Conductive inks and pastes are key to the creating of flexible and hybrid electronics. Conductive materials allow the printed portion of the device to function electronically. It is also a sizable market: estimates place the conductive ink segment at more than $2 billion. Conductive inks can be made from any material that is, well, conductive. Silver and carbon-based inks are the primary choices, with copper of interest. However, copper has issues with oxidation that make it less ideal for prin...