Advanced Materials,
Journal Year:
2019,
Volume and Issue:
31(28)
Published: May 20, 2019
Considerable
progress
in
materials
development
and
device
integration
for
mechanically
bendable
stretchable
optoelectronics
will
broaden
the
application
of
"Internet-of-Things"
concepts
to
a
myriad
new
applications.
When
addressing
needs
associated
with
human
body,
such
as
detection
mechanical
functions,
monitoring
health
parameters,
tissues,
optoelectronic
devices,
interconnects/circuits
enabling
their
core
passive
components
from
which
whole
system
is
built
must
sustain
different
degrees
stresses.
Herein,
basic
characteristics
performance
several
these
devices
are
reported,
particularly
focusing
on
conducting
element
constituting
them.
Among
strain
sensors
types,
energy
storage
elements,
power/energy
generators
included.
Specifically,
advances
during
past
3
years
wherein
flexible
elements
fabricated
(0D,
1D,
2D)
nanomaterials
metals
(e.g.,
Au
nanoparticles,
Ag
flakes,
Cu
nanowires),
carbon
nanotubes/nanofibers,
2D
conductors
graphene,
MoS2
),
metal
oxides
Zn
nanorods),
polymers
poly(3,4-ethylenedioxythiophene):poly(4-styrene
sulfonate),
polyaniline)
combination
fibrotic
elastomeric
enabling,
after
integration,
so-called
electronic
skins
textiles.
ACS Applied Materials & Interfaces,
Journal Year:
2019,
Volume and Issue:
11(21), P. 19472 - 19480
Published: May 6, 2019
An
ultrahigh
sensitive
capacitive
pressure
sensor
based
on
a
porous
pyramid
dielectric
layer
(PPDL)
is
reported.
Compared
to
that
of
the
conventional
layer,
sensitivity
was
drastically
increased
44.5
kPa-1
in
range
<100
Pa,
an
unprecedented
for
sensors.
The
enhanced
attributed
lower
compressive
modulus
and
larger
change
effective
constant
under
pressure.
By
placing
sensors
islands
hard
elastomer
embedded
soft
substrate,
exhibited
insensitivity
strain.
were
also
nonresponsive
temperature.
Finally,
contact
resistance-based
demonstrated
by
chemically
grafting
PPDL
with
conductive
polymer,
which
showed
sensitivity.
Advanced Functional Materials,
Journal Year:
2017,
Volume and Issue:
28(7)
Published: Dec. 15, 2017
Abstract
Mimicking
human
skin's
functions
to
develop
electronic
skins
has
inspired
tremendous
efforts
in
design
and
synthesis
of
novel
soft
materials
with
simplified
fabrication
methods.
However,
it
still
remains
a
great
challenge
electronically
conductive
that
are
both
stretchable
self‐healable.
Here
is
demonstrated
ternary
polymer
composite
comprised
polyaniline,
polyacrylic
acid,
phytic
acid
can
exhibit
high
stretchability
(
≈
500%)
excellent
self‐healing
properties.
The
optimized
composition
shows
an
electrical
conductivity
0.12
S
cm
−1
.
On
rupture,
mechanical
properties
be
restored
99%
efficiency
24
h
period,
which
enabled
by
the
dynamic
hydrogen
bonding
electrostatic
interactions.
It
further
shown
this
strain
pressure
sensitive,
therefore
used
for
fabricating
sensors
detect
variety
deformations
ultrahigh
sensitivity.
sensitivity
sensing
range
highest
among
all
reported
self‐healable
piezoresistive
even
surpass
most
flexible
sensors.
Notably,
prepared
via
solution
casting
process,
potentially
allows
large‐area,
low‐cost
skins.
Advanced Materials,
Journal Year:
2021,
Volume and Issue:
33(47)
Published: April 22, 2021
Abstract
Flexible
tactile
sensors
capable
of
measuring
mechanical
stimuli
via
physical
contact
have
attracted
significant
attention
in
the
field
human‐interactive
systems.
The
utilization
information
can
complement
vision
and/or
sound
interaction
and
provide
new
functionalities.
Recent
advancements
micro/nanotechnology,
material
science,
technology
resulted
development
high‐performance
that
reach
even
surpass
sensing
ability
human
skin.
Here,
important
advances
flexible
over
recent
years
are
summarized,
from
sensor
designs
to
system‐level
applications.
This
review
focuses
on
representative
strategies
based
design
configurations
for
improving
key
performance
parameters
including
sensitivity,
detection
range/linearity,
response
time/hysteresis,
spatial
resolution/crosstalk,
multidirectional
force
detection,
insensitivity
other
stimuli.
System‐level
integration
practical
applications
beyond
conceptual
prototypes
promising
applications,
such
as
artificial
electronic
skin
robotics
prosthetics,
wearable
controllers
electronics,
bidirectional
communication
tools,
also
discussed.
Finally,
perspectives
issues
regarding
further
provided.
Advanced Materials,
Journal Year:
2019,
Volume and Issue:
31(28)
Published: May 20, 2019
Considerable
progress
in
materials
development
and
device
integration
for
mechanically
bendable
stretchable
optoelectronics
will
broaden
the
application
of
"Internet-of-Things"
concepts
to
a
myriad
new
applications.
When
addressing
needs
associated
with
human
body,
such
as
detection
mechanical
functions,
monitoring
health
parameters,
tissues,
optoelectronic
devices,
interconnects/circuits
enabling
their
core
passive
components
from
which
whole
system
is
built
must
sustain
different
degrees
stresses.
Herein,
basic
characteristics
performance
several
these
devices
are
reported,
particularly
focusing
on
conducting
element
constituting
them.
Among
strain
sensors
types,
energy
storage
elements,
power/energy
generators
included.
Specifically,
advances
during
past
3
years
wherein
flexible
elements
fabricated
(0D,
1D,
2D)
nanomaterials
metals
(e.g.,
Au
nanoparticles,
Ag
flakes,
Cu
nanowires),
carbon
nanotubes/nanofibers,
2D
conductors
graphene,
MoS2
),
metal
oxides
Zn
nanorods),
polymers
poly(3,4-ethylenedioxythiophene):poly(4-styrene
sulfonate),
polyaniline)
combination
fibrotic
elastomeric
enabling,
after
integration,
so-called
electronic
skins
textiles.
