12 research outputs found
Screen-Printed Washable Electronic Textiles as Self-Powered Touch/Gesture Tribo-Sensors for Intelligent Human–Machine Interaction
Multifunctional
electronic textiles (E-textiles) with embedded
electric circuits hold great application prospects for future wearable
electronics. However, most E-textiles still have critical challenges,
including air permeability, satisfactory washability, and mass fabrication.
In this work, we fabricate a washable E-textile that addresses all
of the concerns and shows its application as a self-powered triboelectric
gesture textile for intelligent human–machine interfacing.
Utilizing conductive carbon nanotubes (CNTs) and screen-printing technology,
this kind of E-textile embraces high conductivity (0.2 kΩ/sq),
high air permeability (88.2 mm/s), and can be manufactured on common
fabric at large scales. Due to the advantage of the interaction between
the CNTs and the fabrics, the electrode shows excellent stability
under harsh mechanical deformation and even after being washed. Moreover,
based on a single-electrode mode triboelectric nanogenerator and electrode
pattern design, our E-textile exhibits highly sensitive touch/gesture
sensing performance and has potential applications for human–machine
interfacing
Screen-Printed Washable Electronic Textiles as Self-Powered Touch/Gesture Tribo-Sensors for Intelligent Human–Machine Interaction
Multifunctional
electronic textiles (E-textiles) with embedded
electric circuits hold great application prospects for future wearable
electronics. However, most E-textiles still have critical challenges,
including air permeability, satisfactory washability, and mass fabrication.
In this work, we fabricate a washable E-textile that addresses all
of the concerns and shows its application as a self-powered triboelectric
gesture textile for intelligent human–machine interfacing.
Utilizing conductive carbon nanotubes (CNTs) and screen-printing technology,
this kind of E-textile embraces high conductivity (0.2 kΩ/sq),
high air permeability (88.2 mm/s), and can be manufactured on common
fabric at large scales. Due to the advantage of the interaction between
the CNTs and the fabrics, the electrode shows excellent stability
under harsh mechanical deformation and even after being washed. Moreover,
based on a single-electrode mode triboelectric nanogenerator and electrode
pattern design, our E-textile exhibits highly sensitive touch/gesture
sensing performance and has potential applications for human–machine
interfacing
Screen-Printed Washable Electronic Textiles as Self-Powered Touch/Gesture Tribo-Sensors for Intelligent Human–Machine Interaction
Multifunctional
electronic textiles (E-textiles) with embedded
electric circuits hold great application prospects for future wearable
electronics. However, most E-textiles still have critical challenges,
including air permeability, satisfactory washability, and mass fabrication.
In this work, we fabricate a washable E-textile that addresses all
of the concerns and shows its application as a self-powered triboelectric
gesture textile for intelligent human–machine interfacing.
Utilizing conductive carbon nanotubes (CNTs) and screen-printing technology,
this kind of E-textile embraces high conductivity (0.2 kΩ/sq),
high air permeability (88.2 mm/s), and can be manufactured on common
fabric at large scales. Due to the advantage of the interaction between
the CNTs and the fabrics, the electrode shows excellent stability
under harsh mechanical deformation and even after being washed. Moreover,
based on a single-electrode mode triboelectric nanogenerator and electrode
pattern design, our E-textile exhibits highly sensitive touch/gesture
sensing performance and has potential applications for human–machine
interfacing
All-Nanofiber-Based Ultralight Stretchable Triboelectric Nanogenerator for Self-Powered Wearable Electronics
The
flexible and stretchable electronics have been considered as next-generation
electronics. Stretchable triboelectric nanogenerators (S-TENGs) with
both multifunction and comfort have become a hot field of research
for wearable electronic devices recently. Here, we designed an all-nanofiber-based,
ultralight, S-TENG that could be softly attached on skins for motion
energy harvesting and self-powered biomechanical monitoring. The S-TENG
consisted of only two nanofiber membranes: a polyvinylidene fluoride
nanofiber membrane (PVDFNM) supported by thermoplastic polyurethane
nanofiber membrane (TPUNM) was used as the frictional layer, and a
multiwalled carbon nanotube (MWCNT) conductive material screen-printed
on the TPUNM was used as the electrode layer. Due to the excellent
stretchability of TPUNM, the S-TENG could generate electricity under
various types of deformation, and regains its original performance
after intense mechanical extension, even if it is partially cut or
damaged. Owing to the great electronegativity of PVDFNM, the device
generated a maximum voltage of 225 V and a current of 4.5 μA
with an electrode area of 6 Ă— 1 cm<sup>2</sup>. The S-TENG has
great potential applications in self-powered wearable devices, electronic
skins, and smart sensor networks
Screen-Printed Washable Electronic Textiles as Self-Powered Touch/Gesture Tribo-Sensors for Intelligent Human–Machine Interaction
Multifunctional
electronic textiles (E-textiles) with embedded
electric circuits hold great application prospects for future wearable
electronics. However, most E-textiles still have critical challenges,
including air permeability, satisfactory washability, and mass fabrication.
