ACS Applied Materials & Interfaces,
Год журнала:
2024,
Номер
16(12), С. 15242 - 15250
Опубликована: Март 14, 2024
A
coordination
complex,
Eu(C12C12dbm)3(phen),
with
strong
emission
and
a
high
quantum
yield
(QY
∼
51.9%)
was
synthesized.
The
EuIII
as
fluorescent
emitter,
embedded
in
cholesteric
liquid
crystal
polymer
networks
(CLCNs).
series
of
free-standing
EuIII-CLCN
films
were
obtained,
generating
typical
sharp
band
corresponding
to
the
complex.
Tunable
handedness
circularly
polarized
luminescence
(CPL)
|glum|
values
(up
0.63)
observed.
CPL-active
CLCN-coated
PET
also
prepared
(|glum|
up
0.63),
which
can
be
used
for
large-area
preparations.
Moreover,
by
stacking
an
emitter-embedded
PMMA
layer
CLCN
layer,
composite
system
built,
large
value
(∼1.42)
achieved.
Fluorescence
patterns
prepared,
distinct
images
recognized
under
both
daylight
UV
light.
This
work
not
only
demonstrated
that
compounds
could
incorporated
prepare
materials
but
provided
new
perspective
emissive
anticounterfeiting
encryption.
Advanced Functional Materials,
Год журнала:
2023,
Номер
33(23)
Опубликована: Фев. 28, 2023
Abstract
Structural
colorful
cholesterics
show
impressive
susceptibility
to
external
stimulation,
leading
applications
in
electro/mechano‐chromic
devices.
However,
out‐of‐plane
actuation
of
structural
actuators
based
on
and
the
integration
with
other
stimulation
remains
underdeveloped.
Herein,
motile
humidity
sensors
are
developed
using
humidity‐responsive
cholesteric
liquid
crystal
networks
(CLCNs)
magnetic
composites.
The
actuator
can
exhibit
synergistic
shape
morphing
color
change
response
humidity,
CLCNs
as
artificial
muscles.
Through
control,
sensor
be
navigated
open
confined
spaces
aid
friction
detect
local
relative
humidity.
multi‐stimulation
will
expand
research
frontier
for
spaces.
Advanced Materials,
Год журнала:
2023,
Номер
35(23)
Опубликована: Янв. 9, 2023
The
collective
oscillation
of
free
electrons
at
the
nanoscale
surface
gold
nanostructures
is
closely
modulated
by
tuning
size,
shape/morphology,
phase,
composition,
hybridization,
assembly,
and
nanopatterning,
along
with
surroundings
plasmonic
located
a
dielectric
interface
air,
liquid,
solid.
This
review
first
introduces
physical
origin
intrinsic
optical
properties
further
summarizes
stimuli-responsive
changes
in
properties,
metal-field-enhanced
signals,
luminescence
spectral
shaping,
chiroptical
response,
photogenerated
hot
carriers.
current
success
landscape
nanoscience
nanotechnology
mainly
originates
from
abundant
thermodynamically
stable
face-centered
cubic
(fcc)
phase.
It
has
been
extended
crystal
phase
engineering
to
prepare
unfavorable
phases
(e.g.,
kinetically
stable)
heterophases
modulate
their
intriguing
phase-dependent
properties.
A
broad
range
promising
applications,
including
but
not
limited
full-color
displays,
solar
energy
harvesting,
photochemical
reactions,
sensing,
microscopic/biomedical
imaging,
have
fostered
parallel
research
on
multitude
effects
occurring
nanostructures.
Abstract
The
increasing
demand
for
the
multidimensional
and
dynamic
control
of
light
has
spurred
development
stimuli‐responsive,
reconfigurable,
programmable
optical
systems.
Liquid
crystals
(LCs),
which
combine
liquid‐like
stimuli‐responsiveness
crystal‐like
orientational
ordering,
have
emerged
as
highly
appealing
soft
materials.
Owing
to
their
exceptional
performance
functionalities,
they
are
becoming
incredibly
important
materials
in
active
planar
optics
photonics.
Additionally,
silk
proteins,
luminescent
materials,
metasurfaces
exhibit
properties,
enabling
remarkable
multifunctional
applications.
This
review
focuses
on
advancements
stimuli‐responsive
including
LCs,
well
some
these
paired
with
LCs.
Their
attractive
tunable
applications
photonics,
along
great
potential
future
systems,
also
emphasized.
Advanced Functional Materials,
Год журнала:
2023,
Номер
33(46)
Опубликована: Июль 6, 2023
Abstract
Chiral
liquid
crystal
elastomers
(CLCEs)
are
soft
photonic
materials
that
exhibit
both
the
characteristics
of
nanoscale
periodic
helical
structures
and
mechanical
properties
rubber.
Owing
to
its
elasticity,
structural
color
CLCEs
can
be
tuned
through
deformations
known
as
mechanochromism.
Thus
far,
there
is
significant
research
attention
exploring
mechanochromism
CLCEs.
However,
most
studies
have
only
discussed
shifting
under
uniaxial
deformation.
Therefore,
optical
chiral
deformation
behaviors
multiaxial
stress
not
well
understood.
This
study
investigates
(uniaxial,
biaxial,
out‐of‐plane)
stretching‐induced
structure
change
resulting
The
results
confirm
stretching
leads
a
loss
intrinsic
circular
polarization
selectivity
in
due
helix
unwinding
deformations,
while
biaxial
out‐of‐plane
maintain
polarization.
ACS Applied Materials & Interfaces,
Год журнала:
2024,
Номер
16(12), С. 15242 - 15250
Опубликована: Март 14, 2024
A
coordination
complex,
Eu(C12C12dbm)3(phen),
with
strong
emission
and
a
high
quantum
yield
(QY
∼
51.9%)
was
synthesized.
The
EuIII
as
fluorescent
emitter,
embedded
in
cholesteric
liquid
crystal
polymer
networks
(CLCNs).
series
of
free-standing
EuIII-CLCN
films
were
obtained,
generating
typical
sharp
band
corresponding
to
the
complex.
Tunable
handedness
circularly
polarized
luminescence
(CPL)
|glum|
values
(up
0.63)
observed.
CPL-active
CLCN-coated
PET
also
prepared
(|glum|
up
0.63),
which
can
be
used
for
large-area
preparations.
Moreover,
by
stacking
an
emitter-embedded
PMMA
layer
CLCN
layer,
composite
system
built,
large
value
(∼1.42)
achieved.
Fluorescence
patterns
prepared,
distinct
images
recognized
under
both
daylight
UV
light.
This
work
not
only
demonstrated
that
compounds
could
incorporated
prepare
materials
but
provided
new
perspective
emissive
anticounterfeiting
encryption.
