Fig. 1. Schematic representation of the fabrication process and of the structure of ultraconformable solution-processed transistors.
a Fabrication process flow for all-organic ultrathin OFETs: (i) PDAC spin-coating, (ii) layer-1 and layer-2 PVF spin-coating, (iii) ink-jet printing of PEDOT:PSS source/drain electrodes on layer-1, (iv) ink-jet printing of the organic semiconductor onto the electrodes over layer-1, (v) layer-1 and layer 2 delamination in water, (vi) layer-1 recollection on a plastic ring, (vii) recollection of layer-2 on layer-1, (viii), ink-jet printing of PEDOT:PSS gate electrodes. b Lateral view scheme and c overview of the ultrathin all-organic transistors.