Characterization of Cs2AgInCl6: Bridging Optical and Electrical Properties for Advanced Optoelectronic Applications
Applied Organometallic Chemistry,
Journal Year:
2025,
Volume and Issue:
39(2)
Published: Jan. 20, 2025
ABSTRACT
Lead‐free
double
perovskites,
such
as
Cs
2
AgInCl
6
,
represent
a
promising
class
of
materials
for
optoelectronic
applications
due
to
their
favorable
properties
and
environmental
sustainability.
This
work
focuses
on
the
synthesis
comprehensive
characterization
employing
range
techniques
including
X‐ray
diffraction
(XRD)
structural
verification,
thermogravimetric
analysis
(TGA)
assess
thermal
stability,
UV–visible
absorption
measurements
determine
optical
bandgap
energy
3.32
eV.
Additionally,
we
explore
photoluminescence
(PL)
decay
elucidate
luminescent
compound.
Complex
impedance
are
performed
under
both
blue
red
light
investigate
electrical
behavior,
revealing
two
distinct
conduction
mechanisms:
overlapping
large–polaron
tunneling
(OLPT)
nonoverlapping
small–polaron
(NSPT).
We
analyze
implications
our
findings
current–voltage
(I–V)
behavior
trap
density,
further
supported
by
Raman
spectroscopy
illumination
conditions.
The
combined
insights
from
characterizations
highlight
potential
in
applications,
paving
way
its
use
advanced
devices.
Language: Английский
Efficient Emission of Lanthanide Ion in Double Perovskite Nanocrystals Enabled by Synergistic Effect of Energy Level Modulation and Crystal‐Field Engineering
Songchao Bai,
No information about this author
Gencai Pan,
No information about this author
Chao Li
No information about this author
et al.
Laser & Photonics Review,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 8, 2025
Abstract
Trivalent
lanthanide
(Ln
3+
)
ions
with
ladderlike
4f
energy
levels,
as
dopants,
can
endow
luminescent
matrix
more
diverse
optoelectronic
properties,
and
a
wider
application.
However,
their
intensity
is
usually
limited
by
the
parity
forbidden
transition
rule
level
mismatch
between
host
dopant.
Herein,
Ln
doped
Cs
2
Na
1‐x
K
x
Y
0.97
Sb
0.03
Cl
6
nanocrystals
(NCs)
are
prepared,
photoluminescence
quantum
yields
of
all
samples
visible
near‐infrared
emissions
have
surprisingly
reached
over
50%,
therein,
value
Tb
0.6
0.4
NCs
dramatically
up
to
83.3%,
which
new
breakthrough
in
field
lead‐free
perovskite
NCs.
From
first
principles
calculations,
crystal
structure,
spectroscopic
analysis,
this
benefits
from
synergistic
effect
deformation
levels
provided
doping
environment
distortion
induced
+
doping.
That
is,
localized
causes
splitting
ions,
resulting
effective
transfer
efficiency
simultaneously
introducing
opposite
odd
parity,
breaking
rule,
promoting
luminescence
ions.
This
work
will
open
route
develop
efficient
materials.
Language: Английский
Tailoring the Emission Properties of Cs2NaLuCl6 for Anti‐Counterfeiting, X‐Ray Scintillation, and Night Vision Applications
Xiu‐Xian Guo,
No information about this author
Zi‐Lin He,
No information about this author
Jing‐Hua Chen
No information about this author
et al.
Advanced Optical Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 8, 2025
Abstract
The
ever‐increasing
counterfeiting
issues
have
triggered
a
research
upsurge
in
multi‐modal
fluorescence
anti‐counterfeiting
materials.
All
inorganic
metal
halide
double
perovskites
possess
the
advantages
of
facile
preparation
procedures
and
high
thermal
stability,
which
also
provide
suitable
doping
sites
to
regulate
emission
behavior
highlight
potential
for
serving
as
Herein,
series
Sb
3+
,
Er
Yb
solely
or
codoped
Cs
2
NaLuCl
6
are
successfully
prepared,
optical
properties
dependent
on
ratio
lanthanide
ions
(Ln
).
Notably,
due
participation
energy‐transfer
cross‐relaxation
processes,
tri‐doped
(0.3%Sb
‐20%Er
‐50%Yb
‐Cs
)
shows
luminescence
responses
excitation
sources
with
different
photon
energies,
is
employed
construct
patterns
by
combining
.
Besides
behavior,
NIR
from
can
be
used
night‐vision
device.
Remarkably,
20%Er
‐doped
an
excellent
light
yield
30767
photons
MeV
−1
low
limit
detection
(LoD)
108
nGy
s
highlighting
X‐ray
imaging.
This
work
provides
rational
route
design
multi‐functional
materials
that
anti‐counterfeiting,
night
vision,
Language: Английский
In Situ Growth of Lead‐Free Double Perovskite Micron Sheets in Polymethyl Methacrylate for X‐Ray Imaging
Jindou Shi,
No information about this author
Zeyu Wang,
No information about this author
Luxia Xu
No information about this author
et al.
