Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(33)
Published: April 30, 2024
Abstract
Organic
self‐assembled
molecules
(OSAMs)
based
hole‐transporting
materials
play
a
pivotal
role
in
achieving
highly
efficient
and
stable
inverted
perovskite
solar
cells
(IPSCs).
However,
the
reported
carbazol‐based
OSAMs
have
serious
drawbacks,
such
as
poor
wettability
for
solution
spreading
due
to
nonpolar
surface,
worse
matched
energy
arrangement
with
perovskite,
limited
molecular
species,
which
greatly
limit
device
performance.
To
address
above
problems,
novel
OSAM
[4‐(3,6‐glycol
monomethyl
ether‐9H‐carbazol‐9‐yl)
butyl]phosphonic
acid
(GM‐4PACz)
was
synthesized
material
by
introducing
glycol
ether
(GM)
side
chains
at
carbazolyl
unit.
GM
groups
enhance
surface
of
Indium
Tin
Oxide
(ITO)/SAM
substrate
facilitate
nucleation
growth
up
film,
suppress
cation
defects,
release
residual
stress
SAM/perovskite
interface,
evaluate
level
matching
perovskite.
Consequently,
GM‐4PACz
IPSC
achieves
champion
PCE
25.52
%,
respectable
open‐circuit
voltage
(
V
OC
)
1.21
V,
high
stability,
possessing
93.29
%
91.75
their
initial
efficiency
after
aging
air
2000
h
or
tracking
maximum
power
point
1000
h,
respectively.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(16)
Published: Jan. 11, 2024
Abstract
[4‐(3,6‐dimethyl‐9H‐carbazol‐9yl)butyl]phosphonic
acid
(Me‐4PACz)
self‐assembled
molecules
(SAM)
are
an
effective
method
to
solve
the
problem
of
buried
interface
NiO
x
in
inverted
perovskite
solar
cells
(PSCs).
However,
Me‐4PACz
end
group
(carbazole
core)
cannot
forcefully
passivate
defects
at
bottom
film.
Here,
a
Co‐SAM
strategy
is
employed
modify
PSCs.
doped
with
phosphorylcholine
chloride
(PC)
form
improve
monolayer
coverage
and
reduce
leakage
current.
The
phosphate
ions
(Cl
−
)
PC
can
inhibit
surface
defects.
Meantime,
quaternary
ammonium
Cl
fill
organic
cations
halogen
vacancies
film
enable
passivation.
Moreover,
promote
growth
crystals,
collaboratively
defects,
suppress
nonradiative
recombination,
accelerate
carrier
transmission,
relieve
residual
stress
Consequently,
modified
devices
show
power
conversion
efficiencies
as
high
25.09%
well
excellent
device
stability
93%
initial
efficiency
after
1000
h
operation
under
one‐sun
illumination.
This
work
demonstrates
novel
approach
for
enhancing
performance
PSCs
by
modifying
on
.
Science,
Journal Year:
2024,
Volume and Issue:
383(6688), P. 1198 - 1204
Published: March 14, 2024
Printable
mesoscopic
perovskite
solar
cells
(p-MPSCs)
do
not
require
the
added
hole-transport
layer
needed
in
traditional
p-n
junctions
but
have
also
exhibited
lower
power
conversion
efficiencies
of
about
19%.
We
performed
device
simulation
and
carrier
dynamics
analysis
to
design
a
p-MPSC
with
mesoporous
layers
semiconducting
titanium
dioxide,
insulating
zirconium
conducting
carbon
infiltrated
that
enabled
three-dimensional
injection
photoexcited
electrons
into
dioxide
for
collection
at
transparent
conductor
layer.
Holes
underwent
long-distance
diffusion
toward
back
electrode,
this
separation
reduced
recombination
contact.
Nonradiative
bulk
dioxide/perovskite
interface
was
by
ammonium
phosphate
modification.
The
resulting
p-MPSCs
achieved
efficiency
22.2%
maintained
97%
their
initial
after
750
hours
maximum
point
tracking
55
±
5°C.
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
Advanced Energy Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: June 18, 2024
Abstract
Inverted
perovskite
solar
cells
(PSCs)
comprising
formamidinium‐cesium
(FA‐Cs)
lead
triiodide
have
garnered
considerable
attention
due
to
their
impressive
efficiency
and
remarkable
stability.
Nevertheless,
synthesizing
high‐quality
FA‐Cs
alloyed
films
presents
challenges,
primarily
attributable
the
intricate
interphase
process
involved
absence
of
methylammonium
(MA
+
)
mixed
halogens.
Here,
additive
3‐phosphonopropanoic
acid
(3‐PPA)
is
introduced,
with
bifunctional
phosphonic
groups,
into
precursor
modulate
crystal
growth
provide
passivation
at
grain
boundaries.
In
situ
characterization
reveals
that
3‐PPA
can
form
a
“rapid
nucleation,
slow
growth”
mechanism,
resulting
in
enlarged
grains
enhanced
crystallinity.
addition,
serves
passivate
boundary
defects
release
residual
strain
by
forming
molecular
bridging,
leading
passivated
achieving
fluorescence
lifetime
5.79
microseconds
favorable
n‐type
contact
interface.
As
result,
devices
incorporating
achieve
champion
power
conversion
(PCE)
24.05%
an
ultra‐high
fill
factor
(FF)
84.22%.
More
importantly,
optimized
exhibit
satisfactory
stability
under
various
testing
conditions.
The
findings
underscore
pivotal
role
multifunctional
additives
crystallization
control
defect
for
high‐performance
MA‐free
pure
iodine
PSCs.
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.
