Small,
Journal Year:
2023,
Volume and Issue:
unknown
Published: Nov. 22, 2023
Abstract
Carbonized
polymer
dots
(CPDs)
with
a
circularly
polarized
fluorescence
property
have
received
increasing
attention
in
recent
years.
However,
it
is
still
great
challenge
to
construct
room‐temperature
phosphorescence
(CPRTP)
CPDs.
Herein,
simple
approach
the
synthesis
of
intrinsically
CPRTP
CPDs
for
first
time
by
utilizing
sodium
alginate
and
l
‐/
d
‐arginine
as
precursors
under
relatively
mild
reaction
conditions
presented.
Notably,
exhibit
both
chirality
green
RTP
solid
states.
Furthermore,
color‐tunable
successfully
achieved
engineering
chiral
light‐harvesting
systems
based
on
resonance
energy
transfer
(
C
‐PRET)
where
function
an
initiator
light
absorbance,
commercially
available
fluorescent
dyes
different
emission
colors
ranging
from
yellow
red
serve
terminal
acceptors.
Through
one‐step
or
sequential
‐PRET,
can
simultaneously
furnish
transmission/amplification.
Given
multicolor
long
afterglow,
lifetime‐tunable,
properties,
their
potential
applications
multiple
information
encryption
are
demonstrated.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(26)
Published: Feb. 28, 2024
Abstract
Organic
luminescent
materials
exhibiting
persistent
room
temperature
phosphorescence
(RTP)
have
garnered
considerable
interest
due
to
their
versatile
applications.
However,
the
mechanism
is
still
unclear,
especially
for
molecular
structure‐molecular
arrangement‐property
relationship.
Herein,
six
derivatives
of
phenothiazine
5,5‐dioxide
are
synthesized,
revealing
distinct
RTP
properties
and
associated
underlying
mechanisms.
Careful
analyses
single
crystal
structures,
combined
with
initial
theoretical
calculations,
indicate
that
effect
facilitated
by
effective
intermolecular
π–π
interactions
in
solid
state
led
folded
conformation.
Specifically,
PTZO‐CF
3
‐3F
exhibits
distinctive
photo‐activated
both
grinding
response
changes
arrangement.
Besides,
a
porous
structure
found
be
present
‐2F
crystal,
offering
it
great
sensitivity
oxygen
intensity
lifetime.
Accordingly,
visual
warning
device
fabricated
successfully.
Furthermore,
successfully
utilized
applications
anti‐counterfeiting
optical
logic
gates,
expanding
scope
stimulus‐responsive
broader
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(18)
Published: March 8, 2024
A
general
approach
to
constructing
room
temperature
phosphorescence
(RTP)
materials
involves
the
incorporation
of
a
phosphorescent
emitter
into
rigid
host
or
polymers
with
high
glass
transition
temperature.
However,
these
often
suffer
from
poor
processability
and
suboptimal
mechanical
properties,
limiting
their
practical
applications.
In
this
work,
we
developed
benzothiadiazole-based
dialkene
(BTD-HEA),
multifunctional
remarkable
yield
intersystem
crossing
(Φ
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: July 21, 2024
Abstract
Circularly
polarized
luminescence
(CPL)
materials
offer
exciting
potential
due
to
their
unique
light
properties.
However,
controlling
the
color
of
afterglow
emission,
a
key
feature
for
many
applications
remains
challenge.
Here,
co‐doping
strategy
is
presented
precise
control
multicolor
CPL
in
films.
This
approach
utilizes
chiral
naphthylphosphoric
acid
derivatives
as
energy
and
chirality
transfer
donors,
commonly
used
fluorescent
dye
rhodamine
B
(RB)
PVA
are
selected
acceptor
polymeric
matrix,
respectively.
Remarkably,
co‐doped
films
exhibit
ultra‐long
green
circular
polarization
phosphorescence
lasting
several
seconds
with
high
efficiency
(14.23%),
lifetime
(1025.5
ms),
dissymmetry
factor
(8.44
×
10
−3
).
Crucially,
by
adjusting
content,
it
can
precisely
tune
phosphorescence‐to‐fluorescence
ratio
achieve
afterglow.
stems
from
combination
Förster
resonance
transfer,
color‐mixing
effects.
Furthermore,
this
significantly
improves
asymmetry
an
order
magnitude
(5.17
−2
It
anticipated
that
straightforward
regulating
will
provide
invaluable
insights
future
design
highly
efficient
innovative
materials.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(25)
Published: March 27, 2024
Cephalopods
evolve
the
acetylcholine-gated
actuation
control
function
of
their
skin
muscles,
which
enables
dynamic/static
multimode
display
capacities
for
achieving
perfectly
spatial
over
colors/patterns
on
every
inch
skin.
Reproduction
artificial
analogs
that
exhibit
similar
multimodal
is
essential
to
reach
advanced
information
three-dimensional
(3D)
encoding
with
higher
security
than
classic
2D-encoding
strategy,
but
remains
underdeveloped.
