TY - JOUR
T1 - Biocompatible Parylene-C Laser-Induced Graphene Electrodes for Microsupercapacitor Applications
AU - Correia, Ricardo
AU - Deuermeier, Jonas
AU - Correia, Maria Rosário
AU - Vaz Pinto, Joana
AU - Coelho, João
AU - Fortunato, Elvira
AU - Martins, Rodrigo
N1 - Funding Information:
info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F50025%2F2020/PT#
info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50025%2F2020/PT#
info:eu-repo/grantAgreement/EC/H2020/787410/EU#
info:eu-repo/grantAgreement/EC/H2020/952169/EU#
This work was financed by national funds from FCT - Fundação para a Ciência e a Tecnologia, I.P., in the scope of the projects LA/P/0037/2020
R.C. acknowledges funding from i3N-FCT I.P. through the PhD Grant UI/BD/151295/2021.
The authors thank Dr. Emanuel Carlos for SEM image acquisition.
Publisher Copyright:
© 2022 The Authors. Published by American Chemical Society.
PY - 2022/10/19
Y1 - 2022/10/19
N2 - Laser irradiation of polymeric materials has drawn great attention as a fast, simple, and cost-effective method for the formation of porous graphene films that can be subsequently fabricated into low-cost and flexible electronic and energy-storage devices. In this work, we report a systematic study of the formation of laser-induced graphene (LIG) with sheet resistances as low as 9.4 ω/sq on parylene-C ultrathin membranes under a CO2 infrared laser. Raman analysis proved the formation of the multilayered graphenic material, with ID/IG and I2D/IG peak ratios of 0.42 and 0.65, respectively. As a proof of concept, parylene-C LIG was used as the electrode material for the fabrication of ultrathin, solid-state microsupercapacitors (MSCs) via a one-step, scalable, and cost-effective approach, aiming at future flexible and wearable applications. The produced LIG-MSC on parylene-C exhibited good electrochemical behavior, with a specific capacitance of 1.66 mF/cm2 and an excellent cycling stability of 96% after 10 000 cycles (0.5 mA/cm2). This work allows one to further extend the knowledge in LIG processes, widening the group of precursor materials as well as promoting future applications. Furthermore, it reinforces the potential of parylene-C as a key material for next-generation biocompatible and flexible electronic devices.
AB - Laser irradiation of polymeric materials has drawn great attention as a fast, simple, and cost-effective method for the formation of porous graphene films that can be subsequently fabricated into low-cost and flexible electronic and energy-storage devices. In this work, we report a systematic study of the formation of laser-induced graphene (LIG) with sheet resistances as low as 9.4 ω/sq on parylene-C ultrathin membranes under a CO2 infrared laser. Raman analysis proved the formation of the multilayered graphenic material, with ID/IG and I2D/IG peak ratios of 0.42 and 0.65, respectively. As a proof of concept, parylene-C LIG was used as the electrode material for the fabrication of ultrathin, solid-state microsupercapacitors (MSCs) via a one-step, scalable, and cost-effective approach, aiming at future flexible and wearable applications. The produced LIG-MSC on parylene-C exhibited good electrochemical behavior, with a specific capacitance of 1.66 mF/cm2 and an excellent cycling stability of 96% after 10 000 cycles (0.5 mA/cm2). This work allows one to further extend the knowledge in LIG processes, widening the group of precursor materials as well as promoting future applications. Furthermore, it reinforces the potential of parylene-C as a key material for next-generation biocompatible and flexible electronic devices.
KW - biocompatible devices
KW - flexible electronic devices
KW - laser-induced graphene
KW - microsupercapacitors
KW - parylene-C
KW - scalable production methods
UR - http://www.scopus.com/inward/record.url?scp=85140022658&partnerID=8YFLogxK
U2 - 10.1021/acsami.2c09667
DO - 10.1021/acsami.2c09667
M3 - Article
C2 - 36209418
AN - SCOPUS:85140022658
SN - 1944-8244
VL - 14
SP - 46427
EP - 46438
JO - ACS Applied Materials and Interfaces
JF - ACS Applied Materials and Interfaces
IS - 41
ER -