Advanced Optical Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: July 3, 2024
Abstract
Pb‐free
double‐perovskite
(DP)
scintillators
are
highly
promising
candidates
for
X‐ray
imaging
because
of
their
superior
optoelectronic
properties,
low
toxicity,
and
high
stability.
However,
practical
applications
require
DP
crystals
to
be
ground
mixed
with
polymers
produce
scintillator
films.
Grinding
can
compromise
film
uniformity
optical
thereby
affecting
resolution.
In
this
study,
an
in
situ
fabrication
strategy
is
proposed
facilitate
the
crystalline
growth
Cs
2
AgIn
x
Bi
1‐x
Cl
6
micron
sheets
polymethyl
methacrylate
a
single
step.
By
adjusting
3+
/Bi
ratio,
0.9
0.1
/PMMA
composite
films
(CFs)
excellent
scintillation
properties
obtained,
including
light
yield
up
32000
photons
per
MeV
detection
limit
87
nGy
air
s
−1
.
This
also
enabled
production
large
CFs,
which
demonstrated
favorable
flexibility
stability,
fabricating
products
advanced
eligibility
commercial
applications.
The
CFs
exhibited
outstanding
performances
imaging,
producing
high‐resolution
structures
providing
new
avenue
development
materials
fields
such
as
medical
safety
detection.
Language: Английский
Lead-Free Halide Double Perovskites for Sustainable Environmental Applications
Chemical Physics Impact,
Journal Year:
2024,
Volume and Issue:
9, P. 100770 - 100770
Published: Nov. 7, 2024
Language: Английский
Near-Infrared and Visible Dual-Band Self-Trapped Exciton Emissions from Li+-Doped Cs2NaScCl6 Double Perovskites
Yuhan Liu,
No information about this author
Datao Tu,
No information about this author
Mingjie Yang
No information about this author
et al.
ACS Energy Letters,
Journal Year:
2025,
Volume and Issue:
unknown, P. 2150 - 2159
Published: April 4, 2025
Language: Английский
Sb3+ doped Cs3YCl6 metal halides with highly efficient broad-band green emission for light-emitting diode and X-ray imaging
Huwei Li,
No information about this author
Long Tian,
No information about this author
Qingxing Yang
No information about this author
et al.
Science China Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 15, 2025
Language: Английский
Machine learning screening and DFT calculations for exploring Cs2Ag0.75X0.25BiCl6 (X=Na, K, Rb) double perovskites as underwater photovoltaic materials
Changcheng Chen,
No information about this author
Han Zhao,
No information about this author
Yaxin Xu
No information about this author
et al.
Solar Energy Materials and Solar Cells,
Journal Year:
2025,
Volume and Issue:
289, P. 113674 - 113674
Published: May 2, 2025
Language: Английский
Defects in Ligand‐Exchange‐Passivated Mixed‐Halide Double Perovskite Nanocrystals for X‐ray Imaging
Gaoyuan Xing,
No information about this author
Endian Cui,
No information about this author
Xiangyang Yuan
No information about this author
et al.
Laser & Photonics Review,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 5, 2024
Abstract
Nanostructured
scintillators,
renowned
for
their
exceptional
miniaturization
and
portability,
are
typically
designed
with
homogeneous
dopant
ion
concentration
profiles.
While
these
profiles
facilitate
consistent
optical
properties,
they
may
pose
challenges
in
terms
of
compromising
light
emission
intensity
overall
scintillation
efficiency.
A
pressing
issue
the
field
X‐ray
flat‐panel
minidetectors
is
lack
specific
innovative
strategies
to
significantly
enhance
radioluminescence
capabilities,
which
has
hindered
further
advancements.
This
research
showcases
an
efficacious
strategy
synthesizing
ligand‐exchange‐passivated
mixed‐halide
double
perovskite
nanocrystals
(NCs)
tailored
remarkable
capabilities.
The
composition
fine‐tuned
via
anion
exchange
between
Bi
3+
Tb
‐doped
Cs
2
AgInCl
6
NCs
potassium
bromide
(KBr).
Additionally,
initial
oleic
acid
ligands
substituted
1‐dodecanethiol
(1‐DT),
effectively
compensating
inherent
halogen
vacancies
mitigating
halide
migration.
underlying
passivation
mechanism
elucidated
through
a
comprehensive
approach
that
combined
spectroscopic
experiments
theoretical
calculations.
Consequently,
fabricated
transparent
scintillator
films,
incorporating
synthesized
NCs,
exhibit
high
yield
≈20
952
photons
MeV
−1
,
sensitive
detection
limit
207.5
nGy
air
s
spatial
resolution
8.1
lp
mm
unparalleled
stability
under
prolonged
irradiation.
Language: Английский