Energy & Environmental Science,
Год журнала:
2024,
Номер
17(19), С. 7318 - 7329
Опубликована: Янв. 1, 2024
An
in-situ
cross-linkable
monomer
is
carefully
developed
into
blend
films
to
finely
manipulate
the
molecular
packing,
crystallization
and
nanomorphology
during
film
formation.
As
a
result,
stabilized
PCEs
of
19.84%
for
rigid
device
18.32%
flexible
organic
solar
cells
are
achieved.
Angewandte Chemie,
Год журнала:
2024,
Номер
136(18)
Опубликована: Март 9, 2024
Abstract
The
hole‐transporting
material
(HTM),
poly
(3,4‐ethylene
dioxythiophene)
poly(styrene
sulfonate)
(PEDOT
:
PSS),
is
the
most
widely
used
in
realization
of
high‐efficiency
organic
solar
cells
(OSCs).
However,
stability
PEDOT
PSS‐based
OSCs
quite
poor,
arising
from
its
strong
acidity
and
hygroscopicity.
In
addition,
PSS
has
an
absorption
infrared
region
high
highest
occupied
molecular
orbital
(HOMO)
energy
level,
thus
limiting
enhancement
short‐circuit
current
density
(
J
sc
)
open‐circuit
voltage
V
oc
),
respectively.
Herein,
two
asymmetric
self‐assembled
molecules
(SAMs),
namely
BrCz
BrBACz,
were
designed
synthesized
as
HTM
binary
based
on
well‐known
system
PM6
Y6,
eC9,
L8‐BO,
D18
eC9.
Compared
with
BrCz,
BrBACz
shows
larger
dipole
moment,
deeper
work
function
lower
surface
energy.
Moreover,
not
only
enhances
photon
harvesting
active
layer,
but
also
minimizes
losses
well
improves
interface
charge
extraction/
transport.
Consequently,
eC9‐based
OSC
using
exhibits
a
champion
efficiency
19.70
%
remarkable
29.20
mA
cm
−2
0.856
V,
which
record
for
so
far.
unencapsulated
device
maintains
95.0
original
after
1,000
hours
storage
at
air
ambient,
indicating
excellent
long‐term
stability.
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 25, 2024
Abstract
Organic
solar
cells
(OSCs)
have
emerged
as
promising
candidates
for
renewable
energy
harvesting
due
to
their
lightweight,
flexible,
and
low‐cost
fabrication
potential.
The
efficiency
of
OSCs
is
largely
determined
by
the
choice
solvents,
which
significantly
affect
film
morphology
active
layers,
intermixed
donor‐acceptor
domains,
overall
device
performance.
Beginning
with
an
introduction
importance
solvent
selection,
screening
classification
emphasizing
characteristics
based
on
sustainability,
solubility,
other
additional
considerations
are
explored.
Various
non‐halogenated
highlighting
commonly
used
aromatic
biomass‐derived
water/alcohol‐based
solvents
state‐of‐the‐art
donor
acceptor
materials,
focusing
efficient
materials
such
PM6
D18,
high‐performing
Y‐series
acceptors
also
presented.
Strategies
developing
high‐performance
processed
using
examined,
including
engineering
additive
additive‐free
approaches,
ternary
strategies,
layer‐by‐layer
techniques.
large‐area
devices
addressed,
blade‐coating,
slot‐coating,
processing
Finally,
this
review
outlines
future
research
directions
in
OSCs,
need
continuous
innovation
overcome
existing
limitations
propel
OSC
technology
toward
commercial
viability.
Energy & Environmental Science,
Год журнала:
2024,
Номер
17(19), С. 7318 - 7329
Опубликована: Янв. 1, 2024
An
in-situ
cross-linkable
monomer
is
carefully
developed
into
blend
films
to
finely
manipulate
the
molecular
packing,
crystallization
and
nanomorphology
during
film
formation.
As
a
result,
stabilized
PCEs
of
19.84%
for
rigid
device
18.32%
flexible
organic
solar
cells
are
achieved.