ChemPlusChem,
Journal Year:
2023,
Volume and Issue:
88(5)
Published: May 1, 2023
The
vinylene-bridged
helical
perylene
diimide
(PDI)
dimer
(PDI2)
with
a
build-in
twisted
configuration
is
an
alternative
building
block
to
the
parent
PDI
for
construction
of
efficient
non-fullerene
acceptor
(NFAs).
Moreover,
it
has
been
proved
asymmetric
strategy
plays
vital
role
in
development
NFAs.
Herein,
we
designed
and
synthesized
pair
acceptor-donor-acceptor
(A-D-A)
type
PDI2
derivatives,
namely
IDTIC-PDI
IDT-diPDI2,
which
contain
symmetric
end-cap
units,
respectively.
To
determine
structure-performance
relationships
strategy,
organic
solar
cells
(OSCs)
based
on
these
two
molecules
were
fabricated
measured.
device
exhibits
much
higher
PCE
8.23
%
than
that
IDT-diPDI2
(5.21
%).
These
results
reveal
symmetry
breaking
provides
effective
way
optimize
photovoltaic
performances
OSCs.
Energy & Environmental Science,
Journal Year:
2022,
Volume and Issue:
16(1), P. 76 - 88
Published: Dec. 3, 2022
This
perspective
systematically
discusses
strategies
of
optimization
active
layer
films
in
the
preparation
organic
photovoltaic
(OPV)
devices
by
green
printing.
Advanced Materials,
Journal Year:
2023,
Volume and Issue:
unknown
Published: Dec. 4, 2023
The
evolution
of
organic
semiconductors
for
photovoltaics
(OPVs)
has
resulted
in
unforeseen
outcomes.
This
provided
substitute
choices
photoactive
layer
materials,
which
effectively
convert
sunlight
into
electricity.
Recently
developed
OPV
materials
have
narrowed
down
the
gaps
efficiency,
stability,
and
cost
devices.
Records
now
show
power
conversion
efficiency
single-junction
devices
closing
to
20%.
Despite
this,
there
is
still
a
gap
between
currently
those
that
meet
requirements
practical
applications,
especially
solution
processability
issue
widely
concerned
field
OPVs.
Based
on
general
rule
structure
determines
properties,
methodologies
enhance
are
reviewed
explored
from
perspective
material
design
views
further
development
processable
presented.
Considering
current
dilemma
existing
evaluation
indicators
cannot
reflect
industrial
more
complete
set
key
performance
proposed
their
considerations.
purpose
this
raise
awareness
boundary
conditions
exist
manufacturing
provide
guidance
academic
research
aspires
contribute
technological
advancements.
Energy Technology,
Journal Year:
2019,
Volume and Issue:
8(1)
Published: Sept. 25, 2019
Organic
photovoltaics
(OPVs)
have
emerged
as
a
promising
renewable
energy
generation
technology
in
past
decades.
However,
the
deep
understanding
of
details
exciton
dissociation
and
carrier
recombination
ternary
organic
solar
cells
(OSCs)
is
still
lacking.
Herein,
novel
OSC
based
on
PTB7‐Th:Y6:ITIC
blend
with
power
conversion
efficiency
(PCE)
enhancement
29%
reported.
A
trade‐off
surprisingly
found
to
exist
between
process.
The
addition
nonfullerene
acceptor
Y6
create
an
efficient
process
but
accelerates
free
Dielectric
properties
are
also
studied
for
OSCs.
into
binary
tune
down
dielectric
constant
active
layer
result
recombination.
best
performance
obtained
PTB7‐Th:Y6(5
wt%):ITIC(95
wt%)‐based
devices.
In
its
balanced
charge
mobility
extraction
process,
devices
reach
balance
thus
achieve
highest
short‐circuit
current
density
(
J
sc
)
value.
ACS Applied Materials & Interfaces,
Journal Year:
2019,
Volume and Issue:
11(42), P. 39010 - 39017
Published: Sept. 24, 2019
Herein,
we
investigate
the
role
of
processing
solvent
additives
on
formation
polymer–perylene
diimide
bulk-heterojunction
active
layers
for
organic
photovoltaics
using
both
spin-coating
and
slot-die
coating
methods.
We
compare
effect
1,8-diiodooctane
(DIO)
diphenyl
ether
(DPE)
as
aggregation
behavior
non-fullerene
acceptor,
N-annulated
perylene
dimer
(tPDI2N-EH),
in
neat
films
blended
with
benzodithiophene-quinoxaline
(BDT-QX,
QX-3)
donor
polymer,
processed
from
toluene
air.
DIO
crystallizes
tPDI2N-EH
acceptor
leads
to
decreased
solar
cell
performance.
DPE
has
a
more
subtle
morphology
an
improved
A
comparison
vs
methods
shows
that
is
prominent
coated
layers.
While
similar
device
power
conversion
efficiencies
are
achieved
(ca.
7.3%
6.5%),
use
improves
film
quality
when
method
employed.
Nanotechnology,
Journal Year:
2021,
Volume and Issue:
33(7), P. 072002 - 072002
Published: May 17, 2021
Solution-processed
organic
photovoltaic
(OPV)
as
a
new
energy
device
has
attracted
much
attention
due
to
its
huge
potential
in
future
commercial
manufacturing.
However,
so
far,
most
of
the
studies
on
high-performance
OPV
have
been
treated
with
halogenated
solvents.
Halogenated
solvents
not
only
pollute
environment,
but
are
also
harmful
human
health,
which
will
negatively
affect
large-scale
production
future.
Therefore,
it
is
urgent
develop
low-toxic
or
non-toxic
non-halogen
solvent-processable
OPV.
Compared
conventional
fullerene
OPVs,
non-fullerene
OPVs
exist
stronger
absorption,
better-matched
levels
and
lower
loss.
Processing
photoactive
layers
non-fullerenes
acceptor
material
broad
advantages
non-halogenated
This
review
introduces
research
progress
by
three
different
kinds
green
aromatic
solvent,
non-aromatic
alcohol
water.
Furthermore,
effects
optimization
strategies
photoelectric
performance
stability
analyzed
detail.
The
current
strategy
can
increase
power
conversion
efficiency
processed
up
17.33%,
close
processing
halogen-containing
Finally,
solvent
discussed.
non-fullerene-based
become
key
development
direction
for
industry.
