2 research outputs found
All-Graphene-Based Highly Flexible Noncontact Electronic Skin
Noncontact
electronic skin (e-skin), which possesses superior long-range and
high-spatial-resolution sensory properties, is becoming indispensable
in fulfilling the emulation of human sensation via prosthetics. Here,
we present an advanced design and fabrication of all-graphene-based
highly flexible noncontact e-skins by virtue of femtosecond laser
direct writing (FsLDW). The photoreduced graphene oxide patterns function
as the conductive electrodes, whereas the pristine graphene oxide
thin film serves as the sensing layer. The as-fabricated e-skins exhibit
high sensitivity, fast response–recovery behavior, good long-term
stability, and excellent mechanical robustness. In-depth analysis
reveals that the sensing mechanism is attributed to proton and ionic
conductivity in the low and high humidity conditions, respectively.
By taking the merits of the FsLDW, a 4 Ă— 4 sensing matrix is
facilely integrated in a single-step, eco-friendly, and green process.
The light-weight and in-plane matrix shows high-spatial-resolution
sensing capabilities over a long detection range in a noncontact mode.
This study will open up an avenue to innovations in the noncontact
e-skins and hold a promise for applications in wearable human–machine
interfaces, robotics, and bioelectronics
All-Graphene-Based Highly Flexible Noncontact Electronic Skin
Noncontact
electronic skin (e-skin), which possesses superior long-range and
high-spatial-resolution sensory properties, is becoming indispensable
in fulfilling the emulation of human sensation via prosthetics. Here,
we present an advanced design and fabrication of all-graphene-based
highly flexible noncontact e-skins by virtue of femtosecond laser
direct writing (FsLDW). The photoreduced graphene oxide patterns function
as the conductive electrodes, whereas the pristine graphene oxide
thin film serves as the sensing layer. The as-fabricated e-skins exhibit
high sensitivity, fast response–recovery behavior, good long-term
stability, and excellent mechanical robustness. In-depth analysis
reveals that the sensing mechanism is attributed to proton and ionic
conductivity in the low and high humidity conditions, respectively.
By taking the merits of the FsLDW, a 4 Ă— 4 sensing matrix is
facilely integrated in a single-step, eco-friendly, and green process.
The light-weight and in-plane matrix shows high-spatial-resolution
sensing capabilities over a long detection range in a noncontact mode.
This study will open up an avenue to innovations in the noncontact
e-skins and hold a promise for applications in wearable human–machine
interfaces, robotics, and bioelectronics