Advanced Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 13, 2025
Abstract
Precisely
regulating
vertically
distributed
morphology
by
blade‐coating
process
is
crucial
to
realize
high‐performance
large‐scale
pseudo‐planar
heterojunction
organic
photovoltaics
(OPVs).
However,
the
thermodynamic
motion
and
random
diffusion
of
donor/acceptor
(D/A)
generated
from
differences
in
surface
energy
concentration
during
sequentially
will
cause
great
challenges
for
obtaining
ideal
active
layer
morphology.
Herein,
this
study
have
proposed
a
self‐assembled
interface
orthogonal
strategy
introducing
low
guest
(N2200)
form
protective
on
PM6
surface,
which
counteracts
erosion
solution
acceptor
enhance
continuity
D/A
phases,
thus
promoting
directional
carrier
migration
effectively
suppressing
energetic
disorder.
Finally,
N2200‐modified
device
achieves
highest
power
conversion
efficiency
(PCE)
19.86%,
large‐area
module
(16.94
cm
2
)
exhibits
exceptional
PCE
(16.43%).
This
investigation
presents
innovative
insights
into
issue
triggered
molecular
provides
an
effective
method
air‐printing
OPVs
with
precisely
controlled
based
non‐halogenated
solvent.
Physical Chemistry Chemical Physics,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
Side-chain
engineering
is
employed
to
optimize
the
miscibility
of
non-fused
ring
electron
acceptors
and
donors.
The
PBDB-T:A1C6-Cl
blend
film
exhibits
better
finer
phase
separation,
contributing
higher
device
efficiency.
Organic
electrochemical
transistors
(OECTs)
are
seen
as
some
of
the
most
promising
devices
in
organic
bioelectronics.
Recent
interest
OECTs
is
sparked
by
high
performance
an
semiconductor
channel
material,
i.e.,
poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate)
(PEDOT:PSS).
The
capability
ion
penetration
and
charge
transport
determines
OECTs.
However,
uniform
structure
PEDOT:PSS
always
makes
it
difficult
to
achieve
a
well-balanced
between
two
functions.
Here,
we
report
novel
film
with
vertical
phase
separation
(VPSS-P),
where
PSS
accumulates
at
surface,
PEDOT
enriches
bottom
film.
Such
unique
improves
stability
reduces
contact
resistance,
significantly
enhancing
OECT
transconductance
(70.5
mS),
product
mobility
(μ)
volumetric
capacitance
(C*)
(μC*
∼
479
F
cm–1
V–1
s–1),
ultralow
resistance
(∼0.79
Ω
cm).
Flexible
VPSS-P
show
robust
against
deformation.
Our
findings
highlight
new
class
high-performance
provide
guidelines
for
designing
state-of-the-art
materials.
Advanced Science,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 20, 2025
Solid
additives
are
crucial
in
layer-by-layer
(LBL)
polymer
solar
cells
(PSCs).
Despite
its
importance,
the
simultaneous
application
of
solid
into
both
donor
and
acceptor
layers
has
been
largely
overlooked.
In
this
work,
two
multifunctional
actively
designed,
investigated
synergistic
effect
on
layers.
Incorporating
layer
could
effectively
enhance
aggregation
molecular
stacking
polymer,
leading
to
reduced
energy
disorder
minimizing
ΔE2.
When
introduced
layer,
they
just
play
a
role
optimizing
morphology,
thereby
reducing
ΔE3.
Excitedly,
addition
produced
for
decreasing
ΔE2
ΔE3
simultaneously,
especially
adding
SA2,
thus
enabling
an
excellent
power
conversion
efficiency
(PCE)
19.95%
(certified
as
19.68%)
with
open-circuit
voltage
(Voc)
0.921
V,
short
circuit
current
density
(Jsc)
27.08
mA
cm-2
fill
factor
(FF)
79.98%.
The
work
highlights
potential
independently
regulating
properties
layers,
which
is
expected
promising
approach
further
developing
higher
performance
PSCs.
Advanced Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 13, 2025
Abstract
Precisely
regulating
vertically
distributed
morphology
by
blade‐coating
process
is
crucial
to
realize
high‐performance
large‐scale
pseudo‐planar
heterojunction
organic
photovoltaics
(OPVs).
However,
the
thermodynamic
motion
and
random
diffusion
of
donor/acceptor
(D/A)
generated
from
differences
in
surface
energy
concentration
during
sequentially
will
cause
great
challenges
for
obtaining
ideal
active
layer
morphology.
Herein,
this
study
have
proposed
a
self‐assembled
interface
orthogonal
strategy
introducing
low
guest
(N2200)
form
protective
on
PM6
surface,
which
counteracts
erosion
solution
acceptor
enhance
continuity
D/A
phases,
thus
promoting
directional
carrier
migration
effectively
suppressing
energetic
disorder.
Finally,
N2200‐modified
device
achieves
highest
power
conversion
efficiency
(PCE)
19.86%,
large‐area
module
(16.94
cm
2
)
exhibits
exceptional
PCE
(16.43%).
This
investigation
presents
innovative
insights
into
issue
triggered
molecular
provides
an
effective
method
air‐printing
OPVs
with
precisely
controlled
based
non‐halogenated
solvent.
