Advanced Energy Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 19, 2024
Abstract
Most
strategies
only
focus
on
passivating
dynamic
defects
the
surfaces
of
perovskite
films
or
addressing
Pb
leakage
issues
separately,
lacking
comprehensive
solutions.
In
view
this,
photochromic
compound
1,3,3‐trimethylindolinonaphthospirooxazine
(SO)
and
its
photoisomerization
product
(MC)
are
innovatively
introduced
into
inorganic
solar
cells
(IPSCs).
Under
light
irradiation,
distinctive
transformation
characteristics
photoisomeric
molecules
leveraged
to
effectively
continuously
passivate
defects.
Meanwhile,
ring‐opening
MC
structure
provides
two
anchoring
sites,
which
form
a
stable
chelating
ring
with
undercoordinated
2+
,
thereby
mitigating
risk
leakage.
Both
theoretical
analyses
experimental
findings
indicate
that
expose
more
active
sites
due
their
open
molecular
under
illumination,
thus
tightly
binding
ions
(I
−
)
in
films.
The
passivation
treatment
exhibits
an
impressive
power
conversion
efficiency
(PCE)
22.04%,
while
also
improving
hydrophobicity,
UV
resistance,
biocompatibility
This
approach
not
presents
new
perspective
for
boosting
performance
stability
IPSCs
but
takes
important
step
toward
promoting
development
environmental
friendliness
sustainability.
Nanomaterials,
Journal Year:
2025,
Volume and Issue:
15(7), P. 494 - 494
Published: March 26, 2025
Hybrid
organic–inorganic
perovskites
have
emerged
as
promising
materials
for
next-generation
optoelectronic
devices
owing
to
their
tunable
properties
and
low-cost
fabrication.
We
report
the
synthesis
of
3D
hybrid
with
monoethanolammonium
cations.
Specifically,
we
investigated
morphological
characteristics
polycrystalline
films
MAxMEA1−xPbI3,
which
contain
methylammonium
(MA)
(MEA)
MAxMEA1−xPbI3
crystallizes
in
a
tetragonal
perovskite
structure.
The
substitution
cations
ions
led
an
increase
lattice
parameters
bandgap
energy.
Energy
level
diagrams
synthesized
samples
were
also
constructed.
MA0.5MEA0.5PbI3
makes
it
material
use
tandem
solar
cells.
These
films,
namely
MA0.25MEA0.75PbI3
fabricated
using
one-step
spin-coating
method
without
antisolvent.
exhibit
uniform
surface
morphology
under
specified
deposition
parameters.
Within
scope
this
study,
no
evidence
dendritic
structures
or
pinhole-type
defects
observed.
All
demonstrated
photocurrent
generation
visible
light
illumination.
Moreover,
reduced
hysteresis
I–V
characteristics,
indicating
improved
device
stability.
Journal of Materials Chemistry A,
Journal Year:
2024,
Volume and Issue:
12(20), P. 12262 - 12273
Published: Jan. 1, 2024
Tandem
photovoltaics
consisting
of
a
wide-bandgap
top
cell
and
narrow-bandgap
bottom
have
shown
great
potential
to
exceed
current
single-junction
photovoltaics.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(45)
Published: Sept. 18, 2024
Abstract
The
compatibility
of
perovskite
and
organic
photovoltaic
materials
in
solution
processing
provides
a
significant
advantage
the
fabrication
high‐efficiency
perovskite/organic
tandem
solar
cells.
However,
additional
recombination
losses
can
occur
during
exciton
dissociation
materials,
leading
to
energy
near‐infrared
region
devices.
Consequently,
ternary
rear
subcell
is
designed
containing
two
narrow‐bandgap
non‐fullerene
acceptors
enhance
absorption
light.
Simultaneously,
unique
diffusion‐controlled
growth
technique
adopted
optimize
morphology
active
layer,
thereby
improving
efficiency.
This
innovation
not
only
broadens
range
light
but
also
facilitates
generation
effective
excitons.
