Tailored Colloidal Shapes in Precursor Solutions for Efficient Blade‐Coated Perovskite Solar Modules
Advanced Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 21, 2025
Abstract
Metal
halide
perovskite
solar
cells
(PSCs)
have
emerged
as
one
of
the
most
promising
candidates
for
next‐generation
photovoltaic
technologies.
However,
films
deposited
by
blade‐coating
usually
exhibit
inferior
film
morphology
compared
to
those
fabricated
spin‐coating,
which
hinders
power
conversion
efficiency
(PCE)
and
stability
scalable
modules
(PSMs).
Herein,
ellipsoidal
colloids
are
tailored
in
precursor
solution
incorporating
polymer
additives.
Compared
unregulated
spherical
colloids,
demonstrate
more
oriented
packing
during
process,
is
due
anisotropic
driven
force
from
fluidic
flow
meniscus.
As
a
result
improved
morphology,
regulated
PSCs
PSMs
achieve
superior
PCE
24.31%
21.67%
(21.37%
certified),
respectively,
aperture
areas
0.09
13.94
cm
2
,
89%
initial
after
600
h
continuous
operation.
Язык: Английский
Accelerating direct formation of α-FAPbl3 by dual-additives synergism for inverted perovskite solar cells with efficiency exceeding 26 %
Chemical Engineering Journal,
Год журнала:
2025,
Номер
505, С. 159056 - 159056
Опубликована: Янв. 6, 2025
Язык: Английский
Sweet Zwitterionic Aspartame for High‐Performance Wide‐Bandgap Perovskite Solar Cells and Tandem Devices
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 8, 2025
Abstract
The
development
of
high‐quality
wide‐bandgap
(WBG)
perovskite
films
is
essential
for
achieving
high‐efficiency
and
stable
tandem
solar
cells
(TSCs).
However,
WBG
perovskites
often
suffer
from
high
trap‐state
densities
significant
non‐radiative
recombination,
leading
to
substantial
voltage
losses.
To
address
these
challenges,
aspartame
(ASP),
a
food
sweetener,
designed
serve
as
multifunctional
additive
regulate
the
microstructure
precursor
solution
optimize
crystallization
dynamics,
enabling
fabrication
films.
resulting
exhibit
reduced
defect
density
enhanced
charge
extraction
properties.
Consequently,
single‐junction
(PSCs)
with
bandgap
1.67
eV
achieve
power
conversion
efficiency
(PCE)
23.20%,
while
perovskite/Si
TSCs
reach
PCE
30.68%.
Furthermore,
ASP‐treated
devices
photostability
operational
durability,
retaining
95%
their
initial
after
1900
h
in
ambient
conditions.
This
work
demonstrates
potential
molecular
engineering
through
zwitterionic
additives
optoelectronic
properties
stability
films,
paving
way
high‐performance
TSCs.
Язык: Английский