Electrical | Posted on
May 8th, 2013 by
Daniel Smith
In a paper titled “Choosing a Gate Dielectric for Graphene Based Transistors” the applications of a semiconducting form of graphene are examined. As we have seen before, single-layer graphene is not a semiconductor, it is a zero band gap conductor (a semimetal). Efforts are well underway to introduce band gaps to graphene, which would make it semiconducting with a room temperature mobility an order of magnitude higher than silicon. The race is already underway to find applications for such a material once the remaining technical challenges have been overcome. An application of semiconducting graphene is the design of next-generation, fast switching semiconductor metal oxide field effect transistors (MOSFETs).
Read more on: The Graphene Revolution: Part 5
Fluid | Posted on
May 2nd, 2013 by
Daniel Smith
Graphene can be created by way of thermal decomposition at high vacuum. In order to design and optimize these high vacuum systems engineers might look to simulation, but there are currently not many modeling tools that are up to the task. Let’s have a look at how vacuum systems are relevant to graphene production, why you should simulate them, and how.
Read more on: The Graphene Revolution: Part 4
Electrical | Posted on
March 27th, 2013 by
Daniel Smith
In a previous blog entry I discussed some of the exotic properties of graphene. The fact that graphene consists of a single layer of atoms means the aspect ratio of any graphene-based structure may be very high. High aspect geometries present their own array of modeling challenges.
Read more on: The Graphene Revolution: Part 2
News | Posted on
March 12th, 2013 by
Daniel Smith
Graphene is a special type of material consisting of a single layer of carbon atoms arranged in a hexagonal lattice. Graphene in its stable form was discovered at the University of Manchester in 2003 (coincidentally while I was there studying for my Masters degree) and resulted in Nobel Prizes in 2010 for the two researchers who discovered it. Recently, graphene has been making the mainstream news; the European Commission has pledged €1 billion (yes, that’s billion with a b) to commercialize the fabrication and applications of graphene.
Read more on: The Graphene Revolution: Part 1