Owing
these
technological
improvements,
power
conversion
efficiency
(PCE)
cells
increased
19.2%.
Furthermore,
wide‐bandgap
front
integrated
with
develop
cell.
reduction
loss,
PCE
this
device
significantly
improved,
reaching
24.5%.
ACS Nano,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 23, 2024
Perovskite/organic
tandem
solar
cells
(PO-TSCs)
have
recently
attracted
increasing
attention
due
to
their
high
efficiency
and
excellent
stability.
The
interconnecting
layer
(ICL)
is
of
great
importance
for
the
performance
PO-TSCs.
charge
transport
(CTL)
recombination
(CRL)
that
form
ICL
should
be
carefully
designed
enhance
carrier
extraction
promote
balance
from
two
subcells.
Here,
we
propose
an
effective
strategy
optimize
by
using
[2-(9
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(40)
Published: May 14, 2024
Abstract
Hybrid
organometal
halide
perovskites
(HP)
present
exceptional
optoelectronic
properties,
but
their
poor
long‐term
stability
is
a
major
bottleneck
for
commercialization.
Herein,
solvent‐free
approach
to
growing
single‐crystal
organic
nanowires
(ONW)
presented,
along
with
nanoporous
metal
oxide
scaffolds
and
HP,
form
core@multishell
architecture.
The
synthesis
carried
out
under
mild
vacuum
conditions
employing
thermal
evaporation
the
metal‐free
phthalocyanine
(H
2
Pc)
nanowires,
which
are
core,
plasma‐enhanced
chemical
vapor
deposition
(PECVD)
TiO
shell,
co‐evaporation
of
lead
iodide
(PbI
)
methylammonium
(CH
3
NH
I/MAI)
CH
PbI
(MAPbI
/MAPI)
perovskite
shell.
A
detailed
characterization
nanostructures
by
electron
microscopy,
(S)‐TEM,
X‐ray
diffraction,
XRD,
revealing
different
crystallization
HP
depending
on
template:
while
growth
H
Pc
induces
typical
MAPI
tetragonal
structure,
low‐dimensional
phase
(LDP)
observed
1D‐TiO
nanotubes.
Such
combination
yields
an
unprecedentedly
stable
photoluminescence
emission
over
20
h
300
after
encapsulation
in
polymethyl
methacrylate
(PMMA)
atmospheres
including
N
,
air,
high
moisture
levels.
Moreover,
unique
1D
morphology
system,
together
refractive
index,
allows
strong
waveguiding
effect
nanowire
length.
Advanced Energy Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 3, 2024
Abstract
Perovskite
whentandemed
with
organic
photovoltaics
(OPV)
for
double‐junctions
have
efficiencypotentials
over
40%.
However,
there
is
still
room
improvement
suchas
better
current
matching,
higher
fill
factor,
as
well
lower
voltage
and
factor
losses
in
the
top
perovskite
cell.
Here
weaddress
issue
associated
cell
by
utilising
anovel
halogenated
polycyclic
aromatic
hydrocarbon
compound,
1‐naphthylammoniumchloride
(NA─Cl)
playing
dual
roles
of
surface
modification
hole
selectivelayer
(HSL)
passivation
HSL/perovskiteinterface.
Results
X‐ray
photoelectron
spectroscopy
density
functionaltheory
calculations
reveal
that
NA─Cl
retains
self‐assembly
property
HSLwhile
demonstrating
high
dipole
moment
polarizability.
This
induces
asurface
at
HSL/perovskite
interface
reducing
energetic
barrierfor
extraction
210
meV
thereby
enhancing
output
factorof
device.
Such
scheme
when
implemented
a
bandgap
(1.78
eV)perovskite
solar
cell,
results
respectable
efficiency
19.7%
thehighest
85.4%
amongst
those
1.78
eV
cells
reported.We
also
achieved
23%
efficient
monolithic
perovskite‐OPV
tandem
withan
impressive
84%,
which
highest
perovskite‐OPVtandem
reported
to‐date.
