Brown University: Researchers Make New Silicon-Based Nanomaterials: Electronics Applications


Great Things from Small Things .. Nanotechnology Innovation

Semiconductor IIIIChemists from Brown University have found a way to make new 2D, graphene-like semiconducting nanomaterials using an old standby of the semiconductor world: silicon.

In a paper published in the journal Nanoletters, the researchers describe methods for making nanoribbons and nanoplates from a compound called silicon telluride. The materials are pure, p-type semiconductors (positive charge carriers) that could be used in a variety of electronic and optical devices. Their layered structure can take up lithium and magnesium, meaning it could also be used to make electrodes in those types of batteries.

“Silicon-based compounds are the backbone of modern electronics processing,” said Kristie Koski, assistant professor of chemistry at Brown, who led the work.

“Silicon telluride is in that family of compounds, and we’ve shown a totally new method for using it to make layered, two-dimensional nanomaterials.”

Koski and her team synthesised the new materials through vapour deposition in a…

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