Advanced Optical Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: May 19, 2025
Abstract
Electro‐fluorochromic
(EFC)
dual‐functional
materials
have
attracted
remarkable
attention
due
to
their
feature
about
two
distinct
display
modes.
Carbon
dots
(CDs)
stand
out
as
a
tunable
photoluminescent
materials.
The
pursuit
of
tunability
controlled
by
electricity
in
dynamic
devices
remains
challenging
goal.
In
this
study,
an
EFC
material
is
developed
based
on
electrochromic
(EC)
Prussian
blue
(PB)
and
aggregation‐induced
emission
CDs,
utilizing
energy
transfer
mechanism
achieve
synergistic
modulation.
CDs/PB
film
exhibited
reversible
optical
responses
while
maintaining
excellent
EC
performance
PB
with
stable
cycling
over
2000
cycles
fast
response
speed.
This
shows
promising
potential
for
advanced
technologies,
interactive
interfaces,
anticounterfeiting
applications.
These
findings
provide
valuable
strategy
the
development
multifunctional
sensors.
Analytical Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 14, 2025
Ethylenediamine
(EDA),
as
an
important
chemical
raw
material
and
fine
intermediate,
has
been
widely
applied
in
various
industries.
Real-time
monitoring
of
EDA
is
highly
desirable
daily
life
due
to
its
potential
threat
human
health.
Herein,
we
report
a
molecular
probe
named
4,4'-(9H-carbazole-3,6-diyl)bis(1-(naphthalen-2-ylmethyl)pyridin-1-ium)
iodide
(p-N-DPC·I2)
with
ratiometric
luminescent
colorimetric
dual-mode
responses
toward
EDA,
endowing
sensitive
selective
detection
method
for
real-time
monitoring.
The
experimental
theoretical
calculation
results
revealed
that
the
response
mechanism
was
forming
charge
transfer
(CT)
state
when
p-N-DPC·I2
met
EDA.
In
addition,
hydrogel-based
sensing
chip
developed
achieve
ultrasensitive
recognition
vapor
naked
eye
at
concentration
low
10
ppm.
This
study
new
fluorescent
modes
detect
both
solution
vapor.
Research Square (Research Square),
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 13, 2025
Abstract
Carbon
quantum
dots
(CQDs)
with
photoluminescence
properties
have
been
widely
recognized,
however,
their
inherent
surface-enhanced
Raman
scattering
(SERS)
activity
is
rare
reported.
Herein,
we
propose
a
type
of
band-gap-tunable
CQDs
derived
from
metal-phenolic
network
(MPN)
that
exhibits
excellent
SERS
performance.
MPN-CQDs
may
be
the
ideal
nonmetallic
substrates
to
accurately
elucidate
chemical
mechanism
(CM)
due
simply
controllable
bandgap
structure.
By
screening
doped
metal
elements
MPN,
can
realize
optimal
effect
maximum
enhancement
factor
5.5×104,
also
exhibit
outstanding
reproducibility
and
stability.
We
then
systematically
disclose
interfacial
photo-induced
charge
transfer
process
corresponding
migration
pathways
between
analyte.
This
class
finally
applied
for
detection
hemoglobin
high
sensitivity;
further
combined
machine
learning
algorithm,
successfully
achieved
precise
identification
heterogeneity
hemoglobin.
first
evidence
tunable
performance
in
CQDs,
which
offers
facile
avenue
in-depth
understanding
CM
materials.
Chinese Journal of Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 20, 2025
Comprehensive
Summary
Stimuli‐responsive
organic
luminescent
materials
exhibit
significant
sensitivity
to
various
external
stimuli,
among
which
their
excellent
photosensitivity
is
particularly
prominent.
This
unique
feature
gives
them
great
potential
for
applications.
Herein,
five
small
molecule
emitters
based
on
triphenylamine
derivatives
have
been
synthesized
via
Suzuki‐coupling
reaction.
These
molecules
fluorescence
properties
with
quantum
yields
(
Φ
)
all
reaching
over
90%.
