US Scientists Create First Two-Dimensional Transistor
Just when it looked like electronic components could not get smaller, scientists in
An atom is only about one-tenth of a billionth of a meter wide, so a layer of any material that thin may be considered two-dimensional.
Two groups of scientists - at
Computer processors, memory chips, TV screens and other electronic devices contain billions of silicon-based transistors. These tiny electrical switches have certain limitations, such as rigidity.
"If the layers are very thin the transistor can become flexible, so it doesn't have to be rigid, like it would be in a silicon chip. So people can think of applications like wearable electronics, like, you know, television screens and other things," said Ioannou.
These new transistors can also carry higher current and switch much faster, which is important for high-definition screens.
Ioannou says the achievement could have far-reaching consequences.
"This is the first time every layer is a single [atom] layer, more or less, and that's the novelty of it. Now, how good and how useful it will be, it's still in research phase, but it certainly is an advance," he said.
Scientists say there is no good method for printing a large number of these new transistors on the same substrate, but this proof-of-concept shows that someday it may be possible.
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