Advanced Energy Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 21, 2025
Abstract
Perovskite
solar
cells
(PSCs)
are
of
significant
interest
for
researchers
as
the
next‐generation
energy
harvesters.
However,
PSCs
suffer
from
traps
that
densely
distributed
at
interfaces,
which
deteriorate
device's
performance.
To
address
this
issue,
a
new
small
molecule
(DTAQTPPO)
capable
trap
passivation
on
perovskite
layer
surface
while
possessing
ambipolar
charge
extraction
properties
is
designed,
endow
DTAQTPPO
with
dual
functionality
both
interface
defect
passivator
and
efficient
hole/electron
extractor
in
n‐i‐p
p‐i‐n
architectures.
These
beneficial
effects
improve
power
conversion
efficiencies
(PCEs)
to
23.03%
23.55%
under
1
sun
37.18%
36.29%
1000
lux
light‐emitting
diode
(LED)
indoor
illuminations
architectures,
respectively,
after
incorporating
DTAQTPPO.
In
addition,
enhance
PV
using
an
anti‐solvent‐free
PCE
23.24%
35.47%
LED
illumination,
respectively.
results
suggest
can
be
widely
used
multifunctional
interlayer
versatile
device
architectures
various
light
illumination
conditions
generality
different
perovskites
processes.
Advanced Energy Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Апрель 18, 2024
Abstract
Perovskite
solar
cells
(PSCs)
hold
significant
promise
as
the
next‐generation
materials
in
photovoltaic
markets,
owing
to
their
ability
achieve
impressive
power
conversion
efficiencies,
streamlined
fabrication
processes,
cost‐effective
manufacturing,
and
numerous
other
advantages.
The
utilization
of
self‐assembled
monolayer
(SAM)
molecules
has
proven
be
a
success
enhancing
device
efficiency
extending
stability.
This
review
highlights
dual
use
SAM
realm
PSCs,
which
can
not
only
serve
charge
transport
but
also
act
interfacial
modulators.
These
research
endeavors
encompass
wide
range
applications
for
various
both
n‐i‐p
p‐i‐n
structured
providing
deep
insight
into
underlying
mechanisms.
Furthermore,
this
proposes
current
challenges
future
investigations
materials.
timely
thorough
seeks
provide
direction
inspiration
efforts
dedicated
ongoing
incorporation
SAMs
field
perovskite
photovoltaics.
Angewandte Chemie International Edition,
Год журнала:
2024,
Номер
63(30)
Опубликована: Май 11, 2024
Abstract
It
is
a
crucial
role
for
enhancing
the
power
conversion
efficiency
(PCE)
of
perovskite
solar
cells
(PSCs)
to
prepare
high‐quality
films,
which
can
be
achieved
by
delaying
crystallization
film.
Hence,
we
designed
difluoroacetic
anhydride
(DFA)
as
an
additive
regulating
process
thus
reducing
defect
formation
during
film
formation.
was
found
DFA
reacts
with
DMSO
forming
two
molecules,
difluoroacetate
thioether
ester
(DTE)
and
acid
(DA).
The
strong
bonding
DTE
⋅
PbI
2
DA
retard
formation,
monitored
through
in
situ
UV/Vis
PL
tests.
By
using
additives,
prepared
films
low
defects.
Finally,
champion
PCE
25.28
%
excellent
environmental
stability,
retained
95.75
initial
after
1152
h
at
25
°C
under
RH.
Communications Materials,
Год журнала:
2024,
Номер
5(1)
Опубликована: Июль 23, 2024
Abstract
In
the
last
decade,
laboratory-scale
single-junction
perovskite
solar
cells
have
achieved
a
remarkable
power
conversion
efficiency
exceeding
26.1%.
However,
transition
to
industrial-scale
production
has
unveiled
significant
gap.
The
central
challenge
lies
in
difficulty
of
achieving
uniform,
high-quality
films
on
large
scale.
To
tackle
this
issue,
various
innovative
strategies
for
manipulating
crystallization
emerged
recent
years.
Based
an
in-depth
fundamental
understanding
nucleation
and
growth
mechanisms
large-area
prepared
through
blade/slot-die
coating
methods,
review
offers
critical
examination
manipulation
modules.
Lastly,
we
explore
future
avenues
aimed
at
enhancing
stability
PSMs,
thereby
steering
field
toward
commercially
viable
applications.
Advanced Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 3, 2025
Abstract
Although
p‐i‐n
type
inverted
perovskite
solar
cells
(PSCs)
achieve
excellent
photoelectric
efficiencies,
the
nonradiative
recombination
at
perovskite/C
60
interface
is
still
key
factor
affecting
overall
efficiency
of
PSCs.
Herein,
a
synergistic
passivation
strategy
(meta‐fluoro‐phenylethylammonium
iodide
and
piperazine
iodide)
developed
to
modify
in
This
facilitates
situ
reconstruction
film
obtain
smooth
flat
surface.
Furthermore,
two
molecules
work
synergistically
passivate
surface
defects,
adjust
energy
levels,
bolster
electric
field,
all
which
reduce
losses
interface.
The
optimal
PSCs
adopting
this
power
conversion
25.85%.
(certified
value
25.22%).
After
operating
maximum
point
for
1000
h,
95%
initial
can
be
maintained.
process
universally
applicable
scalable.
Applied Physics Letters,
Год журнала:
2025,
Номер
126(15)
Опубликована: Апрель 1, 2025
Inorganic
CsPbI2Br
perovskite
solar
cells
have
attracted
widespread
attention
due
to
their
outstanding
performance
and
photo-thermal
stability.
