Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 21, 2025
Abstract
Wide‐bandgap
perovskite
solar
cells,
which
are
essential
for
tandem
photovoltaics,
easily
suffer
from
open‐circuit
voltage
(
V
OC
)
losses
due
to
challenges
in
suppressing
halogen
heterogeneity
and
defect‐related
nonradiative
recombination
the
active
layers.
Herein,
a
multifunctional
fluorine‐containing
additive
of
8‐pentafluorobenzyloxy
quinoline
(8‐PFBQ)
is
explored
modulate
crystallization
defect
properties
wide‐bandgap
(1.67
eV)
perovskites,
enhancing
both
efficiency
operational
stability
ensuing
cells.
It
demonstrated
that
group
8‐PFBQ
can
strongly
coordinate
with
lead
ions
fluorinated
benzyl
effectively
interacts
organic
halides
through
anion‐π
hydrogen
bonding
interactions
simultaneously.
These
synergistic
effects
improve
crystal
quality
composition
homogeneity,
holistically
reducing
defects
The
resulting
cells
achieve
champion
power
conversion
22.22%,
featuring
high
1.243
two‐fold
enhancement
stability.
This
work
presents
an
alternative
strategy
management
offering
insights
advancements
single‐junction
photovoltaics.
Energy & Environmental Science,
Год журнала:
2023,
Номер
17(3), С. 1153 - 1162
Опубликована: Дек. 20, 2023
Minimizing
interfacial
recombination
loss
in
inverted
perovskite
solar
cells
is
achieved
by
introducing
piperazinium
diiodide
(PDI)
as
a
surface
modifier
to
passivate
deep
defects
and
adjust
the
interface
band
bending.
Angewandte Chemie International Edition,
Год журнала:
2023,
Номер
62(34)
Опубликована: Июнь 26, 2023
Abstract
The
interface
of
perovskite
solar
cells
(PSCs)
is
significantly
important
for
charge
transfer
and
device
stability,
while
the
buried
with
impact
on
film
growth
has
been
paid
less
attention.
Herein,
we
use
a
molecular
modifier,
glycocyamine
(GDA)
to
build
bridge
SnO
2
/perovskite,
resulting
in
superior
interfacial
contact.
This
achieved
through
strongly
interaction
between
GDA
,
which
also
appreciably
modulates
energy
level.
Moreover,
can
regulate
crystal
growth,
yielding
enlarged
grain
size
absence
pinholes,
exhibiting
substantially
reduced
defect
density.
Consequently,
PSCs
modification
demonstrate
significant
improvement
open
circuit
voltage
(close
1.2
V)
fill
factor,
leading
an
improved
power
conversion
efficiency
from
22.60
%
24.70
%.
Additionally,
stabilities
devices
under
maximum
point
85
°C
heat
both
perform
better
than
control
devices.
Advanced Materials,
Год журнала:
2023,
Номер
36(7)
Опубликована: Окт. 7, 2023
The
buried
interface
of
the
perovskite
layer
has
a
profound
influence
on
its
film
morphology,
defect
formation,
and
aging
resistance
from
outset,
therefore,
significantly
affects
quality
device
performance
derived
solar
cells.
Especially
for
FAPbI
Angewandte Chemie International Edition,
Год журнала:
2023,
Номер
62(31)
Опубликована: Июнь 8, 2023
High-performance
perovskite
solar
cells
have
demonstrated
commercial
viability,
but
still
face
the
risk
of
contamination
from
lead
leakage
and
long-term
stability
problems
caused
by
defects.
Here,
an
organic
small
molecule
(octafluoro-1,6-hexanediol
diacrylate)
is
introduced
into
film
to
form
a
polymer
through
in
situ
thermal
crosslinking,
which
carbonyl
group
anchors
uncoordinated
Pb2+
reduces
lead,
along
with
-CF2
-
hydrophobic
protecting
water
invasion.
Additionally,
passivates
varieties
Pb-related
I-related
defects
coordination
hydrogen
bonding
interactions,
regulating
crystallization
reduced
trap
density,
releasing
lattice
strain,
promoting
carrier
transport
extraction.
