Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 10, 2025
Abstract
Perovskite
light‐emitting
diodes
(PeLEDs)
has
emerged
as
one
of
the
most
promising
technologies
for
next
generation
lighting
and
high‐definition
display
applications
due
to
their
exceptional
color
purity,
tunable
emission,
low
material
costs.
In
past
eleven
years,
PeLEDs
have
made
remarkable
progress
researchers
come
up
with
many
innovative
approaches.
Among
them,
additive
engineering
based
on
small
organic
molecules
(SOMs)
been
demonstrated
effective
strategies
enhance
external
quantum
efficiency
(EQE)
stability
PeLEDs.
Notably,
champion
EQEs
red,
green,
blue
devices
cannot
be
realized
without
participation
SOMs.
Here,
this
paper
first
reviews
development
PeLEDs,
followed
by
a
focused
discussion
specific
application
mechanism
SOMs
in
Lastly,
it
analyzes
challenges
provides
an
outlook
future
development.
Chemical Society Reviews,
Год журнала:
2023,
Номер
52(16), С. 5516 - 5540
Опубликована: Янв. 1, 2023
Lead
halide
perovskite
nanocrystals
are
promising
for
next-generation
high-definition
displays,
especially
in
light
of
their
tunable
bandgaps,
high
color
purities,
and
carrier
mobility.
Within
the
past
few
years,
external
quantum
efficiency
nanocrystal-based
light-emitting
diodes
has
progressed
rapidly,
reaching
standard
commercial
applications.
However,
low
operational
stability
these
remains
a
crucial
issue
industrial
development.
Recent
experimental
evidence
indicates
that
migration
ionic
species
is
primary
factor
giving
rise
to
performance
degradation
diodes,
ion
closely
related
defects
on
surface
at
grain
boundaries
thin
films.
In
this
review,
we
focus
central
idea
reconstruction
nanocrystals,
discuss
influence
migration,
summarize
recent
advances
resurfacing
nanocrystal
strategies
toward
mitigating
improve
as-fabricated
diode
devices.
From
perspective
resurfacing,
set
out
research
direction
improving
both
spectral
diodes.
ACS Energy Letters,
Год журнала:
2023,
Номер
8(4), С. 1795 - 1802
Опубликована: Март 17, 2023
Multicomponent
systems
consisting
of
lead
halide
perovskite
nanocrystals
(CsPbX3-NCs,
X
=
Br,
I)
grown
inside
mesoporous
silica
nanospheres
(NSs)
with
selectively
sealed
pores
combine
intense
scintillation
and
strong
interaction
ionizing
radiation
CsPbX3
NCs
the
chemical
robustness
in
aqueous
environment
particles,
offering
potentially
promising
candidates
for
enhanced
radiotherapy
radio-imaging
strategies.
We
demonstrate
that
boost
generation
singlet
oxygen
species
(1O2)
water
under
X-ray
irradiation
encapsulation
into
SiO2
NSs
guarantees
perfect
preservation
inner
after
prolonged
storage
harsh
conditions.
find
1O2
production
is
triggered
by
electromagnetic
shower
released
a
striking
correlation
composition
(I3
>
I3-x
Br
x
Br3).
This
opens
possibility
designing
multifunctional
radio-sensitizers
able
to
reduce
local
delivered
dose
undesired
collateral
effects
surrounding
healthy
tissues
improving
localized
cytotoxic
effect
therapeutic
treatments
concomitantly
enabling
optical
diagnostics
radio
imaging.
Abstract
Perovskite
nanocrystals
are
embedded
into
metal–organic
frameworks
(MOFs)
to
create
composites
with
high
light
absorption
coefficients,
tunable
electronic
properties,
specific
surface
area,
and
metal
atom
tunability
for
enhanced
photocatalytic
carban
dioxide
(CO
2
)
reduction.
However,
existing
perovskite‐MOF
structures
a
large
particle
size
achieved
based
on
Pb
source
adsorption
the
pores
of
MOFs,
which
can
significantly
break
down
porous
structure,
thereby
resulting
in
decreased
area
impacting
CO
adsorption.
Herein,
novel
structure
synthesis
bimetallic
Pb‐containing
MOFs
post‐processing
convert
CsPbBr
3
(NCs)
is
proposed.
It
discovered
that
additional
not
introduced
by
adsorption,
but
instead
engages
coordination
generates
Pb‐N.
The
produced
ZIF‐8@CsPbBr
NCs
≈40
nm
have
an
ultra‐high
1325.08
m
g
−1
,
excellent
photovoltaic
characteristics,
beneficial
conversion
rate
450
mol
h
more
than
three
times
pure
perovskites.
Additionally,
superior
reduction
capacity
sustained
after
undergoing
four
cycles.
Density
Functional
Thoery
(DFT)
simulations
used
explore
3D
charge
density
at
interface
better
understand
electrical
structure.
Abstract
Metal
halide
perovskites
with
excellent
optical
and
electronic
properties
have
become
a
trending
material
in
the
current
research.
However,
their
limited
stability
under
ambient
conditions
degrades
quality
threatens
potential
commercialization
as
optoelectronic
devices.
Various
approaches
are
adopted
to
improve
of
perovskite
nanocrystals
(PeNC)
while
maintaining
advantageous
properties,
particularly
strong
luminescence.
Among
different
possible
improvement
strategies,
encapsulation
PeNCs
within
amorphous
glass
matrices
inorganic
oxides
has
drawn
widespread
attention
because
it
ensures
high
resistance
against
chemical
corrosion
temperature,
thus
enhancing
chemical,
thermal,
mechanical
improved
light‐emission
characteristics.
