Single Atom Transistor?

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Jan 292010
 

Researchers from Helsinki University of Technology (Finland), University of New South Wales (Australia), and University of Melbourne (Australia) have succeeded in building a working transistor, whose active region composes only of a single phosphorus atom in silicon. The results have just been published in Nano Letters. Continue reading »

Coffee Stain Touchscreens?

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Jan 282010
 

It’s a touchscreen, a solar panel, a computer circuit, and soon, it could be used at home.

Taking advantage of ink’s natural tendency to create “coffee rings,” a group of Israeli scientists has developed a type of ink jet dye that could one day create a range of power-hungry, and power-producing, devices at home.

“Usually these ‘coffee stains’ are a major problem in ink jet printing,” said Shlomo Magdassi, a professor at the Hebrew University of Jerusalem in Israel and co-author of a new paper in the journal ACS Nano. “I got the idea that we could turn this big problem into a big advantage.”
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