Printing Nanostructures on Glass


 


Researchers at the University of Connecticut and NIMS are printing periodic nanostructures on glass. The team is capable of forming the structure on the surface of polydimethylsiloxane (PDMS) and transferring it to glass.

The team can create materials with useful functions like water repelling without complex processes. Further, the technique may be used in the future to create anti fogging or generate structural colors on surfaces (often used in gas sensors).

This research was published in Advanced Science.

Periodic nano/microstructures are a focus of research in materials science. This is due to their diverse functions. Creating them requires large, expensive equipment and is a complex process. Also, creating periodic nano/microstructures over large surfaces areas is very challenging.

Scientists developed a method for printing a periodic micro/nanostructure. They used a glass substrate surface using a PDMS slab. The slab contains liquid PDMS, which functions as an ink. The slab forms a wrinkled structure on the surface. This is transferred to the glass surface by bringing the PDMS slab in contact with the glass and removing it, leaving the periodic micro/nanostructure behind. 

Scientist can also print columnar and wavy structures using this technique. The methodology could also be used to create superhydrophobic and superoleophobic surfaces, potentially to be used in water harvesting. 

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