ACS Materials Letters,
Journal Year:
2024,
Volume and Issue:
6(11), P. 5066 - 5075
Published: Oct. 14, 2024
Hybrid
sequential
deposition
(HSD)
of
perovskite
thin
films
is
highly
desirable
for
constructing
tandem
solar
cells
on
textured
silicon
substrates.
However,
in
the
second
step
HSD,
where
inorganic
and
organic
bilayers
undergo
thermal
interdiffusion
to
form
perovskite,
performance
often
limited
by
need
a
very
dry
environment
(inert
gas
atmosphere
or
air
with
relative
humidity
below
10%)
incomplete
reactions
throughout
film
thickness.
Here,
we
demonstrate
longitudinal
homogenized
intermediate
(LHI)
strategy
that
enables
preparation
HSD
perovskites
under
ambient
conditions
(25
°C,
30%–50%
humidity).
This
approach
circumvents
formation
capping
layer,
promoting
uniform
organic–inorganic
bilayer.
As
result,
efficiency
1.68
eV
processed
using
improved
from
16.42%
20.65%,
leading
an
28.55%
perovskite/silicon
cells.
Nature Communications,
Journal Year:
2024,
Volume and Issue:
15(1)
Published: June 8, 2024
Abstract
Perovskite/silicon
tandem
solar
cells
hold
great
promise
for
realizing
high
power
conversion
efficiency
at
low
cost.
However,
achieving
scalable
fabrication
of
wide-bandgap
perovskite
(~1.68
eV)
in
air,
without
the
protective
environment
an
inert
atmosphere,
remains
challenging
due
to
moisture-induced
degradation
films.
Herein,
this
study
reveals
that
extent
moisture
interference
is
significantly
influenced
by
properties
solvent.
We
further
demonstrate
n-Butanol
(nBA),
with
its
polarity
and
moderate
volatilization
rate,
not
only
mitigates
detrimental
effects
air
during
but
also
enhances
uniformity
This
approach
enables
us
achieve
impressive
29.4%
(certified
28.7%)
double-sided
textured
perovskite/silicon
featuring
large-size
pyramids
(2–3
μm)
26.3%
over
aperture
area
16
cm
2
.
advance
provides
a
route
large-scale
production
cells,
marking
significant
stride
toward
their
commercial
viability.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(46)
Published: June 22, 2024
Abstract
The
antisolvent‐assisted
spin‐coating
still
lags
behind
the
thermal
evaporation
method
in
fabricating
perovskite
films
atop
industrially
textured
silicon
wafers
making
monolithic
perovskite/silicon
solar
cells
(P/S‐TSCs).
inhomogeneity
of
hole‐selective
self‐assembled
monolayers
(SAMs)
often
arises
from
insufficient
bonding
between
hygroscopic
phosphonic
acid
anchors
and
metal
oxide.
To
address
this,
a
mixed‐SAM
strategy
(Mx‐SAM)
is
proposed
to
enhance
adsorption
energy
SAMs
on
ITO
surface,
facilitate
formation
dense
humidity‐resistant
layer
(HSL)
substrates,
improve
hole
transport
capabilities.
With
aid
Mx‐SAM
strategy,
optimized
wide‐bandgap
PSCs
achieved
an
impressive
power
conversion
efficiency
(PCE)
22.63%
with
exceptionally
high
fill
factor
(
FF
)
86.67%
using
1.68
eV
perovskite.
Moreover,
they
exhibited
enhanced
stability
under
damp‐heat
conditions
(ISOS‐D‐3,
85%
RH,
85
°C)
T
90
900
h
for
encapsulated
PSCs,
representing
one
best
performances
PSCs.
When
further
extending
P/S‐TSCs
industry,
remarkable
28.07%
reached
while
upholding
outstanding
reproducibility.
This
holds
significant
promise
feasibility
industrially‐compatible
P/S‐TSCs.
Nanomaterials,
Journal Year:
2024,
Volume and Issue:
14(2), P. 202 - 202
Published: Jan. 16, 2024
Perovskite/silicon
tandem
solar
cells
have
garnered
considerable
interest
due
to
their
potential
surpass
the
Shockley–Queisser
limit
of
single-junction
Si
cells.
The
rapidly
advanced
efficiencies
perovskite/silicon
benefit
from
significant
improvements
in
perovskite
technology.
Beginning
with
evolution
wide
bandgap
towards
two-terminal
(2T)
cells,
this
work
concentrates
on
component
engineering,
additives,
and
interface
modification
Furthermore,
advancements
2T
are
presented,
influence
central
interconnect
layer
cell
progression
is
emphasized.
Finally,
we
discuss
challenges
obstacles
associated
conducting
a
thorough
analysis
providing
prospect
for
future.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: July 16, 2024
Abstract
Mixed
tin–lead
(Sn–Pb)
perovskites
often
face
a
daunting
challenge:
rapid
and
uncontrollable
crystallization,
leading
to
plethora
of
defects
significant
stress.
This
issue
is
particularly
exacerbated
during
the
blade‐coating
preparation
scalable
Sn–Pb
perovskite
films.
In
this
study,
facile
strategy
involving
addition
ammonium
citrate
(AC)
narrow‐bandgap
mixed
precursors
introduced.
AC,
armed
with
its
arsenal
multiple
carboxyl
amino
groups,
acts
as
virtuoso
conductor,
orchestrating
controlled
crystal
growth
by
harmonizing
Pb
2+
Sn
ions.
significantly
boosts
crystallinity
films,
alleviates
interface
stress,
inhibits
oxidation,
mitigates
interfacial
defects.
Consequently,
The
blade‐coated
AC‐incorporated
solar
cells
achieve
high
photovoltaic
conversion
efficiency
nearly
21%.
Furthermore,
extending
two‐terminal
all‐perovskite
tandem
yielded
remarkable
maximum
27.20%.
work
presents
an
effective
for
producing
efficient
cells,
heralding
pathway
toward
fabrication
cells.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(36)
Published: June 11, 2024
Abstract
Developing
large‐scale
monolithic
perovskite/silicon
tandem
devices
based
on
industrial
Czochralski
silicon
wafers
will
likely
have
to
adopt
double‐side
textured
architecture,
given
their
optical
benefits
and
low
manufacturing
costs.
However,
the
surface
engineering
strategies
that
are
widely
used
in
solution‐processed
perovskites
regulate
interface
properties
not
directly
applicable
micrometric
textures.
Here,
we
devise
a
passivation
strategy
by
dynamic
spray
coating
(DSC)
fluorinated
thiophenethylammonium
ligands,
combining
advantages
of
providing
conformal
coverage
suppressing
phase
conversion
surfaces.
From
viewpoint
molecular
engineering,
theoretical
calculation
experimental
results
demonstrate
introducing
trifluoromethyl
group
provide
more
effective
through
strong
interaction
energy
alignment
forming
dipole
layer.
Consequently,
DSC
treatment
this
bifunctional
molecule
enables
cells
achieve
certified
stabilized
power
efficiency
30.89
%.
In
addition,
encapsulated
display
excellent
operational
stability
retaining
over
97
%
initial
performance
after
600
h
continuous
illumination.