However,
the
rapid
crystallization
of
solution-processed
film
often
results
in
poor
crystallinity
a
high
density
defects,
which
seriously
restrict
improvement
device
performance.
Here,
we
introduce
dual-functional
additive,
4-amino-5-aminomethyl-2-methylpyrimidine
(AMP),
regulate
reduce
defect
film.
The
introduction
AMP
notably
improves
morphology
promotes
preferred
crystal
orientation.
C=N
amino
groups
interact
with
Pb2+
Br-
perovskite,
respectively,
effectively
passivating
defects
improving
carrier
lifetime.
As
result,
power
conversion
efficiency
optimized
carbon-based
hole-transport
layer-free
reaches
13.30%,
exceeds
10.66%
control
device.
environmental
light
stability
is
also
significantly
improved.
This
work
provides
valuable
insights
into
development
high-performance
all-inorganic
via
additive
strategies.
Advanced Functional Materials,
Год журнала:
2024,
Номер
34(46)
Опубликована: Авг. 17, 2024
Abstract
Power
conversion
efficiencies
(PCEs)
of
the
methylammonium‐free
(MA‐free)
perovskite
solar
cells
(PSCs)
are
constantly
lagging
behind
those
most
extensively
researched
triple
cation
mixed
PSCs
due
to
their
subpar
films.
Here,
two
guanidine‐based
passivation
agents
proposed,
that
are,
sulfaguanidine
(S‐Gua)
and
1‐acetylguanidine
(A‐Gua)
can
be
applied
optimize
film
quality
MA‐free
for
minimizing
efficiency
discrepancy
between
types
PSCs.
Through
strong
coordination
with
Pb
2+
hydrogen
bonding
formamidinium
(FA
+
),
additives
reduce
bulk
defects
suppress
non‐radiative
recombination,
which
in
turn
enhance
charge
extraction
transfer
efficiency.
Consequently,
S‐Gua‐
A‐Gua‐treated
devices
achieve
PCEs
24.34%
23.77%,
respectively.
Both
greater
than
control
device
(23.03%),
PCE
is
comparable
best
inverted
narrower
bandgaps.
Moreover,
S‐Gua‐treated
maintain
89.3%
82.0%
initial
after
aging
800
h
heating
(85
°C)
340
ambient
air
without
any
encapsulation,
This
work
offers
comprehensive
insights
into
use
high‐quality
films
subsequently
state‐of‐the‐art
Journal of Materials Chemistry A,
Год журнала:
2024,
Номер
12(34), С. 23067 - 23075
Опубликована: Янв. 1, 2024
An
n/n
−
homojunction
at
the
top
perovskite/carbon
interface
is
realized
by
doping
natural
additive
for
accelerating
charge
extraction
and
suppressing
carrier
nonradiative
recombination
in
carbon-based
CsPbI
2
perovskite
solar
cells.
Advanced Energy Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 21, 2024
Abstract
Trap‐mediated
nonradiative
charge
recombination
poses
a
significant
obstacle
to
achieving
high‐efficiency
and
stability
in
metal‐halide
perovskite
solar
cells
(PSCs).
Utilizing
the
interactions
between
functional
groups
of
molecules
defects
as
surface
defect
passivation
strategies
is
common
approach
addressing
this
challenge.
Nevertheless,
challenge
lies
developing
comprehensive
molecule
capable
effectively
depressing
passivating
different
charged
defects.
This
study
explores
multifunctional
organic
salt
neostigmine
methyl
sulfate
(NMS),
finely
regulate
crystallization
film,
thereby
minimizing
The
C═O
S═O
NMS
coordinate
with
Pb
2+
,
while
oxygen
atoms
interact
FA
+
through
hydrogen
bonds
(O∙∙∙H─N).
involving
S─O
−
ions
─N(CH
3
)
negative
halide
are
predominantly
electrostatic
interactions.
Therefore,
treatment,
process
film
delayed,
energy
levels
optimized,
passivated.
leads
notable
decrease
density
an
improved
alignment
levels,
enhancing
carrier
transfer
extraction
within
device.
Consequently,
stabilized
power
conversion
efficiency
(PCE)
24.95%
achieved.
Even
after
50
d,
device
maintains
its
environmental
retaining
89.39%.
Advanced Energy Materials,
Год журнала:
2024,
Номер
14(31)
Опубликована: Май 21, 2024
Abstract
Weak
bonding
between
the
perovskite
and
charge
transport
layers
can
lead
to
interfacial
defects,
hindering
transfer
limiting
efficiency
stability
of
solar
cells
(PSCs).
To
address
this
issue,
two
halogenated
spiro[fluorene‐9,9′‐xanthene]‐based
molecules
(SFX‐DM‐F
SFX‐DM‐Cl)
are
designed
as
an
layer
hole
materials
(HTMs).
Both
first‐principles
simulations
experimental
results
used
demonstrate
that
these
improve
contact
perovskite's
Pb(II)
HTMs,
increasing
transfer.
The
similar
structure
interlayer
HTM
also
enhances
integral,
favoring
effective
transport.
PSCs
based
on
SFX‐DM‐Cl
achieve
power
conversion
efficiencies
24.8%
(0.0625
cm
2
)
23.1%
(1
).
Even
after
2000
h
at
a
relative
humidity
15–20%,
unencapsulated
PSC
retains
94%
its
initial
efficiency.
This
work
proposes
homologous
HTMs
molecular
bridges
optimize
weak
chemical
bonds
transfer,
thereby
enabling
efficient
stable
PSCs.