Advanced Materials,
Год журнала:
2023,
Номер
36(12)
Опубликована: Апрель 19, 2023
Abstract
With
the
rapid
rise
in
device
performance
of
perovskite
solar
cells
(PSCs),
overcoming
instabilities
under
outdoor
operating
conditions
has
become
most
crucial
obstacle
toward
their
commercialization.
Among
stressors
such
as
light,
heat,
voltage
bias,
and
moisture,
latter
is
arguably
critical,
it
can
decompose
metal‐halide
(MHP)
photoactive
absorbers
instantly
through
its
hygroscopic
components
(organic
cations
metal
halides).
In
addition,
charge
transport
layers
(CTLs)
commonly
employed
PSCs
also
degrade
presence
water.
Furthermore,
photovoltaic
module
fabrication
encompasses
several
steps,
laser
processing,
subcell
interconnection,
encapsulation,
during
which
are
exposed
to
ambient
atmosphere.
Therefore,
a
first
step
long‐term
stable
photovoltaics,
vital
engineer
materials
maximizing
moisture
resilience,
be
accomplished
by
passivating
bulk
MHP
film,
introducing
passivation
interlayers
at
top
contact,
exploiting
hydrophobic
CTLs,
encapsulating
finished
devices
with
barrier
layers,
without
jeopardizing
performance.
Here,
existing
strategies
for
enhancing
stability
reviewed
pathways
moisture‐resilient
commercial
formulated.
Perovskite/silicon
tandem
solar
cells
offer
a
promising
route
to
increase
the
power
conversion
efficiency
of
crystalline
silicon
(c-Si)
beyond
theoretical
single-junction
limitations
at
an
affordable
cost.
In
past
decade,
progress
has
been
made
toward
fabrication
highly
efficient
laboratory-scale
tandems
through
range
vacuum-
and
solution-based
perovskite
processing
technologies
onto
various
types
c-Si
bottom
cells.
However,
become
commercial
reality,
transition
from
laboratory
industrial
will
require
appropriate,
scalable
input
materials
manufacturing
processes.
addition,
perovskite/silicon
research
needs
increasingly
focus
on
stability,
reliability,
throughput
cell
production
characterization,
cell-to-module
integration,
accurate
field-performance
prediction
evaluation.
This
Review
discusses
these
aspects
in
view
contemporary
manufacturing,
offers
insights
into
possible
pathways
photovoltaics,
highlights
opportunities
realize
this
goal.
Advanced Energy Materials,
Год журнала:
2023,
Номер
13(8)
Опубликована: Янв. 4, 2023
Abstract
Engineering
of
the
interface
between
perovskite
absorber
thin
films
and
charge
transport
layers
has
fueled
development
solar
cells
(PSCs)
over
past
decade.
For
p‐i‐n
PSCs,
adoption
hole
utilizing
self‐assembled
monolayers
(SAM‐HTLs)
based
on
carbazole
functional
groups
with
phosphonic
acid
anchoring
enabled
almost
lossless
contacts,
minimizing
interfacial
recombination
to
advance
power
conversion
efficiency
in
single‐junction
tandem
cells.
However,
so
far
these
materials
have
been
deposited
exclusively
via
solution‐based
methods.
Here,
for
first
time,
vacuum‐based
evaporation
most
common
carbazole‐based
SAM‐HTLs
(2PACz,
MeO‐2PACz,
Me‐4PACz)
is
reported.
X‐ray
photoelectron
spectroscopy
infrared
demonstrate
no
observable
chemical
differences
evaporated
SAMs
compared
solution‐processed
counterparts.
Consequently,
near
properties
are
either
preserved
or
even
slightly
improved
as
demonstrated
photoluminescence
measurements
an
enhancement
open‐circuit
voltage.
Strikingly,
applying
complete
PSCs
demonstrates
comparable
performance
their
Furthermore,
vacuum
deposition
found
improve
wetting
fabrication
yield
previously
non‐ideal
(namely
display
conformal
high‐quality
coating
micrometer‐sized
textured
surfaces,
improving
versatility
without
sacrificing
beneficial
properties.
