Advanced Optical Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 9, 2024
Abstract
Development
of
ultra‐broadband
visible‐to‐near‐infrared
(VIS‐NIR)
luminescent
materials
is
a
challenging
but
rewarding
endeavor,
as
they
are
highly
desirable
for
number
applications
in
photonics,
optoelectronics,
and
biological
sciences.
Nevertheless,
to
date,
rare
earth‐doped
phosphors
that
can
be
efficiently
excited
by
blue
light
produce
broadband
emission
the
VIS‐NIR
regions
remain
scarce.
In
this
study,
series
Ce
3+
‐doped
Ba
3
M
4
O
9
(M
=
Sc,
Lu,
Y)
designed
based
on
low‐coordination
crystallographic
lattice
engineering.
Among
these
materials,
Y
:Ce
produces
continuous
ultra‐wide
(λ
em
660
nm)
range
500–950
nm
under
410
excitation.
This
wavelength
longest
among
those
observed
⁺‐doped
oxide
materials.
Structural
refinement,
theoretical
calculation,
spectral
analysis
demonstrate
attributed
occupying
multiple
distorted
octahedral
sites
.
Several
strategies
employed
enhance
luminescence
intensity
thermal
stability
material,
including
use
carbon
paper
coating,
incorporation
co‐solvents,
addition
GeO₂
or
ZrO₂.
Furthermore,
as‐prepared
multifunctional
white
light‐emitting
diodes
(WLED),
night
vision,
fluorescent
thermometers.
study
offers
insights
into
design
Ce3+‐doped
Advanced Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 13, 2025
Abstract
Halide
perovskites
(HPs),
emerging
as
a
noteworthy
class
of
semiconductors,
hold
great
promise
for
an
array
optoelectronic
applications,
including
anti‐counterfeiting,
light‐emitting
diodes
(LEDs),
solar
cells
(SCs),
and
photodetectors,
primarily
due
to
their
large
absorption
cross
section,
high
fluorescence
efficiency,
tunable
emission
spectrum
within
the
visible
region,
tolerance
lattice
defects,
well
adaptability
solution‐based
fabrication
processes.
Unlike
luminescent
HPs
with
band‐edge
emission,
trivalent
rare‐earth
(RE)
ions
typically
emit
low‐energy
light
through
intra‐4f
optical
transitions,
characterized
by
narrow
spectra
long
lifetimes.
When
fused,
cooperative
interactions
between
REs
endow
resulting
binary
composites
not
only
properties
inherited
from
parent
materials
but
also
introduce
new
attributes
unattainable
either
component
alone.
This
review
begins
fundamental
characteristics
REs,
followed
particular
focus
on
impact
electronic
structures
associated
energy
transfer
The
advanced
synthesis
methods
utilized
prepare
HPs,
RE‐doped
compounds,
are
overviewed.
Furthermore,
potential
applications
summarized
across
diverse
domains,
high‐fidelity
anticounterfeiting,
bioimaging,
LEDs,
photovoltaics,
photodetection,
photocatalysis,
conclude
remaining
challenges
future
research
prospects.
Advanced Optical Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 28, 2025
Abstract
Multifunctional
optical
materials
with
temperature
sensing
and
anti‐counterfeiting
properties
play
an
essential
role
in
the
commercial
applications.
Herein,
Mn
2+
/Nd
3+
co‐doped
Cs
2
AgInCl
6
(CAIC)
lead‐free
double
perovskites
(DPs)
is
synthesized
through
a
hydrothermal
method,
which
exhibits
visible
to
near‐infrared
(NIR)
luminescence
reversible
photochromic
from
yellowish
dark
purple.
The
mechanism
investigations
on
photoluminescence
phenomena
reveal
that
incorporation
of
ions
not
only
acts
as
intermediary
energy
transfer
process
host
exciton
Nd
ions,
but
also
plays
pivotal
response.
temperature‐dependent
luminescence,
attributed
contrasting
thermal
responses
enables
precise
via
fluorescence
intensity
ratio
method.
In
addition,
integration
red
emission,
NIR
single
CAIC:
DPs,
offers
multilevel
strategy.
multifunctional
DPs
would
open
up
new
avenues
for
advanced
applications,
particularly
realms
security
anti‐counterfeiting.
