Advances in Piezoelectret Materials‐Based Bidirectional Haptic Communication Devices
Advanced Materials,
Год журнала:
2024,
Номер
36(33)
Опубликована: Июнь 19, 2024
Abstract
Bidirectional
haptic
communication
devices
accelerate
the
revolution
of
virtual/augmented
reality
and
flexible/wearable
electronics.
As
an
emerging
kind
flexible
piezoelectric
materials,
piezoelectret
materials
can
effortlessly
convert
mechanical
force
into
electrical
signals
respond
to
fields
in
a
deformation
manner,
exhibiting
enormous
potential
construction
bidirectional
devices.
Existing
reviews
on
primarily
focus
energy
harvesters
sensors,
recent
development
piezoelectret‐based
has
not
been
comprehensively
reviewed.
Herein,
comprehensive
overview
construction,
along
with
advances
devices,
is
provided.
First,
timeline,
key
characteristics,
various
fabrication
methods
are
introduced.
Subsequently,
following
underlying
mechanisms
electromechanical
signal
conversion
piezoelectret,
strategies
improve
d
33
coefficients
proposed.
The
principles
perception
feedback
also
highlighted,
representative
works
progress
this
area
summarized.
Finally,
challenges
opportunities
associated
improving
overall
practicability
materials‐based
discussed.
Язык: Английский
Mechanochromic 3D Soft Photonic Crystals Enabled Anticounterfeiting and Encryption Information Storage
Advanced Optical Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 9, 2024
Abstract
Inspired
by
the
color‐changing
abilities
of
natural
organisms,
this
research
focuses
on
design
and
fabrication
mechanochromic
liquid
crystal
photonic
thin
films
with
periodic
self‐assembly
structures.
Benefiting
from
its
unique
3D
self‐assembled
structure
a
body‐centered
cubic
lattice,
BP
I
film
exhibits
excellent
mechanical
properties,
characterized
superior
elasticity
toughness
due
to
presence
rigid
flexible
microdomains
suitable
dislocation
line
volumes.
As
strain
increases,
structural
color
demonstrates
repeatable
rapid
shift
red
blue,
covering
entire
visible
light
spectrum
high
reflectivity.
The
incorporation
fluorescent
molecules
further
enhances
properties
endowing
circularly
polarized
luminescence
under
UV
irradiation.
Utilizing
different
dyes
as
inks,
arbitrary
patterned
writing
can
be
performed
BPI
film,
enabling
specific
information
hiding
encryption.
prepared
label
environmental
stability,
presenting
promising
applications
in
storage,
anti‐counterfeiting,
displays.
study
may
contribute
deeper
understanding
relationship
between
microstructure,
deformation,
optical
potentially
advancing
development
innovative
responsive
materials
multifunctional
devices.
Язык: Английский
Optical Anti-Counterfeiting with Cholesteric Liquid Crystal Emulsions: Preparation, Properties, and Applications
Materials Advances,
Год журнала:
2024,
Номер
5(18), С. 7113 - 7129
Опубликована: Янв. 1, 2024
This
review
highlights
recent
advancements
in
cholesteric
liquid
crystal
emulsions,
focusing
on
their
preparation,
anti-counterfeiting
applications,
and
future
prospects.
It
also
covers
role
information
storage
encryption
techniques.
Язык: Английский
Effective Plastic Properties of Porous Materials with an Inverse Opal Structure
Powder Metallurgy and Metal Ceramics,
Год журнала:
2024,
Номер
62(9-10), С. 572 - 579
Опубликована: Янв. 1, 2024
Язык: Английский
Antiswelling Photochromic Hydrogels for Underwater Optically Camouflageable Flexible Electronic Devices
ACS Applied Materials & Interfaces,
Год журнала:
2024,
Номер
16(35), С. 46810 - 46821
Опубликована: Авг. 23, 2024
Optical
camouflage
offers
an
effective
strategy
for
enhancing
the
survival
chances
of
underwater
flexible
electronic
devices
akin
to
organisms.
Photochromism
is
one
most
methods
achieve
optical
camouflage.
In
this
study,
antiswelling
hydrogels
with
photochromic
properties
were
prepared
using
a
two-step
solvent
replacement
and
explored
as
optically
camouflaged
devices.
The
hydrophobic
network
formed
upon
polymerization
hydroxyethyl
methacrylate
(HEMA)
ensured
that
possessed
outstanding
properties.
Internetwork
hydrogen
bonding
interactions
allowed
exhibit
tissue-adaptable
mechanical
excellent
self-bonding
capabilities.
introduction
polyoxometalates
further
enhanced
hydrogels'
while
imparting
capability.
could
be
rapidly
reversibly
colored
under
365
nm
UV
irradiation.
bleaching
rate
increased
temperature,
within
12
h
at
60
°C
but
maintaining
color
more
than
5
days
room
temperature.
enabled
easily
assembled
into
motion
sensing
wireless
information
transmission.
An
strain
sensor
was
first
limb
sensing.
Additionally,
exchange
device
enable
communication
smartphone.
This
work
provided
devices,
presenting
opportunities
next-generation
hydrogel-based
Язык: Английский