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30 Mar 2012

Project: Conductive Ink by Jordan Bunker – [via]

Conductive inks have a myriad of different interesting applications. As a quick, additive construction method for electronic circuits, they are especially intriguing. Unfortunately, for a long time they have been just out of reach of the hobby market. They are too expensive to buy in decent quantities, too complicated to make, too resistive to be practical, or require high annealing temperatures (which would ruin many of the materials you’d want to put traces on).

Now, though, thanks to some brilliant minds at the UIUC Materials Research Laboratory, you can make your own decent conductive ink!
This ink seems to address many of the problems that other inks have. It’s particle free (won’t clog print heads!), is easy to make, and anneals to the conductivity of bulk silver at only 90 degrees Centigrade (194 degrees Fahrenheit).

After I stumbled upon this paper last month, I decided that I absolutely had to make some.

I am not a chemist, nor have I done any chemistry since high school, so I ended up having to buy both the glassware as well as the chemicals. Even after buying everything that I needed (and some stuff that I probably didn’t), I only spent around $150.

Conductive Ink - [Link]

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