Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(37)
Published: April 8, 2024
Abstract
Triboelectric
nanogenerators
(TENG)
not
only
enable
sustainable
self‐powered
sensing
of
devices,
but
also
have
superhuman
noncontact/contact
identification
capabilities,
which
are
propelling
humanity
toward
the
intelligent
era.
However,
inherently
low
dielectric
constant
triboelectric
materials
as
well
mechanical
mismatch
between
electrodes
and
severely
limited
their
efficient
stable
output
performance.
Taking
inspiration
from
asymmetric
structure
function
human
skin,
a
novel
single‐electrode
TENG
is
developed,
whose
electrode
layer
integrated
in
Janus
architecture.
By
tuning
balance
gravity
internal
noncovalent
interactions,
gradient
dispersion
carbon
nanotubes
waterborne
polyurethane
networks
can
be
feasibly
achieved,
boost
device
performance
by
reinforcement
both
charge
trapping
capacity
transfer
layer.
As
proof‐of‐concept,
deep
learning
to
realize
evolution
perception
under
noncontact
(motion
prediction)
contact
(material
identification)
modes.
The
bionic
design
strategy
film
offer
valuable
insights
into
improving
durability
TENG.
Additionally,
proximal
prediction
tactile
functions
desirable
attempts
for
future
human‐machine
interfaces.
Nano-Micro Letters,
Journal Year:
2023,
Volume and Issue:
15(1)
Published: May 11, 2023
With
the
rapid
development
of
Internet
Things
and
flexible
electronic
technologies,
there
is
a
growing
demand
for
wireless,
sustainable,
multifunctional,
independently
operating
self-powered
wearable
devices.
Nevertheless,
structural
flexibility,
long
time,
wearing
comfort
have
become
key
requirements
widespread
adoption
electronics.
Triboelectric
nanogenerators
as
distributed
energy
harvesting
technology
great
potential
application
in
sensing.
Compared
with
rigid
electronics,
cellulosic
electronics
significant
advantages
terms
breathability,
functionality.
In
this
paper,
research
progress
advanced
triboelectric
materials
reviewed.
The
interfacial
characteristics
cellulose
are
introduced
from
top-down,
bottom-up,
composite
material
preparation
process.
Meanwhile,
modulation
strategies
properties
presented.
Furthermore,
design
such
surface
functionalization,
structure
design,
vacuum-assisted
self-assembly
systematically
discussed.
particular,
fields
human
harvesting,
tactile
sensing,
health
monitoring,
human-machine
interaction,
intelligent
fire
warning
outlined
detail.
Finally,
current
challenges
future
directions
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(52)
Published: March 22, 2024
Abstract
Triboelectric
nanogenerator
(TENG)
manifests
distinct
advantages
such
as
multiple
structural
selectivity,
diverse
selection
of
materials,
environmental
adaptability,
low
cost,
and
remarkable
conversion
efficiency,
which
becomes
a
promising
technology
for
micro‐nano
energy
harvesting
self‐powered
sensing.
Tribo‐dielectric
materials
are
the
fundamental
core
components
high‐performance
TENGs.
In
particular,
charge
generation,
dissipation,
storage,
migration
dielectrics,
dynamic
equilibrium
behaviors
determine
overall
performance.
Herein,
comprehensive
summary
is
presented
to
elucidate
dielectric
transport
mechanism
tribo‐dielectric
material
modification
principle
toward
The
contact
electrification
started
first,
followed
by
introducing
basic
Subsequently,
mechanisms
strategies
highlighted
regarding
physical/chemical,
surface/bulk,
coupling,
structure
optimization.
Furthermore,
representative
applications
based
TENGs
power
sources,
sensors
demonstrated.
existing
challenges
potential
opportunities
advanced
outlined,
guiding
design,
fabrication,
materials.
Advanced Functional Materials,
Journal Year:
2023,
Volume and Issue:
33(52)
Published: Sept. 13, 2023
Abstract
A
self‐powered
and
sustainable
traffic
monitoring
system
is
highly
required
for
future
urban
development.
Herein,
self‐healable
piezoresistive
sensors
triboelectric
nanogenerators
(TENGs)
are
constructed
by
in
situ
polymerization
of
polyvinyl
alcohol‐polyacrylamide
double
network
hydrogel
the
presence
sodium
alginate
tannic
acid‐modified
cellulose
nanocrystals
(denoted
as
PPC)
all‐weather
intelligent
applications.
Because
hydrogen
bonding
boron
ester
bonding,
resultant
PPC‐based
strain
sensor
can
rapidly
self‐heal
restore
its
sensing
ability
within
1
min
with
a
self‐healing
efficiency
97.4%.
Based
on
effect,
ions
endow
relatively
high
gauge
factor
8.39,
which
monitor
motion
fatigue
drivers.
triboelectrification
TENG
detect
instantaneous
vehicle
speed,
judge
accident
liability,
evaluate
weight,
alert
driver
to
prevent
accidents
caused
drowsy
driving.
After
partially
replacing
water
PPC
glycerin,
resulting
exhibits
stable
performance
at
temperatures
ranging
from
‐30
40
°C,
ensuring
ability.
The
promising
security
cities.
ACS Nano,
Journal Year:
2024,
Volume and Issue:
18(5), P. 4467 - 4477
Published: Jan. 24, 2024
The
energy
conversion
efficiency
of
a
triboelectric
nanogenerator
(TENG)
is
severely
limited
by
the
charge
density
materials,
while
drastic
and
unavoidable
decay
happens
during
contact
due
to
insufficient
retention
capacity
positive
materials.
Here,
elaborately
synthesized
acid-ion-doped
pyridine-based
polybenzimidazole
processing
with
strong
capability
demonstrated
couple
negatively
corona-polarized
electrets.
