Several teams of Dutch universities have a molecule that functions as a resonant tunneling device, a component that works with certain radio frequencies and is used for parts of mobile phones and wi-fi devices.
The molecule is the result of research of the TU Delft, the University of Groningen and the FOM Foundation. According to the researchers this is the first time that a resonant tunneling device at this scale is designed and these features are normally larger, more complex, and from multiple materials. “This is the ultimate limit for reducing the size of the current electronic components, such as diodes, transistors, and so called resonant tunneling devices.”, makes the Foundation for Fundamental Research of Matter known.
Resonant tunneling devices are used to electrical signals, such as gsm and wi-fi signals to strengthen. They make use of the effect that an increase of the applied voltage leads to a decrease of the electric current that runs through it, i.e. negative differential conductance. The researchers show that this negative differential conductance when the molecule in question has a strong presence, and moreover the conductivity to adjust to the molecule to draw. They do this by the distance to vary between the two electrodes to which the molecule is stuck.
According to the researchers, is the invention an interesting step in the further miniaturization of electronic components. So the design can be used for the design of molecular diodes. The scientists publish the data in the latest edition of the scientific journal Nature Nanotechnology.
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