Self-powered nanodevices that don't need new batteries

Kinget, a professor of electrical engineering, is
working on them. He and his colleagues from the College of Engineering
are trying to build self-powered systems using a few
nanoscale devices capable of transmitting and receiving signals
wireless with so little power consumption you never need
replace your batteries.

Instead, they take advantage of small
amounts of ambient solar energy to recharge. Such
Energy efficiencies could dramatically reduce the cost of
operation of a variety of these devices at the same time, while
time eliminating the need for maintenance. These sensors
they would only need to be installed once and could remain in your
place, operating autonomously, practically until it is
wear out or disintegrate on their own.

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