-ANAHEIM, 29 March 2011 - after six years of intensive effort, scientists reports development of the first commercially viable Nano generator, a flexible chip, the movements of the body use finger can impetus in the future a pinch now way to - electricity beat. Speech here today at the 241st national meeting & exposition of the American Chemical Society, described, promotion of the device power output of thousands of times and the voltage of 150 times finally Club decided from the lab and to everyday life.
"This development represents a milestone on the road production of portable electronic devices that can be powered by body movements without the use of batteries or wall outlets,", said lead scientist Zhong Lin Wang, PhD. "our nano generator are willing to change life in the future." "Their potential is limited only by the imagination."
The latest improvements have a Nano generator powerful enough drive corporate liquid - crystal display, led light-emitting diodes and laser diodes. By saving the generated charges with a capacitor, the output power is capable, periodically driving a sensor and the signal wirelessly transferred.
"If we can sustain the rate of improvement, the Nano generator can find many other applications that require more power," he added. Wang are cited, such as electronic devices tracks enable Nano generator powered within the sole of a shoe. implanted insulin pumps powered by a heart-beat; and environmental sensors of nano generator flutter in the wind-powered.
Wang and colleagues demonstrated commercial viability of the latest Nano generator it is that makes an LED light and a liquid crystal as widely used in many electronic devices, display such as calculators and computers. The power came from expressed that nano generator between the fingers.
The key to the technology is zinc oxide (ZnO) Nanowires. ZnO Nanowires are piezoelectric - an electric current can be charged or generate flexed. This movement can virtually every body movement such as walking, a heartbeat or blood throughout the body. The nanowires can power generation as a response to wind, rolling tires, or many other types of movement.
The diameter of a ZnO nano wire is so small that fit 500 of the lines in the width of a single human hair. Wang's Group found to capture a way and to combine the electrical charge of millions of nanoscale zinc oxide wires. It developed also an efficient way of nanowires on flexible polymer chips, to deposit about a quarter the size of a postage stamp. Five Nano generator stacked together produce about 1 micro ampere output current at 3 volts - about the same voltage of two regular AA batteries (about 1.5 volts each) generated.
"While a few volts as much does not seem to, it has grown by leaps and bounds compared to older versions of nano generator", a scientist at the Georgia said Wang Institute of technology. "Additional nanowires and more Nano generator, stacked together, enough energy for larger electronics, such as produce, for example, an iPod turn on or charge a cell phone could."
Wang said that the next step is to further improve the output of the Nano generator and find a company that produce nano generator. It could hit the market in three to five years, he estimated. The device first application is probably as a power source for small environmental sensors and sensors for the infrastructure monitoring.
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