A Platinum Complex‐Based Dimerized Electron Acceptor for Efficient Organic Solar Cells
Advanced Energy Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 3, 2025
Abstract
Metal–organic
complexes
have
demonstrated
excellent
performance
in
organic
light‐emitting
diodes,
yet
their
potential
solar
cells
(OSCs)
remains
underexplored.
In
this
study,
a
novel
metal–organic
complex,
Pt‐Y,
which
features
platinum
core
connected
to
Y‐acceptor
arms,
for
application
OSCs
is
designed
and
synthesized.
The
dimerized
Pt‐Y
acceptor
prepared
through
straightforward
reactions,
with
the
key
precursor
linking
metal
Y‐acceptors
synthesized
Sonogashira
coupling.
Steady‐state
transient
photoluminescence
measurements
revealed
that
exhibits
distinct
singlet
triplet
states
microsecond
lifetimes—significantly
longer
than
nanosecond
lifetimes
of
without
metal.
Incorporating
as
third
component
ternary
has
resulted
remarkable
efficiency
19.2%.
Further
morphological
analysis
absorption
indicate
displays
miscibility
Y‐acceptor,
leading
minimal
phase
separation
formation
fibrillar
structures.
These
structures
enhance
charge
transport
while
reducing
recombination.
This
work
presents
facile
approach
developing
exceptional
photovoltaic
OSCs.
Язык: Английский
A review of metal oxide semiconductors: Progress in solution-processed photovoltaic Technologies
Journal of Alloys and Compounds,
Год журнала:
2025,
Номер
unknown, С. 180207 - 180207
Опубликована: Апрель 1, 2025
Язык: Английский
High-Crystallinity Polymer-Driven Fiber Network Morphology Optimization for Efficient Ternary All-Polymer Organic Solar Cells
ACS Applied Polymer Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 8, 2025
Язык: Английский
Synergistic regulation of the active layer morphology by halogenated methoxybenzene derivative solid additives for high-performance organic solar cells
Materials Today Chemistry,
Год журнала:
2025,
Номер
46, С. 102730 - 102730
Опубликована: Май 9, 2025
Язык: Английский
Polymer Conformation and Persistence Length Govern Molecular Weight‐Dependent Photovoltaic Performance in Organic Solar Cells
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 23, 2025
Abstract
The
molecular
weight
of
conjugated
polymers
profoundly
influences
organic
solar
cell
(OSC)
efficiency,
yet
the
structural
mechanisms
driving
this
relationship
remain
unresolved.
Here,
it
is
demonstrated
that
polymer
conformation,
governed
by
backbone
rigidity
and
persistence
length,
critical
determinant
dependent
performance
in
bulk‐heterojunction
OSCs.
By
analyzing
benchmark
PM6
D18,
opposing
trends
uncovered:
achieves
peak
power
conversion
efficiency
(PCE)
19.11%
at
low
number‐average
(
M
n
∼51
kDa),
18.47%
medium‐
(68
declining
to
16.83%
high
(122
whereas
D18
improves
from
16.87%
(41
kDa)
17.75%
(67
19.15%
(83
kDa).
Neutron
scattering
computational
modeling
reveal
D18's
bulky
2‐butyloctyl
side
chains
impose
rotational
barriers,
stiffening
extending
its
length.
This
enables
high‐
form
ordered
crystalline
domains
enhance
charge
transport.
In
contrast,
PM6's
flexible
shortens
amorphous
tie‐chain
formation
disrupts
crystallinity
exacerbates
recombination.
These
results
establish
conformation
length
as
universal
descriptors
linking
microstructure,
resolving
long‐standing
contradictions
design.
Язык: Английский
Fullerene‐hybridized Fused‐ring Electron Acceptor with High Dielectric Constant and Isotropic Charge Transport for Organic Solar Cells
Angewandte Chemie,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 15, 2024
Abstract
A
novel
isotropic
fullerene‐hybridized
fused‐ring
electron
acceptor,
designated
C
60
‐Y,
has
been
synthesized
via
a
mild
[4+2]
Diels–Alder
cycloaddition
reaction
with
fullerene
to
enhance
the
performance
of
organic
solar
cells
(OSCs).
