The Journal of Physical Chemistry Letters,
Journal Year:
2025,
Volume and Issue:
unknown, P. 4828 - 4834
Published: May 8, 2025
Phosphors
that
exhibit
photostimulated
luminescence
(PSL),
i.e.,
photostimulable
phosphors,
possess
intrinsic
memory.
This
property
has
been
leveraged
historically
in
optical
sensors
and
imaging
devices
more
recently
toward
computing.
Heretofore,
it
was
unclear
whether
all-optical
PSL
effectively
manifests
at
very
low
temperatures.
Herein
we
characterized
the
charging
discharging
kinetics
of
an
ideal
two-level
phosphor
(RbCdF3:Mn)
from
ambient
to
cryogenic
temperatures
(11
K).
While
persists
temperatures,
efficiency
decreases
significantly.
The
inhibition
is
quantitatively
described
by
using
adapted
model
incorporating
a
weakly
bound
(31
meV)
excitonic
state.
When
extended
include
high-temperature
thermal
ionization
effects,
charge/discharge
anti-thermal
quenching
are
with
high
fidelity.
can
be
describe
other
persistent
phosphors
luminescent
electron
donor
(e.g.,
Bi3+,
Pr3+,
Cr3+,
Mn2+).
Advanced Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 20, 2025
Abstract
Rare‐earth
afterglow
materials,
with
their
unique
light‐storage
properties,
show
great
promise
for
diverse
applications.
However,
broader
applicability
is
constrained
by
challenges
such
as
poor
solvent
compatibility,
limited
luminescent
efficiency,
and
monochromatic
emissions.
In
this
study,
these
limitations
are
addressed
blending
ZnS
various
rare‐earth
phosphors
including
(Sr
0.75
Ca
0.25
)S:Eu
2+
;
SrAl
2
O
4
:Eu
,
Dy
3+
Sr
MgSi
7
to
modulate
deep
trap
mechanisms
significantly
enhance
both
the
light
capture
capabilities.
Using
electrospinning,
a
large‐area
(0.4
m
×
3
m)
film
successfully
fabricated
tunable
colors
an
extended
duration
exceeding
30
h.
This
demonstrates
thermoluminescence,
enabling
potential
integration
into
fire‐rescue
protective
clothing
enhanced
emergency
visibility.
greenhouse
settings,
it
effectively
supports
chlorophyll
synthesis
optimizes
conditions
plant
growth
over
24‐h
cycle.
For
tunnel
garage
applications,
captures
stores
from
vehicle
headlights
at
distances
of
up
70
meters.
The
scalability
cost‐effectiveness
underscore
its
considerable
real‐world
applications
across
multiple
fields,
marking
significant
advancement
in
sustainable
illumination
technology.
ACS Applied Materials & Interfaces,
Journal Year:
2024,
Volume and Issue:
17(2), P. 3587 - 3596
Published: Dec. 31, 2024
Persistent
phosphor
has
emerged
as
a
promising
candidate
for
information
storage
due
to
rapid
accessibility
and
low-energy
requirements.
However,
the
low
capacity
limited
its
practical
application.
Herein,
we
skillfully
designed
developed
NaGdGeO4:Pb2+,Tb3+
stimulated
by
trace
doped
Sm3+.
As
expected,
this
demonstrates
larger
carrier
than
traditional
commercial
SrAl2O4:Eu2+,Dy3+
phosphors
superstrong
thermostimulated
luminescence
(TSL)
that
is
three
times
greater
photoluminescence
(PL)
intensity
(PL
efficiency,
17.3%).
A
mechanism
of
enhanced
controllable
TSL
proposed
based
on
electron-hole
defect
pair
structure.
We
further
present
high-throughput
optical
data
recording
in
five
dimensions
single
fluorescent
film
layer.
The
findings
described
here
provide
not
only
universal
approach
constructing
materials
but
also
new
paradigm
future
generation
technology.
Journal of Materials Chemistry C,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
A
new
type
of
niobate
perovskite
structure
Sr
4
GaNbO
8
:Mn
4+
has
been
prepared
by
us,
which
is
different
from
previous
compounds
and
excellent
relative
absolute
sensitivities
as
well
good
repeatability.