The
optimal
efficiencies
polymer-incorporated
devices
are
24.76
%
(0.09
cm2
)
20.66
(14
).
More
importantly,
storage
stability,
operational
been
significantly
improved.
Energy & Environmental Science,
Год журнала:
2023,
Номер
16(12), С. 5992 - 6002
Опубликована: Янв. 1, 2023
A
simple
and
straightforward
interface
engineering
strategy,
using
stacked
layers
of
small
molecules
(2PACz/Me-4PACz)
as
hole-selective
layers,
resulted
in
the
formation
a
dense
buried
perovskite
film.
ACS Energy Letters,
Год журнала:
2024,
Номер
9(4), С. 1487 - 1506
Опубликована: Март 12, 2024
Inverted
perovskite
solar
cells
(PSCs)
with
p-i-n
structure
have
recently
attracted
widespread
attention
owing
to
their
fast-growing
power
conversion
efficiency.
In
this
Review,
we
focus
on
the
progress
in
materials
that
contribute
improved
efficiency
of
inverted
PSCs,
including
hole
transport
self-assembled
monolayers
as
highlight,
electron
materials,
and
interface
modification
between
charge
layers
for
passivating
defects.
Then,
discuss
recent
advances
perovskites,
optimization
bandgap,
interfacial
band
engineering,
development
film
processing.
Finally,
point
out
challenges
future
perspectives
further
improving
stability
PSCs
hope
offering
suggestions
tackle
hindrance
commercial
applications.
Advanced Materials,
Год журнала:
2024,
Номер
36(19)
Опубликована: Фев. 1, 2024
The
instability
of
top
interface
induced
by
interfacial
defects
and
residual
tensile
strain
hinders
the
realization
long-term
stable
n-i-p
regular
perovskite
solar
cells
(PSCs).
Herein,
one
molecular
locking
strategy
is
reported
to
stabilize
adopting
polydentate
ligand
green
biomaterial
2-deoxy-2,2-difluoro-d-erythro-pentafuranous-1-ulose-3,5-dibenzoate
(DDPUD)
manipulate
surface
grain
boundaries
films.
Both
experimental
theoretical
evidence
collectively
uncover
that
uncoordinated
Pb
Advanced Materials,
Год журнала:
2024,
Номер
36(21)
Опубликована: Фев. 24, 2024
Light-induced
phase
segregation
is
one
of
the
main
issues
restricting
efficiency
and
stability
wide-bandgap
perovskite
solar
cells
(WBG
PSCs).
Small
organic
molecules
with
abundant
functional
groups
can
passivate
various
defects,
therefore
suppress
ionic
migration
channels
for
segregation.
Herein,
a
series
pyridine-derivative
isomers
containing
amino
carboxyl
are
applied
to
modify
surface.
The
amino,
carboxyl,
N-terminal
pyridine
in
all
these
interact
undercoordinated
Pb
Advanced Functional Materials,
Год журнала:
2024,
Номер
34(22)
Опубликована: Фев. 8, 2024
Abstract
Interface
engineering
is
known
for
effectively
improving
interfacial
contact
and
passivating
defects
to
enhance
device
performance
of
inverted
perovskite
solar
cells
(PSCs).
Currently,
most
works
focus
on
surface
passivation,
while
the
buried
interface
equally
important.
The
film
quality
layer
greatly
relies
interface,
leaving
a
pronounced
impact
overall
performance.
In
addition,
resolving
energy
level
mismatch
at
remains
challenging.
Optimizing
becomes
promising
approach
high‐efficiency
PSCs.
This
review
summarizes
recent
advances
in
emphasize
importance
corresponding
characterization
techniques.
various
functions
are
carefully
discussed,
including
crystallization
modulation,
defect
alignment,
chemical
reaction
inhibition,
bridge,
dipole
cancellation
novel
Finally,
current
challenges
prospects
put
forward
that
should
be
addressed
further
improve
