April 17th, 2015

Lanthanide-Organic Framework Nanothermometers Prepared by Spray-Drying April 16th, 2015

Combined effort for structural determination April 15th, 2015

JPK reports on the use of the NanoWizard® 3 AFM system at the Hebrew University of Jerusalem April 14th, 2015

Automotive/Transportation

Newly-Developed Nanocatalysts Increase Performance of Fuel Cells April 16th, 2015

Cobalt film a clean-fuel find: Rice University discovery is efficient, robust at drawing hydrogen and oxygen from water April 15th, 2015

Researchers create first metal-free catalyst for rechargeable zinc-air batteries April 6th, 2015

Optics, nanotechnology combined to create low-cost sensor for gases April 3rd, 2015

Printing/Lithography/Inkjet/Inks

The microscopic topography of ink on paper: Researchers have analyzed the varying thickness of printed toner in unprecedented 3-D detail, yielding insights that could lead to higher quality, less expensive and more environmentally-friendly glossy and non-glossy papers April 14th, 2015

Inkjet-printed liquid metal could bring wearable tech, soft robotics April 8th, 2015

Perpetuus Advanced Materials secures landmark commercial agreement with global technology group Heraeus: Perpetuus will supply innovative alternatives to existing silver and copper-based inks and pastes April 2nd, 2015

Haydale Announce Dedicated Graphene Inks Manufacturing Capability March 25th, 2015

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







© Copyright 1999-2015 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE