Over 20% Efficiency in Printable Mesoscopic Perovskite Solar Cells with Enhanced Open‐Circuit Voltage via a Multifunctional Ionic Liquid
Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 12, 2025
Abstract
The
large
open‐circuit
voltage
(
V
OC
)
losses
limit
the
enhancement
of
power
conversion
efficiency
(PCE)
in
printable
mesoscopic
perovskite
solar
cells
(p‐MPSCs).
These
primarily
result
from
high
defect
density
at
grain
boundaries
within
mesoporous
scaffold,
which
promotes
non‐radiative
recombination.
In
this
study,
crystallization
improvement
and
modulation
is
promoted
by
adopting
a
multifunctional
ionic
liquid,
1‐butyl‐2,3‐dimethylimidazolium
trifluoromethanesulfonate
(BMMIm[OTF]).
imidazolium
ions
BMMIm[OTF]
form
hydrogen
bonds
with
PbI
6
4−
framework
coordinate
under‐coordinated
lead
through
S═O
bonds.
interactions
synergistically
improve
crystallinity
films
optimize
energy
level
alignment
perovskite/carbon
electrode
interface.
This
improved
interface
facilitates
more
efficient
charge
transfer
extraction
while
reducing
As
result,
champion
p‐MPSCs
incorporating
achieve
PCE
20.02%
1.055
V,
significantly
outperforming
control
devices
0.965
V.
Furthermore,
hydrophobic
nature
enhances
device
stability.
research
provides
practical
strategy
for
developing
durable
p‐MPSCs.
Language: Английский
Indacenodithiophene‐Based Medium‐Bandgap Guest Acceptor Enables High‐Efficiency Ternary Organic Solar Cells
Macromolecular Rapid Communications,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 14, 2025
The
ternary
organic
solar
cells
(OSCs)
have
been
proven
to
be
an
effective
strategy
for
achieving
high
power
conversion
efficiency
(PCE),
exhibiting
substantial
potential
continuous
enhancement
of
device
performance.
In
this
work,
a
novel
nonfullerene
acceptor,
IDT-FN,
is
developed
utilizing
renowned
indacenodithiophene
(IDT)
core
and
moderately
intense
electron-withdrawing
terminal
groups,
serving
as
the
third
component
in
OSCs.
IDT-FN
demonstrates
excellent
complementary
light
absorption
cascaded
energy
levels
with
host
materials
D18
CH-6F,
resulting
enhanced
photon
harvesting
charge
transport
within
blend.
Therefore,
even
as-cast
manages
surpass
optimal
binary
device,
superior
PCE
17.34%
compared
latter's
17.08%.
Through
optimization,
devices
attain
impressive
18.32%,
accompanied
by
open-circuit
voltage
(Voc)
0.897
V,
fill
factor
0.745,
short-circuit
current
density
(Jsc)
27.41
mA
cm-2.
This
significant
success
IDT-based
medium-bandgap
guests
achieve
state-of-the-art
Language: Английский
A comprehensive review of PM6:BTP-eC9 based non-fullerene organic solar cells
Haoran Wang,
No information about this author
Fan He,
No information about this author
Lei Wang
No information about this author
et al.
Sustainable materials and technologies,
Journal Year:
2024,
Volume and Issue:
42, P. e01173 - e01173
Published: Nov. 12, 2024
Language: Английский
Numerical study of charge transport layers in inverted ternary organic photovoltaic cells
EPJ Photovoltaics,
Journal Year:
2024,
Volume and Issue:
15, P. 29 - 29
Published: Jan. 1, 2024
This
study
investigates
the
crucial
role
of
charge
transport
layers
in
enhancing
performance
inverted
organic
photovoltaic
cells
(OPVs)
through
advanced
numerical
simulations
using
OghmaNano
software.
OPVs
offer
distinct
advantages,
including
lightweight,
flexibility,
and
potential
cost-effectiveness
compared
to
traditional
silicon-based
counterparts,
making
them
pivotal
for
sustainable
energy
solutions.
We
evaluate
efficiency
(iOPVs)
employing
binary
(PM6:L8-BO)
ternary
(PM6:D18:L8-BO)
active
layers,
utilizing
electron
(ETLs)
ZnO,
TiO
2
,
SnO
hole
(HTLs)
such
as
MoO
3
PEDOT,
WO
.
Results
highlight
ZnO
with
a
15
nm-thick
layer
combined
HTL
achieving
an
impressive
18.89%
devices,
demonstrating
effectiveness
materials
blends.
The
demonstrates
that
or
ETLs
can
compete
effectively
ETLs,
particularly
when
used
at
thinner
thicknesses,
offers
alternative
fabrication
methods.
It
suggests
thin
ETL
(15
±
nm)
could
significantly
enhance
iOPV
devices.
Simulations
are
optimizing
device
configurations
enabling
rapid
prototyping
cost-effective
exploration
material
combinations
architectures.
These
play
critical
balancing
carrier
generation
efficiency,
collectively
maximizing
performance.
Overall,
underscores
optimized
thicknesses
advancing
OPV
technology
by
refining
manufacturing
processes
accelerating
adoption
Language: Английский