Abstract
Rare‐earth
halide
double
perovskites
(DPs)
have
attracted
extensive
attention
due
to
their
excellent
optoelectronic
performance.
However,
the
correlation
between
luminescence
performance,
crystal
structure,
and
temperature,
as
well
inherent
energy
transfer
mechanism,
is
not
understood.
Herein,
Lanthanide
ions
(Ln
3+
:
Nd
or
Dy
)
co‐dopants
are
incorporated
into
Sb
doped
Cs
2
NaYbCl
6
DPs
construct
(ET)
models
reveal
effects
of
temperature
levels
rare
earth
on
ET.
The
different
excited
state
structures
‐Ln
at
temperatures
relative
positions
synergistically
determine
physical
processes
luminescence.
These
multi‐mode
luminescent
materials
exhibit
good
performance
in
anti‐counterfeiting,
NIR
imaging,
sensing.
This
work
provides
new
insights
mechanism
related
photophysical
process.
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Сен. 9, 2024
Abstract
Realizing
ultra‐efficient
broadband
near‐infrared
(NIR)
luminescence,
especially
under
blue
light
excitation,
remains
an
enormous
challenge
in
lead‐free
metal
halides.
Herein,
the
efficient
NIR
emission
excitation
is
achieved
Sb
3+
‐doped
0D
(ETPP)
2
ZnCl
4
x
Br
4‐4
(
=
0–1)
(ETPP
+
(Ethyl)triphenylphosphonium)
through
coordination
structure
modulation
and
halogen
substitution.
Compared
with
visible
of
Sb(III)‐based
compounds,
4x
4‐4x
shifts
to
region
due
large
excited
state
lattice
distortion.
Parallelly,
bands
gradually
shift
from
376
450
nm
as
replaces
Cl,
can
further
702
763
nm.
Thus,
at
a
record
luminous
efficiency
55.4%
be
compounds.
Moreover,
large‐scale
synthesis
technique
ZnBr
:
phosphors
room
temperature
developed
this
compound
exhibits
impressive
thermal
chemical‐stabilities.
Finally,
high‐performance
light‐emitting‐diode
fabricated
by
combining
commercial
chip
:10%Sb
phosphors,
which
shows
most
advanced
photoelectric
(17.8%)
output
power
(67.7
mW)
as‐fabricated
device
demonstrated
applications
night
vision
biomedical
imaging.
Advanced Optical Materials,
Год журнала:
2024,
Номер
12(11)
Опубликована: Янв. 4, 2024
Abstract
Recently,
zero‐dimensional
(0D)
metal
halides
with
highly
efficient
tunable
emission
have
shown
broad
prospects
in
the
field
of
anti‐counterfeiting.
However,
limited
colors
and
low
resolution,
as
well
severe
thermal
quenching
self‐trapped
excitons,
greatly
constrained
their
applications.
In
this
study,
a
high
stability
compound
by
precisely
manipulating
multi‐exciton
within
Sb‐doped
hybrid
manganese
chloride
is
developed,
which
exhibits
three
(green,
orange,
yellow).
It
discovered
that
significant
color
changes
low‐temperature
range.
Optical
temperature
sensing,
anti‐counterfeiting,
information
encryption
models
based
on
are
successfully
designed.
This
research
proposes
an
effective
strategy
for
designing
novel
eco‐friendly
anti‐counterfeiting
sensing
materials,
paving
way
optical
multi‐key
encryption‐decryption
Inorganic Chemistry,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 13, 2025
Low-dimensional
organic-inorganic
hybrid
metal
halide
materials
have
attracted
widespread
attention
due
to
their
excellent
and
tunable
photoelectric
properties.
However,
the
low
intrinsic
photoluminescence
quantum
yields
(PLQYs)
limit
further
applications
in
optoelectronic
devices.
Here,
we
report
synthesis
of
lead-free
zero-dimensional
indium
chloride
crystals,
(FA)3InCl6:
xSb3+,
with
strong
red-light
emission
through
controlled
Sb3+
doping.
The
optimal
composition,
20.16%
Sb3+,
exhibits
PLQY
up
30%
emits
red
broadband
light
centered
at
690
nm.
enhancement
doped
samples
was
investigated
by
combining
temperature-dependent
wavelength-dependent
spectra,
revealing
self-trapped
exciton
(STE)
recombination
process.
clear
elucidation
complexation
process
has
provided
a
solid
theoretical
basis
for
optimization
material
properties,
which
is
great
significance
development
new
light-emitting
materials.
Far-red
phosphor-converted
LED
devices
been
constructed
these
demonstrate
stable
efficient
various
voltages,
exhibiting
superior
stability.
This
study
highlights
potential
Sb3+-doped
halides
achieve
demonstrates
single
crystals
indoor
plant
lighting,
infrared
imaging,
photodynamic
therapy
wound
healing.
Journal of Materials Chemistry C,
Год журнала:
2024,
Номер
12(8), С. 2944 - 2952
Опубликована: Янв. 1, 2024
Zero-dimensional
(0D)
organic–inorganic
metal
halide
hybrids
(MHHs)
are
considered
promising
luminescent
materials
due
to
their
unique
“host–guest”
structure
and
tunable
emission
spectrum.
Nanoscale,
Год журнала:
2024,
Номер
16(14), С. 6837 - 6852
Опубликована: Янв. 1, 2024
This
review
summarized
the
optical
performances
of
RE
doped/containing
lead-free
DPs,
which
involve
extension
luminescence
range,
improvement
PLQY,
realization
multi-mode
excitation
and
multi-color
emission.
Advanced Optical Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 24, 2025
Abstract
Achieving
multiple
efficient
emissions
from
a
single
scintillator
material
is
challenging.
This
work
presents
several
Zn
or
Cd‐based
halide
materials
with
tetrahedral
clusters,
which
show
high‐efficiency,
multicolor
emission
scintillating
by
co‐doping
Sb
3
⁺
and
Mn
2
⁺.
In
this
0D
structure,
can
function
as
independent
centers,
producing
green
red
bands,
respectively,
all
photoluminescent
quantum
yields
(PLQYs)
exceeding
70%
for
green,
yellow,
emissions.
Notably,
Ph
M‐Zn:Sb
3+
@Mn
out
of
the
above
compounds
exhibits
PLQY
values
90%
three
color
Furthermore,
it
demonstrates
exceptional
scintillation
performance
under
X‐ray
illumination,
achieving
resolution
18
lp
mm
−1
detection
limit
50.1
nGy
air
S⁻¹,
surpassing
most
commercial
scintillators.
Additionally,
cross‐
independent‐emission
colors
produced
these
varying
excitations
have
been
utilized
to
develop
novel
optical
anti‐counterfeiting
information
storage
applications
high
security.
These
advances
demonstrate
that
significantly
optimize
host
materials,
multifunctional
scintillators
in
variety
technological
applications.
