This is the final version of the article. It first appeared from Wiley via http://dx.doi.org/10.1002/adfm.201502392The self assembly of block-copolymers into the gyroid morphology was replicated into 3D nanostructured conjugated polymers. Voided styrenic gyroidal networks were used as scaffolds for the electrodeposition of two poly(3,4-ethylenedioxythiophene) (PEDOT) derivatives and poly(pyrrole) (PPy). The careful choice of solvents and electrolytes allowed the excellent replication of the initial self-assembled morphology into self-supporting gyroidal conjugated polymer networks. The nanostructured films were employed to fabricate electrochromic devices, exhibiting excellent colour contrast upon switching, with fast switching speeds. The versatility and reliability of this method was demonstrated by the creation of switchable Fresnel zone plates, with which the focussing of light can be switched on and off.We acknowledge the EPSRC EP/G060649/1 for funding. This study was supported by the Nokia Research Centre Cambridge
