Angewandte Chemie,
Год журнала:
2024,
Номер
136(51)
Опубликована: Авг. 16, 2024
Abstract
Designing
an
efficient
modification
molecule
to
mitigate
non‐radiative
recombination
at
the
NiO
x
/perovskite
interface
and
improve
perovskite
quality
represents
a
challenging
yet
crucial
endeavor
for
achieving
high‐performance
inverted
solar
cells
(PSCs).
Herein,
we
synthesized
novel
fullerene‐based
hole
transport
molecule,
designated
as
FHTM,
by
integrating
C
60
with
12
carbazole‐based
moieties,
applied
it
interface.
The
in
situ
self‐doping
effect,
triggered
electron
transfer
between
moiety
within
FHTM
along
extended
π
conjugated
of
carbazole
groups,
significantly
enhances
FHTM's
mobility.
Coupled
optimized
energy
level
alignment
enhanced
interactions,
extraction
corresponding
devices.
Additionally,
introduced
efficiently
promotes
homogeneous
nucleation
perovskite,
resulting
high‐quality
films.
These
combined
improvements
led
FHTM‐based
PSCs
yielding
champion
efficiency
25.58
%
(Certified:
25.04
%),
notably
surpassing
that
control
device
(20.91
%).
Furthermore,
unencapsulated
maintained
93
its
initial
after
1000
hours
maximum
power
point
tracking
under
continuous
one‐sun
illumination.
This
study
highlights
potential
functionalized
fullerenes
materials,
opening
up
new
avenues
their
application
field
PSCs.
Nature Communications,
Год журнала:
2025,
Номер
16(1)
Опубликована: Янв. 2, 2025
Flexible
perovskite
solar
cells
(F-PSCs)
are
appealing
for
their
flexibility
and
high
power-to-weight
ratios.
However,
the
fragile
grain
boundaries
(GBs)
in
films
can
lead
to
stress
strain
cracks
under
bending
conditions,
limiting
performance
stability
of
F-PSCs.
Herein,
we
show
that
film
facilely
achieve
situ
bifacial
capping
via
introducing
4-(methoxy)benzylamine
hydrobromide
(MeOBABr)
as
precursor
additive.
The
spontaneously
formed
MeOBABr
layers
flatten
boundary
grooves
(GBGs),
enable
release
mechanical
at
GBs
during
bending,
rendering
enhanced
robustness.
They
also
contribute
reduction
residual
passivation
surface
defects
film.
Besides,
molecular
polarity
result
band
favors
interfacial
charge
extraction.
corresponding
inverted
F-PSCs
based
on
nickel
oxide
(NiOx)/poly(triaryl
amine)
(PTAA)
hole
transport
bilayer
reach
a
23.7%
power
conversion
efficiency
(PCE)
(22.9%
certified)
AM
1.5
G
illumination
42.46%
PCE
1000
lux
indoor
light
illumination.
Meanwhile,
robust
durability
device
is
achieved.
flexible
limited
by
films.
Here,
authors
in-situ
demonstrate
stable
devices
with
maximum
23.7%.
Advanced Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 19, 2025
Abstract
Nickel
oxide
(NiO
x
)
is
considered
as
a
potential
hole
transport
material
in
the
fabrication
of
lead‐tin
(Pb‐Sn)
perovskite
solar
cells
(PSCs)
for
tandem
applications.
However,
energy
level
mismatch
and
unfavorable
redox
reactions
between
Ni
≥3+
species
Sn
2+
at
NiO
/perovskite
interface
pose
challenges.
Herein,
high‐performance
Pb‐Sn‐based
inorganic
PSCs
are
demonstrated
by
modulating
with
multifunctional
4‐aminobenzenesulfonic
acid
(4‐ABSA)
interlayer.
The
4‐ABSA
interlayer
induces
formation
an
oriented
dipole
moment
directed
from
to
perovskite,
effectively
elevating
valance
band
maximum
film,
thus
balancing
difference
promoting
charge
carrier
extraction
device.
Moreover,
molecules
interact
both
suppressing
reaction
highly
active
perovskites
while
regulating
crystallization.
This
results
films
reduced
defect
density
enlarged
grains.
Consequently,
remarkable
device
efficiency
17.4%
obtained,
representing
highest
reported
value
far.
