Israel Continues to Lead in Nanotech

Dubbed "nanodumbells", the new technology offers a solution to problems of building nanocrystal transistors.

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, | updated: 18:31

Following the announcement earlier this year that researchers from the Weizmann Institute of Technology had developed a new type of nanotube - which may form the basis for future nanosensors, catalysts and chemistry-on-a-chip systems - researchers at Hebrew University in Jerusalem have developed their own nanotechnology building blocks. The development was reported upon in an article in the current issue of Science magazine.

Dubbed "nanodumbells" because of their distinctive shape, the new technology offers a solution to problems of building nanocrystal transistors, the basic component of computer chips. Semiconductor nanocrystals are tiny particles with dimensions of merely a few nanometers (one millionth of a millimeter).

A research team headed by Professor Uri Banin of the Department of Physical Chemistry and the Center for Nanoscience and Nanotechnology of Hebrew U. succeeded in attaching gold tips onto nanorods by a simple chemical reaction, facilitating strong chemical bonds between the gold and the semiconductor part of the nanotube, leading to good electrical connectivity. Such a process will make it possible to successfully connect billions of nanorods to nanoelectronic circuitry, by creating self-assembling chain structures of nanocrystals.





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