Allyl-terminated Small Molecule Donors Effectively Regulate Miscibility to Improve the Performance of Organic Solar Cells
Journal of Materials Chemistry C,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
Optimization
of
small
molecule
donor
morphology
in
OSCs:
allyl
group-driven
enhancements
H35
for
superior
PCEs
15.21%
(ASM)
and
10.78%
(SMD:PA)
via
improved
miscibility,
domain
structure,
charge
transfer.
Язык: Английский
Achieving 19.3%-efficiency binary organic solar cells via synergistically dual-phases morphology control
Chemical Engineering Journal,
Год журнала:
2025,
Номер
506, С. 160133 - 160133
Опубликована: Янв. 1, 2025
Язык: Английский
Indacenodithiophene‐Based Medium‐Bandgap Guest Acceptor Enables High‐Efficiency Ternary Organic Solar Cells
Macromolecular Rapid Communications,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 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
Язык: Английский
Photovoltaic Performances and Morphological Adjustment of A-Π-D’Ad-Π-A Electron-Acceptors with Twisted Backbone
Опубликована: Янв. 1, 2025
Язык: Английский
Photovoltaic performances and morphological adjustment of A-π-D'AD-π-A electron-acceptors with twisted backbone
Journal of Molecular Structure,
Год журнала:
2025,
Номер
unknown, С. 142252 - 142252
Опубликована: Март 1, 2025
Язык: Английский
Highly Planar Tetramer Acceptor Constructed by Vinyl Linkage Enables Organic Solar Cells with Outstanding Efficiency
Chemistry of Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 28, 2025
Язык: Английский
Nonvolatile Solid Additive with a Simple Structure for Nonfullerene Organic Solar Cells
Solar RRL,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 9, 2025
In
organic
solar
cells
(OSCs),
precise
control
over
the
bulk
heterojunction
(BHJ)
morphology
is
critical
for
optimizing
device
performance.
A
widely
adopted
strategy
regulating
BHJ
involves
incorporation
of
small
amounts
additives.
However,
employing
volatile
solid
additives
necessitates
volatilization
control,
which
remains
challenging.
While
nonvolatile
with
high
boiling
points
have
been
explored,
most
exhibit
large
and
structurally
complex
architectures,
raising
concerns
regarding
their
role
in
OSCs
potential
impact
on
charge
transport.
Thus,
a
additive
both
point
simple
molecular
structure
highly
desirable.
this
study,
4‐bromobiphenyl
(BBP),
chemical
structure,
was
incorporated
into
to
modulate
morphology.
The
addition
BBP
enhanced
donor–acceptor
miscibility,
suppressed
excessive
aggregation,
promoted
uniform
improved
crystallinity.
Consequently,
power
conversion
efficiency
significantly
increased
18.11%,
surpassing
that
incorporating
while
also
enhancing
long‐term
stability.
This
work
provides
promising
achieving
stable
improving
OSC
performance
through
Язык: Английский