Solar RRL,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 22, 2024
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.
Advanced Theory and Simulations,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 4, 2025
Abstract
Cs₂SnI₆
has
emerged
as
a
stable
and
environmentally
friendly
replacement
for
lead
(Pb)‐based
perovskite
solar
cells
(PSCs)
due
to
its
air
stability,
attributed
the
Sn⁴⁺
oxidation
state,
non‐toxic
composition
(lead‐free).
A
key
benefit
of
using
an
absorber
layer
is
that
it
enables
elimination
hole
transport
layers
(HTLs)
in
some
device
architectures;
however,
PSCs
with
HTLs
generally
outperform
those
without
HTL.
Here,
structural,
electronic,
optical
properties
are
investigated
first‐principles
calculations,
photovoltaic
effects
by
SCAPS‐1D
simulation
software.
Nine
different
configurations
have
been
combining
three
electron
(ETLs)
optimize
performance.
The
impact
HTL
thickness,
ETL
operating
temperature
studied
on
cell's
efficiency.
optimized
PSC
demonstrates
fill
factor
(FF)
84.683%,
power
conversion
efficiency
(PCE)
24.0%,
short
circuit
current
density
J
SC
28.433
mA
cm
−2
,
open
voltage
V
OC
0.998
V,
quantum
99.866%,
optimal
conditions
at
300
K.
ACS Applied Materials & Interfaces,
Journal Year:
2025,
Volume and Issue:
17(9), P. 14269 - 14277
Published: Feb. 24, 2025
Inverted
perovskite
solar
cells
(PSCs)
have
achieved
great
development,
contributed
by
the
advance
of
self-assembled
monolayer
(SAM)
hole-transporting
layers
(HTLs)
due
to
their
distinctive
molecular
designability.
However,
SAM
HTLs
still
present
challenges
achieving
a
compact
and
ordered
surface,
resulting
in
vacancies
defects
at
interface
as
well
adversely
affecting
growth
perovskites.
In
this
work,
we
propose
micromolecule
postdeposition
process
design
HTL
form
high-quality
perovskites
achieve
highly
efficient
inverted
PSCs.
We
introduce
etidronic
acid
(EA)
fill
reduce
improve
growing
The
EA
can
anchor
substrate
through
P-OH
anchors,
occupying
left
MeO-4PACz,
simultaneously
create
interaction
with
P═O
C-OH
functional
groups.
effectively
fills
reduces
interface,
passivates
perovskites,
facilitates
carrier
transport.
Consequently,
champion
PCE
24.42%
is
for
target
PSCs,
which
much
higher
than
efficiency
(20.08%)
control.
This
research
provides
guided
widely
applicable
strategy
development
further
advances
performance
Journal of Semiconductors,
Journal Year:
2025,
Volume and Issue:
46(5), P. 051802 - 051802
Published: May 1, 2025
Abstract
Integrated
perovskite-organic
solar
cells
(IPOSCs)
offer
a
promising
hybrid
approach
that
combines
the
advantages
of
perovskite
and
organic
cells,
enabling
efficient
photon
absorption
across
broad
spectrum
with
simplified
architecture.
However,
challenges
such
as
limited
charge
mobility
in
bulk
heterojunction
(BHJ)
layers,
energy-level
mismatch
at
perovskite/BHJ
interface
still
sustain.
Recent
advancements
non-fullerene
acceptors
(NFAs),
interfacial
engineering,
emerging
materials
have
improved
transfer/transport,
overall
power
conversion
efficiency
(PCE)
IPOSCs.
This
review
explores
key
developments
IPOSCs,
focusing
on
low-bandgap
for
near-infrared
absorption,
energy
alignment
optimization,
strategies
to
enhance
photocurrent
density
device
performance.
Future
innovations
material
selection
architecture
will
be
crucial
further
improving
bringing
them
closer
practical
application
next-generation
photovoltaic
technologies.
Solar RRL,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 15, 2025
Inverted
perovskite
solar
cells
(IPSCs)
have
become
a
research
hotspot
in
the
field
of
photovoltaics
due
to
their
excellent
photovoltaic
performance,
minimal
hysteresis,
and
low
fabrication
costs.
