Lead
sulfide
(PbS)
quantum
dots
(QDs)
and
lead
halide
perovskites
(LHPs)
have
emerged
as
highly
promising
materials
for
high‐efficiency
photovoltaics.
PbS
QDs
offer
size‐dependent
bandgaps
in
the
infrared
region
potential
multiple
exciton
generation,
while
LHPs
feature
tunable
bandgaps,
high
absorption
coefficients,
long
carrier
diffusion
lengths
visible
spectrum.
This
review
focuses
on
two
primary
approaches
to
breaking
Shockley–Queisser
(S–Q)
limit
based
combinations
of
these
semiconducting
materials:
1)
monolithic
2‐terminal
tandem
photovoltaics
with
complementary
spectral
absorption;
2)
intermediate‐band
solar
cells
(IBSCs)
leveraging
within
a
LHP
matrix.
Due
ideally
spectrum
LHPs,
emphasis
is
placed
prevailing
strategies
enhancing
efficiency,
addressing
major
challenges
rational
designs
device
optimizations.
Then,
key
obstacles
including
surface
passivation,
solvent
compatibility,
limited
performance
small‐bandgap
QD
are
analyzed,
along
various
solutions
cells.
For
IBSCs,
evolution
architecture
unique
advantages
their
combination
outlined
detail.
Finally,
this
provides
comprehensive
outlook
future
research
directions
develop
efficient
IBSC
devices
S–Q
limit.
ACS Applied Energy Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 12, 2025
We
present
a
structural
design
for
four-terminal
III–V/crystalline
silicon
(c-Si)
multijunction
(MJ)
device
based
on
optimized
bifacial
illumination.
The
proposed
configuration
consists
of
triple-junction
top
cell
incorporating
gallium
indium
phosphide
(GaInP),
arsenide
(InGaAs),
and
germanium
(Ge),
paired
with
tunnel
oxide
passivating
contact
(TOPCon)
as
the
bottom
cell.
TOPCon
effectively
enhances
transmission
albedo-reflected
light
into
c-Si
absorber,
delivering
superior
performance
compared
to
conventional
heterojunction
cells.
With
an
additional
rear
illumination
0.3
sun,
efficiency
increases
by
9.61%.
Bifacial
overall
MJ
20.77%
monofacial
device.
power
conversion
(PCE)
GaInP/InGaAs/Ge/TOPCon
devices
reaching
35.70%,
this
demonstrates
significant
potential
advancing
high-efficiency
solar
technologies.
Advanced Materials Technologies,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 25, 2024
Abstract
Wide‐bandgap
(WBG)
perovskite
solar
cells
(PSC)
have
been
widely
applied
in
tandem
photovoltaics
(PV)
for
various
scenarios
including
indoor,
building,
and
underwater
PV.
However,
the
current
mainstream
WBG
PSCs
are
fabricated
by
spin‐coating,
which
is
inappropriate
scalable
production.
Blade‐coating
has
demonstrated
great
potential
to
realize
commercial
PV
panel
size
at
low
cost,
while
till
present,
only
a
few
efforts
devoted
blade‐coated
PSCs,
significantly
hampering
their
efficiency
evolvements.
Herein,
state‐of‐the‐art
research
progress
major
challenges
of
reviewed,
with
optimization
strategies
being
summarized
into
four
main
categories,
such
as
blading
parameter,
solvent
engineering,
additive/dopant,
defect
passivation.
Film
homogenization,
manipulation,
optimized
blade
coating
machines,
single‐halide
three‐dimensional
perovskites,
fabrication
on
textured
substrate
proposed
five
promising
directions
future
investigations
high‐performance
PSCs.
Materials for Renewable and Sustainable Energy,
Год журнала:
2025,
Номер
14(1)
Опубликована: Фев. 4, 2025
Abstract
In
the
pursuit
of
higher
conversion
efficiency,
PV
industry
has
turned
its
focus
towards
perovskite-silicon
tandem
solar
cells,
which
currently
represent
peak
innovation.
To
surpass
efficiency
limits
traditional
single-junction
researchers
are
exploring
potential
these
cells
by
integrating
merits
perovskite
and
silicon.
However,
brings
different
challenges,
such
as
deposition
methods
material
misalignments.
Thus,
in
this
work,
we
using
advanced
simulation
techniques,
including
Silvaco
ATLAS’s
Victory
Process
Device
Simulator
to
imitate
actual
manufacturing
processes.
Primarily
research
work
focuses
on
three
scenarios:
shunting,
planarization
conformal
emulate
experimental
conditions.
The
obtained
results
show
effectiveness
process
simulations
accurately
predicting
improving
performance
cell.
Two
designed
showed
a
27.51%
29.08%
respectively.
This
highlights
importance
tools
for
further
development
cell
technology.
Detailed
device
reported
may
pave
way
fabrication
optimised
perovskite/silicon
Nano-Micro Letters,
Год журнала:
2025,
Номер
17(1)
Опубликована: Фев. 11, 2025
Abstract
Despite
significant
advancements
in
the
power
conversion
efficiency
(PCE)
of
perovskite/silicon
tandem
solar
cells,
improving
carrier
management
top
cells
remains
challenging
due
to
defective
dual
interfaces
wide-bandgap
perovskite,
particularly
on
textured
silicon
surfaces.
Herein,
a
series
halide
ions
(Cl
−
,
Br
I
)
substituted
piperazinium
salts
are
designed
and
synthesized
as
post-treatment
modifiers
for
perovskite
Notably,
chloride
induces
an
asymmetric
bidirectional
distribution
from
bottom
surface,
with
large
cations
concentrating
at
surface
small
anions
migrating
downward
accumulate
buried
interface.
This
results
effective
dual-interface
defect
passivation
energy
band
modulation,
enabling
(1.68
eV)
achieve
PCE
22.3%
record
product
open-circuit
voltage
×
fill
factor
(84.4%
relative
Shockley–Queisser
limit).
Furthermore,
device
retains
91.3%
its
initial
after
1200
h
maximum
point
tracking
without
encapsulation.
When
integrated
double-textured
heterojunction
remarkable
31.5%
is
achieved
1.04
cm
2
monolithic
cell,
exhibiting
excellent
long-term
operational
stability
(
T
80
=
755
h)
encapsulation
ambient
air.
work
provides
convenient
strategy
engineering
making
high-efficiency
stable
platforms.