Comparative
analysis
shows
that
‐Y
significantly
outperforms
control
acceptor
Me−Y,
notable
increase
in
relative
dielectric
constant
from
2.79
3.95.
This
improvement
enhances
exciton
dissociation
and
reduces
non‐radiative
energy
losses.
Additionally,
molecular
packing
similar
fullerene,
facilitates
efficient
interface
formation
donor
polymers
improves
charge
mobility.
As
result,
incorporating
as
an
increases
power
conversion
efficiency
(PCE)
binary
OSCs
15.02
%,
surpassing
13.31
%
achieved
Me−Y.
Moreover,
when
integrated
into
ternary
blend
system,
impressive
PCE
19.22
is
achieved,
top‐performing
among
reported
utilizing
derivatives
third
component.
These
results
suggest
acceptors
like
hold
great
potential
for
advancing
high‐efficiency
by
enhancing
dissociation,
reducing
losses,
improving
Язык: Английский
Fullerene‐hybridized Fused‐ring Electron Acceptor with High Dielectric Constant and Isotropic Charge Transport for Organic Solar Cells
Angewandte Chemie International Edition,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 15, 2024
Abstract
A
novel
isotropic
fullerene‐hybridized
fused‐ring
electron
acceptor,
designated
C
60
‐Y,
has
been
synthesized
via
a
mild
[4+2]
Diels–Alder
cycloaddition
reaction
with
fullerene
to
enhance
the
performance
of
organic
solar
cells
(OSCs).
Comparative
analysis
shows
that
‐Y
significantly
outperforms
control
acceptor
Me−Y,
notable
increase
in
relative
dielectric
constant
from
2.79
3.95.
This
improvement
enhances
exciton
dissociation
and
reduces
non‐radiative
energy
losses.
Additionally,
molecular
packing
similar
fullerene,
facilitates
efficient
interface
formation
donor
polymers
improves
charge
mobility.
As
result,
incorporating
as
an
increases
power
conversion
efficiency
(PCE)
binary
OSCs
15.02
%,
surpassing
13.31
%
achieved
Me−Y.
Moreover,
when
integrated
into
ternary
blend
system,
impressive
PCE
19.22
is
achieved,
top‐performing
among
reported
utilizing
derivatives
third
component.
These
results
suggest
acceptors
like
hold
great
potential
for
advancing
high‐efficiency
by
enhancing
dissociation,
reducing
losses,
improving
Язык: Английский
Sol‐Gel Processed Metal‐Organic Complex as Robust Hole‐Transporting Layer Enabling Efficient Organic Solar Cells
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 13, 2024
Abstract
Inorganic
metal
oxides
and
salts
are
widely
employed
as
hole‐transporting
layers
(HTLs)
in
organic
solar
cells
(OSCs)
due
to
their
advantages
of
low
cost
facile
preparation.
However,
issues
such
severe
agglomeration
can
negatively
impact
film
quality,
leading
reduced
reproducibility
device
stability.
To
address
these
challenges,
this
work
reports
the
synthesis
a
vanadium
trichloride‐benzene
tricarboxylic
acid
(BTC)
complex
(denoted
VB)
via
sol‐gel
process
under
mild
conditions
(60
°C
annealing).
The
VB
demonstrates
well‐aligned
energy
levels
enhanced
conductivity
when
integrated
with
PM6:L8‐BO
active
layer.
Consequently,
binary
OSCs
incorporating
HTL
achieve
high‐power
conversion
efficiency
(PCE)
up
19.60%.
Notably,
processing
technique
offers
versatile
approach
for
fabrication
metal‐organic
complex,
resulting
uniform
dense
film.
robust
coordination
network
structure
endows
VB‐based
exceptional
thermal
stability,
evidenced
by
T
80
(PCE
retention
80%
initial
value)
lifetime
5142
h,
which
is
among
best
performances
reported
state‐of‐the‐art
OSCs.
Язык: Английский