In
this
article,
two
types
materials,
namely
all‐inorganic
metal
oxide
glasses
briefly
introduced,
then
methods
reviewed
fabricate
PeNC@glass
composites.
These
classified
into
three
universal
categories:
compositional
modification,
structural
dual
encapsulation.
final
part
review
paper,
examples
applications
PeNCs@glass
composites
light‐emitting
devices
displays,
data
storage
anti‐counterfeiting,
lasing,
photodetectors
X‐ray
detectors,
photocatalysis,
filters,
solar
concentrators,
batteries
provided.
Advanced Optical Materials,
Год журнала:
2023,
Номер
11(7)
Опубликована: Фев. 3, 2023
Abstract
Perovskites
with
superior
photophysical
properties
and
simple
solution
processing
are
widely
applied
in
solar
cells,
light‐emitting
diodes,
photodetectors,
lasers.
However,
the
target
of
high‐performance
multifunctional
perovskite
optoelectronics
is
hampered
by
their
intrinsic
properties,
such
as
undesired
crystallization
rate,
ease
ion
migration,
poor
stability,
high
brittleness.
A
perovskite–polymer
matrix,
including
a
composite
polymer–perovskite–polymer
heterostructure,
adopted
to
handle
above
issues.
This
review
starts
categorized
polymer
addition
methods
relevant
distribution
for
matrix.
In
addition,
performance
originating
from
controlled
crystallization,
stress
regulation,
inhibited
defect
passivation,
reduced
interfacial
recombination,
multifunctions
enhanced
mechanical
robustness,
self‐healing
ability,
controllable
dimension,
novel
optical
then
summarized.
Meanwhile,
working
mechanisms
matrix
also
discussed.
Finally,
promising
guidelines
proposals
provided
promote
commercialization
optoelectronics.
ACS Omega,
Год журнала:
2024,
Номер
9(32), С. 34220 - 34242
Опубликована: Авг. 1, 2024
Perovskites
are
bringing
revolutionization
in
a
various
fields
due
to
their
exceptional
properties
and
crystalline
structure.
Most
specifically,
halide
perovskites
(HPs),
lead-free
(LFHPs),
perovskite
quantum
dots
(HPs
QDs)
becoming
hotspots
unique
optoelectronic
properties,
low
cost,
simple
processing.
HPs
QDs,
particular,
have
excellent
photovoltaic
applications
because
of
tunable
emission,
high
photoluminescence
yield
(PLQY),
effective
charge
separation,
cost.
However,
practical
the
QDs
family
some
limitations
such
as
degradation,
instability,
deep
trap
states
within
bandgap,
structural
inflexibility,
scalability,
inconsistent
reproducibility,
environmental
concerns,
which
can
be
covered
by
encapsulating
into
porous
materials
like
metal–organic
frameworks
(MOFs)
or
covalent–organic
(COFs)
that
offer
protection,
prevention
aggregation,
optical
flexibility
structure,
enhanced
biocompatibility,
improved
stability
under
harsh
conditions,
consistency
production
quality,
efficient
separation.
These
advantages
MOFs-COFs
help
harness
full
potential
for
applications.
This
review
mainly
consists
three
parts.
The
first
portion
discusses
perovskites,
dots.
In
second
portion,
we
explore
MOFs
COFs.
third
particular
emphasis
is
given
thorough
evaluation
development
QDs@MOFs-COFs
based
comprehensive
investigations
next-generation
intended
diverse
technological
applications,
CO2
conversion,
pollutant
hydrogen
generation,
batteries,
gas
sensing,
solar
cells.
Finally,
this
will
open
new
gateway
synthesis
perovskite-based
Journal of Materials Chemistry C,
Год журнала:
2024,
Номер
12(13), С. 4544 - 4561
Опубликована: Янв. 1, 2024
The
use
of
perovskite-based
nanomaterials
in
smartphone
sensors,
which
enhance
accessibility
and
efficiency
health
diagnostics,
their
potential
the
integration
with
wearable
technology
for
improved
monitoring
is
explored.
ACS Applied Materials & Interfaces,
Год журнала:
2022,
Номер
14(44), С. 49945 - 49956
Опубликована: Окт. 26, 2022
An
interpenetrating
structure
endows
metal-organic
frameworks
(MOFs)
with
many
exciting
applications,
such
as
fluorescence
detection
and
host-guest
chemistry.
Herein,
two
unique
structure-interpenetrating
In-MOFs
(In-pdda-1
In-pdda-2;
H2pdda
=
4,4'-(pyridine-2,5-diyl)dibenzoic
acid)
are
constructed
by
different
coordination
configurations.
The
four-connected
In3+
center
shows
a
triangular-pyramidal
configuration
or
2D
rectangle,
forming
an
unc
topology
for
In-pdda-1
sql
network
In-pdda-2,
respectively.
Two
modes
created
linear
rigid
ligands
metal
clusters
observed
in
the
MOFs
(In-pdda-1,
8-fold
mode;
[2D
+
2D]
mode),
which
determine
channel-size-dependent
properties
applications.
During
quantitative
process
of
gossypol,
small
rhombic
channels
divided
molecular
planes
In-pdda-2
greatly
limit
distance
between
analyte
probe,
promoting
electron
transfer
energy
processes
thus
resulting
low
(28.6
nM).
In
addition,
pore
size
effect
encouraged
us
to
explore
situ
perovskite
quantum
dot
encapsulation
strategy
obtain
MAPbBr3@MOF
material
tunable
stable
luminescence
properties.
Both
above
may
provide
inspiration
structural
design
specialized
applications
MOF
materials.