In this work, we fabricate a washable E-textile that addresses all
of the concerns and shows its application as a self-powered triboelectric
gesture textile for intelligent human–machine interfacing.
Utilizing conductive carbon nanotubes (CNTs) and screen-printing technology,
this kind of E-textile embraces high conductivity (0.2 kΩ/sq),
high air permeability (88.2 mm/s), and can be manufactured on common
fabric at large scales. Due to the advantage of the interaction between
the CNTs and the fabrics, the electrode shows excellent stability
under harsh mechanical deformation and even after being washed. Moreover,
based on a single-electrode mode triboelectric nanogenerator and electrode
pattern design, our E-textile exhibits highly sensitive touch/gesture
sensing performance and has potential applications for human–machine
interfacing
Screen-Printed Washable Electronic Textiles as Self-Powered Touch/Gesture Tribo-Sensors for Intelligent Human–Machine Interaction
Multifunctional
electronic textiles (E-textiles) with embedded
electric circuits hold great application prospects for future wearable
electronics. However, most E-textiles still have critical challenges,
including air permeability, satisfactory washability, and mass fabrication.
In this work, we fabricate a washable E-textile that addresses all
of the concerns and shows its application as a self-powered triboelectric
gesture textile for intelligent human–machine interfacing.
Utilizing conductive carbon nanotubes (CNTs) and screen-printing technology,
this kind of E-textile embraces high conductivity (0.2 kΩ/sq),
high air permeability (88.2 mm/s), and can be manufactured on common
fabric at large scales. Due to the advantage of the interaction between
the CNTs and the fabrics, the electrode shows excellent stability
under harsh mechanical deformation and even after being washed. Moreover,
based on a single-electrode mode triboelectric nanogenerator and electrode
pattern design, our E-textile exhibits highly sensitive touch/gesture
sensing performance and has potential applications for human–machine
interfacing
All-Nanofiber-Based Ultralight Stretchable Triboelectric Nanogenerator for Self-Powered Wearable Electronics
The
flexible and stretchable electronics have been considered as next-generation
electronics. Stretchable triboelectric nanogenerators (S-TENGs) with
both multifunction and comfort have become a hot field of research
for wearable electronic devices recently. Here, we designed an all-nanofiber-based,
ultralight, S-TENG that could be softly attached on skins for motion
energy harvesting and self-powered biomechanical monitoring. The S-TENG
consisted of only two nanofiber membranes: a polyvinylidene fluoride
nanofiber membrane (PVDFNM) supported by thermoplastic polyurethane
nanofiber membrane (TPUNM) was used as the frictional layer, and a
multiwalled carbon nanotube (MWCNT) conductive material screen-printed
on the TPUNM was used as the electrode layer. Due to the excellent
stretchability of TPUNM, the S-TENG could generate electricity under
various types of deformation, and regains its original performance
after intense mechanical extension, even if it is partially cut or
damaged. Owing to the great electronegativity of PVDFNM, the device
generated a maximum voltage of 225 V and a current of 4.5 μA
with an electrode area of 6 Ă— 1 cm<sup>2</sup>. The S-TENG has
great potential applications in self-powered wearable devices, electronic
skins, and smart sensor networks
All-Nanofiber-Based Ultralight Stretchable Triboelectric Nanogenerator for Self-Powered Wearable Electronics
The
flexible and stretchable electronics have been considered as next-generation
