Some Scientifics in Spain IMDEA Nanoscience and the Universities from Purdue y San Diego (EEUU), have discovered that creating perfect nano structures in different material will help to transmit and have better electronic devices summarizing 😉
The electronic circuits are mainly made with a rain of particles of liquid metal through a mask with the form of the circuit, but with this technique the forms are irregular causing that our Lap Top get hot while we use them.
This problem could be solved by using crystalline metal nanostructures, which have smooth edges and surfaces without defects, which are better conductors, but had not been produced in the laboratory. The manufacture of crystalline metal nanostructures has been impossible until now because Scientifics could not enter the metal into the mold at room temperature without breaking the mold, and if warmed the metal first, this just cast the mold.
Due the flat design of these new nano forms, these could be used in many technologies to transfer energy and have a better material improving their performance up 100%. Having a huge impact in future economy.
This new nanofabrication technique, called LSI for its acronym in English (Laser Shock Imprint), uses a silicon mold with the final shape of the circuit for generating nanostructures, as in baking molds used to shape the cakes. The difficulty lies in making the metal into the mold, as this would require melt and solidify very quickly, to prevent mold and metal soldiers remain irreversibly.
The LSI technique in the metal induces a state of matter known as “superplasticity”, which allows the metal to deform to take the shape of the silicon mold without adhering to it.
To get a thin layer of metal is placed on the mold and coated with graphite. This sandwich is covered in turn with a sheet of glass. Following is a high-power laser pulse passing through the glass and graphite fires sublimates. The sublimation of graphite causes a sharp increase in volume, having no room to expand, generating shock waves that hit the metal. This causes the metal hit status acquiring superplasticity, which eventually take the shape of the seal while maintaining its crystal structure.
Metal crystal structures of nanometer size generated by LSI have smooth edges, atomic precision and practically free of defects. These metallic crystals facilitate the passage of electric current and exhibit excellent mechanical strength, making them ideal for the manufacture of ultra-fast, flexible and low-energy electronic devices candidates.
In the near future, the manufacture of components by LSI will create touchscreens covered with nanostructures, capable of interacting with light and generate 3D images, plus more responsive and cost biosensors.