Conductive Silver Ink Lets You Draw Working Circuits On Paper

Posted on April 2, 2012

Professor Jennifer Lewis, a materials scientist at the University of Illinois, Urbana-Champaign, led a team of researchers in the development of a silver-based ink that can conduct electricity. The new ink is a transparent solution of silver acetate and ammonia. The silver remains dissolved in the solution until it is printed, and the liquid evaporates, yielding conductive features.

Analisa Russo, a graduate student in Lewis's research group, explains how the conductive silver ink works and shows how to make the ink in this video. Take a look:

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