Advanced Materials Technologies,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 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.
Advanced Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 3, 2024
Abstract
Ultrabright
broadband
near‐infrared
(NIR)
phosphor‐converted
laser
diode
(pc‐LD)
as
a
light
source
is
increasingly
essential
for
improving
the
sensitivity
and
spatial
resolution
of
intelligent
NIR
spectroscopy
technologies.
However,
performance
pc‐LD
greatly
hindered
by
low
external
quantum
efficiency
(EQE)
poor
thermal
resistance
phosphor
materials.
Herein,
highly
stable
phosphor‐in‐ceramic
(PiC)
film
deposited
on
high
conductivity
substrate,
in
which
NIR‐emitting
Ca
3
MgHfGe
O
12
:Cr
3+
incorporated
into
glass‐crystallized
Ga
2
Ge
ceramic
matrix,
along
with
formation
new
type
PiC
composite
material
efficiency,
absorbance,
conductivity,
designed
prepared.
The
obtained
exhibits
an
impressive
EQE
57.7%,
17.1
W
m
−1
K
,
wheel
demonstrates
emission
exceeding
5
when
excited
450
nm
laser.
Finally,
groundbreaking
electrically
driven
device
based
achieves
1.6
output,
enabling
multiple
applications
archaeology
night
vision
imaging.
This
work
paves
way
advancing
sources
diverse
range
photonic
applications.
Light Science & Applications,
Год журнала:
2025,
Номер
14(1)
Опубликована: Янв. 2, 2025
Abstract
Low-dimensional
lead-free
metal
halide
perovskites
are
highly
attractive
for
cutting-edge
optoelectronic
applications.
Herein,
we
report
a
class
of
scandium-based
double
perovskite
crystals
comprising
antimony
dopants
that
can
generate
multiexcitonic
emissions
in
the
ultraviolet,
blue,
and
yellow
spectral
regions.
Owing
to
zero-dimensional
nature
crystal
lattice
minimizes
energy
crosstalk,
different
excitonic
states
be
selectively
excited
by
ultraviolet
light,
X-ray
irradiation,
mechanical
action,
enabling
dynamic
control
steady/transient-state
features
modulating
excitation
modes.
Remarkably,
transparent
exhibits
efficient
white
photoluminescence
(quantum
yield
>97%),
blue
emission
with
long
afterglow
(duration
>9
h),
high-brightness
self-reproducible
violet-blue
mechanoluminescence.
These
findings
reveal
exceptional
capability
low-dimensional
integrating
various
luminescence,
offering
exciting
opportunities
multi-level
data
encryption
all-in-one
authentication
technologies.
Advanced Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 2, 2025
0D
hybrid
metal
halide
(HMH)
luminescent
glasses
have
garnered
significant
attentions
for
its
chemical
diversity
in
optoelectronic
applications
and
it
also
retains
the
skeleton
connectivity
coordination
mode
of
crystalline
counterparts
while
exhibiting
various
physics/chemistry
characteristics
distinct
from
states.
However,
understanding
glass-forming
ability
specific
structural
origins
underpinning
properties
HMH
remains
elusive.
In
this
review,
is
started
solid-liquid
phase
transition
thermodynamic
analysis
HMHs
formed
through
melt-quenching,
summarize
current
compounds
capable
stably
forming
glassy
phases
via
design.
The
characterization
methods
are
further
discussed
highlight
exceptional
transparency,
properties,
glass
crystallization
behaviors.
Moreover,
application
prospects
demonstrated
by
these
been
presented
accordingly
X-ray
detection
imaging,
anti-counterfeiting,
information
encryption.
Finally,
perspective
offered
into
future
development
emerging
family
their
applications.
Advanced Science,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 13, 2025
Multimode
luminescent
materials
exhibit
tunable
photon
emissions
under
different
excitation
or
stimuli
channels,
endowing
them
high
encoding
capacity
and
confidentiality
for
anti-counterfeiting
encryption.
Achieving
multimode
luminescence
into
a
stable
single
material
presents
promising
but
remains
challenge.
Here,
the
downshifting/upconversion
emissions,
color-tuning
persistent
(PersL),
temperature-dependent
multi-color
hydrochromism
are
integrated
Er3+
ions
doped
Cs2NaYbCl6
nanocrystals
(NCs)
by
leveraging
shallow
defect
levels
directed
energy
migration.
The
resulting
NCs
display
strong
static
dynamic
colorful
in
response
to
ultraviolet,
980-nm
laser,
X-ray.
Additionally,
distinct
colors
as
temperature
increases
from
330
430
K.
Surprisingly,
it
also
demonstrates
ability
of
reversible
emission
modal
color
water.
Theoretical
calculations
experimental
characterizations
reveal
that
self-trapped
exciton
state
(STEs),
chlorine
vacancy
defects,
ladderlike
4f
contribute
multimodal
luminescence.
More
importantly,
has
extremely
remarkable
environmental
stability,
which
can
be
stored
air
more
than
18
months,
showing
commercial
prospects.
