Energy & Environmental Science,
Journal Year:
2024,
Volume and Issue:
17(16), P. 5984 - 5992
Published: Jan. 1, 2024
Suppressing
side
reactions
led
to
the
formation
of
rational
Dion–Jacobson
2D/3D
surface
heterostructures,
achieving
an
optimal
PCE
23.05%
(certified
22.58%)
for
1.68
eV
perovskite
solar
cells.
Advanced Materials,
Journal Year:
2023,
Volume and Issue:
36(17)
Published: Sept. 7, 2023
Wide-bandgap
(WBG)
perovskites
have
attracted
considerable
attention
due
to
their
adjustable
bandgap
properties,
making
them
ideal
candidates
for
top
subcells
in
tandem
solar
cells
(TSCs).
However,
WBG
often
face
challenges
such
as
inhomogeneous
crystallization
and
severe
nonradiative
recombination
loss,
leading
high
open-circuit
voltage
(V
Advanced Optical Materials,
Journal Year:
2023,
Volume and Issue:
11(20)
Published: Aug. 23, 2023
Abstract
Recently,
mixed‐halide
inorganic
CsPbI
3−
x
Br
perovskite
solar
cells
(PSCs)
have
had
a
rapid
advancement,
which
offers
balanced
efficiency,
stability,
tunable
bandgap,
and
potential
for
indoor
photovoltaic
applications.
Despite
these
advantages,
significant
challenges
remain
in
the
phase
segregation
phenomena,
trap
state
density,
absorption
range
limitations.
This
review
presents
an
analysis
of
crystal
electronic
structure
optical
properties
,
as
well
in‐depth
look
at
high‐quality
film
preparation,
inhibition
solutions,
interface
engineering,
highlighting
critical
role
modification
performance
PSCs.
Furthermore,
how
PSCs
can
be
strong
candidates
photovoltaics
because
their
adjustable
bandgap
that
enables
them
to
better
match
notable
strength
stability
is
discussed.
Finally,
provides
perspectives
address
development
bottlenecks
inspires
future
research
prospects
concerning
Advanced Materials,
Journal Year:
2023,
Volume and Issue:
35(49)
Published: Aug. 7, 2023
Perovskite/organic
tandem
solar
cells
(POTSCs)
are
gaining
attention
due
to
their
easy
fabrication,
potential
surpass
the
S-Q
limit,
and
superior
flexibility.
However,
low
power
conversion
efficiencies
(PCEs)
of
wide
bandgap
(Eg)
perovskite
(PVSCs)
have
hindered
development.
This
work
presents
a
novel
effective
mixed-cation
passivation
strategy
(CE)
passivate
various
types
traps
in
wide-Eg
perovskite.
The
complementary
effect
4-trifluoro
phenethylammonium
(CF3
-PEA+
,
denoted
as
CA+
)
ethylenediammonium
(EDA2+
EA2+
reduces
both
electron/hole
defect
densities
non-radiative
recombination
rate,
resulting
record
open-circuit
voltage
(Voc
PVSCs
(1.35
V)
high
fill
factor
(FF)
83.29%.
These
improvements
lead
PCE
24.47%
when
applied
fabricated
POTSCs,
highest
date.
Furthermore,
unencapsulated
POTSCs
exhibit
excellent
photo
thermal
stability,
retaining
over
90%
initial
after
maximum
point
(MPP)
tracking
or
exposure
60
°C
for
500
h.
findings
imply
that
synergic
surface
passivators
is
promising
achieve
high-efficiency
stable
corresponding
POTSCs.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(21)
Published: Feb. 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,
Journal Year:
2024,
Volume and Issue:
unknown
Published: May 25, 2024
Abstract
Wide‐bandgap
(WBG)
perovskite
solar
cells
(PSCs)
are
recognized
as
promising
candidates
for
diversified
photovoltaics
(PVs),
such
tandem
devices,
indoor
PVs,
and
semitransparent
building‐integrated
PVs.
However,
these
WBG
perovskites
made
from
a
mixed‐halides
strategy
suffer
severe
phase
segregation
under
continuous
illumination,
leading
to
exacerbated
non‐radiative
recombination,
consequently
decreased
open‐circuit
voltage
efficiency.
In
this
review,
the
generation
reversal
processes
of
in
meticulously
introduced.
Additionally,
major
characterization
techniques
presented.
A
detailed
summary
recent
progress
enhancing
photostability
PSCs
through
various
strategies
is
provided.
These
primarily
concentrate
on
composition
regulation,
crystallization
modulation,
inhibition
ion
migration,
strain
regulation.
Finally,
perspectives
potential
directions
carefully
discussed
promote
further
development
high‐efficiency
photostable
PSCs.