Advanced Photonics Research,
Год журнала:
2024,
Номер
unknown
Опубликована: Июль 10, 2024
The
pursuit
of
lead‐free
alternatives
to
lead
halide
perovskites
has
gained
significant
momentum
due
the
environmental
concerns
associated
with
toxicity.
adverse
effects
on
human
health
and
environment
have
prompted
a
shift
toward
developing
sustainable
eco‐friendly
perovskite
materials
for
various
optoelectronic
devices.
This
is
particularly
vital
in
emerging
technologies
where
play
crucial
role,
such
as
solar
cells,
X‐ray
detectors,
photodetectors,
light‐emitting
diodes
(LEDs),
etc.
Consequently,
it
paramount
understand
fundamental
properties,
synthesis
methods,
structural
characteristics
perovskites.
review
aims
provide
comprehensive
analysis
intricate
relationship
between
structures
properties
perovskites,
shedding
light
their
applications
across
diverse
fields.
focus
environmentally
benign,
high‐performing,
underscores
urgency
significance
research
efforts
driving
development
efficient
technologies.
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.
ACS Energy Letters,
Год журнала:
2024,
Номер
9(4), С. 1587 - 1603
Опубликована: Март 19, 2024
Metal
halide
perovskites
(MHPs)
have
demonstrated
remarkable
performance
with
efficient
luminescence
and
color
tunability,
which
potentially
replace
traditional
luminescent
materials
in
up-to-date
display
technology.
However,
MHPs
still
face
serious
challenges
stability
efficiency
for
applications.
The
ligand
strategy
is
currently
one
of
the
most
effective
approaches
comprehensive
improvement
perovskite
displays
(Pe-displays).
This
paper
reviews
recent
progress
Pe-displays
from
perspective
years,
has
never
been
emphasized
before.
First,
defect
types
are
summarized
to
boost
further
understanding
MHPs.
detailed
strategies
different
site
defects
then
reviewed
purpose
work.
Finally,
outlooks
raised
promote
study
commercialization
next-generation
Pe-displays.
review
comprehensively
focuses
on
that
can
be
widely
extended
applications
emerging
displays.
Advanced Optical Materials,
Год журнала:
2024,
Номер
12(13)
Опубликована: Янв. 31, 2024
Abstract
Lead
halide
perovskites
are
widely
used
and
intensively
studied
in
optoelectronic
devices
due
to
their
superior
properties.
However,
the
toxicity
of
Pb
hinders
industrialization
perovskite
devices.
Sn
has
a
similar
electronic
structure
Pb,
thus
been
as
an
alternative
Pb‐based
optoelectronics
recent
years.
In
this
review,
research
progress
luminescent
properties
synthesis
methods
2D
tin
summarized.
It
is
also
highlight
unique
dual
emission
phenomenon
summarize
several
types
possible
luminous
mechanisms.
At
last,
development
based
light‐emitting
diodes
overviewed,
challenges
oxidative
inhibition
efficiency
improvement
discussed.
This
review
expected
provide
comprehensive
perspective
on
diode
applications
perovskites.
Advanced Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 23, 2024
Abstract
Perovskite
light‐emitting
diodes
(Pero‐LEDs)
have
garnered
significant
attention
due
to
their
exceptional
emission
characteristics,
including
narrow
full
width
at
half
maximum,
high
color
purity,
and
tunable
colors.
Recent
efficiency
operational
stability
advancements
positioned
Pero‐LEDs
as
a
promising
next‐generation
display
technology.
Extensive
research
review
articles
on
the
compositional
engineering
defect
passivation
of
perovskite
layers
substantially
contributed
development
multi‐color
high‐efficiency
Pero‐LEDs.
However,
crucial
aspect
charge
transport
layer
(CTL)
modulation
in
remains
relatively
underexplored.
CTL
not
only
impacts
carrier
injection
balance
but
also
plays
critical
role
passivating
surface,
blocking
ion
migration,
enhancing
crystallinity,
improving
light
extraction
efficiency.
Therefore,
optimizing
CTLs
is
pivotal
for
further
Pero‐LED
performance.
Herein,
this
discusses
roles
categorizes
both
reported
potential
materials.
Then,
various
optimization
strategies
are
presented,
alongside
an
analysis
selection
criteria
high‐performance
Finally,
summary
outlook
advance
performances
provided.
