Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Сен. 20, 2024
Abstract
Tin‐lead
(Sn‐Pb)
mixed
perovskite
solar
cells
(PSCs),
which
serve
as
bottom
subcells
in
all‐perovskite
tandem
cells,
are
pivotal
for
developing
highly
efficient
cells.
However,
the
vulnerability
of
stannous
(Sn
2+
)
to
spontaneous
oxidation
harmful
tetravalent
tin
4+
presents
significant
challenges.
Here,
a
“mouse
glue
trap”
strategy
is
proposed
mitigate
this
issue
by
introducing
multifunctional
additive,
oxamidic
acid
potassium
salt
(OAPS).
This
approach
effectively
traps
undesired
Sn
impurities
through
strong
interactions
between
oxaminic
groups
OAPS
and
impurities.
Additionally,
OAPS,
with
its
unique
functional
groups,
can
inhibit
oxidation,
passivate
defects,
alleviate
stress,
improve
crystalline
quality
Sn‐Pb
films.
As
result,
enhanced
narrow‐bandgap
PSCs
incorporating
achieve
power
conversion
efficiency
22.04%
exhibit
improved
storage
stability,
91%
retention
after
3072
h
an
N
2
‐filled
glovebox.
Moreover,
using
OAPS‐incorporated
demonstrate
efficiencies
27.17%
28.31%
two‐terminal
four‐terminal
tandems,
respectively,
presenting
straightforward
optimizing
performance
their
tandems.
The Journal of Physical Chemistry Letters,
Год журнала:
2024,
Номер
15(15), С. 4015 - 4023
Опубликована: Апрель 5, 2024
Wide-bandgap
(WBG)
perovskites
play
a
crucial
role
in
perovskite-based
tandem
cells.
Despite
recent
advances
using
self-assembled
monolayers
(SAMs)
to
facilitate
efficiency
breakthroughs,
achieving
precise
control
over
the
deposition
of
such
ultrathin
layers
remains
significant
challenge
for
large-scale
fabrication
WBG
perovskite
and,
consequently,
modules.
To
address
these
challenges,
we
propose
facile
method
that
integrates
MeO-2PACz
and
Me-4PACz
optimal
proportions
(Mixed
SAMs)
into
precursor
solution,
enabling
simultaneous
codeposition
SAMs.
This
technique
promotes
spontaneous
formation
charge-selective
contacts
while
reducing
defect
densities
by
coordinating
phosphonic
acid
groups
with
unbonded
Pb2+
ions
at
bottom
interface.
The
resulting
solar
cells
(PSCs)
demonstrated
power
conversion
19.31%
small-area
devices
(0.0585
cm2)
17.63%
large-area
modules
(19.34
cm2),
highlighting
potential
this
strategy
fabricating
high-performance,
PSCs
enhanced
reproducibility.
These
findings
offer
valuable
insights
advancing
scalable
Advanced Science,
Год журнала:
2024,
Номер
unknown
Опубликована: Июль 30, 2024
Lately,
carbazole-based
self-assembled
monolayers
(SAMs)
are
widely
employed
as
effective
hole-selective
layers
(HSLs)
in
inverted
perovskite
solar
cells
(PSCs).
Nevertheless,
these
SAMs
tend
to
aggregate
solvents
due
their
amphiphilic
nature,
hindering
the
formation
of
a
monolayer
on
ITO
substrate
and
impeding
passivation
deep
defects
perovskites.
In
this
study,
series
new
including
DPA-B-PY,
CBZ-B-PY,
POZ-B-PY,
POZ-PY,
POZ-T-PY,
POZ-BT-PY
synthesized,
which
interfacial
repairers
coated
atop
CNph
SAM
form
robust
SAM@pseudo-planar
HSL
efficient
PSCs.
The
strategy
enables
well-aligned
interface
with
perovskites,
synergistically
promoting
crystal
growth,
improving
charge
extraction/transport,
minimizing
nonradiative
recombination
loss.
As
result,
POZ-BT-PY-modified
PSC
realizes
an
impressively
enhanced
efficiency
up
24.45%
together
fill
factor
82.63%.
Furthermore,
wide
bandgap
achieving
over
19%
efficiency.
Upon
treatment
monolayer,
also
demonstrates
non-fullerene
organic
photovoltaics
(OPVs)
based
PM6:BTP-eC9
blend,
achieves
17.07%.
Importantly,
modified
PSCs
OPVs
all
show
remarkably
improved
stability
under
various
testing
conditions
compared
control
counterparts.
Energy & Environmental Science,
Год журнала:
2024,
Номер
unknown
Опубликована: Янв. 1, 2024
Incorporating
dodecylphosphonic
acid
additives
into
1.77
eV-bandgap
perovskites
enabled
single-junction
solar
cells
to
achieve
a
PCE
of
20.2%.
