Advanced Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 2, 2025
Abstract
Perovskite/silicon
tandem
solar
cells
(TSCs)
are
promising
candidates
for
commercialization
due
to
their
outstanding
power
conversion
efficiencies
(PCEs).
However,
controlling
the
crystallization
process
and
alleviating
phases/composition
inhomogeneity
represent
a
considerable
challenge
perovskite
layers
grown
on
rough
silicon
substrates,
ultimately
limiting
efficiency
stability
of
TSC.
Here,
this
study
reports
“halide
locking”
strategy
that
simultaneously
modulates
nucleation
crystal
growth
wide
bandgap
perovskites
by
introducing
multifunctional
ammonium
salt,
thioacetylacetamide
hydrochloride
(TAACl),
bind
with
all
types
cations
anions
in
mixed
halide
precursor.
The
approach
not
only
enables
excellent
compositional
uniformity
wet‐film
stage
but
also
induces
preferred
orientation
along
(001)
plane
following
nucleation,
leading
enhanced
homogeneity
film
both
vertical
horizontal
directions
over
long‐length
scales.
resulting
wide‐bandgap
yield
exceptional
open‐circuit
voltage‐fill
factor
products
(
V
OC
×
FF)
1.074
1.040
small‐
(0.0414
cm
2
)
large‐area
(1.0208
devices,
respectively.
Corresponding
based
Tunnel
Oxide
Passivated
Contact
(TOPCon)
subcells
achieve
record
PCE
31.32%
remarkable
1.931
FF
81.54%.
Angewandte Chemie International Edition,
Год журнала:
2023,
Номер
62(52)
Опубликована: Ноя. 9, 2023
It
is
found
that
the
disordered
growth
of
bottom
perovskite
film
deteriorates
buried
interface
solar
cells
(PSCs),
so
developing
a
new
material
to
modify
for
regulating
crystal
and
defect
passivation
an
effective
approach
improving
photovoltaic
performance
PSCs.
Here,
we
developed
ionic
liquid
(ILC,
1-Dodecyl-3-methylimidazolium
tetrafluoroborate)
as
both
regulator
passivator
The
high
lattice
matching
between
this
ILC
promotes
preferential
along
[001]
direction,
while
oriented
with
mesomorphic
phase
has
strong
chemical
interaction
passivate
defect,
result,
modified
exhibits
suppressed
defects,
improved
band
alignment,
reduced
nonradiative
recombination
losses,
enhanced
charge
extraction.
ILC-modified
PSC
delivers
power
conversion
efficiency
24.92
%
maintains
94
original
value
after
storage
in
ambient
3000
h.
Energy & Environmental Science,
Год журнала:
2023,
Номер
17(5), С. 1781 - 1818
Опубликована: Дек. 5, 2023
Monolithic
perovskite-based
triple
junction
solar
cells
have
the
potential
to
surpass
power
conversion
efficiency
(PCE)
limits
of
single
and
dual-junction
cells.
Journal of Materials Chemistry A,
Год журнала:
2024,
Номер
12(13), С. 7847 - 7855
Опубликована: Янв. 1, 2024
TBAPF6
ionic
liquid
is
employed
to
treat
CsPbI3
perovskite
films,
and
thereby
low-dimensional
[TBA]PbI3
forms
on
the
surface
defects
are
passivated,
which
contribute
longer
moisture
stability
higher
PCE.
