NANO GENERATOR TO POWER NANO DEVICES

INTRODUCTION

What is the necessary of NANO GENERATOR? Materials Science research is now entered a new phase where the

structure and properties of materials are investigated, characterized and controlled at the nano scale.

Though as sophisticated as their larger counterparts, these devices are still burdened because they rely on an outside power.

Batteries and other traditional sources are too large, and tend to negate the size advantages of nano devices.

To over come these challenges researches are finding alternative ways, and nano generator is one promising answer.

A nano generator take advantage of unique coupled piezo electric & semi conducting properties of zinc oxide nano structure (wires), which produce small electrical charges when they are flexed.

By finding a way to collect electricity from multiple nano wires, the researchers took a big step toward a practical nano-scale power generator.

Schematic showing the experimental setup for the piezoelectric charge detection from an individual barium-titanate nano wire.

Scanning electron microscope image of the suspended nanowire under test.

Schematic diagram of a nano generator

A graph showing spikes of electrical discharge as the nanowires are scanned.

Limitations

Uniformity of nano wires.

Life time.

Applications

Biological sensors and nano devices.

Microelectromechanical sensors.

Conclusion

Researchers expect that with optimization, the nano generator could produce as much as 4 watts per cubic centimeter based on a calculation for a single nano wire

One day by placing these into people's shoes we can generate electricity when walking.

Powering the simple electronic devices like BJT, FET.

The day when we can charge our cell phone or iPod just by going for a stroll around the block could be a step closer.

Thanks to a "nano-generator".