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Researchers Develop Heat Driven Transistor


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The new heat-driven transistor.

Researchers at Linkoping University in Sweden say they have developed a heat-driven transistor that can be used in a wide range of applications.

Credit: R&D Magazine

Researchers at Linkoping University in Sweden say they have developed a new transistor that can be used in a wide range of applications, including detecting small temperature differences and using functional medical dressings to monitor the healing process.

"We are the first in the world to present a logic circuit, in this case a transistor, that is controlled by a heat signal instead of an electrical signal," says Linkoping professor Xavier Crispin.

The researchers say the new transistor is 100 times more sensitive to heat than traditional thermoelectric materials, which means a single connector from the heat-sensitive electrolyte is sufficient.

The researchers found one sensor can be combined with one transistor to create a "smart pixel." A matrix of smart pixels then can be used instead of the sensors that are currently used in heat cameras.

In addition, the technology could be used to create a new heat camera in a mobile device at a low cost.

"When we had shown that the capacitor worked, we started to look for other applications of the new electrolyte," Crispin says.

From R&D Magazine
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Abstracts Copyright © 2017 Information Inc., Bethesda, Maryland, USA


 

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