Poly(3,4‐ethylenedioxythiophene):poly(styrene
sulfonate)
(PEDOT:PSS),
as
an
inexpensive
hole
transport
material,
has
been
widely
applied
IPSCs.
However,
PEDOT:PSS
drawbacks
such
energy‐level
mismatch
with
perovskite,
severe
interfacial
defects,
rate,
conductivity.
Therefore,
modifying
improving
is
practical
value.
Herein,
potassium
benzoate
introduced
dope
PEDOT:PSS,
enhancing
its
conductivity
accelerating
device,
making
energy
levels
between
more
compatible.
More
importantly,
benzoate‐doped
PEDOT
promotes
crystal
growth,
increases
grain
size
film,
passivates
defects.
The
open‐circuit
voltage
(
V
oc
)
device
from
1.107
1.137
V,
power
conversion
efficiency
improves
original
17.24%
20.15%.
This
study
provides
new
approach
develop
inverted
PSCs.
Nanomaterials,
Journal Year:
2025,
Volume and Issue:
15(4), P. 292 - 292
Published: Feb. 14, 2025
Organic-inorganic
lead
halide
perovskite
solar
cells
(PSCs)
have
presented
promising
improvements
within
recent
years
due
to
the
superior
photophysical
properties
of
perovskites.
The
efficiency
PSCs
is
closely
related
quality
film.
Additive
engineering
an
effective
strategy
regulate
crystallization
Therefore,
in
this
work,
we
introduce
methylammounium
chloride
(MACl)
into
a
precursor
as
additive
improve
film
and
suppress
formation
defects
achieve
high-performance
PSCs.
By
meticulously
investigating
studying
influence
different
percentages
MACl
additives
on
quality,
obtain
that
best
amount
incorporated
10%.
Thanks
employment
optimal
MACl,
shows
significantly
improved
morphology
with
larger
grains,
smoother
surface,
suppressed
defects.
Finally,
target
addition
10%
present
highest
PCE
23.61%,
which
much
higher
than
value
(16.72%)
control
device.
Perovskite
solar
cells
(PSCs)
have
attracted
much
attention
in
the
global
photovoltaic
field
due
to
their
excellent
optoelectronic
properties.
However,
intrinsic
crystalline
properties
and
preparation
methods
of
perovskites
result
numerous
defects
residual
stress
perovskite
film.
To
address
this
issue,
additive
3-methylthio-1-propylammonium
bromide
(3MeSPABr)
was
added
precursor
solution,
PSCs
with
an
inverted
structure
via
a
low-pressure-assisted
solution
process
were
fabricated.
The
found
interact
through
strong
coordination
hydrogen
bonding,
passivate
defects,
alleviate
tensile
stress.
power
conversion
efficiency
(PCE)
as
high
21.99%
obtained.
Besides,
addition
3MeSPABr
also
increases
hydrophobicity
film
improves
stability
PSCs.
Advanced Science,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 20, 2025
Abstract
PTAA
as
a
widely
studied
polymeric
hole
transporting
material,
has
garnered
significant
attention
due
to
its
outstanding
thermal
and
chemical
stability.
However,
the
performance
of
PTAA‐based
p‐i‐n
devices
is
shown
lag
behind
counterpart
utilizing
oxides
or
SAMs.
In
this
study,
ionic
liquid,
1‐ethyl‐3‐methylimidazolium
formate
(EMIMCOOH),
innovatively
introduced
into
lead
iodide
(PbI
2
)
precursor
solution,
resulting
in
more
pronounced
mesoporous
PbI
film
with
expended
pore‐size
denser
pores.
This
enhancement
attributed
coordination
bond
between
─C═O
group
EMIMCOOH
Pb
2+
.
intensified
morphology
not
only
facilities
reaction
organic
layer,
but
also
promotes
conversion
perovskite
material.
Importantly,
incorporation
slows
down
process,
increasing
domain
size
suppressed
0
trap
density,
uniform
layer
enhanced
charge
transport
properties,
evidenced
by
conducting
atomic
force
microscope
(c‐AFM)
results.
As
result,
yields
power
efficiency
(PCE)
24.10%
high
fill
factor
exceeding
85%.
Notably,
PCE
EMIMCOOH‐modified
device
can
still
maintain
86%
initial
value
after
1500
h
at
25
°C
an
N
atmosphere.
