ACS Energy Letters,
Год журнала:
2024,
Номер
9(11), С. 5471 - 5482
Опубликована: Окт. 21, 2024
Molecular
materials
with
high
structure-design
freedom
are
used
as
new
interface
passivators
to
reduce
nonradiative
recombination
in
inverted
perovskite
solar
cells
(PSCs).
However,
most
molecular
modifiers
unable
achieve
a
long-term
passivation
effect
due
self-aggregation.
Here,
the
modifier
1-methyl-2-thiomethyl-1H-imidazole-5-carboxylate
(SMC)
ester
and
thiol
groups
is
carefully
developed.
The
weaken
self-aggregation
triggered
by
intermolecular
hydrogen
bonds,
making
such
aggregations
easier
disassemble
during
heating
form
net-like
insulating
layer
random
openings,
which
dramatically
increase
charge
transport.
More
importantly,
electron
transfer
between
disulfide
can
accelerate
elimination
of
Pb0
I2
redox
reactions
prevent
phase
separation.
Ultimately,
optimized
PSCs
bandgaps
1.68
1.55
eV
showed
surprising
fill
factors
84.83%
86.18%,
resulting
champion
efficiencies
23.45%
(certified
22.98%,
highest
date
for
wide-bandgap)
25.71%
25.28%),
respectively.
Remarkably,
both
unencapsulated
devices
maintained
over
94%
their
initial
efficiency
under
maximum
power
point
tracking
600
h
(50
°C)
1000
(65
°C),
respectively,
confirming
impressive
operational
stability.
ACS Nano,
Год журнала:
2024,
Номер
18(16), С. 10688 - 10725
Опубликована: Апрель 11, 2024
Metal-halide
perovskite
solar
cells
(PSCs),
an
emerging
technology
for
transforming
energy
into
a
clean
source
of
electricity,
have
reached
efficiency
levels
comparable
to
those
commercial
silicon
cells.
Compared
with
other
types
PSCs,
inverted
(IPSCs)
shown
promise
regard
commercialization
due
their
facile
fabrication
and
excellent
optoelectronic
properties.
The
interlayer
interfaces
play
important
role
in
the
performance
cells,
not
only
affecting
charge
transfer
transport,
but
also
acting
as
barrier
against
oxygen
moisture
permeation.
Herein,
we
describe
summarize
last
three
years
studies
that
advantages
interface
engineering-based
advances
IPSCs.
This
review
includes
brief
introduction
structure
working
principle
IPSCs,
analyzes
how
affect
IPSC
devices
from
perspective
photovoltaic
device
lifetime.
In
addition,
comprehensive
summary
various
engineering
approaches
solving
these
problems
challenges
including
use
interlayers,
modification,
defect
passivation,
others,
is
summarized.
Moreover,
based
upon
current
developments
breakthroughs,
fundamental
perspectives
on
future
pathways
are
provided
innovation
design
next-generation
Angewandte Chemie International Edition,
Год журнала:
2024,
Номер
63(17)
Опубликована: Март 4, 2024
Abstract
The
perovskite/silicon
tandem
solar
cell
(TSC)
has
attracted
tremendous
attention
due
to
its
potential
breakthrough
the
theoretical
efficiency
set
for
single‐junction
cells.
However,
perovskite
(PSC)
designed
as
top
component
suffers
from
severe
photo‐induced
halide
segregation
owing
mixed‐halide
strategy
achieving
desirable
wide‐bandgap
(1.68
eV).
Developing
pure‐iodide
perovskites
is
a
promising
route
fabricate
photostable
TSCs.
Here,
we
report
efficient
and
PSCs
made
an
anti‐solvent‐free
(ASF)
technique.
ASF
process
achieved
by
mixing
two
precursor
solutions,
both
of
which
are
capable
depositing
corresponding
films
without
involving
anti‐solvent.
mixed
solution
finally
forms
Cs
0.3
DMA
0.2
MA
0.5
PbI
3
film
with
bandgap
1.68
eV.
Furthermore,
methylammonium
chloride
additive
applied
enhance
crystallinity
reduce
trap
density
films.
As
result,
PSC
delivers
high
21.30
%
excellent
photostability,
highest
this
type
method
significantly
improves
device
reproducibility
compared
devices
other
anti‐solvent
methods.
Our
findings
provide
novel
recipe
prepare
PSCs.
Advanced Energy Materials,
Год журнала:
2024,
Номер
14(26)
Опубликована: Апрель 25, 2024
Abstract
Tandem
solar
cells
combining
perovskite
and
silicon
have
witnessed
rapid
development
in
recent
years.
However,
the
top
cell,
utilizing
wide‐bandgap
as
absorbers
generally
suffer
significant
open‐circuit
voltage
(
V
OC
)
deficit,
particularly
for
inorganic
perovskite,
which
poses
a
considerable
obstacle
to
enhancing
power
conversion
efficiency
(PCE).
Here,
modulation
strategy
by
using
2,6‐pyridinedicarboxamide
(PC),
crystallization
kinetics
of
film
can
be
effectively
regulated,
specifically
manifested
relatively
longer
annealing
time
air,
resulting
sufficient
growth
grains.
Additionally,
PC
situ
passivate
uncoordinated
Pb
2+
,
suppressing
non‐radiative
recombination
charge
carriers.
Eventually,
record
PCE
22.07%
is
achieved
based
on
n–i–p
(IPSCs),
also
demonstrate
highest
above
1.34
(1.71
eV
bandgap).
More
importantly,
unencapsulated
IPSCs
show
enhanced
thermal
stability
photostability.
Furthermore,
are
applied
perovskite/silicon
tandem
(IPTSCs),
27.27%
an
impressive
2.024
obtained.
Angewandte Chemie International Edition,
Год журнала:
2024,
Номер
63(19)
Опубликована: Фев. 24, 2024
Abstract
Inorganic
perovskite
solar
cells
(IPSCs)
have
gained
significant
attention
due
to
their
excellent
thermal
stability
and
suitable
band
gap
(~1.7
eV)
for
tandem
cell
applications.
However,
the
defect‐induced
non‐radiative
recombination
losses,
low
charge
extraction
efficiency,
energy
level
mismatches,
so
on
render
fabrication
of
high‐efficiency
inverted
IPSCs
remains
challenging.
Here,
use
3‐amino‐5‐bromopyridine‐2‐formamide
(ABF)
in
methanol
was
dynamically
spin‐coated
surface
CsPbI
2.85
Br
0.15
film,
which
facilitates
limited
etching
defect‐rich
subsurface
layer,
resulting
formation
vertical
PbI
2
nanosheet
structures.
This
enabled
localized
contacts
between
film
electron
transport
suppress
electron‐hole
beneficial
extraction.
Additionally,
C=O
C=N
groups
ABF
effectively
passivated
undercoordinated
Pb
2+
at
grain
boundaries
film.
Eventually,
we
achieved
a
champion
efficiency
20.80
%
(certified
20.02
%)
with
enhanced
stability,
is
highest
value
ever
reported
date.
Furthermore,
successfully
prepared
p‐i‐n
type
monolithic
inorganic
perovskite/silicon
(IPSTSCs)
an
26.26
%.
strategy
provided
both
fast
efficient
passivation
electron‐selective
interface.
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 20, 2024
Abstract
Due
to
its
soft
lattice
characteristics,
all‐inorganic
cesium
lead
halide
(CsPbI
3‐x
Br
x
)
perovskite
is
vulnerable
external
environmental
stress
such
as
moisture,
polar
solvent,
illumination.
resulting
in
structural
defects
(V
I
,
i
etc.)
and
ion
mobility.
However,
most
of
the
prior
arts
focus
on
short‐term
static
passivation,
which
has
a
negligible
effect
formed
during
solar
cell
operation.
Herein,
photoisomerizable
molecule,
1,3,3‐trimethylindolino‐8′‐methoxybenzopyrylospiran
(OMe‐SP),
exhibiting
light‐driven
pre‐isomeric
(SP)
post‐isomeric
(PMC)
configurations,
employed
an
interfacial
protective
layer
top
CsPbI
.
The
present
strategy
not
only
effectively
suppresses
migration
halogen
ions,
but
also
enables
sustainable
passivation
defects,
thereby
significantly
reducing
charge
recombination
retarding
degradation.
Consequently,
OMe‐SP‐modified
cells
(PSCs)
exhibit
superior
stability,
maintaining
91%
their
initial
efficiency
after
aging
1032
h
under
maximum
power
point
(MPP)
tracking
continuous
one
sun
Meanwhile,
achieves
impressive
conversion
22.20%,
stands
highest
among
cells.
Overall,
implementation
this
robust
provides
defect
suppression
for
achieving
both
high
PCE
stable
inorganic
perovskite.
Advanced Functional Materials,
Год журнала:
2023,
Номер
34(10)
Опубликована: Ноя. 21, 2023
Abstract
To
simultaneously
stabilize
cesium
lead
triiodide
(CsPbI
3
)
precursor
solution
and
passivate
the
defects
in
CsPbI
film
is
greatly
significant
for
achieving
highly
stable
efficient
perovskite
solar
cells
(PSCs).
Herein,
an
effective
redox
4‐fluorobenzothiohydrazide
(FBTH)
developed
to
iodine/lead‐related
high‐quality
film.
The
comprehensive
research
confirms
that
1)
a
new
compound
FBTH‐I
obtained
from
interaction
between
FBTH
molecular
iodine
(I
2
solution,
which
can
effectively
impede
formation
of
I
molecule
restrain
−
migration
by
forming
N–H···I
bond;
2)
also
Pb‐related
via
S···Pb
interaction.
Consequently,
PSC
based
on
FBTH‐treated
exhibits
fascinating
power
conversion
efficiency
(PCE)
21.41%,
one
highest
PCE
values
among
reported
pure
PSCs
so
far,
outstanding
stability
against
harsh
conditions,
such
as
thermal
annealing
continuous
light‐illumination.
Angewandte Chemie,
Год журнала:
2024,
Номер
136(19)
Опубликована: Фев. 24, 2024
Abstract
Inorganic
perovskite
solar
cells
(IPSCs)
have
gained
significant
attention
due
to
their
excellent
thermal
stability
and
suitable
band
gap
(~1.7
eV)
for
tandem
cell
applications.
However,
the
defect‐induced
non‐radiative
recombination
losses,
low
charge
extraction
efficiency,
energy
level
mismatches,
so
on
render
fabrication
of
high‐efficiency
inverted
IPSCs
remains
challenging.
Here,
use
3‐amino‐5‐bromopyridine‐2‐formamide
(ABF)
in
methanol
was
dynamically
spin‐coated
surface
CsPbI
2.85
Br
0.15
film,
which
facilitates
limited
etching
defect‐rich
subsurface
layer,
resulting
formation
vertical
PbI
2
nanosheet
structures.
This
enabled
localized
contacts
between
film
electron
transport
suppress
electron‐hole
beneficial
extraction.
Additionally,
C=O
C=N
groups
ABF
effectively
passivated
undercoordinated
Pb
2+
at
grain
boundaries
film.
Eventually,
we
achieved
a
champion
efficiency
20.80
%
(certified
20.02
%)
with
enhanced
stability,
is
highest
value
ever
reported
date.
Furthermore,
successfully
prepared
p‐i‐n
type
monolithic
inorganic
perovskite/silicon
(IPSTSCs)
an
26.26
%.
strategy
provided
both
fast
efficient
passivation
electron‐selective
interface.
Applied Physics Reviews,
Год журнала:
2024,
Номер
11(3)
Опубликована: Июль 1, 2024
The
rapid
success
achieved
from
perovskite
solar
cell
has
drawn
great
expectations
for
commercialization
of
next-generation
photovoltaics.
Among
the
various
materials,
inorganic
derivatives
have
been
particular
interest,
ascribed
to
its
superior
thermal
and
chemical
stability,
which
is
a
crucial
criterion
reliable
long-term
operation.
Nonetheless,
development
efficient
cells
lagged
organic–inorganic
hybrid
counterparts
owing
notorious
phase-stability
challenges
associated
with
formation
non-photoactive
phases.
early
progress
centered
on
stable
phase-preparation
leads
effective
bulk
management
through
intermediate
engineering
compositional
strategies.
Yet,
remain
in
securing
as-formed
phase
throughout
Accordingly,
recent
studies
find
interfacial
modification
strategies
successful
by
constricting
phase-transformation
channels
perspectives
such
as
defect
propagation,
strain,
component
segregation,
charge
accumulation,
external
stresses.
In
this
review,
we
start
brief
description
advantages
including
optoelectronic
properties.
We
then
provide
review
instabilities.
elaborate
origins
instabilities
terms
thermodynamics
recently
proposed
intrinsic
factors
extrinsic
that
facilitate
detrimental
transformation.
Finally,
survey
approaches
stabilize
interface
managements
outlook
further
progress.