Novel ionic liquid - polymer composite and an approach for its patterning by conventional photolithography

A novel crosslinkable, conductive, highly transparent composite material based on a photoresist and an ionic liquid (the names of the composites are not announced here due to the current procedure of patenting) is presented. The composite possesses a good and stable ionic conductivity (up to 10 mS cm
^-1
at room temperature) over a wide frequency bandwidth (1 kHz - 1 MHz) and is optically transparent (transmission value of 90 % for a 170 μm thick film). In addition, an approach for the patterning of the composite material by conventional photolithography with a good spatial resolution (line width of 20 - 30 μm) is introduced. The unique properties of the material are utilized for time- and cost-saving direct manufacturing of electrically conductive, highly transparent microcomponents.