Buried Interface Passivation with 3,4,5-Trifluorophenylboronic Acid Enables Efficient and Stable Inverted Perovskite Solar Cells
ACS Applied Materials & Interfaces,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 7, 2025
The
p-i-n
type
perovskite
solar
cells
with
a
nickel
oxide
(NiOx)
hole
transport
layer
in
combination
self-assembled
monolayers
(SAMs)
have
high
power
conversion
efficiency
(PCE)
of
over
26%.
surface
properties
the
SAM
significant
impact
on
growth
and
crystallization
film.
In
meanwhile,
defects
formed
during
thermal
annealing
at
interface
would
act
as
charge
recombination
centers,
decreasing
device
performance
stability.
To
address
these
issues,
this
work
introduces
3,4,5-trifluorophenylboronic
acid
(3,4,5-3FPBA)
interfacial
modification
to
improve
buried
that
enable
better
With
3,4,5-3FPBA
layer,
based
composition
Cs0.05(FA0.98MA0.02)0.95Pb(I0.95Br0.05)3,
increased
from
21.99%
24.02%.
A
similar
improvement
was
observed
for
Cs0.05FA0.82MA0.13Pb(I0.85Br0.15)3,
where
21.87%
22.76%.
universality
has
been
confirmed.
addition,
resulting
showed
improved
stability,
maintaining
75%
its
initial
after
500
h
continuous
heating
85
°C
unencapsulated
devices.
Язык: Английский
Efficiency assessment of perovskite solar cells: A focus on hole transporting layers
Solar Energy,
Год журнала:
2024,
Номер
282, С. 112967 - 112967
Опубликована: Сен. 27, 2024
Язык: Английский
Quantitative Analysis of Perovskite Morphologies Employing Deep Learning Framework Enables Accurate Solar Cell Performance Prediction
Small,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 20, 2025
Abstract
In
perovskite
solar
cells,
grain
boundaries
are
considered
one
of
the
major
structural
defect
sites,
and
consequently
affect
cell
performance.
Therefore,
a
precise
edge
detection
grains
may
enable
to
predict
resulting
Herein,
deep
learning
model,
Self‐UNet,
is
developed
extract
quantify
morphological
information
such
as
boundary
length
(GBL),
number
(NG),
average
surface
area
(AGSA)
from
scanning
elecron
microscope
(SEM)
images.
The
Self‐UNet
excels
conventional
Canny
UNet
models
in
extraction;
Dice
coefficient
F1‐score
exhibit
high
91.22%
93.58%,
respectively.
accuracy
allows
for
not
only
identifying
tiny
stuck
between
relatively
large
grains,
but
also
distinguishing
actual
grooves
on
low
quality
SEM
images,
avoiding
under‐
or
over‐estimation
information.
Moreover,
gradient
boosted
decision
tree
(GBDT)
regression
integrated
exhibits
predicting
efficiency
with
relative
errors
less
than
10%
compared
experimentally
measured
efficiencies,
which
corroborated
by
results
literature
experiments.
Additionally,
GBL
can
be
verified
multiple
ways
new
feature.
Язык: Английский
Multifunctional Ruthenium Dye Assists PTAA-Based Inverted Perovskite Solar Cells
ACS Applied Materials & Interfaces,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 4, 2025
In
inverted
perovskite
solar
cells
(PSCs),
although
PTAA
(poly[bis(4-phenyl)(2,4,6-trimethylphenyl)amine])
has
been
extensively
utilized
as
a
hole
transport
material,
its
inherent
poor
wettability
and
energy
level
misalignment
with
have
become
critical
issues,
limiting
the
improvement
of
power
conversion
efficiency
(PCE)
long-term
stability
PSCs.
For
overcoming
these
challenges,
our
study
employs
typical
multifunctional
dye
molecule,
N719
(ditetrabutylammonium
cis-bis(isothiocyanato)bis(2,2'-bipyridyl-4,4'-dicarboxylato)
ruthenium(II)),
to
modify
PTAA.
Thanks
incorporation
hydrophilic
functional
groups
in
N719,
PTAA/N719
film
is
improved,
which
turn
boosts
crystallinity
film.
Additionally,
rich
can
interact
uncoordinated
Pb2+,
thereby
reducing
defect
state
density
perovskite.
Furthermore,
improved
alignment
enhances
extraction
capability.
Ultimately,
champion
device
fabricated
based
on
had
PCE
high
23.83%,
showing
significant
compared
unmodified
(20.80%).
Moreover,
N719-modified
devices
exhibited
superior
stability,
unencapsulated
maintaining
greater
than
81%
initial
value
after
being
stored
for
1500
h
under
ambient
conditions
at
room
temperature.
This
demonstrates
that
dyes
represent
promising
material
enhancing
performance
Язык: Английский
Perovskite Solar Cells: Challenges Facing Polymeric Hole Selective Materials in p–i–n Configuration
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 31, 2024
Abstract
Polymeric
hole‐selective
materials
(P‐HSMs)
offer
advantages
like
solution
processability,
tunable
energy
levels,
and
improved
mechanical
stability,
making
them
suitable
for
large‐scale
flexible
substrates.
Poly[bis(4‐phenyl)
(2,4,6‐trimethylphenyl)
amine]
(PTAA)
based
p–i–n
perovskite
solar
cells
exhibit
promising
power
conversion
efficiency
(PCE),
but
wettability,
dopant,
cost
challenges
necessitate
the
development
of
advanced
next‐generation
P‐HSMs.
To
provide
a
clear
understanding
structural
property
with
photovoltaic
performance,
this
review
classifies
such
newly
developed
P‐HSMs
into
five
distinct
categories.
Specifically,
discusses
current
status,
advancements,
challenges,
prospects
in
design
synthetic
variations,
focusing
on
enhancing
mitigating
surface
defects,
stability.
Notably,
incorporating
polar
units
enhances
wettability
mitigates
ion
instabilities
uncoordinated
lead
defects.
Promising
designs
polymeric
self‐assembled
monolayers
situ
polymerized
are
examined.
Despite
performance
emerging,
face
significant
as
limited
thermal
stress
analysis
(55–85
°C)
scalability
restricted
to
small‐scale
devices.
bridge
gap,
emphasizes
urgent
need
prioritizing
stability
testing
device
fabrication
future
research,
paving
way
commercial
viability
photovoltaics.
Язык: Английский