Crystals,
Journal Year:
2024,
Volume and Issue:
14(12), P. 1077 - 1077
Published: Dec. 13, 2024
This
study
reviews
the
advanced
anti-counterfeiting
applications
of
CsCdCl3,
a
lead-free
all-inorganic
perovskite
crystal
exhibiting
dynamic
luminescent
properties
responsive
to
temperature
and
UV
light.
Using
synthesis
methods
such
as
Bridgman
hydrothermal
techniques
incorporating
dopants
like
bromine
tellurium,
this
research
achieves
improved
stability,
spectral
diversity,
afterglow
characteristics
in
CsCdCl3.
The
demonstrates
extended
afterglow,
photochromic
shifts,
temperature-sensitive
luminescence,
enabling
4D
encoding
for
secure
data
encryption
cold-chain
monitoring
pharmaceuticals.
Despite
these
promising
attributes,
challenges
related
photostability,
batch
consistency,
environmental
resilience
persist,
necessitating
further
exploration
into
optimized
doping
strategies
enhance
material
stability.
These
findings
underscore
potential
CsCdCl3
high-security
information
storage,
pharmaceutical
anti-counterfeiting,
real-time
sensing,
positioning
it
valuable
next
generation
secure,
intelligent
packaging
solutions.
Applied Physics Reviews,
Journal Year:
2024,
Volume and Issue:
11(1)
Published: Feb. 21, 2024
Discovering
energy
storage
materials
with
rationally
controlled
trapping
and
de-trapping
of
electrons
holes
upon
x-rays,
UV-light,
or
mechanical
force
stimulation
is
challenging.
Such
enable
promising
applications
in
various
fields,
for
instance
multimode
anti-counterfeiting,
x-ray
imaging,
non-real-time
recording.
In
this
work,
photoluminescence
spectroscopy,
the
refined
chemical
shift
model,
thermoluminescence
studies
will
be
combined
to
establish
vacuum
referred
binding
(VRBE)
diagrams
LiSc1−xLuxGeO4
family
compounds
containing
level
locations
Bi2+,
Bi3+,
lanthanides.
The
established
VRBE
are
used
develop
Bi3+
lanthanides
doped
phosphors
understand
processes
charge
carriers
physical
excitation
means.
intensity
irradiated
LiSc0.25Lu0.75GeO4:0.001Bi3+,0.001Eu3+
about
two
times
higher
than
that
state-of-the-art
phosphor
BaFBr(I):Eu2+.
Particularly,
a
induced
carrier
phenomenon
appears
Eu3+
co-doped
LiSc1−xLuxGeO4.
Proof-of-concept
recording,
imaging
demonstrated.
This
work
not
only
deepens
our
understanding
capturing
sources,
but
can
also
trigger
scientists
discover
new
by
exploiting
VRBEs
bismuth
lanthanide
levels.
Applied Physics Reviews,
Journal Year:
2024,
Volume and Issue:
11(4)
Published: Oct. 31, 2024
Discovering
light
dosimeters
that
can
function
effectively
from
liquid
nitrogen
temperature
to
700
K
presents
significant
challenges.
Such
facilitate
a
range
of
cutting-edge
applications,
including
anti-counterfeiting
measures
at
low
for
cryo-preservation.
To
such
discovery,
stacked
vacuum
referred
binding
energy
diagrams
the
LiYGeO4
cluster
crystals
have
been
first
constructed.
They
offer
robust
method
controlling
both
electron
and
hole
trapping
depth
in
crystals.
Wide
shifting
Bi2+
Eu2+
thermoluminescence
(TL)
glow
bands
emerges
200
500
LiYxLu1-xGeO4:0.01Bi3+
LiYxLu1-xGeO4:0.01Bi3+,
0.001Eu3+,
by
changing
x,
facilitating
conduction
band
tailoring.
Bi4+
TL
300
LiYGezSi1-zO4:0.01Bi3+,
tuning
z,
valence
peaks
near
135,
185,
232,
311
emerge
LiyNa1-yYGeO4:
0.001Bi3+.
Particularly,
discovered
Bi3+
or/and
lanthanide
modified
exhibit
superior
charge
carrier
storage
capacity
minimal
fading
properties.
For
instance,
ratio
intensity
optimized
LiYGe0.75Si0.25O4:0.001Bi3+
industrial
BaFBr(I):Eu2+
is
as
high
∼4.
Interestingly,
imaging
intense
optically
driven
ultraviolet-A
(UVA)
luminescence
has
validated
254
nm
energized
LiY0.25Lu0.75GeO4:0.01Bi3+
with
100
lux
white
LED
illumination.
Together
ZnS:Mn2+,
LiTaO3:Bi3+,
Sm3+,
Cs2ZrCl6:Sb3+
perovskites,
realization
wide
offers
promising
use
versatile
anti-counterfeiting,
information
storage,
delayed
x-ray
purposes.
