Abstract
Developing
a
thoroughgoing
recovery
technology
that
allows
simultaneously
separating
and
recovering
all
functional
layers
of
the
end‐of‐life
perovskite
solar
cells
(PSCs),
in
keeping
with
maintaining
potent
device
efficiency
eco‐environment
friendliness,
is
crucial
toward
sustainability
PSCs.
Herein,
we
propose
facile
closed‐loop
recycling
strategy
to
realize
acquisition
reutilization
hole
transport
material
other
retrievable
components
from
obsolete
PSCs,
employing
chlorobenzene
dimethylformamide
sequentially
dissolve
spiro‐OMeTAD
layers.
Surprisingly,
recycled
spiro‐OMeTAD,
i.e.,
oxidized
(spiro‐OMeTAD
•+
)
endows
reinforced
conductivity
mobility,
favorable
energy
band
alignment,
mitigated
defects,
thus
resulting
expedited
extraction
lessened
nonradiative
recombination
loss.
Along
dissolution
layers,
materials
involving
Ag,
PbI
2
,
ITO/SnO
are
concurrently
recovered.
Note
solubilizers
also
eliminate
alien
reagents
environmental
hazards.
The
refabricated
PSC
based
on
recovered
delivers
an
upgrading
power
conversion
up
23.41%
together
open
circuit
voltage
1.17
V,
outperforming
control
fresh
(20.77%,
1.11
V).
Overall,
this
holds
promise
for
realizing
pushes
future
PSCs
sustainability.
ACS Materials Letters,
Год журнала:
2024,
Номер
unknown, С. 3327 - 3334
Опубликована: Июнь 27, 2024
Cesium
lead
bromide
(CsPbBr3)
shows
promise
for
high-stability
perovskite
solar
cells
(PSCs),
but
interface
defects
and
residual
tensile
strain
at
the
top
limit
achievement
of
high
efficiency
long-term
stability.
Here,
we
introduce
meta-aminobenzoic
acid
(MABA)
para-aminobenzoic
(PABA),
π-conjugated
molecules
with
delocalized
π-electron
systems.
The
π-conjugation
enables
stronger
coordination
between
additives
interface.
This
effectively
passivates
from
uncoordinated
Pb2+
ions,
Cs+
Br–
vacancies.
Additionally,
relaxation
is
enabled
by
dual-anchoring
geometry
molecules.
Together,
defect
passivation
enhance
stability
PSCs.
Finally,
achieved
champion
efficiencies
11.02%
a
CsPbBr3
PSC,
14.67%
CsPbI2Br
23.66%
FA0.97Cs0.03PbI3
PSC.
Long-term
tests
revealed
improved
humidity
heat
stability,
confirming
benefits
addressing
both
strain.
Abstract
The
advent
of
organic–inorganic
hybrid
metal
halide
perovskites
has
revolutionized
photovoltaics,
with
polycrystalline
thin
films
reaching
over
26%
efficiency
and
single‐crystal
perovskite
solar
cells
(IC‐PSCs)
demonstrating
≈24%.
However,
research
on
remains
limited,
leaving
a
crucial
gap
in
optimizing
energy
conversion.
Unlike
films,
which
suffer
from
high
defect
densities
instability,
offer
minimal
defects,
extended
carrier
lifetimes,
longer
diffusion
lengths,
making
them
ideal
for
high‐performance
optoelectronics
essential
understanding
material
behavior.
This
review
explores
the
advancements
potential
IC‐PSCs,
focusing
their
superior
efficiency,
stability,
role
overcoming
limitations
counterparts.
It
covers
device
architecture,
composition,
preparation
methodologies,
recent
breakthroughs,
emphasizing
importance
further
to
propel
IC‐PSCs
toward
commercial
viability
future
dominance
photovoltaic
technology.
Angewandte Chemie International Edition,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 6, 2025
The
inverted
cesium/formamidinium
(CsFA)-based
methylammonium-free
perovskite
solar
cells
possess
great
potential
in
simultaneously
realizing
high
power
conversion
efficiency
(PCE)
and
excellent
stability.
However,
the
uncontrollable
crystallization
process
poor
film
quality
hinder
further
enhancement
of
photovoltaic
performance
operational
Herein,
we
propose
a
synergistic
modulation
strategy
defects
at
grain
boundaries
(GBs)
interface
by
using
novel
carbonyl
functionalized
spacer
cation.
L-Alanine
benzyl
ester
hydrochloride
(L-ABEHCl)
containing
ammonium
cation
is
incorporated
into
precursor
solution,
increasing
nucleation
rate
reducing
crystal
growth
because
its
strong
interaction
with
components,
leading
to
increased
size
crystallinity.
No
2D
formed
for
L-ABEHCl
as
additive
whereas
upon
post-treatment.
It
revealed
that
FA+
Cs+
solution
suppress
formation
perovskite.
As
result,
passivates
GBs
form
organic
salts
Due
minimized
carrier
nonradiative
recombination
losses,
devices
achieve
maximum
PCE
25.77
%
(certified
stabilized
25.59
%),
which
one
highest
PCEs
ever
reported
based
on
vacuum
flash
evaporation
method.
unencapsulated
target
device
maintains
90.85
initial
after
2300
h
continuous
point
tracking,
among
most
stabilities
accomplished
devices.
Abstract
Developing
a
thoroughgoing
recovery
technology
that
allows
simultaneously
separating
and
recovering
all
functional
layers
of
the
end‐of‐life
perovskite
solar
cells
(PSCs),
in
keeping
with
maintaining
potent
device
efficiency
eco‐environment
friendliness,
is
crucial
toward
sustainability
PSCs.
Herein,
we
propose
facile
closed‐loop
recycling
strategy
to
realize
acquisition
reutilization
hole
transport
material
other
retrievable
components
from
obsolete
PSCs,
employing
chlorobenzene
dimethylformamide
sequentially
dissolve
spiro‐OMeTAD
layers.
Surprisingly,
recycled
spiro‐OMeTAD,
i.e.,
oxidized
(spiro‐OMeTAD
•+
)
endows
reinforced
conductivity
mobility,
favorable
energy
band
alignment,
mitigated
defects,
thus
resulting
expedited
extraction
lessened
nonradiative
recombination
loss.
Along
dissolution
layers,
materials
involving
Ag,
PbI
2
,
ITO/SnO
are
concurrently
recovered.
Note
solubilizers
also
eliminate
alien
reagents
environmental
hazards.
The
refabricated
PSC
based
on
recovered
delivers
an
upgrading
power
conversion
up
23.41%
together
open
circuit
voltage
1.17
V,
outperforming
control
fresh
(20.77%,
1.11
V).
Overall,
this
holds
promise
for
realizing
pushes
future
PSCs
sustainability.
