Achieving 18.29% efficiency of layer-by-layer all polymer solar cells enabled by iridium complex as energy donor and crystallizing agent
Chemical Engineering Journal,
Год журнала:
2025,
Номер
unknown, С. 160359 - 160359
Опубликована: Фев. 1, 2025
Язык: Английский
Dimerized small-molecule acceptors with electron withdrawing linker for efficient organic solar cells
Chemical Engineering Journal,
Год журнала:
2025,
Номер
unknown, С. 160416 - 160416
Опубликована: Фев. 1, 2025
Язык: Английский
Alkyl Side Chain Modulation of Non‐Fused Polymerized Small Molecular Acceptors for Efficient All‐Polymer Solar Cells
Macromolecular Chemistry and Physics,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 26, 2025
Abstract
Optimizing
the
morphology
within
blends
of
polymer
donors
and
acceptors
is
crucial
for
enhancing
performance
all‐polymer
solar
cells
(all‐PSCs).
Therefore,
development
rational
strategies
to
modulate
aggregation
behavior
polymers,
thereby
driving
formation
favorable
morphology,
holds
great
significance.
In
this
study,
two
non‐fused
polymerized
small
molecular
(PSMAs),
PFBTz‐OD
PFBTz‐DT,
featuring
distinct
alkyl
side
chains
are
designed
synthesized.
Compared
with
PFBTz‐OD,
PFBTz‐DT
exhibits
better
solubility
due
its
longer
chains,
resulting
in
higher
weight
temperature‐dependent
characteristics
solution.
The
all‐PSC
utilizing
PBDB‐T:PFBTz‐DT
attains
a
power
conversion
efficiency
(PCE)
9.74%,
surpassing
PCE
PBDB‐T:PFBTz‐OD
device,
which
stands
at
6.60%.
mainly
attributed
suitable
compatibility
between
donor
acceptor,
facilitates
optimal
phase
separation.
proper
separation,
turn,
enhances
exciton
dissociation,
increases
mobility
both
electrons
holes
minimizes
charge
recombination.
This
study
emphasizes
how
engineering
influences
control
acceptor
solution
packing
film,
essential
optimizing
improving
device
performance.
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
Manipulating Excited-State Dynamics to Unlock Low Energy Loss for High-Performance Organic Solar Cells
ACS Applied Energy Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 21, 2025
Язык: Английский
High‐Molecular‐Weight Polymer Donors Based on Bithiophene Imide for High‐Efficiency and Durable All‐Polymer Solar Cells
Advanced Materials Technologies,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 16, 2025
Abstract
High‐molecular‐weight
(high‐MW)
polymer
semiconductors
are
pivotal
in
advancing
all‐polymer
solar
cells
(all‐PSCs),
known
for
their
excellent
device
stability
and
mechanical
resilience.
However,
the
development
of
high‐MW
donors
(
P
D
s)
faces
challenges
due
to
scarcity
suitable
backbones
that
ensure
both
high
MW
optimal
solubility,
along
with
well‐controlled
miscibility
acceptors
A
s).
Herein,
a
series
bithiophene
imide
(BTI)‐based
s
number‐average
molecular
weights
ranging
from
120.3
145.5
kDa
developed,
offering
improved
aggregation
property
optimized
:
miscibility.
Notably,
PBTI‐OD,
featuring
2‐octadecyldodecyl
side
chain
on
BTI
moiety,
exhibited
superior
blending
character
morphology
s,
outperforming
its
2‐hexyldecyl
2‐decyltetradecyl
analogues
(PBTI‐HD
PBTI‐DT).
As
result,
PBTI‐OD
achieved
impressive
power
conversion
efficiencies
18.47%
19.20%
binary
ternary
devices,
respectively.
Furthermore,
progressive
enhancement
robustness
is
realized
PBTI‐HD
PBTI‐DT,
enabled
by
longer
alkyl
higher
MW.
These
results
underscore
great
potential
BTI‐based
construct
highly
efficient
durable
all‐PSCs,
paving
way
next‐generation
energy
technologies.
Язык: Английский
Disorder‐Induced Localization With on‐Device Tunability in Asymmetric Molecular Semiconductors
Small Methods,
Год журнала:
2025,
Номер
unknown
Опубликована: Июнь 1, 2025
Abstract
High‐mobility
organic
semiconductors
(OSCs)
can
potentially
exhibit
metallic
carrier
behaviors,
and
electron
correlation‐driven
metal‐insulator
transition
(MIT)
has
also
been
realized
by
tuning
the
density.
However,
continuous
Anderson
rarely
reported
in
OSCs,
due
to
difficulty
of
controllable
disorder
introduction
localization
length
tunability.
Here
we
report
a
strategy
on‐device
asymmetric
molecular
that
allows
realization
tunable
MIT
without
structural
phase
transition.
The
be
introduced
finely
co‐regulating
temperature
electric
fields
obtain
various
levels.
effectiveness
this
is
further
confirmed
calculation
mean
free
path,
both
decreasing
with
increased
level.
This
work
provides
an
ideal
testbed
investigate
nontrivial
interplay
transport
property
disordered
systems.
Язык: Английский