FABRICATION OF PATTERNED, ELECTRICALLY CONDUCTING POLYPYRROLE USING A SELF-ASSEMBLED MONOLAYER - A ROUTE TO ALL-ORGANIC CIRCUITS

This paper describes the use of patterned self-assembled monolayers to fabricate small, two-dimensional patterns of electrically functional polypyrrole on a gold electrode. These patterns can be transferred to an insulating polydimethylsiloxane substrate. Thin (10-100 mu m) polypyrrole wires retain their electrical conductivity over millimeter length scales. Interdigitated fingers of polypyrrole spaced 50 mu m apart are electrically insulated from one another. Polypyrrole can be electrochemically polymerized on patterns with size features of 2 mu m into films that are 200-400 nm thick.