Angewandte Chemie,
Journal Year:
2024,
Volume and Issue:
unknown
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 Energy Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 29, 2024
Abstract
The
study
designs
and
synthesizes
non‐planar,
propeller‐shaped
hexaarylbenzene‐type
(HAB)
compound
K5‐36
hexa‐
peri
‐hexabenzocoronene
(HBC)‐based
K5‐13
(with
a
cyclized
core),
as
cost‐effective
high‐yielding
hole
selective
layers
(HSLs)
for
perovskite
solar
cells
(PSC).
Using
p–i–n
device
structure
with
ITO/4PADCB/HAB
or
HBC
without)/perovskite/PDADI/PC
61
BM/BCP/Ag,
the
interaction
is
investigated
between
synthesized
materials
self‐assembled
monolayer
(4PADCB)
elucidating
mechanisms
influencing
growth
of
wide
bandgap
Cs
0.18
FA
0.82
Pb(I
0.8
Br
0.2
)
3
perovskite.
facilitates
films
larger
grains
lower
defect
density,
while
promoting
energy
level
alignment
at
HSL/perovskite
interface.
These
modifications
effectively
suppressed
non‐radiative
recombination,
resulting
in
higher
open‐circuit
voltage
1.2V
power
conversion
efficiency
(PCE)
exceeding
20%
under
AM
1.5G
conditions.
Under
3000K
LED
(1000
lux)
illumination,
PCE
4PADCB/
‐based
PSCs
significantly
increased
from
38.02
±
0.38%
(4PADCB
PSC)
to
41.80
0.57%.
Moreover,
incorporating
‐
demonstrate
exceptional
stability,
retaining
≈88.5%
98.2%
their
initial
after
70
days
storage
glove
box.
findings
highlight
potential
polyarene‐based
HSLs
promising
approach
improving
PSC
stability.
ChemSusChem,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 24, 2025
Hole
transport
layer
(HTL)-free
carbon-based
perovskite
solar
cells
(C-PSCs)
own
outstanding
potential
for
commercial
applications
due
to
their
attractive
advantages
of
low
cost
and
superior
stability.
However,
the
abundant
defects
mismatched
energy
levels
at
interface
perovskite/carbon
electrode
severely
limit
device
efficiency
Constructing
a
2D
on
surface
3D
films
form
2D/3D
heterojunctions
has
been
demonstrated
be
an
effective
method
passivating
optimizing
level
alignment
in
almost
all
kinds
PSCs.
Due
unique
structure
HTL-free
C-PSCs,
play
especially
important
roles.
This
review
article
summarizes
reports
C-PSCs.
It
describes
contributions
terms
roles
defect
passivation,
optimization,
stability
improvement.
Finally,
challenges
prospects
heterojunction
further
development
C-PSCs
are
highlighted.
Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 19, 2025
Abstract
Interfaces
pose
significant
challenges
to
the
performance
and
stability
of
perovskite
solar
cells
(PSCs),
as
defects
weak
interactions
at
these
boundaries
can
lead
energy
losses
degradation.
To
address
issues,
it
is
crucial
functionalize
hole
transport
materials
(HTMs)
effectively
manage
interfacial
enhance
charge
transfer.
This
study
introduces
a
carbazole‐based
layer
(TC‐ICA)
that
leverages
halogen
bonding
(XB)
for
enhanced
interface
passivation
with
carboxylic
group
anchoring
indium‐doped
tin
oxide
(ITO).
By
combining
functionalities,
TC‐ICA
material
leads
exceptional
device
(99%
shelf
over
320
days
air
storage
T
80
‐lifetime
exceeding
1000
h
under
light
soaking)
efficiency
(15.4%),
outperforming
single‐function
like
TC‐CA
(14.7%)
TC‐I
(10.7%).
dual‐function
strategy
marks
advancement
in
quest
high‐performance
long‐term
stable
PSCs.
Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 22, 2025
Abstract
The
application
of
self‐assembled
monolayers
(SAMs)
as
hole‐transporting
materials
has
greatly
improved
the
performance
inverted
perovskite
solar
cells.
Structure
engineering
SAMs
proven
to
be
an
effective
approach
enhance
device
performance.
In
this
work,
a
novel
SAM
featuring
extended
conjugation
is
designed
and
synthesized,
designated
E‐CbzBT.