When
irradiated
a
365
nm
UV
lamp,
interesting
photochromic
phenomena
occurred
in
chloroform
solutions.
phenomenon
has
studied
intensively
by
UV‐vis
absorption
and
spectroscopy,
EPR
measurements,
density
functional
theory
calculations,
finally,
the
group
was
used
as
photoinitiation
precursor
electron
donor,
photo‐induced
charge
transfer
complex
(PCTC)
initiated
donor
successfully
constructed.
Chinese Journal of Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 21, 2025
Comprehensive
Summary
Traditional
fluorescent
probes
typically
display
blueshifted
emission
in
rigidifying
media;
however,
a
newly
developed
class
of
rigidochromic
fluorophores
derived
from
phenanthridine
demonstrates
remarkable
redshifted
under
similar
conditions.
Pyridine,
with
N‐heterostructure
to
those
group,
is
considered
promising
candidate
for
achieving
comparable
rigidity‐induced
redshift
behavior.
In
this
work,
we
synthesized
eight
organic
featuring
diverse
functional
units
and
substitutes
by
systematically
combining
pyridine
carbazole,
triazatruxene
(TAT),
tetraphenylethylene
(TPE),
respectively.
These
molecules
exhibit
significant
redshifts
(up
225
nm,
record
high
value
ever
reported)
or
notable
intensity
changes
as
the
rigidity
polymer
matrix
increases,
along
unique
acid
responsiveness.
The
differences
polar‐π
interactions
between
polymers
diversify
behavior,
advancing
development
secure
printing
intelligent
optical
materials.
By
embedding
these
into
films
helical
phase
structures,
tunable
chirality
was
achieved.
Notably,
leveraging
acid‐responsive
properties
fluorophores,
time‐dependent
light‐controlled
dynamic
encryption
system
constructed,
successfully
enabling
multi‐level
information
encryption.
This
research
greatly
expands
scope
their
applications
anti‐counterfeiting
storage.
Advanced Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 30, 2025
Abstract
Various
modification
methods
for
lithium‐metal
battery
separators
have
been
well
explored
in
the
past
decades,
among
which
most
common
process
is
to
coat
modified
slurries
onto
by
blade‐coating
method.
However,
distribution
of
often
non‐uniform
this
process,
while
uniformity
usually
needs
be
detected
electron
microscope,
time
and
cost‐consuming.
To
solve
long‐standing
technical
issue,
it
focuses
on
“visualization”
effect
with
negatively
charged
carbon
dots
under
UV
light,
deeply
investigates
ion
transport
problem
caused
material
modification.
With
unique
“visual
engineering”
strategy,
uniform
separator
can
easily
detected,
further
allows
construction
a
negative
shielding
layer
cation
channels.
It
accelerates
realizes
stable
Li
stripping
deposition
avoids
dendrite
growth.
end,
symmetric
batteries
different
electrolyte
compositions,
operation
1200
h
achieved.
In
addition,
polysulfide
shuttles
greatly
suppressed,
thus
avoiding
infamous
“shuttle
effect”
lithium–sulfur
batteries.
This
work
provides
new
avenue
screening
well‐modified
through
engineering”,
accelerating
practical
application
series
rechargeable
Research Square (Research Square),
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 7, 2025
Abstract
Developing
room-temperature
phosphorescent
(RTP)
materials
with
microscale
periodic
structures
presents
a
promising
prospect
for
future
optical
applications
but
remains
extremely
challenging
due
to
the
complex
integration
of
luminescent
and
structural
components.
Herein,
we
present
an
emerging
strategy
mass-producing
monodisperse
RTP
silica
nanospheres
(RTP
SiO2
NPs)
using
modified
Stöber
method,
where
organic
molecules
are
embedded
in
networks
undergone
situ
carbonization,
aggregation
crystallization
form
carbon
dots
under
high
temperature
calcination.
These
NPs
can
self-assemble
into
photonic
crystal
(PC)
structures,
enabling
straightforward
color,
fluorescence
(FL)
achieve
multimodal
properties.
The
angle-dependent
bandgap
(PBG)
generated
by
physical
structure
modulates
light
propagation
PC
gel,
creating
unique
FL
chromatic
responses.
Temperature-induced
refractive
index
changes
between
liquid
matrix
further
enable
dynamic
control
scattering
states,
significantly
altering
transmittance
emission
intensities
RTP.
This
successful
fusion
chemical
luminescence
offers
new
approach
constructing
advanced
devices.
