Super sensitive electronic skin

Physicists created super sensitive electronic skin

The American physicists created the super sensitive electronic skin not conceding in durability and flexibility to its biological analog and possessing ultrahigh sensitivity to contacts and vibrations. For the last five years scientists continuously work over creation of the material repeating on the properties skin of the person. In certain cases they managed to achieve considerable successes. So, in November, 2012 the group of physicists under the leadership of Zhenan Bao from Stanford University created the super flexible material, capable to act as a basis for synthetic skin. In the new work the physicists improved skin, in some hundred times having increased its sensitivity to contacts and vibrations. For this purpose scientists built in skin flexible transistors from slices semiconducting silicon – the organic polymers connected with each other by microscopic electrodes from gold. The special braided design allows them to maintain repeated extension and bending without damages. These transistors possess curious property and their conductivity changes at pressure appendix. Experimenting slices of electronic skin, authors picked up such parameters of tension and current at which the device reacted even to the slightest changes in pressure. Scientists worked the invention for creation of the super sensitive sensor of pulse, whose thickness is no more, than at a medical plaster. According to physicists, their invention possesses record for today sensitivity. It reacts to contacts in comparison with other polymeric sensors about 150 times better, and by 20 times surpasses champion in this sphere. It allows applying this material to production of medical microsensors and skinning for pressure sensors on extremities of robots.

source:www.nanonewsnet.ru

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