As
illustrated
thermal
stimulation
an
ion
mass
spectrometer,
formation
acid-ion
chimerism
processes
high
activation
for
stored
charges,
selective
anion
migration
can
compensate
escape
polarized
charge.
Accordingly,
reach
up
596
μC
m–2
rate
reaches
49.7%,
which
so
far
highest
intrinsic
obtained
in
open
air.
Thus,
ionic
strategy
provides
effective
way
suppress
escaping
air
gives
great
expandable
avenue
material
challenges
TENG's
practical
deployment.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(26)
Published: March 28, 2024
Abstract
Over
the
past
few
decades,
significant
progress
in
piezo‐/triboelectric
nanogenerators
(PTEGs)
has
led
to
development
of
cutting‐edge
wearable
technologies.
Nanofibers
with
good
designability,
controllable
morphologies,
large
specific
areas,
and
unique
physicochemical
properties
provide
a
promising
platform
for
PTEGs
various
advanced
applications.
However,
further
nanofiber‐based
is
limited
by
technical
difficulties,
ranging
from
materials
design
device
integration.
Herein,
current
developments
based
on
electrospun
nanofibers
are
systematically
reviewed.
This
review
begins
mechanisms
advantages
nanodevices,
including
high
breathability,
waterproofness,
scalability,
thermal–moisture
comfort.
In
terms
structural
design,
novel
electroactive
structure
assemblies
1D
micro/nanostructures,
2D
bionic
structures,
3D
multilayered
structures
discussed.
Subsequently,
nanofibrous
applications
such
as
energy
harvesters,
personalized
medicine,
personal
protective
equipment,
human–machine
interactions
summarized.
Nanofiber‐based
still
face
many
challenges
efficiency,
material
durability,
stability,
Finally,
research
gap
between
practical
discussed,
emerging
trends
proposed,
providing
some
ideas
intelligent
wearables.
ACS Applied Electronic Materials,
Journal Year:
2024,
Volume and Issue:
6(2), P. 1385 - 1395
Published: Feb. 13, 2024
Flexible
and
wearable
sensors
have
a
crucial
impact
on
the
development
of
intelligent
information
technology.
However,
current
commercial
cannot
meet
relevant
performance
requirements.
Herein,
based
electrospinning
process,
extra
polarization,
triboelectric
nanogenerator
technologies,
we
propose
high-performance
flexible
sensor
(HFWS)
with
self-powered
breathable
function,
which
is
constructed
by
polarized
polyvinylidene
fluoride-barium
titanate
(PVDF-BTO)
electrospun
film
Ni
fabric
electrode.
After
optimization
β-phase
content
in
PVDF
BTO
nanoparticles,
an
high-voltage
polarization
operation
continually
used
to
improve
further
enhance
performance.
Benefiting
from
excellent
performance,
HFWS
exhibits
several
times
higher
signal-to-noise
ratio
(37.01
dB),
sensitivity
(2.62
±
0.11
V/kPa),
power
density
(4.62
W/m2)
compared
previous
similar
studies.
In
addition,
for
stable
molecular
phase
structure
PVDF-BTO
film,
has
various
good
durability
stability
machinery,
washing,
environment,
other
aspects.
Our
finding
potential
value
field
devices,
smart
healthcare,
life.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: July 21, 2024
Abstract
Self‐healing
materials
that
integrate
excellent
mechanical
properties
and
high
healing
efficiency
meet
the
requirements
of
flexible
electronic
sensors
for
flexibility
reliability.
In
field
wearable
devices,
they
are
great
significance
improving
stability
equipment
reducing
frequency
replacement.
However,
strength
often
limits
their
self‐healing
ability.
When
damage
occurs,
it
will
hinder
microstructural
adjustment
fluidity
material
at
damaged
site,
thus
negatively
affecting
activation
execution
mechanism.
this
study,
a
strength‐toughness
room‐temperature
triboelectric
is
prepared
by
dynamic
nanoconfinement
effect
quenching
ethanol
(referred
to
as
DNCQ
strategy).
The
improves
aggregation
nanocluster
phase,
constructed
nanoconfined
network
skillfully
balances
contradiction
between
obtained
has
tensile
(27.1
MPa),
toughness
(97.9
MJ
m
−3
),
(88.6%).
self‐powered
pressure
distribution
sensing
array
based
on
can
accurately
reflect
object,
which
potential
application
prospects
in
devices.
Advanced Science,
Journal Year:
2024,
Volume and Issue:
11(30)
Published: June 13, 2024
Abstract
With
the
onset
of
5G
era,
wearable
flexible
electronic
devices
have
developed
rapidly
and
gradually
entered
daily
life
people.
However,
vast
majority
research
focuses
on
integration
functions
performance
improvement,
while
ignoring
electromagnetic
hazards
caused
by
devices.
Herein,
3D
double
conductive
networks
are
constructed
through
a
repetitive
vacuum‐assisted
dip‐coating
technique
to
decorate
2D
MXene
1D
silver
nanowires
melamine
foam.
Benefiting
from
unique
porous
structure
multi‐scale
interconnected
frame,
resultant
composite
foam
exhibited
high
electrical
conductivity,
low
density,
superb
interference
shielding
(48.32
dB),
Joule
heating
(up
90.8
°C
under
0.8
V).
Furthermore,
single‐electrode
triboelectric
nanogenerator
(TENG)
with
powerful
energy
harvesting
capability
is
assembled
combining
an
ultra‐thin
Ecoflex
film
polyvinylidene
fluoride
film.
Simultaneously,
foam‐based
TENG
can
also
be
considered
reliable
sensor
for
monitoring
activity
patterns
in
different
parts
human
body.
The
versatility
scalable
manufacturing
high‐performance
foams
will
provide
new
design
ideas
development
next‐generation