Furthermore,
enhances
UV‐radiation
operational
stability
resulting
devices,
maintaining
over
80%
90%
initial
after
240
h
UV‐light
exposure
480
1
sun
illumination,
respectively.
Nature Communications,
Год журнала:
2025,
Номер
16(1)
Опубликована: Апрель 11, 2025
Low-bandgap
(LBG)
mixed
tin-lead
(Sn-Pb)
perovskite
solar
cells
(PSCs)
suffer
from
inferior
performance
due
to
their
high
defect
density.
Conventionally,
ethylenediammonium
diiodide
(EDADI)
is
used
as
a
surface
passivator
reduce
defects
and
improve
device
photovoltaic
performance,
but
it
introduces
severe
hysteresis
caused
by
excessive
mobilized
ions
at
the
top
interface.
Here,
we
report
mobile
ion
suppressing
strategy
of
using
hydrazine
monohydrochloride
(HM)
bulk
anchor
free
in
LBG
perovskites.
The
protonated
(N2H5+)
HM
formed
hydrogen
bonds
with
iodine
(I-)
ions,
while
chloride
(Cl-)
occupied
I-
vacancies,
collectively
impeding
migration
thus
mitigating
movement-induced
that
arose
EDADI
usage.
synergistic
doping
post-treatment
significantly
suppresses
oxidation
Sn2+,
decreases
trap
density,
inhibits
rapid
crystallization
perovskite.
Consequently,
achieved
champion
efficiency
23.21%
for
PSCs.
Integrating
these
wide-bandgap
PSCs
into
all-perovskite
tandem
yields
28.55%
(certified
28.31%)
negligible
hysteresis.
Hybrid
organic-inorganic
lead
halide
perovskite
solar
cells
(PSCs)
have
rapidly
emerged
as
a
promising
photovoltaic
technology,
with
record
efficiencies
surpassing
26%,
approaching
the
theoretical
Shockley-Queisser
limit.
The
advent
of
all-perovskite
tandem
(APTSCs),
integrating
Pb-based
wide-bandgap
(WBG)
mixed
Sn-Pb
narrow-bandgap
(NBG)
perovskites,
presents
compelling
pathway
to
surpass
this
Despite
recent
innovations
in
hole
transport
layers
(HTLs)
that
significantly
improved
efficiency
and
stability
lead-based
PSCs,
an
effective
HTL
tailored
for
NBG
PSCs
remains
unmet
need.
This
review
highlights
essential
role
HTLs
enhancing
performance
focusing
on
their
ability
mitigate
non-radiative
recombination
optimize
buried
interface,
thereby
improving
film
quality.
distinct
attributes
such
lower
energy
levels
accelerated
crystallization
rates,
necessitate
specialized
properties.
In
study,
latest
advancements
are
systematically
examined
encompassing
organic,
self-assembled
monolayer
(SAM),
inorganic
materials,
HTL-free
designs.
critically
assesses
inherent
limitations
each
category,
finally
proposes
strategies
surmount
these
obstacles
reach
higher
device
performance.
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 Optical Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 17, 2025
Abstract
Metal
halide
perovskites
have
attracted
much
attention
due
to
their
properties
and
wide
applications
in
optoelectronic
devices.
B‐site
ion
substitution,
especially
heterovalency
is
proven
be
one
of
the
practical
approaches
modulate
lattice
structure
improve
physicochemical
properties.
Here,
bandgap
modulation
all‐inorganic
CsPbX
3
are
achieved
by
substituting
Pb
2+
with
Bi
3+
.
A
series
CsPb
1‐
x
Br
(0
≤
1)
microplates
values
precisely
tuned
prepared
a
chemical
vapor
deposition
(CVD)
method.
The
varies
from
single
crystal
CsPbBr
cubic
Cs
2
9
hexagonal
structure.
Correspondingly,
three
photoluminescence
(PL)
bands
gradually
emerge
during
substituting:
green,
blue,
broad
red‐to‐near‐infrared
emission.
From
micro‐area
spectra
as
function
excitation
power
temperature,
combined
time‐resolved
PL
characterization,
emission
confirmed
band‐edge
self‐trapped
excitons
(STEs)
density
functional
theory
(DFT)
calculations,
STE
0.9
0.1
highly
related
defect
contributed
bromide
vacancy
substitution
ions.
This
study
paves
new
way
for
expanding
spectral
range
perovskite
emitters
even
preparing
white
light‐emitting
