Nanomechanical Controled Oscillator

Posted on November 23, 2013


nnano.2013.232-f4Scientists from Columbia University have created the worlds smallest FM transmitter by harnessing the electromechanical properties of the worlds strongest known material – Graphene.

Graphene is a single atomic layer of carbon atoms that has both high strength and electrical characteristics which rival silicon.

The team of Electrical and Mechanical engineers built a nanomechanical oscillator with a center frequency of about 100 Mhz, “which lies right in the middle of the FM radio band (87.7 to 108 MHz),” the news release announcing the research says.

” The team took advantage of graphene’s mechanical ‘stretchability’ to tune the output frequency of their custom oscillator, creating a nanomechanical version of an electronic component known as a voltage controlled oscillator (VCO),” the news release says.

They used low frequency audio, pure tones and songs from an iphone, to modulate the carrier, and demodulated them with an ordinary FM receiver.

This research, the release says, is an important step in developing practical technological uses for graphene.

Read the entire press release here.

The research is published in the journal “Nature Nanotechnology” and is available to anyone with a subscription.

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Inflatable Antenna’s for Cubesats.

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Radio signals from the sun.

A solar powered battery woven into fabric for powering wearable electronics.

Posted in: Research