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 Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 10, 2024
Abstract
All‐polymer
organic
solar
cells
(OSCs)
have
shown
unparalleled
application
potential
in
the
field
of
flexible
wearable
electronics
recent
years
due
to
excellent
mechanical
and
photovoltaic
properties.
However,
small
molecule
acceptors
after
polymerization
still
retain
some
aggregation
properties
molecule,
falling
short
ductility
requirements
for
devices.
Here,
based
on
multimodal
energy
dissipation
theory,
devices
are
co‐enhanced
by
adding
thermoplastic
elastomer
material
(polyurethane,
PU)
PM6:PBQx‐TF:PY‐IT‐based
active
layer
films.
The
construction
multi‐fiber
network
structure
decrease
films’
residual
stresses
contribute
enhancement
carrier
transport
defect
state
density.
Eventually,
PCE
(power
conversion
efficiency)
19.40%
is
achieved
with
an
effective
area
0.102
cm
2
,
third‐party
certified
reaches
19.07%,
which
highest
OSCs
currently
available.
To
further
validate
this
strategy
large‐area
module
applications,
25‐cm
‐based
super‐flexible
modules
prepared
PCEs
15.48%
14.61%,
respectively,
demonstration
applications
implemented.
ACS Applied Energy Materials,
Journal Year:
2024,
Volume and Issue:
7(4), P. 1676 - 1683
Published: Feb. 13, 2024
Nonfused
electron
acceptors
have
recently
attracted
considerable
attention,
primarily
owing
to
their
inherent
merits,
which
encompass
straightforward
synthetic
methodologies,
heightened
yield
efficiencies,
and
economic
viability.
In
this
study,
we
undertaken
the
deliberate
design
synthesis
of
two
distinct
nonfused
acceptors,
denoted
as
BTIC-4F
PTIC-4F,
featuring
a
two-dimensional
(2D)
extended
electron-deficient
quinoxaline
moiety
central
core
4H-cyclopenta[1,2-b:5,4-b′]dithiophene
(CPDT)
bridge
that
connects
cores
terminal
groups.
The
crystallinity
packing
behaviors
been
finely
tuned
through
strategic
manipulation
diverse
nuclei.
Subsequently,
PTIC-4F
with
phenanthrene-fused
exhibits
enhanced
more
organized
molecular
structure.
Therefore,
structural
optimization
translates
into
remarkable
outcome,
PBDB-T:PTIC-4F-based
device
achieving
substantially
elevated
power
conversion
efficiency
11.24%
compared
its
PBDB-T:BTIC-4F
counterpart.
findings
our
study
underscore
promise
in
extending
units
viable
fruitful
avenue
for
acceptors.
Aggregate,
Journal Year:
2024,
Volume and Issue:
5(5)
Published: July 2, 2024
Abstract
Exciton
binding
energy
(
E
b
)
has
been
regarded
as
a
critical
parameter
in
charge
separation
during
photovoltaic
conversion.
Minimizing
the
of
materials
can
facilitate
exciton
dissociation
low‐driving
force
organic
solar
cells
(OSCs)
and
thus
improve
power
conversion
efficiency
(PCE);
nevertheless,
diminishing
with
deliberate
design
principles
remains
significant
challenge.
Herein,
bulky
side
chain
steric
hindrance
structure
was
inserted
into
Y‐series
acceptors
to
minimize
by
modulating
intra‐
intermolecular
interaction.
Theoretical
experimental
results
indicate
that
hindrance‐induced
optimal
interaction
enhance
molecular
polarizability,
promote
electronic
orbital
overlap
between
molecules,
delocalized
transfer
pathways,
thereby
resulting
low
.
The
conspicuously
reduced
obtained
Y‐ChC5
pinpoint
modulation
detrimental
effects
on
low‐driving‐force
OSCs,
achieving
remarkable
PCE
19.1%
over
95%
internal
quantum
efficiency.
Our
study
provides
new
rationale
reduce
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Aug. 30, 2024
Abstract
Light‐emitting
organic
small
molecules
require
high
internal
and
external
quantum
efficiencies
with
excellent
radiative
characteristics
for
their
potential
application
in
next‐generation
optoelectronics.
Nonetheless,
achieving
efficiency
solid
states
remains
a
formidable
challenge,
primarily
owing
to
the
non‐radiative
processes.
Therefore,
conformational
modulation
is
pivotal
influencing
emission
properties
mitigate
decay.
Notably,
modifying
intra‐
intermolecular
non‐covalent
interactions
(NCIs)
promising
strategy
that
can
simultaneously
realize
rigidity
stabilization
of
flexible
single
bonds,
thus
suppressing
reorganization
energy
associated
Consequently,
considerable
enhancement
attainable
through
adept
manipulation
NCIs,
corresponding
systems
ranging
from
multimolecular
networks
states.
This
review
systematically
summarizes
analyzes
influence
diverse
NCIs
efficient
light‐emitting
molecules.
The
effects
on
single‐and
multimolecular‐systems
are
discussed,
based
fundamentals
light
mechanism
correlation
between
molecular
design
photophysical
properties.
Additionally,
strategic
perspectives
provided
advancement
future
this
serves
as
comprehensive
library,
providing
an
up‐to‐date
overview
leveraging
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
