Inkjet printing process of organic single-crystal thin films. The top half of the image shows the reverse sequence between semiconductor solution and the anti-solvent; DS-1 (left) and DS-2 (right). In the bottom half of the image, the anti-solvent ink (A) is first inkjet-printed. The solution ink (B), which contains the semiconductor is overprinted sequentially to form intermixed droplets (step 2). Semiconducting thin films grow at the liquid-air interfaces of the droplet (step 3) before the solvent fully evaporates (step 4) [134, 135].