TY - JOUR
T1 - Environmentally Friendlier Printable Conductive and Piezoresistive Sensing Materials Compatible with Conformable Electronics
AU - Franco, Miguel
AU - Motealleh, Azadeh
AU - Costa, Carlos M.
AU - Perinka, Nikola
AU - Ribeiro, Clarisse
AU - Tubio, Carmen R.
AU - Carabineiro, Sónia Alexandra Correia
AU - Costa, Pedro
AU - Lanceros-Méndez, Senentxu
N1 - Funding Information:
info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F05256%2F2020/PT#
info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50006%2F2020/PT#
info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F50006%2F2020/PT#
info:eu-repo/grantAgreement/FCT/POR_NORTE/SFRH%2FBPD%2F110914%2F2015/PT#
info:eu-repo/grantAgreement/FCT/OE/SFRH%2FBD%2F145741%2F2019/PT#
This work was supported by the Portuguese Foundation for Science and Technology (FCT): projects UID/FIS/04650/2021, and Stimulus of Scientific Employments 2020.04028.CEECIND (C.M.C.), 2020.04163.CEECIND (C.R.) and CEECINST/00102/2018 Institutional Call (S.A.C.C.). This study forms part of the Advanced Materials program and was supported by MCIN with funding from European Union NextGenerationEU (PRTR-C17.I1) and by the Basque Government under the IKUR program. Funding from the Basque Government Industry Department under the ELKARTEK program is also acknowledged. The authors thank CEMUP for the assistance with XPS analyses.
Publisher Copyright:
© 2023 The Authors. Published by American Chemical Society.
PY - 2023/9/8
Y1 - 2023/9/8
N2 - Flexible and conformable conductive composites have been developed using different polymers, including water-based polyvinylpyrrolidone (PVP), chemical-resistant polyvinylidene fluoride (PVDF), and elastomeric styrene-ethylene-butylene-styrene (SEBS) reinforced with nitrogen-doped reduced graphene oxide with suitable viscosity in composites for printable solutions with functional properties. Manufactured by screen-printing using low-toxicity solvents, leading to more environmentally friendly conductive materials, the materials present an enormous step toward functional devices. The materials were enhanced in terms of filler/binder ratio, achieving screen-printed films with a sheet resistance lower than Rsq < 100 Ω/sq. The materials are biocompatible and support bending deformations up to 10 mm with piezoresistive performance for the different polymers up to 100 bending cycles. The piezoresistive performance of the SEBS binder is greater than double that the other composites, with a gauge factor near 4. Thermoforming was applied to all materials, with the PVP-based ones showing the lowest electrical resistance after the bending process. These conductive materials open a path for developing sustainable and functional devices for printable and conformable electronics.
AB - Flexible and conformable conductive composites have been developed using different polymers, including water-based polyvinylpyrrolidone (PVP), chemical-resistant polyvinylidene fluoride (PVDF), and elastomeric styrene-ethylene-butylene-styrene (SEBS) reinforced with nitrogen-doped reduced graphene oxide with suitable viscosity in composites for printable solutions with functional properties. Manufactured by screen-printing using low-toxicity solvents, leading to more environmentally friendly conductive materials, the materials present an enormous step toward functional devices. The materials were enhanced in terms of filler/binder ratio, achieving screen-printed films with a sheet resistance lower than Rsq < 100 Ω/sq. The materials are biocompatible and support bending deformations up to 10 mm with piezoresistive performance for the different polymers up to 100 bending cycles. The piezoresistive performance of the SEBS binder is greater than double that the other composites, with a gauge factor near 4. Thermoforming was applied to all materials, with the PVP-based ones showing the lowest electrical resistance after the bending process. These conductive materials open a path for developing sustainable and functional devices for printable and conformable electronics.
KW - conductive materials
KW - conformable electronics
KW - doped graphene
KW - functional composites
KW - green processing
UR - http://www.scopus.com/inward/record.url?scp=85168505965&partnerID=8YFLogxK
U2 - 10.1021/acsapm.3c01151
DO - 10.1021/acsapm.3c01151
M3 - Article
C2 - 37705715
AN - SCOPUS:85168505965
SN - 2637-6105
VL - 5
SP - 7144
EP - 7154
JO - ACS Applied Polymer Materials
JF - ACS Applied Polymer Materials
IS - 9
ER -