• September 2018
    M T W T F S S
    « Jul    
     12
    3456789
    10111213141516
    17181920212223
    24252627282930
  • Advertisements

Graphene Enables Clock Rates in the Terahertz Range

 Helmholtz-Zentrum Dresden-Rossendorf
Christine Bohnet
September 10, 2018

Researchers at Helmholtz Zentrum Dresden-Rossendorf (HZDR), the University of Duisburg-Essen (UDE), and the Max Planck Institute for Polymer Research (MPI-P), all in Germany, have demonstrated that graphene can convert electronic signals with frequencies in the gigahertz range extremely efficiently into signals with several times higher frequency. The researchers used graphene containing many free electrons from the interaction of the graphene with the substrate onto which it is deposited, as well as with the ambient air. When these mobile electrons are excited by an oscillating electric field, they share their energy with the other electrons in the graphene, which react like a heated fluid. An electronic “vapor” forms within the graphene, causing rapid and strong changes in its conductivity. MPI-P researcher Mischa Bonn said, “We have demonstrated that carbon-based electronics can operate extremely efficiently at ultrafast rates. Ultrafast hybrid components made of graphene and traditional semiconductors are also conceivable.”

MORE

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

%d bloggers like this: