TY - JOUR
T1 - Laser-Induced Graphene Strain Sensors Produced by Ultraviolet Irradiation of Polyimide
AU - Carvalho, Alexandre F.
AU - Fernandes, António J. S.
AU - Leitão, Cátia
AU - Deuermeier, Jonas
AU - Marques, Ana Carolina
AU - Martins, Rodrigo
AU - Fortunato, Elvira
AU - Costa, Florinda M.
N1 - The work was carried out in the scope of project UID/CTM/50025/2013, funded by the FCT-MCTES and co-funded by the FEDER under the PT2020 partnership agreement. A.C. acknowledges the PhD grant DAEPHYS–FCT PD/BD/114063/2015, and the funding from “Programa de Estímulo à Investigação 2016” from Fundação Calouste Gulbenkian. A.M. acknowledges the PhD grant PD/BD/115173/2016. Further funding was received from the European Union’s Horizon 2020 research and innovation program through the project HERACLES (Project No. 700395).
PY - 2018/12/27
Y1 - 2018/12/27
N2 - Laser-induced graphene (LIG) can be obtained by irradiation of a polymer by a laser source. The present work demonstrates that it is possible to obtain this kind of material using an ultraviolet laser instead of the typical infrared source. Using this approach, a fourfold decrease in the penetration depth (5 µm) is achieved, while the spatial resolution is doubled. Electromechanical strain LIG sensors are patterned in polyimide substrates with different thicknesses and their performance to strain, bending, and force inputs is measured. A low-cost arterial pulse wave monitor is built, exploring the high force sensitivity of the sensors produced on the thinner substrates.
AB - Laser-induced graphene (LIG) can be obtained by irradiation of a polymer by a laser source. The present work demonstrates that it is possible to obtain this kind of material using an ultraviolet laser instead of the typical infrared source. Using this approach, a fourfold decrease in the penetration depth (5 µm) is achieved, while the spatial resolution is doubled. Electromechanical strain LIG sensors are patterned in polyimide substrates with different thicknesses and their performance to strain, bending, and force inputs is measured. A low-cost arterial pulse wave monitor is built, exploring the high force sensitivity of the sensors produced on the thinner substrates.
KW - Kapton
KW - laser-induced graphene
KW - strain sensors
KW - UV lasers
UR - http://www.scopus.com/inward/record.url?scp=85056351703&partnerID=8YFLogxK
U2 - 10.1002/adfm.201805271
DO - 10.1002/adfm.201805271
M3 - Article
AN - SCOPUS:85056351703
SN - 1616-301X
VL - 28
JO - Advanced Functional Materials
JF - Advanced Functional Materials
IS - 52
M1 - 1805271
ER -