Writing with conducting polymer

In this paper, we present an original and straightforward route to prepare conducting polymer pattern in substrates such as, plastic, transparence sheet, glossy paper or in any substrate material found in standard working office. This process consist in replacing the conventional ink used in any DeskJet printer, for a solution of transition metal that will be used to print the desired pattern on a substrates previously soaked in an aqueous solution of conducting polymer monomer. Soon after the patterns are written a UV light is used to develop the printed characters. The measured conductivity of the printed conducting polymer patterns in glosss paper is the order of 2 × 10−2 S/cm. This contribution describes the use of a fast and low-cost technology to produce organic microstructures for microelectronic applications.