The
core
difficulty
how
replicate
such
chemical-gated
into
soft
actuating
systems.
Herein,
this
work
proposes
develop
azobenzene-functionalized
poly(acrylamide)
(PAAm)
hydrogel
systems,
whose
upper
critical
solution
temperature
(UCST)
type
responsiveness
can
be
intelligently
programmed
or
even
gated
by
addition
hydrophilic
α-cyclodextrin
(α-CD)
molecules
reversible
association
pendant
azobenzene
moieties
via
supramolecular
host-guest
interactions.
By
employing
α-CD-gated
actuator
as
an
analogue
cephalopods'
muscle,
biomimetic
mechanically
modulated
multicolor
fluorescent
systems
are
designed,
demonstrate
a
conceptually
new
"thermal
stimulation-hydrogel
actuation-fluorescence
output"
mechanism.
Consequently,
high-security
3D-encoding
carriers
unprecedented
combination
single-input
multiple-output,
dual-mode
and
spatially
controlled
achieved.
This
bioinspired
strategy
brings
functional-integrated
features
opens
previously
unidentified
avenues
security.
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
Applied Physics Reviews,
Journal Year:
2023,
Volume and Issue:
10(2)
Published: May 31, 2023
Multicolor
organic
room
temperature
phosphorescence
(RTP)
has
garnered
wide
research
attention
due
to
the
long
luminescence
lifetime
and
tunable
excited
state
properties,
which
show
great
potential
in
displays,
anticounterfeiting,
data
encryption,
sensing.
However,
because
of
sensitivity
triplet
excitons
materials,
emitting
level
compounds
is
hard
manipulate.
Therefore,
realizing
multicolor
RTP
materials
still
a
huge
challenge.
In
this
review,
we
summarize
recent
advances
including
underlying
mechanisms,
design
principles
phosphorescence,
detailed
photophysical
behaviors,
their
applications.
The
last
part
presents
existing
challenges
future
perspectives,
such
as
expanding
color
gamut,
enriching
stimuli-responsive
improving
performance,
exploring
more
advanced
This
review
will
provide
inspiration
guidelines
for
constructing
applications
electronics,
bioelectronics,
flexible
so
on.
Advanced Materials,
Journal Year:
2023,
Volume and Issue:
35(46)
Published: July 28, 2023
Abstract
Smart‐response
materials
with
ultralong
room‐temperature
phosphorescence
(RTP)
are
highly
desirable,
but
they
have
rarely
been
described,
especially
those
originating
from
sustainable
polymers.
Herein,
a
variety
of
cellulose
derivatives
1,4‐dihydropyridine
(DHP)
rings
synthesized
through
the
Hantzsch
reaction,
giving
impressive
RTP
long
lifetime
up
to
1251
ms.
Specifically,
introduction
acetoacetyl
groups
and
DHP
promotes
spin‐orbit
coupling
intersystem
crossing
process;
multiple
interactions
between
induce
clustering
inhibit
nonradiative
transitions,
boosting
long‐live
RTP.
Furthermore,
resulting
transparent
flexible
films
also
exhibit
excitation‐dependent
color‐tunable
afterglows
by
introducing
different
extended
aromatic
groups.
More
interestingly,
performance
these
is
sensitive
water
can
be
repeated
in
response
wet/dry
stimuli.
Inspired
advantages,
demonstrates
advanced
applications
information
encryption
anti‐counterfeiting.
This
work
not
only
enriches
photophysical
properties
provides
versatile
platform
for
development
afterglows.
Advanced Materials,
Journal Year:
2023,
Volume and Issue:
35(47)
Published: Aug. 28, 2023
The
large-scale
preparation
of
sustainable
room-temperature
phosphorescence
(RTP)
materials,
particularly
those
with
stimulus-response
properties,
is
attractive
but
remains
challenging.
This
study
develops
a
facile
heterogeneous
B─O
covalent
bonding
strategy
to
anchor
arylboronic
acid
chromophores
cellulose
chains
using
pure
water
as
solvent,
resulting
in
multicolor
RTP
cellulose.
rigid
environment
provided
by
the
bonds
and
hydrogen
promotes
triplet
population
suppresses
quenching,
leading
an
excellent
lifetime
1.42
s
for
target
By
increasing
degree
chromophore
conjugation,
afterglow
colors
can
be
tuned
from
blue
green
then
red.
Motivated
this
finding,
papermaking
production
line
built
convert
paper
pulp
reacted
additive
into
on
large
scale.
Furthermore,
sensitive
because
destruction
bonds,
stimuli-response
repeated
response
water/heat
stimuli.
folded
3D
origami
handicrafts
anti-counterfeiting
packing
boxes
or
used
stimulus-responsive
information
encryption.
success
paves
way
development
large-scale,
eco-friendly,
practical
stimuli-responsive
materials.
