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November 01, 2005

Systematic analysis of temperature/pressure variation on cadmium selenium growth

What are called nanosaws, nanocombs and nanowires can be grown (self-assembled) from cadmium selenium. A study of the temperature and pressure conditions were systematically varied and the impact on the growth was determined.

The nanosaws and combs seem to be 2 microns wide.
I think the nanowires are a few nanometers thick.

While this is still at a larger scale than molecular manufacturing systems...achieving greater control of 3 dimensional structures is an improvement towards top down control.

they use a vapor-liquid-solid process.

the work was done at georgia tech.

http://www.nanoscience.gatech.edu/zlwang/paper/2005/05_AM_3.pdf

http://gtresearchnews.gatech.edu/newsrelease/nanomanufacturing.htm

http://www.nanoscience.gatech.edu/zlwang/paper/2004/04_JACS_1.pdf

Brian

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