Researchers have graphene exploit for a useful application. Due to unique properties of the material, in turn, knew a few Americans, the world’s smallest fm transmitter to build.
The small transmitter was developed by the staff of the university of Columbia, that the mechanical and electrical properties of graphene combined to a nanomechanisch electrical system. The nems-transmitter, a scaled-down version of mems technology, makes use of the strain in graphene to the frequency of a dc-controlled oscillator to vary. The frequency of the fm transmitter, which the researchers built is about 100MHz. Thus, they managed the song Gangnam Style with the help of FM modulating to music to a conventional receiver.
The small piece of graphene into a feedback circuit, causing it to spontaneously went to oscillate. By the voltage of an electrode under the 2 to 4 µm long strip of graphene to vary, bending the strip to a greater or lesser degree, to the electrode. The strain in the graphene is caused, modulates the resonance frequency.
For now, the graphene-oscillators have a relatively low signal-to-noise ratio, what need to improve for a practical application can be found. The researchers think their grafeenoscillators in the future to be able to convert as a component in wi-fi receivers and transmitters. The simple adjustment of the oscillation frequency of the grafeenoscillators would smaller circuits. In addition, the graphene may be can be integrated with siliciumcircuits. 