ACS Applied Materials & Interfaces,
Год журнала:
2024,
Номер
16(6), С. 7297 - 7309
Опубликована: Фев. 2, 2024
Serious
open-circuit
voltage
(Voc)
loss
originating
from
nonradiative
recombination
and
mismatch
energy
level
at
TiO2/perovskite
buried
interface
dramatically
limits
the
photovoltaic
performance
of
all-inorganic
CsPbIxBr3-x
(x
=
1,
2)
perovskite
solar
cells
(PSCs)
fabricated
through
low-temperature
methods.
Here,
an
ionic
liquid
(IL)
bridge
is
constructed
by
introducing
1-butyl-3-methylimidazolium
acetate
(BMIMAc)
IL
to
treat
interface,
bilaterally
passivate
defects
modulate
alignment.
Therefore,
Voc
CsPbIBr2
PSCs
modified
BMIMAc
(Target-1)
significantly
increases
148
mV
(from
1.213
1.361
V),
resulting
in
efficiency
increasing
10.30%
7.87%.
Unsealed
Target-1
show
outstanding
long-term
thermal
stability.
During
accelerated
degradation
process
(85
°C,
RH:
50∼60%),
achieve
a
champion
PCE
11.94%
with
remarkable
1.403
V,
while
control
PSC
yields
promising
10.18%
1.319
V.
In
particular,
V
highest
reported
so
far
carbon-electrode-based
PSCs.
Moreover,
this
strategy
enables
CsPbI2Br
1.295
15.20%,
which
close
15.48%
for
prepared
process.
This
study
provides
simple
assist
bifacial
defect
passivation
elevate
NPG Asia Materials,
Год журнала:
2024,
Номер
16(1)
Опубликована: Май 3, 2024
All-inorganic
lead
halide
perovskites
(LHPs)
and
their
use
in
optoelectronic
devices
have
been
widely
explored
because
they
are
more
thermally
stable
than
hybrid
organic‒inorganic
counterparts.
However,
the
active
perovskite
phases
of
some
inorganic
LHPs
metastable
at
room
temperature
due
to
critical
structural
tolerance
factor.
For
example,
black
phase
CsPbI3
is
easily
transformed
back
nonperovskite
yellow
ambient
temperature.
Much
attention
has
paid
improving
stabilities
LHPs,
especially
those
with
high
solar
cell
efficiencies.
Herein,
we
discussed
origin
stability
for
strategies
used
stabilize
cubic
(α)
phase.
We
also
assessed
β/γ
that
relatively
nearly
Furthermore,
determined
relationship
between
stabilization
defect
passivation
reviewed
growing
trend
efficiency
based
on
CsPbI3.
Finally,
provide
perspectives
future
research
related
quest
optimum
device
green
energy.
Energy & Environmental Science,
Год журнала:
2024,
Номер
17(15), С. 5513 - 5520
Опубликована: Янв. 1, 2024
An
effective
molecular
engineering
strategy
using
tailorable
phosphine
ligands
was
developed
to
modulate
the
perovskite/P3HT
interface
alleviate
recombination
loss
and
maximize
device
voltage
for
perovskites
with
various
bandgaps.
ACS Applied Materials & Interfaces,
Год журнала:
2024,
Номер
16(6), С. 7297 - 7309
Опубликована: Фев. 2, 2024
Serious
open-circuit
voltage
(Voc)
loss
originating
from
nonradiative
recombination
and
mismatch
energy
level
at
TiO2/perovskite
buried
interface
dramatically
limits
the
photovoltaic
performance
of
all-inorganic
CsPbIxBr3-x
(x
=
1,
2)
perovskite
solar
cells
(PSCs)
fabricated
through
low-temperature
methods.
Here,
an
ionic
liquid
(IL)
bridge
is
constructed
by
introducing
1-butyl-3-methylimidazolium
acetate
(BMIMAc)
IL
to
treat
interface,
bilaterally
passivate
defects
modulate
alignment.
Therefore,
Voc
CsPbIBr2
PSCs
modified
BMIMAc
(Target-1)
significantly
increases
148
mV
(from
1.213
1.361
V),
resulting
in
efficiency
increasing
10.30%
7.87%.
Unsealed
Target-1
show
outstanding
long-term
thermal
stability.
During
accelerated
degradation
process
(85
°C,
RH:
50∼60%),
achieve
a
champion
PCE
11.94%
with
remarkable
1.403
V,
while
control
PSC
yields
promising
10.18%
1.319
V.
In
particular,
V
highest
reported
so
far
carbon-electrode-based
PSCs.
Moreover,
this
strategy
enables
CsPbI2Br
1.295
15.20%,
which
close
15.48%
for
prepared
process.
This
study
provides
simple
assist
bifacial
defect
passivation
elevate
