Advanced Energy Materials,
Journal Year:
2024,
Volume and Issue:
14(8)
Published: Jan. 9, 2024
Abstract
Numerous
deep/shallow
level
defects
generated
at
the
surface/grain
boundaries
of
perovskite
during
uncontrollable
crystallization
pose
a
formidable
challenge
to
photovoltaic
performance
solar
cells
(PSCs).
Herein,
an
organometallic
cobaltocenium
salt
additive,
1‐propanol‐2‐(1,2,3‐triazol‐4‐yl)
hexafluorophosphate
(PTCoPF
6
),
is
incorporated
into
precursor
solution
regulate
and
minimize
holistic
for
high‐performance
inverted
PSCs.
The
cations
PF
−
in
PTCoPF
stabilize
Pb‐I
framework
repair
shallow‐level
positively
negatively
charged
vacancies
perovskite.
N═N
triazole
ring
can
passivate
deep‐level
uncoordinated
lead.
interaction
between
materials
delays
nucleation
crystal
growth,
ensuring
high‐quality
with
large
grains,
suppressing
non‐radiative
recombination
ion
migration.
Therefore,
‐incorporated
PSC
achieves
impressive
power
conversion
efficiency
25.03%
outstanding
long‐term
stability.
Unencapsulated
encapsulated
PSCs
maintain
93%
95%
their
initial
efficiencies
under
85
°C
storage
nitrogen
atmosphere
1000
h
maximum
point
tracking
nearly
h,
respectively.
Synergistic
kinetic
modulation
defect
passivation
ionized
metal‐organic
complex
additives
will
become
prevalent
methods
improve
stability
Science,
Journal Year:
2024,
Volume and Issue:
384(6692), P. 189 - 193
Published: April 11, 2024
Inverted
(pin)
perovskite
solar
cells
(PSCs)
afford
improved
operating
stability
in
comparison
to
their
nip
counterparts
but
have
lagged
power
conversion
efficiency
(PCE).
The
energetic
losses
responsible
for
this
PCE
deficit
pin
PSCs
occur
primarily
at
the
interfaces
between
and
charge-transport
layers.
Additive
surface
treatments
that
use
passivating
ligands
usually
bind
a
single
active
binding
site:
This
dense
packing
of
electrically
resistive
passivants
perpendicular
may
limit
fill
factor
PSCs.
We
identified
two
neighboring
lead(II)
ion
(Pb
Science,
Journal Year:
2024,
Volume and Issue:
384(6698), P. 878 - 884
Published: May 23, 2024
Mechanical
failure
and
chemical
degradation
of
device
heterointerfaces
can
strongly
influence
the
long-term
stability
perovskite
solar
cells
(PSCs)
under
thermal
cycling
damp
heat
conditions.
We
report
chirality-mediated
interfaces
based
on
Science,
Journal Year:
2024,
Volume and Issue:
385(6705), P. 161 - 167
Published: July 11, 2024
Black-phase
formamidinium
lead
iodide
(α-FAPbI
3
)
perovskites
are
the
desired
phase
for
photovoltaic
applications,
but
water
can
trigger
formation
of
photoinactive
impurity
phases
such
as
δ-FAPbI
.
We
show
that
classic
solvent
system
perovskite
fabrication
exacerbates
this
reproducibility
challenge.
The
conventional
coordinative
dimethyl
sulfoxide
(DMSO)
promoted
under
high
relative
humidity
(RH)
conditions
because
its
hygroscopic
nature.
introduced
chlorine-containing
organic
molecules
to
form
a
capping
layer
blocked
moisture
penetration
while
preserving
DMSO-based
complexes
regulate
crystal
growth.
report
power
conversion
efficiencies
>24.5%
solar
cells
fabricated
across
an
RH
range
20
60%,
and
23.4%
at
80%
RH.
unencapsulated
device
retained
96%
initial
performance
in
air
(with
40
60%
RH)
after
500-hour
maximum
point
operation.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(37)
Published: March 1, 2024
Abstract
Perovskite
solar
cells
(PSCs)
have
attracted
widespread
research
and
commercialization
attention
because
of
their
high
power
conversion
efficiency
(PCE)
low
fabrication
cost.