Tandem
further
reached
impressive
PCEs
27.41%
(two-terminal)
and
28.65%
(four-terminal).
Abstract
Blade‐coating
has
emerges
as
a
critical
route
for
scalable
manufacturing
of
perovskite
solar
cells.
However,
the
N
2
knife‐assisted
blade‐coating
process
under
ambient
conditions
typically
yields
inferior‐quality
films
due
to
inadequate
nucleation
control
and
disorderly
rapid
crystallization.
To
address
this
challenge,
novel
solvent
engineering
strategy
is
developed
through
substitution
N‐methyl‐2‐pyrrolidone
(NMP)
with
1,3‐dimethyl‐1,3‐diazinan‐2‐one
(DMPU).
The
unique
physicochemical
properties
DMPU,
characterized
by
low
vapor
pressure,
strong
coordination
capability,
limited
PbI
solubility,
synergistically
regulate
crystallization
kinetics.
This
enables
nucleation,
stabilization
intermediate
phases
in
wet
films,
controlled
crystal
growth,
ultimately
producing
phase‐pure
reduced
defect
density.
Moreover,
feasibility
superiority
mixed
are
demonstrated.
optimized
blade‐coated
PSCs
achieve
power
conversion
efficiency
21.74%
enhanced
operational
stability,
retaining
84%
initial
continuous
1‐sun
illumination
1,000
h.
work
provides
new
insights
into
design
preparing
films.
Perovskite
solar
cells
(PSCs)
have
attracted
widespread
attention
due
to
their
low
cost
and
high
efficiency.
So
far,
a
variety
of
single‐junction
PSCs
been
successfully
developed
considered
for
commercialization,
including
normal
(N‐PSCs),
inverted
(I‐PSCs),
carbon‐based
(C‐PSCs)
without
hole
transporter.
Herein,
the
material
cost,
equipment
depreciation
energy
consumption
these
three
types
(1
m
2
)
in
detail
are
analyzed.
As
indicated,
total
fabrication
N‐PSCs
($86.49)
I‐PSCs
($81.31)
is
very
close,
but
significantly
reduced
$41.16
C‐PSCs
(49%–52%
reduction)
because
carbon
electrode
much
cheaper
than
noble
metal
organic
Besides,
only
low‐cost
slot‐die
coating
process
with
needed
deposition
electrode,
while
expensive
physical
vapor
reactive
plasma
processes
Advanced Energy Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 26, 2024
Abstract
This
5th
annual
“
Emerging
PV
Report”
highlights
the
latest
advancements
in
performance
of
emerging
photovoltaic
(e‐PV)
devices
across
various
e‐PV
research
areas,
as
documented
peer‐reviewed
articles
published
since
August
2023.
Updated
graphs,
tables,
and
analyses
are
provided,
showcasing
several
key
parameters,
including
power
conversion
efficiency,
open‐circuit
voltage,
short‐circuit
current,
fill
factor,
light
utilization
stability
test
energy
yield.
These
parameters
presented
functions
bandgap
average
visible
transmittance
for
each
technology
application
contextualized
using
benchmarks
such
detailed
balance
efficiency
limit.
Advanced Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 26, 2024
The
rapidly
increased
efficiency
of
perovskite
solar
cells
(PSCs)
indicates
their
broad
commercial
prospects,
but
the
commercialization
faces
complex
optimization
processes
and
stability
issues.
In
this
work,
a
simple
optimized
strategy
is
developed
by
addition
trimethylgermanium
chloride
(TGC)
into
FACsPbI
Energy Materials and Devices,
Год журнала:
2024,
Номер
2(2), С. 9370037 - 9370037
Опубликована: Май 30, 2024
Wide-bandgap
(WB)
mixed-halide
perovskite
solar
cells
(PSCs)
play
a
crucial
role
in
perovskite-based
tandem
(TSCs),
enabling
them
to
exceed
the
Shockley-Queisser
limits
of
single-junction
cells.
Nonetheless,
lack
stability
WB
films
due
photoinduced
phase
segregation
undermines
PSCs
and
their
TSCs,
thus
impeding
commercialization
TSCs.
Many
efforts
have
been
made
suppress
significant
progresses
obtained.
In
this
review,
we
elaborate
mechanisms
behind
its
impact
on
photovoltaic
performance
devices.
The
importance
advanced
characterization
techniques
confirming
are
comprehensively
summarized.
Beyond
that,
effective
strategies
alleviate
mixed
halide
systematically
assessed.
Finally,
prospects
for
developing
highly
efficient
stable
application
also
presented.