This
work
not
only
gives
new
insights
lanthanide-based
metal
halide
provides
route
developing
nanomaterials
Advanced Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 29, 2025
Abstract
Light‐emitting
diodes
(LEDs)
based
on
halide
perovskite
nanocrystals
have
attracted
extensive
attention
due
to
their
considerable
luminescence
efficiency,
wide
color
gamut,
high
purity,
and
facile
material
synthesis.
Since
the
first
demonstration
of
LEDs
MAPbBr
3
was
reported
in
2014,
community
has
witnessed
a
rapid
development
performances.
In
this
review,
historical
perspective
is
provided
then
comprehensive
survey
current
strategies
for
high‐efficiency
lead‐based
LEDs,
including
synthesis
optimization,
ion
doping/alloying,
shell
coating
presented.
Then
basic
characteristics
emission
mechanisms
lead‐free
perovskite‐related
emitters
environmentally
friendly
from
standpoint
different
colors
are
reviewed.
Finally,
progress
LED
applications
covered
an
outlook
opportunities
challenges
future
developments
field
provided.
Chemistry of Materials,
Год журнала:
2024,
Номер
36(9), С. 4813 - 4820
Опубликована: Апрель 26, 2024
Chemical
design
of
luminescent
metal
halides
as
high-performance
X-ray
scintillators
is
in
urgent
demand.
Herein,
rare
earth
Eu(II)
was
innovated
a
B-site
cation
to
create
brand-new
halide
scintillators,
and
regulating
bandgap
further
developed
via
organic
molecule
based
on
the
same
anionic
chain
[EuBr3MeOH]nn–,
namely,
[Cat]EuBr3MeOH
[Cat
=
1-butyl-1-methylpiperidinium
(PP14),
1-propyl-1-methylpiperidinium
(PP13),
1-ethyl-3-methylimidazolium
(Emim)].
Owing
smaller
[Emim]Br,
[Emim]EuBr3MeOH
possesses
an
enhanced
light
yield
43,000
±
100
ph
MeV–1
scintillators.
The
conjugated
attribute
Emim+
also
contributes
π–π
stacking,
resulting
more
rigid
structure,
reducing
nonradiative
transition.
scintillator
film
by
using
emanates
spatial
resolution
above
10
lp
mm–1.
This
study
provides
principle
cations
screening
engineering
for
enhancing
property
exemplifies
novel
materials
family
hybrids
potential
Angewandte Chemie International Edition,
Год журнала:
2024,
Номер
63(50)
Опубликована: Авг. 16, 2024
Abstract
Low
dimensional
organic‐inorganic
hybrid
metal
halide
materials
have
attracted
extensive
attention
due
to
their
superior
optoelectronic
properties.
However,
low
photoluminescence
quantum
yields
(PLQYs)
caused
by
parity‐forbidden
transition
hinder
further
application
in
devices.
Herein,
a
novel
yellow‐emitting
PMA
4
Na(In,Sb)Cl
8
(C
7
H
10
N
+
,
)
low‐dimensional
OIMHs
single
crystal
with
PLQY
as
high
88
%
was
successfully
designed
and
synthesized,
originating
from
the
fact
that
doping
of
Sb
3+
effectively
relaxes
strong
spin‐orbit
(SO)
coupling
Jahn‐Teller
(JT)
interaction.
The
as‐prepared
shows
an
efficient
dual
emission
peaking
495
560
nm
at
temperature,
which
are
ascribed
different
levels
3
P
1
→
S
0
transitions
[SbCl
6
]
3−
octahedral
JT
deformation.
Moreover,
wide‐range
luminescence
tailoring
cyan
orange
can
be
achieved
through
adjusting
excitation
energy
temperature
because
flexible
PNIC
lattice.
Based
on
relative
stiff
lattice
environment,
yellow
under
350
light
exhibits
abnormal
anti‐thermal
quenching
400
K
owing
suppression
non‐radiative
transition.
multimode
regulation
enriches
great
potential
field
optoelectronics
such
sensing,
anti‐counterfeiting
WLED
applications.
Inorganic Chemistry Frontiers,
Год журнала:
2024,
Номер
11(12), С. 3607 - 3617
Опубликована: Янв. 1, 2024
Sb
3+
/Sm
co-doping
can
effectively
modulate
the
luminescence
by
adjusting
energy
transfer
in
Cs
2
NaYCl
6
double
perovskites.
Two
minima
excited
state
of
3
P
1
enable
self-trapped
exciton
emission
at
low
temperatures.
Nano Letters,
Год журнала:
2024,
Номер
24(33), С. 10355 - 10361
Опубликована: Авг. 9, 2024
Combining
rare
earth
elements
with
the
halide
perovskite
structure
offers
valuable
insights
into
designing
nonlead
(Pb)
luminescent
materials.
However,
most
of
these
compositions
tend
to
form
zero-dimensional
(0D)
networks
metal-halide
polyhedra,
higher-dimensional
(1D,
2D,
and
3D)
structures
receiving
relatively
less
exploration.
Herein,
we
present
synthesis
optical
properties
Cs