Chemistry - A European Journal,
Journal Year:
2024,
Volume and Issue:
30(68)
Published: Aug. 24, 2024
Tunable
luminescence-assisted
information
storage
and
encryption
holds
increasing
significance
in
today's
society.
A
promising
approach
to
incorporating
the
benefits
of
both
organic
long
persistent
luminescent
(LPL)
materials
rare-earth
(RE)
luminescence
lies
utilizing
host
sensitize
RE
luminescence,
as
well
employing
Förster
resonance
energy
transfer
from
hydrogen-bonded
framework
(HOF)
phosphorescence
compound
luminescence.
This
work
introduces
a
one-pot,
situ
pyrolytic
condensation
method,
achieved
through
high-temperature
melting
calcination,
synthesize
lanthanide
ion-doped
HOF
materials.
method
circumvents
drawback
molecular
triplet
annihilation,
enabling
creation
LPL
with
characteristics.
The
material
serves
host,
exhibiting
blue
cyan
LPL.
By
fine-tuning
doping
amount,
composite
U-Tb-100
achieves
green
quantum
yield
56.4
%,
an
duration
approximately
2-3
s,
demonstrating
tunable
persistence.
Single-crystal
X-ray
diffraction,
spectral
analysis,
theoretical
calculation
unveil
that
exhibits
exceptional
long-lived
primarily
due
efficient
sensitization
U
monomer
ions
PRET
process
between
complexes.
ingenious
strategy
not
only
expands
repertoire
but
also
facilitates
design
multifunctional
Chemistry of Materials,
Journal Year:
2024,
Volume and Issue:
36(21), P. 10451 - 10473
Published: Oct. 15, 2024
The
incessant
threats
of
counterfeiting
outbreaks
promptly
demand
augmentation
in
the
development
novel
security
routes.
Luminescent
metal–organic
frameworks
(L-MOFs)
with
broad
spectral
emission
and
potential
for
modulation
via
judicious
controlled
amendment
have
emerged
as
promising
materials
measures
anticounterfeiting
applications.
This
Perspective
provides
an
overview
current
developments
utilization
L-MOF
measures.
fundamental
principles
mechanisms
behind
origin
luminescence
are
discussed
at
large.
Herein,
we
also
cover
external
stimuli-triggered
subsequent
alteration
optical
properties
de
novo
L-MOFs
well
their
reconfigurable
composite
materials.
Further,
practical
participation
real-time
like
latent
fingerprint
(LFP)
detection,
logic
gate
integrated
molecular
keypad
lock
systems,
computing
systems
data
protection
deliberated.
shortcomings
hurdles
to
employing
materials,
such
scalability,
long-term
sustainability,
integration
technologies,
been
taken
into
account
this
Perspective.
Continued
research
efforts
deemed
essential
overcome
these
challenges
fully
realize
combating
enhancing
Despite
challenges,
prospect
applications
is
seen
promising,
driven
by
ongoing
advancements
material
science
innovative
approaches
overcoming
limitations.
Small,
Journal Year:
2024,
Volume and Issue:
20(44)
Published: July 10, 2024
Development
of
luminescent
segmented
heterostructures
featuring
multiple
spatial-responsive
blocks
is
important
to
achieve
miniaturized
photonic
barcodes
toward
anti-counterfeit
applications.
Unfortunately,
dynamic
manipulation
the
spatial
color
at
micro/nanoscale
still
remains
a
formidable
challenge.
Here,
straightforward
strategy
proposed
construct
spatially
varied
through
amplifying
conformation-driven
response
in
flexible
lanthanide-metal-organic
frameworks
(Ln-MOFs),
where
thermally
induced
minor
conformational
changes
organic
donors
dramatically
modulate
photoluminescence
Ln
acceptors.
Notably,
compositionally
and
structurally
distinct
(1D
2D)
are
further
constructed
epitaxial
growth
responsive
MOF
benefiting
from
isomorphous
Ln-MOF
structures.
The
controlled
emissive
colors
with
distinguishable
spectra
carry
fingerprint
information
specific
heterostructure,
thus
allowing
for
effective
construction
smart
characteristics.
results
will
deepen
understanding
mechanism
also
provide
guidance
fabricate
complex
stimuli-responsive
hierarchical
microstructures
advanced
optical
recording
high-security
labels.
ACS Sensors,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 12, 2025
Daylight
visualization
of
latent
fingerprints
(LFPs)
is
highly
desirable
due
to
its
convenience
and
safety
for
inspectors.
However,
achieving
this
with
details
exceeding
level
3
using
nontoxic
materials
presents
a
significant
challenge.
Here,
we
address
challenge
by
utilizing
cyclosiloxane-linked
fluorescent
porous
polymers
(FPPs)
as
the
developers.
These
FPPs
were
synthesized
from
2,4,6,8-tetramethyl-2,4,6,8-tetravinylcyclotetrasiloxane
brominated
monomers
via
Heck
reactions.
The
resulting
FPPs,
available
powders
in
various
colors,
exhibit
high
porosity
strong
fluorescence.
By
employing
classical
powder
dusting
method
LFPs
1–3
become
visible
on
substrates,
including
copper,
iron,
aluminum,
tinfoil,
wood,
under
daylight.
This
approach
provides
resolution
contrast
resistance
background
interference
colored
substrates.
efficient
attributed
contradictory
electrostatic
hydrogen-bonding
interactions
between
fingerprint
secretions,
which
ensure
adhesion
exclusively
ridges
rather
than
furrows.
Furthermore,
are
noncytotoxic
do
not
impede
DNA
extraction
identification
after
LFP
visualization.
study
represents
first
example
daylight
surpassing
developers,
thereby
mitigating
risks
associated
material
toxicity
light
exposure
findings
highlight
potential
developers
crime
scenes.
straightforward
broadly
applicable
protocol
may
pave
way
further
advancements
methods
LFPs.
Nanoscale,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
The
luminescent
properties
of
β-Ga
2
O
3
:Dy
3+
enable
the
development
optical
PUF
tags
with
exceptional
encoding
capacity,
solar-blind
response,
and
thermal
stability,
making
them
highly
effective
for
anti-counterfeiting
encryption
applications.
CrystEngComm,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
We
report
surfactant-free,
core–shell
structured
CsPbBr
3
MCs
featuring
a
Pb(OH)
2
layer
on
their
surface,
which
replaces
the
organic
passivation
and
facilitates
amino
acid
binding
via
hydrogen
bonds
for
high-quality
PL
images
of
level-3
features.