Nature Communications,
Год журнала:
2022,
Номер
13(1)
Опубликована: Дек. 2, 2022
Abstract
Inverted
perovskite
solar
cells
still
suffer
from
significant
non-radiative
recombination
losses
at
the
surface
and
across
perovskite/C
60
interface,
limiting
future
development
of
perovskite-based
single-
multi-junction
photovoltaics.
Therefore,
more
effective
inter-
or
transport
layers
are
urgently
required.
To
tackle
these
losses,
we
introduce
ortho-carborane
as
an
interlayer
material
that
has
a
spherical
molecular
structure
three-dimensional
aromaticity.
Based
on
variety
experimental
techniques,
show
decorated
with
phenylamino
groups
effectively
passivates
essentially
eliminates
loss
interface
high
thermal
stability.
We
further
demonstrate
potential
carborane
electron
material,
facilitating
extraction
while
blocking
holes
interface.
The
resulting
inverted
deliver
power
conversion
efficiency
over
23%
low
voltage
110
mV,
retain
>97%
initial
after
400
h
maximum
point
tracking.
Overall,
designed
based
simultaneously
enables
passivation,
electron-transport
hole-blocking
paves
way
toward
efficient
stable
cells.
Nano-Micro Letters,
Год журнала:
2023,
Номер
15(1)
Опубликована: Март 21, 2023
Perovskite-based
tandem
solar
cells
have
attracted
increasing
interest
because
of
its
great
potential
to
surpass
the
Shockley-Queisser
limit
set
for
single-junction
cells.
In
architectures,
wide-bandgap
(WBG)
perovskites
act
as
front
absorber
offer
higher
open-circuit
voltage
(V
Advanced Materials,
Год журнала:
2023,
Номер
35(9)
Опубликована: Янв. 4, 2023
Monolithic
perovskite/silicon
tandem
solar
cells
promise
power-conversion
efficiencies
(PCEs)
exceeding
the
Shockley-Queisser
limit
of
single-junction
cells.
The
conformal
deposition
perovskites
on
industrially
feasible
textured
silicon
allows
for
both
lowered
manufacturing
costs
and
a
higher
matched
photocurrent
density,
compared
to
state-of-the-art
tandems
using
front-side
flat
or
mildly
silicon.
However,
inferior
crystal
quality
perovskite
films
grown
fully-textured
compromises
photovoltaic
performance.
Here,
an
anion-engineered
additive
strategy
is
developed
control
crystallization
process
wide-bandgap
films,
which
enables
improved
film
crystallinity,
reduced
trap
This
fabrication
28.6%-efficient
heterojunction
(certified
27.9%,
1
cm2
).
approach
compatible
with
scalable
silicon,
demonstrating
efficiency
25.1%
aperture
area
16
.
significantly
improves
operating
stability
cells,
encapsulated
retain
over
80%
their
initial
performance
following
2000
h
operation
under
full
1-sun
illumination
in
ambient
conditions.
ACS Energy Letters,
Год журнала:
2023,
Номер
8(2), С. 898 - 900
Опубликована: Янв. 6, 2023
The
wettability
issue
associated
with
the
Me-4PACz
hole-selective
monolayer
is
solved
by
introduction
of
second
component
to
precursor
solution.
This
results
in
a
similar
performance
while
simultaneously
significantly
improving
yield
devices.
Advanced Functional Materials,
Год журнала:
2023,
Номер
33(13)
Опубликована: Фев. 2, 2023
Abstract
The
poor
interface
quality
between
nickel
oxide
(NiO
x
)
and
halide
perovskites
limits
the
performance
stability
of
NiO
‐based
perovskite
solar
cells
(PSCs).
Here
a
reactive
surface
modification
approach
based
on
in
situ
decomposition
urea
is
reported.
pyrolysis
can
reduce
high‐valence
state
replace
adsorbed
hydroxyl
group
with
isocyanate.
Combining
theoretical
experimental
analyses,
treated
films
present
suppressed
states
improved
transport
energy
level
alignment
absorber.
With
this
strategy,
PSCs
achieve
champion
power
conversion
efficiency
(PCE)
23.61%
fill
factor
over
86%.
device's
remains
above
90%
after
2000
h
thermal
aging
at
85
°C.
Furthermore,
modules
PCE
values
18.97%
17.18%
for
areas
16
196
cm
2
,
respectively.
