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TitleEnvironmentally friendly conductive screen‐printable inks based on N‐Doped graphene and polyvinylpyrrolidone
Author(s)Franco, Miguel
Motealleh, Azadeh
Costa, Carlos M.
Hilliou, L.
Perinka, Nikola
Ribeiro, Clarisse
Viana, Júlio César
Costa, Pedro
Lanceros-Méndez, S.
Keywordsbiocompatible inks
conductive inks
green electronics
screen printing
Issue date2021
JournalAdvanced Engineering Materials
Abstract(s)[Excerpt] The development of polymer-based conductive inks has gained increasing interest in the areas of printed and molded electronics. Graphene-based materials are explored in this scope, reduced graphene oxide (rGO) being among the most used conductive filler components of the inks. Herein, rGO is doped with nitrogen to obtain N-rGO; the replacement of oxygen atoms by nitrogen ones increases the electrical conductivity of graphene. Polymer-based conductive inks reinforced with graphene are developed based on polyvinylpyrrolidone (PVP) as polymer binder and dihydrolevoglucosenone (Cyrene) as solvent, leading thus to environmentally friendly conductive inks. Screen-printable inks are optimized in terms of viscosity and adhesion properties, leading to printed films with sheet resistance close to Rs ¼ 1 kΩ sq1 , the graphene:PVP inks being also biocompatible and nontoxic.
AccessRestricted access (UMinho)
Appears in Collections:IPC - Artigos em revistas científicas internacionais com arbitragem

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