Pingie: HTTP:: New Nanoscale Sensors Need No Power Source

HTTP:: New Nanoscale Sensors Need No Power Source
--------
Nanoscale sensors can be used for a wide variety of applications, in fields such as detecting dangerous molecules, or for sensing sounds in artificial ears. Their main drawback is the fact that they need to be integrated in larger devices, consisting of bulky power sources and integrated circuits, which considerably reduces their suitability for more uses. But that is all about to change, as researchers at the Georgia Institute of Technology (Georgia Tech) have recently demonstrated the first self-power nanosensor. The nanoscale device can function on its own, and needn't be attached to external power sources, or other equipment. It is made entirely out of freestanding zinc-oxide nanowires that have the ability to generate electrical potential when placed under stress. This makes them behave in very much the same way transistors do, Technology Review reports. The research group that developed the new device was led by Georgia Tech Professor of Materials Science Zhong Lin W!
ang, who had conducted work on piezoelectric nanowires and nanogenerators before. What the scientists basically get from the nanowires is a vertical field-effect transistor, with a diameter of just 25 nanometers. A part of the nanowires is embedded in a substrate, which has gold electrodes inside. These devices act as a source and a drai...
--------
http://news.softpedia.com/news/New-Nanoscale-Sensors-Needs-No-Power-Source-122916.shtml
--------
This e-mail was sent by Experiment23 Inc., located in New York, NY
10163. To not receive further e-mails, please visit
http://help.pingie.com