Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 12, 2025
Abstract
Blue
phase
liquid
crystal
(BPLC)
dynamic
patterns
have
attracted
wide
attention
for
promising
applications
in
optical
information
manipulation
and
visualization
sensing,
owing
to
unique
3D
chiral
helix
superstructure
adjustable
bright/abundant
colors
response
extra
fields.
Inkjet
printing
has
become
an
efficient
approach
achieving
programmable
BPLC
patterns.
However,
it
remains
a
challenge
achieve
independent
“on/off”
control
of
regional
using
the
same
ink
due
unrevealed
temperature‐time‐dependent
color
change
behavior
determined
by
different
inks.
Herein,
comprehensive
understanding
reflective
bandgap
shift
law
versus
temperature/time
is
established
investigating
diffusion
kinetics
multiple
inks
(5CB,
6CB,
8CB)
hydrophobically
modified
blue‐phase
polymer
templates.
The
three
induce
redshift
followed
blueshift
color/reflectance
wavelengths,
but
triggering
times
differ
significantly
at
temperature,
which
attributed
inks'
transition
characteristics,
fluid
properties,
interaction
with
network.
Dynamic
multi‐color
selective
region
are
successfully
fabricated
based
on
time‐temperature
controlled
multi‐ink
technique
displaying
time‐series
multi‐level
encryption
(including
“growing
apple
tree”
“nested
QR
codes”).
This
study
provides
important
insights
into
design
fabrication
advanced
devices
Advanced Materials,
Год журнала:
2023,
Номер
35(25)
Опубликована: Апрель 13, 2023
Intelligent
rewritable
display
systems
have
been
long
expected
to
reduce
the
heavy
consumption
of
single-use
or
transient
devices
in
age
Internet-of-Things.
However,
it
remains
challenging
construct
such
with
integrated
functionality
remote
control,
rapid
activation,
multicolor
and
multimode
display.
Herein,
by
learning
from
unique
multilayer
arrangement
chromatophores
chameleon
skins,
a
promising
kind
hydrogel
is
presented
that
can
combine
merits
near-infrared
(NIR)
light-writing
projecting
modes
for
on-demand
information
Specifically,
typical
layout
consisting
poly(dimethylsiloxane)
(PDMS)-sealed
carbon
nanotubes
(CNTs)
film
as
photothermal
control
unit
embedded
fluorescent
hydrogels
unit,
which
thermoresponsive
constrained
within
non-responsive
hydrogel.
Such
rational
structure
design
results
establishment
one
mechanism
via
cascading
"light
trigger-heat
generation-fluorescence
output"
process.
On
this
basis,
reversible
hand-written
arbitrary
achieved
5
s.
Also,
sustainable
light-projecting
predesigned
patterns
demonstrated
due
ensures
easy
patterning
layer.
This
study
brings
functional-integrated
novel
open
new
possibility
high-end
products
display/transmission.
Materials Horizons,
Год журнала:
2023,
Номер
11(1), С. 217 - 226
Опубликована: Окт. 20, 2023
Ionic
conductive
cholesteric
liquid
crystal
elastomers
with
dynamic
color-changing
and
electrical
sensing
functions
were
developed
through
the
integration
of
polymer
ionic
networks.
Abstract
Commodity
fraud
poses
significant
economic
and
public
health
risks
while
jeopardizing
market
stability.
A
promising
avenue
for
addressing
this
issue
involves
the
incorporation
of
physical
unclonable
function
(PUF)
in
anti‐counterfeiting
labels
commodity
authentication
purposes.
PUFs
are
a
large
number
unbreakable
security
generated
through
random
process,
which
exhibit
unique
pattern
responses
that
impervious
to
replication.
In
particular,
novel
kind
PUF
model,
called
structural
color‐based
PUFs,
combing
color
characteristics
angle‐dependent
stability
brightness
with
property,
offers
unassailable
encryption
capabilities
serves
as
formidable
safeguard
against
forgery.
This
review
undertakes
comprehensive
summary
recent
advancements
technology
leveraging
materials.
Moreover,
it
provides
systematic
description
recognition
employed
optical
PUFs.
Finally,
prospective
outlook
is
proposed
explain
existing
challenges,
highlight
potential
developments
incorporating
labels.
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 12, 2025
Abstract
Blue
phase
liquid
crystal
(BPLC)
dynamic
patterns
have
attracted
wide
attention
for
promising
applications
in
optical
information
manipulation
and
visualization
sensing,
owing
to
unique
3D
chiral
helix
superstructure
adjustable
bright/abundant
colors
response
extra
fields.
Inkjet
printing
has
become
an
efficient
approach
achieving
programmable
BPLC
patterns.
However,
it
remains
a
challenge
achieve
independent
“on/off”
control
of
regional
using
the
same
ink
due
unrevealed
temperature‐time‐dependent
color
change
behavior
determined
by
different
inks.
Herein,
comprehensive
understanding
reflective
bandgap
shift
law
versus
temperature/time
is
established
investigating
diffusion
kinetics
multiple
inks
(5CB,
6CB,
8CB)
hydrophobically
modified
blue‐phase
polymer
templates.
The
three
induce
redshift
followed
blueshift
color/reflectance
wavelengths,
but
triggering
times
differ
significantly
at
temperature,
which
attributed
inks'
transition
characteristics,
fluid
properties,
interaction
with
network.
Dynamic
multi‐color
selective
region
are
successfully
fabricated
based
on
time‐temperature
controlled
multi‐ink
technique
displaying
time‐series
multi‐level
encryption
(including
“growing
apple
tree”
“nested
QR
codes”).
This
study
provides
important
insights
into
design
fabrication
advanced
devices
