Green precursors and soft templating for printing porous carbon-based micro-supercapacitors.

The combination of soft lithographic printing and soft templating is used to fabricate high resolution interdigital micro-supercapacitors (MSC). A surfactant-assisted self-assembly produces high surface area ordered mesoporous carbons (490 m 2 g -1 ). For the first time, such precursors are printed via nanoimprint lithography as micro-devices with line width down to 250 nm and a spacing of only 1 µm. The devices are crack-free with low specific resistance (1.2·10 -5 Ωm) and show good device capacitance up to 0.21 F cm -3 .