Advanced Optical Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 4, 2025
Abstract
Low‐dimensional
metal
halides
have
emerged
as
promising
anti‐counterfeiting
materials.
However,
achieving
a
multi‐mode
and
multi‐color
system
in
remains
challenging.
In
this
study,
copper‐halide
(TBP)
2
Cu
4
Br
6
(TBP
+
=
C
16
H
36
P
)
single
crystals
are
synthesized
using
cooling
crystallization
method,
which
exhibits
efficient
dual‐band
emissions
(542
708
nm),
large
Stokes
shifts
(282
330
high
photoluminescence
quantum
yield
(PLQY)
of
92.7%
for
542
nm.
These
exceptional
properties
attributed
to
the
unique
0D
structure
crystals,
facilitates
formation
two
different
self‐trapped
excitons
(STEs).
Furthermore,
based
on
,
digital
integrated
is
designed
with
Morse
code
information
encryption,
demonstrating
applications
security
anti‐counterfeiting.
This
work
not
only
illustrates
an
emitter
copper
but
also
paves
way
systems.
Advanced Materials Technologies,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 9, 2025
Abstract
Lead‐free
double
perovskites
(LFDP)
have
attracted
considerable
attention
due
to
their
remarkable
optoelectronic
characteristics,
which
include
tunable
bandgaps
spanning
the
entire
visible
spectrum,
high
photoluminescence
quantum
yields
(PLQY),
and
wide
emission
bandwidths.
The
incorporation
of
transition
metal
ions
into
lead‐free
perovskites,
as
an
efficient
method
for
tailoring
optical
properties,
is
crucial
both
foundational
research
practical
applications
in
devices
such
light‐emitting
diodes
(LEDs),
anti‐counterfeiting,
temperature
sensors,
X‐ray
scintillators.
In
this
review,
recent
progress
design
ion‐doped
summarized,
briefly
introduce
strategies
effective
doping
several
representative
perovskites.
manipulation
properties
through
ion
doping,
focusing
on
enhanced
stability,
increased
luminescent
efficiency,
tuning
bands,
luminescence
lifetimes
are
highlighted.
conclusion,
challenges
perspectives
dynamic
area
addressed.
Inorganic Chemistry Frontiers,
Journal Year:
2024,
Volume and Issue:
11(18), P. 6146 - 6155
Published: Jan. 1, 2024
The
codoping
of
Ln
3+
(Ln
=
Yb,
Nd)
in
the
Cs
2
NaInCl
6
:Sb
host
not
only
produces
PL
components
from
visible
to
near-infrared
regions,
but
also
achieves
a
high
PLQY
∼48.95%.
Chemical Science,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 1, 2024
This
research
elucidates
the
theoretical
underpinnings
of
tunable
luminescence
in
Mn
2+
-doped
0D
hybrid
perovskite
C
6
H
14
N
2
CdBr
4
,
paving
way
for
advanced
anti-counterfeiting
materials
with
precise
color
regulation
capabilities.
Inorganic Chemistry,
Journal Year:
2024,
Volume and Issue:
63(34), P. 16047 - 16055
Published: Aug. 14, 2024
Low-temperature
anticounterfeiting
technologies
play
a
crucial
role
in
ensuring
the
authenticity
and
integrity
of
temperature-sensitive
products
such
as
vaccines,
pharmaceuticals,
food
items.
In
this
work,
low-temperature
route
based
on
differentiated
photoluminescence
(PL),
PersL,
thermally
stimulated
luminescence
(TSL)
behaviors
metal
halide
perovskite,
pure
CsCdCl3,
CsCdCl3:10%
Te4+
is
proposed.
The
CsCdCl3
host
exhibits
pronounced
color
shifts,
encompassing
PL,
TSL
behaviors,
ranging
from
blue
to
yellow
orange
temperature
rises
100
K
room
temperature.
This
change
attributed
luminous
center
(from
D3d
octahedron
C3v
octahedron).
Conversely,
addition
inhibits
matrix
emission,
maintains
characteristic
emission
Te4+,
regulates
trap
distribution
at
low
TL
intensity.
work
highlights
significant
promise
phosphors
innovative
technologies,
especially
for
cold-chain
vaccine
safety
monitoring.