Compared
with
CbzBT,
E‐CbzBT
exhibits
enhanced
asymmetric
noncoplanar
screw‐shaped
configuration,
leading
uniform
tight
packing
on
ITO.
increases
wettability
precursor
solution
substrate,
thereby
facilitating
crystallinity
suppressing
interfacial
trap
density
more
effectively
than
CbzBT.
Accordingly,
PSCs
employing
reach
champion
power
conversion
efficiency
25.15%,
surpassing
24.06%
for
CbzBT‐based
devices.
Importantly,
E‐CbzBT‐based
demonstrate
superior
ambient
thermal
stability.
extending
in
represents
promising
avenue
further
advancements
cell
technology.
Advanced Energy Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 24, 2025
Abstract
The
widespread
application
of
self‐assembled
monolayer
(SAM)
hole
transport
materials
has
driven
rapid
advancements
in
the
performance
inverted
perovskite
solar
cells
(PSCs).
However,
difficulty
achieving
a
highly
ordered
SAM
for
and
weak
binding
strength
between
layer
not
only
leads
to
defective
bottom
interface
but
also
reduces
compatibility
with
large‐area
device
fabrication.
In
this
work,
co‐assembled
molecule
functionalized
diamide
terminal
group
is
demonstrated
that
able
form
supramolecular
interaction
popular
carbazole‐based
SAMs
regulating
their
structural
ordering,
improve
chemical
bonding
Pb‐I
frameworks
synergistically,
which
enables
efficient
long‐term
stable
PSCs.
As
result,
target
contributes
champion
small‐area
power
conversion
efficiency
(PCE)
25.3%
(certified
25.0%),
demonstrates
good
fabrication
by
reproducible
performances
1.02
cm
2
devices.
encapsulated
devices
exhibit
stability
92.8%
91.2%
initial
PCE
after
1500
hours
aging
under
85
°C
maximum
point
(MPP)
tracking
at
65
hours,
respectively.
Nano Letters,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 4, 2025
Hole-selective
layers
(HSLs)
are
critical
for
efficient
and
stable
perovskite
solar
cells
(PSCs).
Chlorophylls
(Chls)
their
analogs
exhibit
unique
optoelectronic
properties,
making
them
attractive
photovoltaics.
However,
dopant-free
Chl-based
materials
remain
underexplored,
with
reported
power
conversion
efficiencies
(PCEs)
below
19%.
This
study
investigates
three
nickel
chlorins
(NiChls)
as
monomers
functional
materials.
Nickel
methyl
pyropheophorbide-a
(NiChl-Oxo),
derived
from
natural
Chl-a,
was
chemically
modified
at
the
C13-keto-carbonyl
group,
yielding
NiChl-Deoxo
NiChl-CN.
Electrochemical
polymerization
used
to
fabricate
corresponding
polymerized
NiChl
films
HSLs.
Without
dopants,
NiChl-Deoxo-based
PSCs
achieved
a
record
PCE
of
21.8%,
fill
factor
83.8%,
which
is
highest
efficiency
date.
Additionally,
these
devices
exhibited
exceptional
long-term
stability.
highlights
effectiveness
strategic
molecular
modifications
in
advancing
presents
promising
pathway
developing
high-performance,
HSLs
next-generation
PSCs.
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 24, 2025
Abstract
Self‐assembled
monolayers
(SAMs)
have
achieved
remarkable
success
in
the
realm
of
inverted
perovskite
solar
cells
(PSCs).
The
integration
two
distinct
SAMs,
referred
to
as
co‐SAM,
significantly
broadens
diversity
within
SAM
family
and
propels
enhancement
PSC
performance.
In
this
study,
a
co‐SAM
consisting
[4‐(3,6‐dimethoxy‐9H‐carbazol‐9‐yl)butyl]
phosphonic
acid
(MeO‐4PACz)
[2‐(3,6‐dimethyl‐9H‐carbazol‐9‐yl)
ethyl]
(Me‐2PACz)
is
sequentially
deposited
achieve
precisely
controlled
nanostructure.
It
unveiled
that
initial
deposition
step
governs
surface
wettability,
whereas
subsequent
dictates
energy
level
alignment.
Leveraging
meticulously
regulated
blade‐coated
attains
an
impressive
efficiency
25.01%,
retains
95.4%
its
after
2500
h
under
illumination,
maintains
86.7%
≈2000
at
85
°C.
This
research
delineates
novel
pathway
facilitate
large‐scale
manufacturing
PSCs.
