Journal of the American Ceramic Society,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 27, 2025
ABSTRACT
Recent
advances
in
inorganic
negative
thermal
expansion
(NTE)
materials
have
highlighted
their
potential
for
multifunctional
applications,
yet
challenges
remain
optimizing
luminescent
properties
practical
use.
Based
on
Y
2
W
3
O
12
:Tb
3+
/Eu
NTE
ceramics,
we
present
a
thermally
regulated
optical
encoding
and
encryption
approach.
Under
254
nm
UV
excitation,
the
distinctive
high‐temperature
enhancement
effect
of
red
emission
quenching
phenomenon
green
were
discovered
these
enabling
an
effective
temperature‐controlled
color
change
phenomenon.
Optical
information
readout
realized
through
synergistic
modulation
light
heat,
decoding
process
multivariate
codes
alphabets
at
high
temperatures
was
accomplished.
The
accomplished
by
modulating
Tb
doping
concentration
ratio
regulating
ceramics
over
wide
range.
Furthermore,
ceramic
demonstrates
temperature
range
363‒603
K
sensing
effect.
This
offers
research
idea
achieving
coding
sensing.
Journal of Materials Chemistry C,
Journal Year:
2024,
Volume and Issue:
12(29), P. 11149 - 11156
Published: Jan. 1, 2024
Tunable
valence
state
and
scintillation
properties
from
Ce-doped
gadolinium
aluminoborosilicate
glass
scintillators
for
high-energy
physics
applications.
Advanced Optical Materials,
Journal Year:
2024,
Volume and Issue:
12(16)
Published: Feb. 14, 2024
Abstract
Scintillators
with
high
light
yield,
spatial
resolution,
and
detection
sensitivity
are
desirable
for
X‐ray
imaging.
Howerer,
it
remains
challenging
to
improve
the
yield
radiation
capability
of
alkali
metal
rare‐earth
fluoride
(ALnF
4
).
Herein,
a
type
Cu
2+
ion
heterovalent
co‐doped
LiLuF
:Tb,Cu
microcrystalline
scintillation
material
persistent,
thermostimulated
luminescence
is
obtained
by
defect
engineering.
The
codoping
strategy
not
only
increases
radioluminescence
(RL)
intensity,
but
also
introduces
more
carrier
traps
in
enhance
long‐afterglow
thermoluminescence
intensity
:Tb
microcrystals.
After
doping
3
mol%
ions,
RL
efficiency
increased
88.61%,
limit
reaches
2.7928
nGy·s
‒1
.
This
detectivity
considerably
lower
than
medical
imaging
requirements
(5.5
µGy·s
Furthermore,
large‐area
flexible
film
dimensions
30
×
cm
2
prepared
achieve
resolution
22
LP
mm
−1
@MTF(modulation
transfer
function)
=
0.2.
Besides,
this
enables
curved
objects
stores
optical
information
>48
h.
work
provides
paradigm
improving
fluorides
crystal
engineering,
enriches
extended
applications.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 6, 2024
Abstract
The
scintillator
is
the
most
crucial
component
in
high‐energy
ray
detection
system.
available
scintillators
suffer
from
insurmountable
drawbacks
including
poor
shaping
ability
for
single
crystal
and
ceramic
low
efficiency
glass.
Here,
a
glass
composite
proposed
congruent
crystallization
system
which
possesses
both
excellent
processability
high
scintillating
yield.
It
can
be
fabricated
into
diverse
shapes
sizes
bulk
tiny
fiber.
Benefitting
unique
compositing
combination
with
ratio,
exhibits
giant
light
yield
of
≈26,000
photons
per
MeV.
practical
application
X‐ray
imaging
demonstrated
spatial
resolution
12
l
p
mm
−1
achieved.
Furthermore,
fiber
derived
detector
built
remote
micro‐area
realized.
These
findings
not
only
represent
novel
design
concept
development
but
also
suggest
great
step
expanding
scope
scintillators.
ACS Applied Electronic Materials,
Journal Year:
2024,
Volume and Issue:
6(6), P. 4223 - 4231
Published: May 17, 2024
There
is
a
growing
urgency
to
develop
large-sized
organic
scintillator
crystal
materials
with
excellent
responsivity
and
tunable
photophysical
properties
meet
the
demand
of
diverse
industrial
medical
applications.
Here,
thermal
field-elevating
Bridgman
method
was
used
grow
series
(⦶15
mm
×
60
mm)
conjugated
molecules
(anthracene,
tetracene,
pentacene,
chrysene,
picene)-doped
p-terphenyl
crystals,
achieving
luminescence
from
360
680
nm
under
X-ray
radiation.
The
results
indicate
that
pure
possesses
fast
decay
lifetime
2.36
ns,
picene-doped
exhibits
an
extremely
low
detection
limit
45.2
nGy
s–1.
We
also
obtained
insights
into
analysis
energy
transfer
interactions
between
host
dopants
through
experimental
investigations
theoretical
calculations.
This
work
provides
efficient
strategies
for
designing
properties.
