Aggregate,
Journal Year:
2023,
Volume and Issue:
5(2)
Published: Nov. 20, 2023
Abstract
The
power
conversion
efficiency
of
organic
photovoltaics
(OPVs)
has
witnessed
continuous
breakthroughs
in
the
past
few
years,
mostly
benefiting
from
extensive
use
a
facile
ternary
blending
strategy
by
host
polymer
donor:small
molecule
acceptor
mixture
with
second
small
acceptor.
Nevertheless,
this
rather
general
used
well‐known
PM6
systems
fails
constructing
high‐performance
P3HT‐based
OPVs.
As
result,
efficiencies
all
resulting
blends
based
on
benchmark
P3HT:ZY‐4Cl
and
are
no
more
than
8%.
Employing
mutual
miscibility
binary
as
guide
to
screen
acceptor,
here
we
were
able
break
longstanding
10%‐efficiency
barrier
OPVs
P3HT
dual
nonfullerene
acceptors.
With
rational
approach,
identified
multifunctional
BTP‐2Br
simultaneously
improve
photovoltaic
performance
both
PM6‐based
Attractively,
P3HT:ZY‐4Cl:BTP‐2Br
blend
exhibited
record‐breaking
11.41%
for
This
is
first‐ever
report
that
over
11%
achieved
Importantly,
study
helps
community
rely
less
trial‐and‐error
methods
solar
cells.
ACS Energy Letters,
Journal Year:
2022,
Volume and Issue:
7(8), P. 2547 - 2556
Published: July 13, 2022
Here,
we
combine
two
donor
polymers
with
a
relatively
short
synthesis
method
and
fabricate
ternary
organic
solar
cells
(OSCs)
high
efficiency
decent
figure-of-merit.
A
series
of
characterizations
show
that
the
optimal
morphology
blend
is
result
coupling
competition
PTQ10
PTVT-T,
where
molecular
packing
phase
separation
motif
broken
but
strong
aggregation
PTVT-T
suppressed,
resulting
in
efficient
charge
transport
collection,
as
well
suppressed
bimolecular
recombination.
Moreover,
previously
reported
solvent-vapor-assisted
casting
method,
taken
an
understanding-guided
optimization,
pushes
system's
to
19.11%.
Furthermore,
PTVT-T-containing
systems
clearly
better
light
soaking
thermal
stability
than
binary
control
system,
benefiting
from
durable
polymer
matrix.
Our
work
provides
useful
approach
for
developing
efficient,
stable,
low-cost
OSCs
based
on
state-of-the-art
donor/acceptor
through
design.
Advanced Materials,
Journal Year:
2022,
Volume and Issue:
34(45)
Published: Sept. 15, 2022
With
the
continuous
breakthrough
of
efficiency
organic
photovoltaics
(OPVs),
their
practical
applications
are
on
agenda.
However,
thickness
tolerance
and
upscaling
in
recently
reported
high-efficiency
devices
remains
challenging.
In
this
work,
multiphase
morphology
desired
carrier
behaviors
realized
by
utilizing
a
quaternary
strategy.
Notably,
exciton
separation,
mobility,
lifetime
enhanced
significantly,
recombination
energy
loss
(Eloss
)
reduced,
thus
beneficial
for
higher
short-circuit
density
(JSC
),
fill
factor
(FF),
open-circuit
voltage
(VOC
system.
Moreover,
intermixing-phase
size
is
optimized,
which
favorable
constructing
thick-film
large-area
devices.
Finally,
device
with
110
nm-thick
active
layer
shows
an
outstanding
power
conversion
(PCE)
19.32%
(certified
19.35%).
Furthermore,
(1.05
72.25
cm2
nm
present
PCEs
18.25%
12.20%,
305
film
(0.0473
delivers
PCE
17.55%,
among
highest
values
reported.
The
work
demonstrates
potential
strategy
OPVs
promotes
application
future.
Energy & Environmental Science,
Journal Year:
2023,
Volume and Issue:
16(7), P. 2732 - 2758
Published: Jan. 1, 2023
This
review
summarizes
the
side-chain
engineering
of
nonfullerene
small-molecule
acceptors
(SMAs)
in
field
organic
solar
cells,
discusses
key
structure–property
relationships
depth
and
future
directions
engineering.
Small,
Journal Year:
2022,
Volume and Issue:
18(15)
Published: March 4, 2022
Abstract
Recent
efforts
in
the
field
of
organic
photodetectors
(OPD)
have
been
focused
on
extending
broadband
detection
into
near‐infrared
(NIR)
region.
Here,
two
blends
an
ultralow
bandgap
push–pull
polymer
TQ‐T
combined
with
state‐of‐the‐art
non‐fullerene
acceptors,
IEICO‐4F
and
Y6,
are
compared
to
obtain
OPDs
for
sensing
NIR
beyond
1100
nm,
which
is
cut
off
benchmark
Si
photodiodes.
It
observed
that
TQ‐T:IEICO‐4F
device
has
a
superior
IR
responsivity
(0.03
AW
‐1
at
1200
nm
−2
V
bias)
can
detect
infrared
light
up
1800
while
TQ‐T:Y6
blend
shows
lower
0.01
.
Device
physics
analyses
tied
spectroscopic
morphological
studies
link
performance
OPD
its
faster
charge
separation
as
well
more
favorable
donor–acceptor
domains
mixing.
In
formation
large
agglomerates
exceed
exciton
diffusion
length,
leads
high
recombination,
observed.
An
application
these
devices
biometric
sensors
real‐time
heart
rate
monitoring
via
photoplethysmography,
utilizing
light,
demonstrated.
Materials,
Journal Year:
2024,
Volume and Issue:
17(5), P. 1165 - 1165
Published: March 1, 2024
The
evolution
of
photovoltaic
cells
is
intrinsically
linked
to
advancements
in
the
materials
from
which
they
are
fabricated.
This
review
paper
provides
an
in-depth
analysis
latest
developments
silicon-based,
organic,
and
perovskite
solar
cells,
at
forefront
research.
We
scrutinize
unique
characteristics,
advantages,
limitations
each
material
class,
emphasizing
their
contributions
efficiency,
stability,
commercial
viability.
Silicon-based
explored
for
enduring
relevance
recent
innovations
crystalline
structures.
Organic
examined
flexibility
potential
low-cost
production,
while
perovskites
highlighted
remarkable
efficiency
gains
ease
fabrication.
also
addresses
challenges
scalability,
environmental
impact,
offering
a
balanced
perspective
on
current
state
future
these
technologies.
Energy & Environmental Science,
Journal Year:
2021,
Volume and Issue:
14(6), P. 3301 - 3322
Published: Jan. 1, 2021
This
review
article
presents
the
state-of-the-art
in
high-throughput
computational
and
experimental
screening
routines
with
application
organic
solar
cells,
including
materials
discovery,
device
optimization
machine-learning
algorithms.
