Small,
Journal Year:
2022,
Volume and Issue:
19(3)
Published: Nov. 30, 2022
Abstract
Active
layer
material
plays
a
critical
role
in
promoting
the
performance
of
an
organic
solar
cell
(OSC).
Small‐molecule
(SM)
materials
have
merits
well‐defined
chemical
structures,
few
batch‐to‐batch
variations,
facile
synthesis
and
purification
procedures,
easily
tuned
properties.
SM‐donor
non‐fullerene
acceptor
(NFA)
innovations
recently
produced
all‐small‐molecule
(ASM)
devices
with
power
conversion
efficiencies
that
exceed
17%
approach
those
their
polymer‐based
counterparts,
thereby
demonstrating
great
future
commercialization
potential.
In
this
review,
recent
progress
both
SM
donors
NFAs
to
illustrate
structure–property
relationships
various
morphology‐regulation
strategies
are
summarized.
Finally,
ASM‐OSC
challenges
outlook
discussed.
Chemical Reviews,
Journal Year:
2022,
Volume and Issue:
122(18), P. 14180 - 14274
Published: Aug. 5, 2022
Organic
photovoltaics
(OPVs)
have
progressed
steadily
through
three
stages
of
photoactive
materials
development:
(i)
use
poly(3-hexylthiophene)
and
fullerene-based
acceptors
(FAs)
for
optimizing
bulk
heterojunctions;
(ii)
development
new
donors
to
better
match
with
FAs;
(iii)
non-fullerene
(NFAs).
The
application
NFAs
an
A–D–A
configuration
(where
A
=
acceptor
D
donor)
has
enabled
devices
efficient
charge
generation
small
energy
losses
(Eloss
<
0.6
eV),
resulting
in
substantially
higher
power
conversion
efficiencies
(PCEs)
than
FA-based
devices.
discovery
Y6-type
(Y6
2,2′-((2Z,2′Z)-((12,13-bis(2-ethylhexyl)-3,9-diundecyl-12,13-dihydro-[1,2,5]-thiadiazolo[3,4-e]-thieno[2″,3″:4′,5′]thieno-[2′,3′:4,5]pyrrolo-[3,2-g]thieno-[2′,3′:4,5]thieno-[3,2-b]indole-2,10-diyl)bis(methanylylidene))bis(5,6-difluoro-3-oxo-2,3-dihydro-1H-indene-2,1-diylidene))dimalononitrile)
A–DA′
D–A
further
propelled
the
PCEs
go
beyond
15%
due
smaller
Eloss
values
(∼0.5
eV)
external
quantum
efficiencies.
Subsequently,
Y6-series
single-junction
increased
>19%
may
soon
approach
20%.
This
review
provides
update
recent
progress
OPV
following
aspects:
developments
novel
donors,
understanding
structure–property
relationships
underlying
mechanisms
state-of-the-art
OPVs,
tasks
underpinning
commercialization
such
as
device
stability,
module
development,
potential
applications,
high-throughput
manufacturing.
Finally,
outlook
prospects
section
summarizes
remaining
challenges
technology.
Energy & Environmental Science,
Journal Year:
2020,
Volume and Issue:
14(1), P. 90 - 105
Published: Nov. 26, 2020
In
this
review,
current
research
status
about
the
machine
learning
use
in
organic
solar
cell
is
reviewed.
We
have
discussed
challenges
anticipating
data
driven
material
design.
Advanced Materials,
Journal Year:
2021,
Volume and Issue:
34(46)
Published: Nov. 19, 2021
Ternary
blend
organic
solar
cells
(TB-OSCs)
incorporating
multiple
donor
and/or
acceptor
materials
into
the
active
layer
have
emerged
as
a
promising
strategy
to
simultaneously
improve
overall
device
parameters
for
realizing
higher
performances
than
binary
devices.
Whereas
introducing
also
results
in
more
complicated
morphology
their
counterparts.
Understanding
is
crucially
important
further
improving
performance
of
TB-OSC.
This
review
introduces
solubility
and
miscibility
that
affect
ternary
blends.
Then,
this
summarizes
recent
processes
study
on
blends
from
aspects
molecular
crystallinity,
packing
orientation,
domain
size
purity,
directly
observation
morphology,
vertical
phase
separation
well
morphological
stability.
Finally,
summary
prospects
TB-OSCs
are
concluded.
Journal of Materials Chemistry A,
Journal Year:
2022,
Volume and Issue:
10(7), P. 3255 - 3295
Published: Jan. 1, 2022
This
review
presents
the
recent
progress
in
organic
solar
cells
based
on
non-fullerene
acceptors,
with
a
wide
coverage
from
material
synthesis
and
processing
to
interface
engineering,
device
structure,
large-area
fabrication,
stability.
InfoMat,
Journal Year:
2020,
Volume and Issue:
3(2), P. 175 - 200
Published: Nov. 30, 2020
Abstract
Recently,
solution‐processed
organic
solar
cells
combining
small‐molecule
donor
and
nonfullerene
acceptor
have
achieved
breakthrough
results
with
the
certified
efficiency
over
15%.
These
impressive
progresses
are
driven
by
concerted
efforts
of
modifying
materials
optimizing
morphology.
Considering
defined
chemical
structures
easily
tuned
properties
materials,
it
is
great
necessity
importance
to
pay
more
attentions
on
topic
all‐small
molecule
cells.
Here,
we
summarize
recent
progress
from
prospect
materials'
evolutions
expect
provide
some
hints
for
its
future
developments.
The
involved
donors
including
oligothiophene‐,
benzodithiophene‐,
naphthodithiophene‐,
porphyrin‐based
discussed
illustrate
relationship
structures,
properties,
device
performance.
Then,
acceptors
in
molecules
highlight
their
vital
role.
Finally,
will
present
challenges
this
research
area.
image
Energy & Environmental Science,
Journal Year:
2021,
Volume and Issue:
14(9), P. 5009 - 5016
Published: Jan. 1, 2021
We
synthesized
three
fluorinated
non-fullerene
acceptors,
BTP-F,
Y6-F
and
L8-BO-F,
further
used
them
as
the
third
components
to
fabricate
ternary
organic
solar
cells.
The
PM6:BTP-eC9:BTP-F
device
yielded
a
high
efficiency
of
18.45%.
