Low Operating Voltage Carbon–Graphene Hybrid E-textile for Temperature Sensing
Abstract
Graphene-coated polypropylene (PP) textile fibers are presented for their use as temperature sensors. These temperature sensors show a negative thermal coefficient of resistance (TCR) in a range between 30 and 45 °C with good sensitivity and reliability and can operate at voltages as low as 1 V. The analysis of the transient response of the temperature on resistance of different types of graphene produced by chemical vapor deposition (CVD) and shear exfoliation of graphite (SEG) shows that trilayer graphene (TLG) grown on copper by CVD displays better sensitivity due to the better thickness uniformity of the film and that carbon paste provides good contact for the measurements. Along with high sensitivity, TLG on PP shows not only the best response but also better transparency, mechanical stability, and washability compared to SEG. Temperature-dependent Raman analysis reveals that the temperature has no significant effect on the peak frequency of PP and expected effect on graphene in the demonstrated temperature range. The presented results demonstrate that these flexible, lightweight temperature sensors based on TLG with a negative TCR can be easily integrated in fabrics.
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BibTeX
@article{rajan2026operating,
title = {{Low Operating Voltage Carbon–Graphene Hybrid E-textile for Temperature Sensing}},
author = {Gopika Rajan and Joseph J Morgan and Conor Murphy and Elias Torres Alonso and Jessica Wade and Anna K Ott and Saverio Russo and Helena Alves and Monica F Craciun and Ana I S Neves},
journal = {ACS Applied Materials \& Interfaces},
year = {2026},
month = oct,
doi = {10.1021/acsami.0c08397},
url = {https://hal.science/hal-04650199v1},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Low Operating Voltage Carbon–Graphene Hybrid E-textile for Temperature Sensing
AU - Gopika Rajan
AU - Joseph J Morgan
AU - Conor Murphy
AU - Elias Torres Alonso
AU - Jessica Wade
AU - Anna K Ott
AU - Saverio Russo
AU - Helena Alves
AU - Monica F Craciun
AU - Ana I S Neves
PY - 2026
DA - 2026/10/30
JO - ACS Applied Materials & Interfaces
DO - 10.1021/acsami.0c08397
UR - https://hal.science/hal-04650199v1
AB - Graphene-coated polypropylene (PP) textile fibers are presented for their use as temperature sensors. These temperature sensors show a negative thermal coefficient of resistance (TCR) in a range between 30 and 45 °C with good sensitivity and reliability and can operate at voltages as low as 1 V. The analysis of the transient response of the temperature on resistance of different types of graphene produced by chemical vapor deposition (CVD) and shear exfoliation of graphite (SEG) shows that trilayer graphene (TLG) grown on copper by CVD displays better sensitivity due to the better thickness uniformity of the film and that carbon paste provides good contact for the measurements. Along with high sensitivity, TLG on PP shows not only the best response but also better transparency, mechanical stability, and washability compared to SEG. Temperature-dependent Raman analysis reveals that the temperature has no significant effect on the peak frequency of PP and expected effect on graphene in the demonstrated temperature range. The presented results demonstrate that these flexible, lightweight temperature sensors based on TLG with a negative TCR can be easily integrated in fabrics.
SN - 1944-8244
SN - 1944-8252
ER -