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.
Abstract
Radiation
detection
plays
a
critical
role
in
areas
such
as
homeland
security,
medical
care,
astronomical
exploration,
and
industrial
inspections.
Over
the
past
decade,
metal
halide
perovskites
(MHPs)
have
rapidly
advanced
optoelectronic
applications
including
photovoltaics,
light‐emitting
diodes
(LEDs),
photodetectors,
also
radiation
detection,
owing
to
their
high
mobility–lifetime
products,
readily
tunable
bandgap,
attenuation
coefficients.
Yet
MHPs
been
extensively
investigated
for
X‐ray
detections,
application
γ‐ray
spectrum
is
still
its
early
stages,
with
only
few
compositions
demonstrating
capabilities.
The
stringent
requirements
of
that
involves
photon
counting
post
demands
on
well‐controlled
crystal
growth
MHPs,
minimal
defects
device
fabrication
ensures
efficient
charge
collection.
This
underscores
need
further
development
MHP
techniques
defect
engineering.
In
this
review,
we
summarize
current
research
progress
room‐temperature
along
advances
synthesizing
high‐quality
crystals
fundamental
insights
gained
into
structural
properties
MHPs.
Based
latest
achievements,
discuss
challenges
potential
future
directions
continued
detectors.
The
premature
reaction
of
PbI
2
with
organic
cations
in
perovskite
(PVK)
precursor
solutions
often
leads
to
compromised
film
quality.
To
mitigate
this,
the
ionic
liquid
(IL)
pyridinium
trifluoromethanesulfonate
is
introduced
into
solution.
strong
interaction
between
and
promotes
formation
nucleation
clusters,
effectively
lowering
barrier
regulating
crystallization
perovskite,
resulting
high‐quality,
homogeneous
PVK
films.
In
situ
characterization
shows
that
prenucleation
strategy
yields
films
an
average
grain
size
exceeding
1
μm.
hydrophobicity
trifluoromethyl
group
modulates
humidity,
facilitating
moist
environments.
This
contrast
typical
negative
effects
moisture,
which
can
induce
defects
structures.
As
a
result,
IL‐modified
solar
cells
(PSCs)
achieved
remarkable
power
conversion
efficiency
(PCE)
25.11%
under
ambient
conditions.
These
PSCs
retained
80.43%
their
initial
PCE
after
820
h
continuous
maximum
point
(MPP)
tracking.
Furthermore,
1000
exposure
air
30%–50%
relative
humidity
(RH)
at
room
temperature,
devices
maintained
87%
efficiency,
demonstrating
excellent
stability
for
long‐term
PSC
applications.
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.
