Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 5, 2024
Abstract
Electret
has
been
extensively
utilized
as
a
charge‐trapping
layer
in
organic
phototransistor
memory
applications;
nevertheless,
the
intricate
nature
of
unique
structural
configuration
posed
challenges
regarding
manipulating
device
characteristics
and
performance.
Research
on
understanding
material‐driven
electronic
performance
single‐component
is
insufficient.
This
study
highlights
morphology‐dependent
composed
only,
followed
by
expansion
optical
manipulability
introducing
heterojunction.
A
combined
approach
involving
crystallographic
intrinsic
transistor
field‐effect
employed
to
illustrate
balance
that
exists
between
intermolecular,
intercrystalline,
well
charge
transfer
at
conjugated
core
carriers
confinement
non‐conjugated
region.
Ultimately,
novel
concept
introduced.
Given
stability
devices,
emphasis
placed
fully
programming.
The
mechanisms
trapping
effect
heterojunctions
under
illumination
remain
challenging
explain.
Consequently,
simplified
stacking
design
utilizing
molecular
systems
created.
P‐N
junction
designed
studied
N‐type
memory,
demonstrating
enriched
minority
modulate
content
trapped
charges
thus
leading
its
state
switching
without
applying
additional
gate
bias.
Advanced Energy Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 2, 2025
Abstract
Series
of
layer‐by‐layer
organic
solar
cells
(LOSCs)
are
constructed
by
sequentially
spin‐coating
donor
layer
and
acceptor
layers.
A
champion
power
conversion
efficiency
(PCE)
18.79%
is
achieved
from
the
LOSCs
with
PBQx‐TCl/ITIC/PY‐DT
as
active
layers,
which
should
be
one
top
values
among
OSCs
optical
bandgap
over
1.48
eV.
The
middle
material
ITIC
has
a
complementary
photon
harvesting
range
PBQx‐TCl
PY‐DT,
leading
to
enhanced
Meanwhile,
can
play
vital
role
in
energy
charge
transfer
relay
increase
exciton
utilization
transport,
confirmed
varied
FFs
normal
or
inverted
ITIC/PY‐DT
PY‐DT/ITIC
Over
7%
PCE
improvement
employing
form
cascaded
This
work
may
provide
an
efficient
strategy
for
improving
performance
LOSCs.
Solar RRL,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 5, 2025
The
morphology
of
active
layer
the
organic
solar
cells
(OSCs)
tends
to
transition
toward
its
lowest
energy
conformation
under
thermal
stress,
significantly
limiting
stability
OSCs.
In
this
study,
ethyl
cellulose
(EC)
is
utilized
as
an
additive
in
typical
PM6:Y6
and
other
systems.
Due
strong
interaction
between
hydroxyl
groups
EC
heteroatoms
semiconductors,
their
bulk
heterojunction
nanomorphology
locked,
thereby
enhancing
device
stability.
Under
stress
at
65
°C
for
1,000
h,
incorporating
demonstrates
excellent
nearly
without
performance
loss.
Furthermore,
compared
control
device,
exhibits
improved
a
range
more
stringent
aging
conditions.
Additionally,
shows
broad
applicability
various
systems,
effectively
This
work
offers
promising
approach
developing
stable
structures
Advanced Energy Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 14, 2025
Abstract
Recent
progress
in
organic
(semiconductor)
solar
cells
(OSCs)
has
led
to
power
conversion
efficiencies
(PCEs)
reaching
20%,
with
predictions
that
25%
may
be
possible.
Additional
PCE
improvements,
significant
efforts
have
been
made
address
the
engineering
challenges
traditionally
limited
OSCs
small
area
devices
often
poor
temporal
stability.
Layer‐by‐layer
(LbL)
processing
of
active
layers
emerged
as
a
promising
approach
tackle
these
challenges,
numerous
state‐of‐the‐art
processed
using
LbL
reported.
In
this
Perspective,
recent
developments
are
developed
enhancing
OSC
efficiency
and
stability,
particular
focus
on
working
mechanisms
pseudo‐bilayer
heterojunctions
(P‐BHJ)
practical
aspects
fabricating
high‐performance
techniques.