electronics. Stretchable triboelectric nanogenerators (S-TENGs) with
both multifunction and comfort have become a hot field of research
for wearable electronic devices recently. Here, we designed an all-nanofiber-based,
ultralight, S-TENG that could be softly attached on skins for motion
energy harvesting and self-powered biomechanical monitoring. The S-TENG
consisted of only two nanofiber membranes: a polyvinylidene fluoride
nanofiber membrane (PVDFNM) supported by thermoplastic polyurethane
nanofiber membrane (TPUNM) was used as the frictional layer, and a
multiwalled carbon nanotube (MWCNT) conductive material screen-printed
on the TPUNM was used as the electrode layer. Due to the excellent
stretchability of TPUNM, the S-TENG could generate electricity under
various types of deformation, and regains its original performance
after intense mechanical extension, even if it is partially cut or
damaged. Owing to the great electronegativity of PVDFNM, the device
generated a maximum voltage of 225 V and a current of 4.5 μA
with an electrode area of 6 Ă— 1 cm<sup>2</sup>. The S-TENG has
great potential applications in self-powered wearable devices, electronic
skins, and smart sensor networks
Improved Triboelectric Nanogenerator Output Performance through Polymer Nanocomposites Filled with Core–shell-Structured Particles
Core–shell-structured
BaTiO<sub>3</sub>–polyÂ(<i>tert</i>-butyl acrylate)
(P<i>t</i>BA) nanoparticles
are successfully prepared by in situ atom transfer radical polymerization
of <i>tert</i>-butyl acrylate (<i>t</i>BA) on
BaTiO<sub>3</sub> nanoparticle surface. The thickness of the P<i>t</i>BA shell layer could be controlled by adjusting the feed
ratio of <i>t</i>BA to BaTiO<sub>3</sub>. The BaTiO<sub>3</sub>–P<i>t</i>BA nanoparticles are introduced
into polyÂ(vinylidene fluoride) (PVDF) matrix to form a BaTiO<sub>3</sub>–P<i>t</i>BA/PVDF nanocomposite. The nanocomposites
keep the flexibility of the PVDF matrix with enhanced dielectric constant
(∼15@100 Hz) because of the high permittivity of inorganic
particles and the ester functional groups in the P<i>t</i>BA. Furthermore, the BaTiO<sub>3</sub>–P<i>t</i>BA/PVDF nanocomposites demonstrate the inherent small dielectric
loss of the PVDF matrix in the tested frequency range. The high electric
field dielectric constant of the nanocomposite film was investigated
by polarization hysteresis loops. The high electric field effective
dielectric constant of the nanocomposite is 26.5 at 150 MV/m. The
output current density of the nanocomposite-based triboelectric nanogenerator
(TENG) is 2.1 μA/cm<sup>2</sup>, which is above 2.5 times higher
than the corresponding pure PVDF-based TENG
Self-Powered Electrospinning System Driven by a Triboelectric Nanogenerator
Broadening
the application area of the triboelectric nanogenerators
(TENGs) is one of the research emphases in the study of the TENGs,
whose output characteristic is high voltage with low current. Here
we design a self-powered electrospinning system, which is composed
of a rotating-disk TENG (R-TENG), a voltage-doubling rectifying circuit
(VDRC), and a simple spinneret. The R-TENG can generate an alternating
voltage up to 1400 V. By using a voltage-doubling rectifying circuit,
a maximum constant direct voltage of 8.0 kV can be obtained under
the optimal configuration and is able to power the electrospinning
system for fabricating various polymer nanofibers, such as polyethylene
terephthalate (PET), polyamide-6 (PA6), polyacrylonitrile (PAN), polyvinylidene
difluoride (PVDF), and thermoplastic polyurethanes (TPU). The system
demonstrates the capability of a TENG for high-voltage applications,
such as manufacturing nanofibers by electrospinning