title: Three-Dimensional Organic Conductive Networks Embedded in Paper for Flexible and Foldable Devices.
abstract: The fabrication of three-dimensional (3D) polypyrrole conductive tracks through the porous structure of paper is demonstrated by the first time. We combined paper microfluidics and gas-phase pyrrole monomers to chemically synthesize polypyrrole-conducting channels embedded in-between the cellulose fibers. By using this method, foldable conductive structures can be created across the whole paper structure, allowing the electrical connection between both sides of the substrate. As a proof of concept, top-channel-top (TCT) and top-channel-bottom (TCB) conductive interconnections as well as all-organic paper-based touch buttons are demonstrated.
authors.affiliation: Brazilian Nanotechnology National Laboratory (LNNano), CNPEM , 13083-970 Campinas, São Paulo, Brazil.
authors.forename: Murilo
authors.initials: M
authors.lastname: Santhiago
authors.affiliation: Brazilian Nanotechnology National Laboratory (LNNano), CNPEM , 13083-970 Campinas, São Paulo, Brazil.
authors.forename: Jefferson
authors.initials: J
authors.lastname: Bettini
authors.affiliation: Brazilian Nanotechnology National Laboratory (LNNano), CNPEM , 13083-970 Campinas, São Paulo, Brazil.
authors.forename: Sidnei R
authors.initials: SR
authors.lastname: Araújo
authors.affiliation: Brazilian Nanotechnology National Laboratory (LNNano), CNPEM , 13083-970 Campinas, São Paulo, Brazil.|Institute of Physics "Gleb Wataghin" (IFGW), UNICAMP , 13083-859 Campinas, São Paulo, Brazil.|Department of Physical Chemistry, Institute of Chemistry, University of Campinas , 13084-862 Campinas, São Paulo, Brazil.
authors.forename: Carlos C B
authors.initials: CC
authors.lastname: Bufon
keywords: conductive paper and three-dimensional conductive devices; flexible electronics; foldable devices; paper microfluidics; paper-based devices; polypyrrole