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 10, 2025
Abstract
Recently,
lead‐free
double
perovskites
have
gained
much
attention
for
their
superior
optoelectronic
properties.
However,
realizing
efficient
white
light
and
near‐infrared
(NIR)
emission,
as
well
bright
radioluminescence
(RL)
in
a
single
compound
has
not
yet
been
reported.
Herein,
Bi
3+
/Mo
4+
‐codoped
Cs
2
Ag
0.6
Na
0.4
InCl
6
perovskite
is
synthesized
by
hydrothermal
reaction.
Under
photoexcitation,
the
codoped
exhibits
highly
broadband
warm‐white
emission
(610
nm)
NIR
(930
nm),
which
can
be
attributed
to
self‐trapped
exciton
of
d–d
transition
Mo
,
respectively.
Interestingly,
also
emits
strong
with
yield
25100
photons
per
MeV
under
X‐ray
irradiation.
Based
on
/PDMS
flexible
film,
its
applications
emitting
diodes
(WLED),
source,
scintillator
are
demonstrated,
respectively,
all
exhibit
remarkable
Finally,
as‐fabricated
devices
light,
NIR,
imaging
further
demonstrated
pixel‐level
image
fusion
realized
without
pixel
mismatch
complex
processing.
Therefore,
internal
information
capsule
wrapped
centrifuge
tube
iron
wire
successfully
through
fusion.
Advanced Optical Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: May 21, 2024
Abstract
Stimuli‐responsive
luminescent
materials
have
attracted
much
research
attention
due
to
their
wide
application
potential
in
various
fields.
Typically,
the
family
of
hydrated
double
perovskite
A
2
M
III
X
5
·H
O
shows
unique
emission
color
transformation
between
and
dehydrated
complexes,
highlighting
advanced
anti‐counterfeiting.
Herein,
two
zero‐dimensional
perovskites
Cs
YbCl
3
6
,
are
reported
broad‐band
self‐trapped
exciton
recombination
can
be
realized
via
external
Sb
3+
doping.
Intriguingly,
transformed
counterpart
through
a
facile
methanol
treatment
at
room
temperature,
leading
from
yellow
green.
Notably,
green‐emissive
:Sb
delivers
high
photoluminescence
quantum
yield
67.3%.
Leveraging
advantages
obvious
methanol‐induced
used
field
high‐security‐level
Advanced Optical Materials,
Journal Year:
2024,
Volume and Issue:
12(30)
Published: Aug. 13, 2024
Abstract
Recently,
all‐inorganic
halide
double
perovskites
(DPs)
with
a
chemical
formula
of
Cs
2
B
I
III
X
6
have
been
emerging
as
shinning
star
to
be
used
in
modern
optoelectronic
devices,
due
their
unique
advantages
such
environmentally
friendly,
high
absorption
coefficient,
low
trap
densities,
tunable
bandgap,
variable
constituent
elements
and
valences
states
through
or
sites
engineering.
In
this
review,
first,
the
impact
cation
doping
on
electronic
structure
optical
properties
DPs
are
systematically
overviewed,
which
cover
several
key
issues
including
interconversion
between
direct
indirect
band
gaps,
enhancement
light
absorption,
promotion
exciton
localization,
elucidation
energy
transfer
mechanisms,
regulation
defect
density
improvement
both
stability
luminescence
efficiency.
Subsequently,
state‐of‐the‐art
research
activities
regarding
interesting
device
applications
discussed,
light‐emitting
diodes,
anticounterfeiting
encryption,
X‐ray
scintillators,
thermometry.
Finally,
existing
difficulties,
prospects,
directions
field
proposed.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 13, 2024
Abstract
Synthesis
of
color‐tunable
ultralong
room
temperature
phosphorescence
(RTP)
crystals
with
multilevel
stimuli‐responsive
properties
is
highly
desirable
due
to
their
tremendous
application
prospects
but
has
rarely
been
explored.
Herein,
a
2D
organic–inorganic
metal‐halide
hybrid
(ABA
2
CdCl
4
)
originally
designed
and
synthesized
efficient
blue
fluorescence
green
RTP
through
Cd
induced
heavy
atom
effect.
Due
the
improved
intermolecular
interactions
enhanced
light
absorption,
high
efficiency
up
34%
achieved
in
ABA
4.
With
as
prototype,
Mn
2+
‐doping
strategy
successfully
employed
construct
multicomponent
material
wide‐tunable
property
response
external
stimulus
such
time,
light.
More
importantly,
pairs
are
formed
‐doped
,
which
observed
hybrids
for
first
time.
thermal
assisted
energy
transfer
from
triplet
excitons
(organic
unit)
pairs,
thermally
activated
emission
tunable
colors
between
270
333
K
easily
realized,
showing
highest
sensitivity
against
reported
so
far.
By
virtue
above
advantages,
materials
applied
information
storage
sensors.
The
work
promotes
development
multi‐stimuli
responsive
systems
based
on
metal
halides.
