Perovskite,
a
star
material
with
extraordinary
opto‐electronic
properties
has
shown
promising
results
in
both
perovskite
solar
cells
(PSCs)
and
light‐emitting
diodes
(PeLEDs).
Taking
advantage
of
the
similar
configuration
PSCs
PeLEDs,
next
generation
devices
dual
functionality
light‐harvesting
light‐emission
can
be
realized.
Such
hold
enormous
application
prospects.
However,
necessary
tradeoff
resulted
from
opposite
working
principles
required
for
each
mode
operation
challenges
such
as
non‐radiative
recombination
loss
bulk
surface
defects
films
mismatched
energy
levels
have
hindered
mass
production.
To
provide
roadmap
rationally
designing
efficient
light
emitting
(LEPSCs),
comprehensive
review
focusing
on
operating
principle,
device
architecture,
recent
developments
limitations
is
required.
We
begin
brief
overview
basic
underlying
mechanism
LEPSCs
photon
to
electricity
conversion
viceversa.
The
focus
this
then
shift
towards
deligently
combining
overviewing
important
breakthroughs
reported
newly
developed
field
morphology
optimization,
defect
passivation,
interface
engineering,
level
alignment
dimensional
control.
Finally,
work
concludes
discussing
future
providing
rational
design
stable
LEPSCs.
Bilayer
nickel
oxide
(NiOx)/[2-(3,6-dimethoxy-9H-carbazol-9yl)
ethyl]
phosphonic
acid
(MeO-2PACz)
hole
transport
layers
have
become
attractive
for
perovskite
solar
cells
and
tandem
architectures.
However,
challenges
such
as
the
instability
of
NiOx
ink,
accumulation,
trap-assisted
non-radiative
recombination
at
interface
remain
major
drawbacks
using
NiOx/MeO-2PACz
HTL
bilayer.
In
this
work,
two
synergic
strategies
are
employed
to
address
these
issues
doping
ink
with
niobium
(Nb)-based
MXene)
introduction
S-benzyl-L-cysteine
(SBLC)
molecule
passivate
MeO-2PACz/perovskite
interface.
These
modifications
effectively
reduced
defect
states
in
layer
enhanced
dipole
moment
MeO-2PACz,
minimizing
valence
band
offset
reduction
charge
rates.
Consequently,
target
PSC
device,
made
1.68
eV-bandgap
perovskite,
demonstrated
a
power
conversion
efficiency
(PCE)
19.5%
improved
stability
compared
control
device
when
tested
under
ISOS
protocols.
Furthermore,
semi-transparent
(ST)
PSCs
been
fabricated
application
4T
perovskite-silicon
cell
showing
PCE
18.15%
27.95%
single-junction
architectures,
respectively.
findings
demonstrate
effectiveness
combining
strategic
passivation
techniques
inverted
enhancing
performance
without
discarding
long-term
stability.
Perovskite
quantum
dots
(QDs)
exhibit
unique
advantages,
including
a
wide
color
gamut,
narrow
full
width
at
half-maximum,
cost-effectiveness,
and
high-efficiency
luminescence,
positioning
them
as
significant
focus
in
contemporary
optoelectronic
research.
Nevertheless,
the
synthesis
of
QDs
often
introduces
crystal
defects,
while
conventional
situ
ligands
can
detrimentally
affect
properties
perovskites.
To
overcome
these
challenges,
we
synthesized
symmetrical
silane-based
passivating
agent
containing
phosphorus–oxygen
double
bonds.
This
enabled
passivation
perovskites,
significantly
improving
their
optical
performance
stability.
Results
showed
that
postpassivation
demonstrated
bright
green
photoluminescence
(PL)
525
nm,
with
28%
enhancement
PL
intensity,
16%
increase
yield,
an
average
lifetime
(τave)
extended
by
191.2
ns.
Furthermore,
thermal
stability
80
°C
improved
3.75-fold,
under
84%
relative
humidity
conditions
increased
21%.
1,3-bis(3-diethoxyphosphorylpropyl)-1,1,3,3-tetramethyldisiloxane
(SPE)-passivated
perovskites
are
viable
for
practical
applications.
Nano-Micro Letters,
Год журнала:
2025,
Номер
17(1)
Опубликована: Фев. 8, 2025
Quasi-two-dimensional
(2D)
perovskite
embodies
characteristics
of
both
three-dimensional
(3D)
and
2D
perovskites,
achieving
the
superior
external
environment
stability
structure
perovskites
alongside
high
efficiency
3D
perovskites.
This
effect
is
realized
through
critical
structural
modifications
in
device
fabrication.
Typically,
have
an
octahedral
structure,
generally
ABX3,
where
organic
ammonium
cation
(A')
participates
forming
with
A'(n)
(n
=
1
or
2)
sandwiched
between
A(n-1)B(n)X(3n+1)
layers.
Depending
on
whether
A'
a
monovalent
divalent
cation,
are
classified
into
Ruddlesden-Popper
Dion-Jacobson
perovskite,
each
generating
different
structures.
Although
achieves
similar
effects,
they
incorporate
distinct
mechanisms
their
formation.
And
according
to
these
structures,
various
properties
appear,
additive
optimizing
methods
increase
also
exist
In
this
review,
scientific
understanding
engineering
perspectives
quasi-2D
investigated,
optimal
optimization
discussed
provide
insight
field.
Physical Chemistry Chemical Physics,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
Quasi-two-dimensional
(Q-2D)
perovskite
solar
cells
have
garnered
significant
attention
due
to
their
unique
hydrophobic
organic
cations
and
commendable
stability.
Chemical Communications,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
This
feature
article
summarizes
the
recent
developments
and
challenges
in
two-dimensional
nanostructures
of
transition
metal-based
materials
towards
aqueous
electrochemical
energy
storage
including
zinc-ion
batteries
supercapacitors.
Advanced Materials Interfaces,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 20, 2025
Abstract
Transparent
electrodes
with
high
conductivity
and
mechanical
robustness
are
essential
for
flexible
opto‐electronic
applications.
Indium
tin
oxide
(ITO)
single
layers
have
long
been
considered
as
unsuitable
applications
due
to
their
brittleness.
Here,
it
is
shown
that
stability
can
be
substantially
enhanced
by
texturing
the
substrate.
First,
performance
of
ITO
ITO/Ag/ITO
stacks
on
polyethylene
terephthalate
(PET)
foils
evaluated
numerically
means
Haacke's
figure‐of‐merit.
Single
found
electrode
choice
a
near‐infrared
response
superior
transparency.
Following
this,
sheet
resistance
experimentally
investigated
textured
PET
upon
deformation
parallel
perpendicular
1D
texture
grating.
An
“accordion‐like”
grating
aspect
ratios
avoid
crack
formation
loss
in
ITO.
Simulations
prove
considerably
reduced
occurrence
stress
this
case.
It
further
demonstrated
increase
transmittance
haze.
The
optical
using
make
promising
candidates
response,
such
all‐perovskite
tandem
solar
cells,
thermal
sensors,
photodetectors.
Journal of Materials Chemistry A,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
Solution-processed
top
electrodes
are
crucial
for
PSC
commercialization.
This
TOC
image
illustrates
solution-processed
commercial-scale
perovskite
photovoltaics.