By
providing
insights
into
resultant
film
morphology,
it
is
hoped
contribute
ongoing
improve
efficiency,
scalability
explore
their
potential
for
broader
applications
such
example
indoor
light
harvesting
or
agrivoltaics.
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: May 7, 2025
Abstract
Star‐shaped
trimeric
acceptors
have
garnered
increasing
attention
in
organic
solar
cells
(OSCs),
yet
a
mechanistic
gap
exists
on
regulation
of
morphology
and
carrier
dynamics.
Herein,
nonfullerene
acceptor
named
BTF‐Trimer
bearing
benzotrifuran
core
with
more
electronegative
oxygen
atoms
is
newly
designed,
which
fosters
intermolecular
interactions
both
polymer
donors
small‐molecule
acceptors.
possesses
reduced
aggregation
tendencies
high
glass
transition
temperature,
are
conducive
to
inhibiting
excessive
phases
stabilizing
film
morphology,
respectively.
Notably,
as
mediator
strengthened
host
donor‐acceptor
compatibility
ternary
blend
active
layers,
forming
dual‐fibril
interpenetrating
networks
that
promoted
exciton
dissociation
hole
transfer
well
alleviated
bimolecular
recombination
devices.
Consequently,
the
power
conversion
efficiency
T
70
(the
time
required
reach
70%
initial
efficiency)
lifetime
OSCs
an
Ar
atmosphere
achieved
19.13%
≈2800
h,
This
study
highlights
distinctive
merits
star‐shaped
suppress
over‐crystallization
enhance
phase
continuity,
offering
insights
into
interplay
phase‐separated
dynamics,
plays
critical
role
Advanced Energy Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: May 10, 2025
Abstract
The
primary
challenge
in
the
commercialization
of
organic
photovoltaics
(OPVs)
is
ensuring
long‐term
stability,
making
study
their
degradation
mechanisms
essential.
This
centered
on
underlying
degradation,
providing
a
systematic
and
in‐depth
analysis
instability
factors.
A
clear
distinction
between
burn‐in
loss
established,
with
comprehensive
examination
governing
each
process.
review
highlights
how
pathways
vary
depending
external
environmental
factors
specific
device
layers,
while
also
identifying
key
indicators
for
mitigating
instability.
Furthermore,
this
work
extensively
discusses
analytical
tools
employed
stability
research,
offering
structured
overview
methodologies,
obtained
results,
practical
implications.
Advanced
high
potential
future
applications
are
introduced,
along
principles
prospective
contributions
to
analysis.
By
integrating
mechanistic
perspective
an
exploration
techniques,
provides
framework
understanding
OPV
offers
valuable
insights
into
development
effective
stabilization
strategies.
Energy & Environmental Science,
Journal Year:
2024,
Volume and Issue:
17(20), P. 7895 - 7907
Published: Jan. 1, 2024
Effects
of
building
blocks
bearing
various
diazo-multimembered
rings
on
NFAs’
molecular
properties
and
photovoltaic
performance
were
systematically
investigated.
Among,
PM6:7C-2F-based
OSCs
delivered
a
champion
PCE
18.83%
with
superior
stability.
In
this
work,
a
series
of
eco-friendly
solvent-processed
all-polymer
solar
cells
(APSCs)
were
fabricated
by
employing
the
sequentially
spin-coating
method.
Two
polymer
donor
materials
PBQx-TCl
and
PM6
deliberately
selected
due
to
their
similar
chemical
structure,
preferring
form
alloyed
state
for
better
exciton
dissociation
hole
transport
in
layer-by-layer
(LbL)
APSCs.
The
between
can
be
confirmed
from
PL
spectra
neat
blend
films,
as
well
short-circuit
current
densities
(JSC)
special
without
acceptor
layer.
optimized
ternary
LbL
APSCs
with
30
wt%
layer
exhibit
power
conversion
efficiency
(PCE)
18.55%,
originating
simultaneously
improved
JSC
25.16
mA
cm-2,
open-circuit
voltage
(VOC)
0.966
V,
fill
factor
76.33%.
increased
VOC
is
mainly
attributed
decreased
energy
loss
good
compatibility
two
donors.
PCE
18.55%
should
among
highest
values
processed
solvent.