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 3, 2025
Abstract
Optimizing
charge
carrier
storage
in
trap‐controlled
halide
perovskites
poses
a
significant
challenge,
particularly
due
to
the
varying
electronic
properties
and
trap
dynamics
across
temperature
range
from
≈100
400
K.
This
dependence
affects
both
efficiency
of
generation
their
retention.
In
this
study,
substantial
advancements
performance
zirconium
stannum
are
reported
through
targeted
defect
engineering.
By
modulating
composition
Cs
2
Sn
1‐x
Zr
x
Cl
6
incorporating
dopants
Cr
3+
,
Ga
Bi
Te
4+
remarkable
enhancements
X‐ray
triggered
capacity
realized.
Notably,
ZrCl
doped
with
or
exhibits
three
fold
increase
100
300
K,
significantly
outperforming
state‐of‐the‐art
BaFBr(I):Eu
2+
red
afterglow
Y
O
S:Eu
phosphor.
The
:yTe
demonstrates
over
40
times
greater
wide
K
achieves
low
detection
limit
99.16
nGy
for
dosimetry
applications.
Furthermore,
:0.03Te
exceptional
persistent
luminescence
lasting
14
h
at
180
295
research
underscores
high‐performance
capabilities
engineered
perovskites,
paving
way
application
advanced
technologies
temperatures.
Advanced Optical Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 18, 2025
Abstract
Recently,
chalcogenides
with
layered
structures
exhibit
promising
applications
in
the
fields
of
information
chaos
processing
and
compilation
remodeling,
yet
facile
synthesis
their
microcrystals
multi‐temporal
multi‐modal
luminescence
remains
a
major
challenge.
Herein,
competitive
phase
transition
to
generate
orderly
NaYS
2
is
achieved
by
lattice
reconstruction
introduction
S
2−
occupying
unique
anionic
site
non‐vacuum
sulfur‐rich
environment,
revealing
crucial
role
transitions
regulating
material
structure
properties.
Simultaneous
photoinduced
luminescent
chromism
photo‐stimulated
are
attained
introducing
Pr
3+
.
Interestingly,
broadband
long‐wavelength
visible
afterglow
emission
4f
1
5d
cluster
state
reversible
temporary
change
upconversion
from
orange
green
narrowband
occurs
under
continuous
980
nm
excitation,
which
attributed
ordered
polarization
YS
6
layer
injection
defects.
Furthermore,
integrating
long‐lived
down‐conversion
relatively
short‐lived
up‐conversion
‐doped
,
multilevel
dynamic
optical
anti‐counterfeiting
platform
constructed
based
on
transient
long
luminescence.
This
work
implements
2D
structure,
providing
new
model
tunable
space‐time
resolved
for
spatiotemporal
optoelectronic
multiplexing,
applicable
large‐capacity
encryption,
data
storage,
biosensing.
Abstract
Photochromic/thermochromic
materials
face
challenges
in
practical
applications
due
to
limited
stability
and
single‐mode
responses.
Herein,
a
strategy
is
presented
achieve
both
highly
stable
photochromism
thermochromism
single‐phase
Cs₂ZrCl₆
halide
perovskite
through
trap
energy
level
manipulation
via
Bi
3
⁺
doping
thermal
recrystallization.
Strikingly,
the
synthesis
of
this
allochroic
expeditious,
requiring
only
≈10
s
co‐precipitation
method.
creates
unique
defects
with
broad
depth
distribution,
resulting
photochromic
properties.
Upon
UV
irradiation
(254
or
365
nm),
color
Cs₂ZrCl₆:0.02Bi
changes
from
white
pink,
which
can
be
physically
visible
naked
eye
luminance
≈50
cd
m
−
2
maintained
>20
days
under
ambient
light.
Additionally,
thermochromic
response
observed,
photoluminescence
shifting
blue
cyan
after
being
kept
at
523
K,
associated
≈20
nm
redshift
emission
band.
These
dual
properties
enable
potential
use
for
multimodal
information
storage
advanced
anti‐counterfeiting
applications.
This
work
not
introduces
novel
capabilities
but
also
provides
new
insights
into
design
strategic
engineering.
