Published in the journal
Using a doped-graphene matrix to slow down and then trap atoms of the precious metal osmium the researchers were able to control and quantify the growth of metal-crystals. When the trapped atoms come into contact with further osmium atoms they bind together, eventually growing into 3D metal-crystals.
"Tailoring nanoscopic objects is of enormous importance for the production of the materials of the future", says Dr Barry from the University's
Prof. Sadler says: "Nanocrystallometry's significance is that it has made it possible to grow with precision metal-crystals which can be as small as only 0.00000015cm, or 15 angstrom, wide. If a nanodevice requires a million osmium atoms then from 1 gram of osmium we can make about 400 thousand devices for every person on this earth. Compared to existing methods of crystal growth Nanocrystallometry offers a significant improvement in the economic and efficient manufacture of precision nanoscopic objects."
The researchers argue that the new method possesses a range of potential uses. "We envision the use Nanocrystallometry to build precise, atomic-level electronic circuits and new nano-information storage devices. The method also has significant potential for use in the biosensing of drugs, DNA and gases as well for creating unique nano-patterns on surfaces for security labelling and sealing confidential documents. Nanocrystallometry is also an innovative method for producing new metal nano-alloys, and many combinations can be envisaged. They may have very unusual and as yet unexplored properties", commented Dr Barry.
Nanocrystallometry was made possible by state-of-the-art facilities that are only to be found in the
Commenting on the commercial potential for Nanocrystallometry Andrew Lee, Business Development Manager at
Keywords for this news article include: Chemicals, Chemistry,
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