B29K25/00

Printing of conducting polymers without toxic solvents

A method for printing of doped conducting polymer includes immersing at least a portion of a surface of a substrate with a coagulation bath. A doped conducting polymer is printed from a nozzle onto the substrate that is within the coagulation bath. The nozzle penetrates below a surface of the coagulation bath at a predetermined distance from the substrate. The doped conducting polymer includes an anionic dopant. The coagulation bath includes a concentration of material that provides a secondary dopant of the doped conducting polymer.