On‐Chip Direct Laser Writing of PAN‐Based Carbon Supercapacitor Electrodes

Back Cover: Article number 2100731 describes the fabrication of a micro-supercapacitor on printed circuit board. Volker Strauss, Alexander J. C. Kuehne, and co-workers develop laser-carbonization process for polyacrylonitrile films, leading to patterned, interdigitated carbon electrodes. The unexposed, non-carbonized areas film can be peeled-off fully expose carbonized electrodes an electrolyte. Specific capacities as high 260 µF cm–2 achieved.