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Johannes Schoiswohl
Posted: Sun Sep 28, 2003 7:31 am
Guest
Hy !

I would like to knwo if somebody has a idea concerning the application of
oxide nanodots.
In my case, we have been able to fabricate oxide clusters consisting of 6
metal and 12 oxygen
atoms on a metal surface. They are mobile at elevated temperature and
diffuse on the metal surface. Now, what could such tiny oxide clusters be
used for in future applications ?

--
-------------------------------------------
DI Johannes Schoiswohl
Inst. f. Experimental Physics
Surface Science Divisions
Universittsplatz 5 / KFU-Graz
8010 Graz
+43 316 380 5219
johannes.schoiswohl@uni-graz.at
---------------------------------------------------------
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Chris Phoenix
Posted: Sun Sep 28, 2003 2:12 pm
Guest
Can you pick them up with a scanning probe tip?
Can you push them together and make them stick covalently, possibly with
the addition of electrical energy from the SPM tip?
When stacking them, do they self-align in predictable ways (making it
easier to place them precisely with sloppy systems?

If so, you might be able to use them as atomically precise building
blocks that could be relatively easy to handle with today's
instruments. The particle size seems small enough to be useful in
building nanoscale mechanical systems of interest, possibly including
mechanochemical systems (molecular assemblers). And metal oxide is
pretty strong and stiff, if you use the right metal (aluminum -> alumina
-> sapphire, iron -> magnetite).

Chris

Johannes Schoiswohl wrote:
Quote:

Hy !

I would like to knwo if somebody has a idea concerning the application of
oxide nanodots.
In my case, we have been able to fabricate oxide clusters consisting of 6
metal and 12 oxygen
atoms on a metal surface. They are mobile at elevated temperature and
diffuse on the metal surface. Now, what could such tiny oxide clusters be
used for in future applications ?

--
-------------------------------------------
DI Johannes Schoiswohl
Inst. f. Experimental Physics
Surface Science Divisions
Universittsplatz 5 / KFU-Graz
8010 Graz
+43 316 380 5219
johannes.schoiswohl@uni-graz.at
---------------------------------------------------------

--
Chris Phoenix cphoenix@best.com http://xenophilia.org
Center for Responsible Nanotechnology (co-founder) http://CRNano.org
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Robert J. Bradbury
Posted: Tue Oct 14, 2003 9:05 am
Guest
What are the optical properties? They are probably too small for quantum dot

applications but there was a recent announcement by NASA about being able
to create a new "glass" based on rapid cooling of high melting point
materials
using an electrostatic suspension system -- "containerless" chemistry. It
might
be interesting to see what kind of lasers you could get with your "nanodots"
uniformly distributed in such a glass. Increased laser power densities have
*lots* of applications (like fusion reactors).

Johannes Schoiswohl wrote:

Quote:
Hy !

I would like to knwo if somebody has a idea concerning the application of
oxide nanodots.
In my case, we have been able to fabricate oxide clusters consisting of 6
metal and 12 oxygen
atoms on a metal surface. They are mobile at elevated temperature and
diffuse on the metal surface. Now, what could such tiny oxide clusters be
used for in future applications ?
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The Eternal Squire
Posted: Wed Nov 05, 2003 12:47 am
Guest
Connect some gold wires and make an atomic-scale metal oxide field effect
transistor?

Johannes Schoiswohl <johannes.schoiswohl@uni-graz.at> wrote in message
news:bl6nr801fvi@enews3.newsguy.com...
Quote:

Hy !

I would like to knwo if somebody has a idea concerning the application of
oxide nanodots.
In my case, we have been able to fabricate oxide clusters consisting of 6
metal and 12 oxygen
atoms on a metal surface. They are mobile at elevated temperature and
diffuse on the metal surface. Now, what could such tiny oxide clusters be
used for in future applications ?

--
-------------------------------------------
DI Johannes Schoiswohl
Inst. f. Experimental Physics
Surface Science Divisions
Universittsplatz 5 / KFU-Graz
8010 Graz
+43 316 380 5219
johannes.schoiswohl@uni-graz.at
---------------------------------------------------------





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