Neoseeker.com Forum Thread: MIT creates a carbon nanotube pencil thats able to draw electronic circuits. - page 1

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original thread: http://www.neoseeker.com/forums/17/t1773313-mit-creates-carbon-nanotube-pencil-thats-able-to-draw-electronic-circuits/


Author:   The Slayer
Date:   Oct 09, 12 at 4:05pm (PST)
Subject:   MIT creates a carbon nanotube pencil thats able to draw electronic circuits.
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http://www.extremetech.com/extreme/137555-mit-creates-carbon-nanotube-pencil-doodles-some-electronic-circuits

quote


A team of MIT chemists have created a carbon nanotube “lead” that can be used to draw freehand electronic circuits using a standard, mechanical pencil.

With MIT’s carbon nanotube pencil, the lead is formed by compressing single-walled carbon nanotubes (SWCNT), until you have a substance that looks and behaves very similarly to graphite. The difference, though, is that drawing with MIT’s pencil actually deposits whole carbon nanotubes on paper — and carbon nanotubes have some rather exciting properties.

In this case, MIT is utilizing the fact that SWCNTs are very electrically conductive — and that this conductivity can be massively altered by the introduction of just a few other atoms, namely ammonia



Pretty cool IMO. Though not sure what use it would be unless you just want to make your own circuit board. It would be awesome if you could combine this into a 3D printer and print your own circuit board.



Author:   harbin
Date:   Oct 09, 12 at 5:54pm (PST)
Subject:   re: MIT creates a carbon nanotube pencil thats able to draw electronic circuits.
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Do you mean that I can now draw a working computer on some cardboard in a cardboard box case?

Because that would be pretty sweet if you could



Author:   The Slayer
Date:   Oct 09, 12 at 6:01pm (PST)
Subject:   re: MIT creates a carbon nanotube pencil thats able to draw electronic circuits.
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A modern computer? Possibly, if you have all the chips and sockets and connectors you need and a really, really fine nanotube pencil, plus lots and lots of time, plus a way to design it out so you know where to draw the lines, then possibly.

But you might be able to build a very, very basic 8 bit computer. You will still need a few chips for it but it will be a lot easier. You wont be able to do much with it though.

Might be a lot easier to do with a 3D printer that way you can design the computer on your computer then print it out.



Author:   hiigaran
Date:   Oct 09, 12 at 9:45pm (PST)
Subject:   re: MIT creates a carbon nanotube pencil thats able to draw electronic circuits.
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youre only drawing the pathways for the circuits, harbs. you still need the components. its like building a city. you can build all the roads you want, but you still need buildings for the roads to lead anywhere useful.

also, i could swear ive read this news a few years back. in this forum as well. hmm, maybe i got a case of the ol' deja vu.


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