The
long‐term
stability
PSCs
should
satisfy
industrial
requirements
for
photovoltaic
devices.
Inverted
with
a
p‐i‐n
architecture
exhibit
considerable
advantages
excellent
competitive
efficiency.
continuously
broken‐through
PCE
inverted
shows
huge
application
potential.
This
review
summarizes
the
developments
outlines
characteristics
including
charge
transport
layers
(CTLs),
perovskite
compositions,
interfacial
regulation
strategies.
latest
effective
CTLs,
modification,
promotion
strategies
especially
under
light,
thermal,
bias
conditions
are
emphatically
analyzed.
Furthermore,
applications
structure
in
high‐efficiency
stable
tandem,
flexible
devices,
modules
main
obstacles
systematically
introduced.
Finally,
remaining
challenges
faced
by
devices
discussed,
several
directions
advancing
proposed
according
to
development
status
industrialization
requirements.
Chemical Reviews,
Journal Year:
2024,
Volume and Issue:
124(7), P. 4079 - 4123
Published: March 25, 2024
All-perovskite
tandem
solar
cells
are
attracting
considerable
interest
in
photovoltaics
research,
owing
to
their
potential
surpass
the
theoretical
efficiency
limit
of
single-junction
cells,
a
cost-effective
sustainable
manner.
Thanks
bandgap-bowing
effect,
mixed
tin-lead
(Sn-Pb)
perovskites
possess
close
ideal
narrow
bandgap
for
constructing
matched
with
wide-bandgap
neat
lead-based
counterparts.
The
performance
all-perovskite
tandems,
however,
has
yet
reach
its
potential.
One
main
obstacles
that
need
be
overcome
is
the─oftentimes─low
quality
Sn-Pb
perovskite
films,
largely
caused
by
facile
oxidation
Sn(II)
Sn(IV),
as
well
difficult-to-control
film
crystallization
dynamics.
Additional
detrimental
imperfections
introduced
thin
film,
particularly
at
vulnerable
surfaces,
including
top
and
bottom
interfaces
grain
boundaries.
Due
these
issues,
resultant
device
distinctly
far
lower
than
theoretically
achievable
maximum
efficiency.
Robust
modifications
improvements
surfaces
films
therefore
critical
advancement
field.
This
Review
describes
origins
covers
efforts
made
so
toward
reaching
better
understanding
perovskites,
particular
respect
surface
improved
stability
cells.
In
addition,
we
also
outline
important
issues
integrating
subcells
achieving
reliable
efficient
double-
multi-junction
tandems.
Future
work
should
focus
on
characterization
visualization
specific
defects,
tracking
evolution
under
different
external
stimuli,
guiding
turn
processing
stable
cell
devices.
Science,
Journal Year:
2024,
Volume and Issue:
384(6697), P. 767 - 775
Published: May 16, 2024
The
efficiency
and
longevity
of
metal-halide
perovskite
solar
cells
are
typically
dictated
by
nonradiative
defect-mediated
charge
recombination.
In
this
work,
we
demonstrate
a
vapor-based
amino-silane
passivation
that
reduces
photovoltage
deficits
to
around
100
millivolts
(>90%
the
thermodynamic
limit)
in
bandgaps
between
1.6
1.8
electron
volts,
which
is
crucial
for
tandem
applications.
A
primary-,
secondary-,
or
tertiary-amino-silane
alone
negatively
barely
affected
crystallinity
transport,
but
amino-silanes
incorporate
primary
secondary
amines
yield
up
60-fold
increase
photoluminescence
quantum
preserve
long-range
conduction.
Amino-silane-treated
devices
retained
95%
power
conversion
more
than
1500
hours
under
full-spectrum
sunlight
at
85°C
open-circuit
conditions
ambient
air
with
relative
humidity
50
60%.
