Journal of Applied Physics,
Journal Year:
2024,
Volume and Issue:
136(19)
Published: Nov. 20, 2024
Various
biomimetic
microstructures,
such
as
porous,
cracks,
wrinkles,
micro-pyramids,
and
micro-domes,
are
applied
to
improve
the
sensing
performance
of
mechanical
sensors.
Among
them,
crack-based
strain
sensors
widely
investigated
due
high
sensitivity
fast
response
time.
To
clearly
describe
relationship
between
crack
morphology
sensor
sensitivity,
a
mathematical
model
is
developed
for
investigating
poly(3,4-ethylenedioxythiophene)-silicon
oxide/polydimethylsiloxane
(SiOx/PDMS)
based
sensor.
First,
displacement
field
tip
calculated
on
theory
fracture
mechanics,
depth,
gap,
obtained.
The
predicted
depth
SiOx
thin
film's
thicknesses
in
7.91
μm
(SiOx/PDMS-7.91)
2.82
μm,
with
error
3.75%
compared
experimental
result.
Correspondingly,
deviation
SiOx/PDMS-7.91
5.74%
gap
data.
Second,
above
aforementioned
characteristics,
edges
contacts
probability
(CECP)
used
construct
stress,
device
sensitivity.
maximum
can
reach
3562.68
data
3800.44,
about
6.26%.
Moreover,
CECP
has
good
universality
other
reported
It
be
concluded
that
affects
distribution
quantity
conductive
paths.
When
subjected
external
forces,
brittle
films
generate
certain
number
bumped-like
elements
microcracks.
wider
deeper
will
increase
relative
resistance
change
decrease
paths,
resulting
rapid
ACS Sensors,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 2, 2025
Flexible
pressure
sensors
have
shown
significant
application
prospects
in
fields
such
as
artificial
intelligence
and
precision
manufacturing.
However,
most
flexible
are
often
prepared
using
polymer
materials
precise
micronano
processing
techniques,
which
greatly
limits
the
widespread
of
sensors.
Here,
this
work
chooses
textile
material
construction
for
sensor,
its
latitude
longitude
structure
endows
sensor
with
a
natural
structure.
The
was
designed
multilayer
stacking
strategy
by
combining
two-dimensional
MXene
materials.
experiment
shows
that
sensitivity
is
52.08
kPa
