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3D Nanostructured Conjugated Polymers for Optical Applications
Author(s) -
Dehmel Raphael,
Nicolas Alexandre,
Scherer Maik R. J.,
Steiner Ullrich
Publication year - 2015
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201502392
Subject(s) - materials science , conjugated system , electrochromism , polymer , gyroid , nanotechnology , copolymer , self assembly , morphology (biology) , nanostructure , replication (statistics) , electrode , composite material , chemistry , statistics , mathematics , biology , genetics
The self assembly of block‐copolymers into the gyroid morphology is replicated into 3D nanostructured conjugated polymers. Voided styrenic gyroidal networks are used as scaffolds for the electrodeposition of two poly(3,4‐ethylenedioxythiophene) derivatives and poly(pyrrole). The careful choice of solvents and electrolytes allows the excellent replication of the initial self‐assembled morphology into self‐supporting gyroidal conjugated polymer networks. The nanostructured films are employed to fabricate electrochromic devices, exhibiting excellent color contrast upon switching, with fast switching speeds. The versatility and reliability of this method are demonstrated by the creation of switchable Fresnel zone plates, with which the focussing of light can be switched on and off.