Zero-dimensional
lead
halide
perovskite
nanocrystals
(NCs)
exhibit
size-dependent
bandgap
and
carrier
confinement
compared
to
bulk
counterparts
due
the
quantum
effect,
making
them
essential
for
achieving
wide-color-gamut
displays,
studying
excitonic
spin
relaxation,
constructing
superlattices.
Despite
their
promising
potential,
they
face
a
variety
of
technical
bottlenecks,
such
as
insufficient
color
reproducibility,
limited
large-scale
production,
low
stability,
toxicity.
An
outline
research
roadmap
is
provided
in
review,
which
highlights
key
challenges
developing
NCs
commercial
applications.
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 16, 2025
Abstract
While
the
emergence
of
copper(I)‐iodide
cluster
hybrid
materials
as
potential
substitutes
for
toxic
lead
halides
in
electroluminescence
applications
represents
a
major
advancement,
efficiency
still
needs
improvement
and
fact
circularly
polarized
(CPEL)
remains
largely
unexplored.
In
this
work,
design
chiral
phosphine
ligands
is
dedicated
to
attaining
strongly
luminescent
materials,
thus
achieving
high‐efficiency
CPEL
through
host‐guest
doping
strategy.
The
hybrids
exhibit
intense
yellow
emission
peaked
at
567
nm
with
notable
luminescence
(CPL).
Doping
films
comprising
30%
1,3‐bis(N‐carbazolyl)benzene
(mCP),
2,6‐bis(3‐(9H‐carbazol‐9‐yl)phenyl)pyridine
(2,6‐DCZPPY),
40%
Cu
2
I
demonstrated
excellent
CPL
quantum
yield
(PLQY)
exceeding
80%
low
surface
roughness
0.358
nm.
Based
on
this,
electrically
driven
light‐emitting
diodes
(LEDs)
dissymmetry
factor
(
g
EL
)
1.36×10
−3
peak
external
(EQE)
20.5%
are
successfully
developed.
Notably,
work
not
only
first
demonstration
Cu(I)
halide
clusters
but
also
provides
one
top
device
efficiencies
non‐lead
metal
materials.
Advanced Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 24, 2024
Abstract
Metal
halide
perovskites
have
been
identified
as
a
promising
class
of
materials
for
light‐emitting
applications.
The
development
lead‐based
perovskite
diodes
(PeLEDs)
has
led
to
substantial
improvements,
with
external
quantum
efficiencies
(EQEs)
now
surpassing
30%
and
operational
lifetimes
comparable
those
organic
LEDs
(OLEDs).
However,
the
concern
over
potential
toxicity
lead
motivated
search
alternative
that
are
both
eco‐friendly
possess
excellent
optoelectronic
properties,
lead‐free
emerging
strong
contender.
In
this
review,
properties
various
emitters
analyzed,
particular
emphasis
on
more
well‐reported
tin‐based
variants.
Recent
progress
in
enhancing
device
through
refined
crystallization
processes
optimization
configurations
is
also
discussed.
Additionally,
remaining
challenges
examined,
propose
strategies
may
stable
operation.
Looking
forward,
future
developments
PeLEDs
considered,
including
extension
spectral
range,
adoption
deposition
techniques,
exploration
materials.
Macromolecules,
Год журнала:
2024,
Номер
57(10), С. 5073 - 5080
Опубликована: Май 15, 2024
Polyelectrolyte
porous
membranes
(PPMs)
have
numerous
applications
in
modern
science
and
technology.
Here,
we
describe
a
new
platform
for
creating
multifunctional
supramolecular
PPMs
(SPPMs)
by
cross-linking
of
single-component
homopoly(ionic
liquid)s
(PILs)
containing
hydrophilic
anions
(Br–,
MBry–,
M
=
Sn,
Pb,
Sb,
Bi)
with
H2O
molecules.
With
range
experimental
evidence
support
from
theoretical
calculations,
show
that
the
architecture
is
formed
molecules-induced
phase
separation
polycationic
moieties
homo-PILs
between
their
polar
apolar
domains,
which
are
cross-linked
together
multiple
hydrogen
(H)-bonding
interactions.
Furthermore,
discover
these
SPPMs
reversible,
dynamic,
wide-range
color
tuning,
depending
on
excitation
wavelength,
as
well
ultrasensitive
change
toward
humidity
temperature
stimuli,
endowing
them
great
promise
color-on-demand
applications.
These
findings,
scalable
green
synthetic
approach,
bode
advanced
membrane
materials
based
upon
such
SPPM
systems.
