ACS Applied Optical Materials,
Journal Year:
2024,
Volume and Issue:
2(11), P. 2221 - 2228
Published: Nov. 11, 2024
An
unsymmetrical
perylene
diester
imide
(PEIST),
with
flexible
chains
connected
through
and
ester
functionalities,
was
prepared
microwave-assisted
synthesis.
This
compound
displayed
a
remarkable
fluorescence
quantum
yield
of
87%
an
exceptional
performance
in
host–guest
OLED
by
doping
CBP
at
0.5
wt
%
concentration,
providing
EQEmax
5.4%
complemented
brightness
4265
cd/m2.
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 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 Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 16, 2024
Abstract
Circularly
polarized
luminescent
(CPL)
materials
have
garnered
tremendous
attention
owing
to
their
expanded
optical
properties
beyond
emission
wavelength
and
intensity.
Among
these,
the
emerging
circularly
organic
ultralong
room‐temperature
phosphorescence
(CP‐OURTP)
materialsdemonstrating
elegant
distinct
features
are
of
significant
importance
for
extended
lifetime,
which
represent
a
novel
frontier
in
research
with
promising
scientific
technological
applications
across
diverse
fields.
This
review
systematically
outlines
traditional
strategies
achieve
CP‐OURTP
including
crystals,
copolymerization,
host–guest
doping,
combination
copolymerization
spinning
twisting
technology,
supramolecular
polymer
assembly.
Importantly,
recent
progress
chiral
soft
materials,
such
as
liquid
crystals
(LCs)
involving
lyotropic
LCs
(cellulose
nanocrystals,
CNCs)
thermotropic
(cholesteric
LC
elastomers),
is
showcased.
Finally,
practical
summarized,
concludes
perspectives
on
current
challenges
future
opportunities
materials.
aims
inspire
further
innovations
fabrication
advanced
enrich
applications.
ACS Applied Materials & Interfaces,
Journal Year:
2025,
Volume and Issue:
17(9), P. 14425 - 14432
Published: Feb. 20, 2025
Room
temperature
phosphorescence
(RTP)
materials
have
attracted
considerable
attention,
because
of
their
outstanding
properties
and
a
wide
array
potential
applications.
However,
achieving
control
over
the
emission
color
RTP
still
presents
certain
challenges.
In
this
article,
carbon
dots
(CDs)
three
distinct
colors
were
synthesized
through
simple
host-guest
doping
strategy.
Blue
CDs
(B-CDs)
obtained
by
using
phenylboronic
acid
as
guest
phosphors
B2O3
host
protect
matrix,
an
ultralong
lifetime
(up
to
1.597
s).
Under
254
nm
light
excitation,
blue
for
14
s
B-CDs
can
be
visually
observed.
By
increasing
conjugation
degree
precursor
molecules
introducing
4-(1-naphthyl)
naphthalene-1-boronic
pyren-1-ylboronic
phosphors,
green
(G-CDs)
red
(R-CDs)
obtained,
respectively.
Theoretical
calculations
band
gap
analyses
suggest
that
larger
conjugated
structures
reduce
HOMO-LUMO
energy
level
difference,
thereby
causing
redshift
in
wavelength.
Last,
these
multicolor
composite
applied
information
encryption.
Blue-phase
liquid
crystals
(BPLCs)
have
shown
great
potential
in
hyper-reflective
display
technology
due
to
their
narrow
bandgap,
high
color
saturation,
and
fast
response
characteristics.
However,
there
remains
a
significant
challenge
for
achieving
open-patternable
dual-chiral
BPLC
films
(DH-BP)
precise
tuning
efficient
hyper-reflection
the
packaging
limitations
of
crystal
cells
complexities
dynamic
bandgap
matching
principle.
In
this
study,
an
situ
secondary
growth
strategy
was
proposed
successfully
fabricate
structurally
continuous
uniform
DH-BP
films.
Key
factors
affecting
uniformity
were
thoroughly
analyzed,
including
optimization
material
structure,
surface
modification
polymer
template,
control
thickness.
Subsequently,
inkjet
printing
ink
diffusion
swelling
techniques
employed
achieve
films,
with
tunable
range
approximately
109
nm
(from
576
467
nm),
maximum
reflectivity
up
97%.
Finally,
multi-information
encryption
by
integrating
color,
polarization,
hyper-reflection.
The
method
provides
new
insights
into
design
high-saturation,
high-reflection
displays
has
broad
application
prospects
energy-efficient
security
technologies.
ACS Nano,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 20, 2025
The
light-soft
matter
interaction
and
its
applications
form
the
foundation
of
Soft
Matter
Photonics,
here
termed
"Soft
Mattonics",
positioning
it
as
fertile
ground
for
developing
next-generation
photonic
technologies.
Over
past
few
decades,
this
rapidly
evolving
field
has
achieved
significant
advancements,
leading
to
successful
across
a
wide
range
disciplines,
including
optoelectronics,
photonics,
information
technology,
material
science,
robotics,
biomedicine,
astronomy.
In
Perspective,
we
provide
an
overview
Mattonics,
highlighting
recent
developments
in
light-controlled
soft
their
light
manipulating.
Additionally,
offer
insights
into
future
research
directions
with
emphasis
on
both
foundational
practical
that
will
drive
continued
growth
innovation
field.
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: May 2, 2025
Abstract
Circularly
polarized
luminescence
(CPL)
plays
a
crucial
role
in
chiral
science
and
photonic
technologies.
However,
developing
multi‐color
tunable
circularly
room
temperature
phosphorescence
(CP‐RTP)
materials
with
high
luminescent
dissymmetric
factor
(
g
lum
)
superior
processibility
remains
challenging.
Here,
an
effective
strategy
is
demonstrated
to
construct
remarkably
processable
films
that
exhibit
CP‐RTP
characteristics
by
incorporating
RTP
polymers
into
cholesteric
cellulose
nanocrystals
(CNCs)
the
assistance
of
D‐(+)‐glucose
(Glu).
The
Glu
especially
selected
prepare
flexible
iridescent
colors
responsive
CNC‐RTP
modulate
band
gaps
(PBGs)
CNCs
via
hydrogen‐bonding
interactions.
PBGs
allow
for
control
wavelength
handedness
while
achieving
|
value
up
0.59
long
lifetime
371
ms.
Importantly,
3D
arbitrarily
patterned
excellent
processability
multiple
are
demonstrated.
Furthermore,
leveraging
structural
colors,
fluorescence,
lifetimes,
circular
polarization
characteristics,
time‐dependent
afterglow
properties
these
films,
multilevel
data
encryption
applications
also
presented.
These
sustainable
scalable
remarkable
processibility,
present
novel
opportunities
pave
way
diverse
technological
information
processing
encryption.
Chirality,
Journal Year:
2025,
Volume and Issue:
37(1)
Published: Jan. 1, 2025
ABSTRACT
The
synthesis,
structure,
and
circularly
polarized
luminescence
(CPL)
properties
of
axially
chiral
boron
difluoride
complexes
are
described.
A
series
optically
pure
bis
(boron
difluoride)
were
prepared
in
5
steps
from
commercially
available
(
S
)‐
or
R
)‐BINOL
as
starting
materials.
found
to
exhibit
similar
yellow
photoluminescence
solution,
regardless
the
type
substituents
on
nitrogen
atoms.
Notably,
for
complex
with
polyethylene
glycol
chains,
homogeneous
transparent
films
formed
by
drop‐cast
method,
showing
intense
CPL
a
different
sign
that
solution
state.
Density
functional
theory
(DFT)
calculations
performed
understand
their
photophysical
behavior
including
configuration‐dependent
properties.
