next-generation electronic devices tagged posts

Research appearing in ACS Nano reveals the ballistic movement of electrons in graphene in real-time.

The observations made at the University of Kansas’ Ultrafast Laser Lab could lead to breakthroughs in governing electrons in semiconductors, fundamental components in most information and energy technology.

“Generally, electron movement is interrupted by collisions with other particles in solids,” said lead author Ryan Scott, a doctoral student in KU’s Department of Physics & Astronomy.

“This is similar to someone running in a ballroom full of dancers. These collisions are rather frequent—about 10 to 100 billion times per second. They slow down the electrons, cause energy loss, and generate unwanted heat...

The new device is smaller than a thumbnail with a size of 0.1 x 4mm, and could be integrated into everyday electronic devices like smartphones. Credit: CUDOS

Researchers develop new platform making next-generation electronic devices more advanced. Integrated circuits, ie chips, are used in everyday electronic equipment like mobile phones and computers. It is a set of electronic circuits on one small flat piece of semiconductor material, normally silicon. But this material has some limitations when it comes to processing data. To overcome this, researchers are developing optical circuits made of chalcogenide glass. This is used for ultrafast telecommunication networks, transferring information at the speed of light.

Integrating these glass optical circuits into silicon chips could lead to a...