Chemical Communications,
Journal Year:
2023,
Volume and Issue:
60(7), P. 793 - 803
Published: Dec. 14, 2023
Polyimide
covalent
organic
frameworks
(PI-COFs)
are
outstanding
functional
materials
for
electrochemical
energy
conversion
and
storage
owing
to
their
integrated
advantages
of
the
high
electroactive
feature
polyimides
periodic
porous
structure
COFs.
Nevertheless,
only
anhydride
monomers
with
Advanced Energy Materials,
Journal Year:
2020,
Volume and Issue:
11(5)
Published: Dec. 27, 2020
Abstract
Organic
solar
cells
(OSCs)
based
on
nonfullerene
acceptors
(NFAs)
have
made
significant
breakthrough
in
their
device
performance,
now
achieving
a
power
conversion
efficiency
of
≈18%
for
single
junction
devices,
driven
by
the
rapid
development
molecular
design
and
engineering
recent
years.
However,
long‐term
stability
remains
major
challenge
to
overcome
commercialization,
due
large
part
current
lack
understanding
degradation
mechanisms
as
well
rules
enhancing
stability.
In
this
review,
progress
high
performance
NFA‐based
OSCs
is
specific
focus.
First,
an
overview
advances
several
classes
various
targeted
applications
provided,
before
presenting
critical
review
different
identified
through
photochemical‐,
photo‐,
morphological
pathways.
Potential
strategies
address
these
further
enhancement,
from
design,
interfacial
engineering,
morphology
control
perspectives,
are
also
discussed.
Finally,
outlook
given
highlighting
remaining
key
challenges
toward
NFA‐OSCs.
Materials Chemistry Frontiers,
Journal Year:
2021,
Volume and Issue:
5(8), P. 3257 - 3280
Published: Jan. 1, 2021
This
review
provides
a
detailed
overview
of
PM6:Y6-based
organic
solar
cells
(OSCs),
including
the
underlying
mechanisms,
terpolymers
derived
from
PM6,
ternary
or
quaternary
OSCs,
interfacial
engineering
and
electrode
progress.
Chemical Reviews,
Journal Year:
2023,
Volume and Issue:
123(13), P. 8395 - 8487
Published: June 5, 2023
The
assembly
of
conjugated
organic
molecules
from
solution
to
solid-state
plays
a
critical
role
in
determining
the
thin
film
morphology
and
optoelectronic
properties
solution-processed
electronics
photovoltaics.
During
evaporative
processing,
π-conjugated
systems
can
assemble
via
various
forms
intermolecular
interactions,
forming
distinct
aggregate
structures
that
drastically
tune
charge
transport
landscape
solid-state.
In
blend
composed
donor
polymer
acceptor
molecules,
neat
materials
couples
with
phase
separation
crystallization
processes,
leading
complex
transition
pathways
which
govern
morphology.
this
review,
we
provide
an
in-depth
review
molecular
processes
polymers
nonfullerene
small
molecule
acceptors
discuss
their
impact
on
properties.
We
then
shift
our
focus
relevant
solar
cells
fundamentals
highlight
how
processing
conditions
affect
device
performance.
Solar RRL,
Journal Year:
2023,
Volume and Issue:
7(11)
Published: April 8, 2023
Ternary
strategy
has
attracted
extensive
attention
for
bulk
heterojunction
organic
solar
cells
(BHJ
OSCs)
owing
to
their
potentially
improved
light
harvesting,
cascaded
energy
levels,
and
optimized
film
morphology
of
binary
BHJs.
Herein,
three
novel
star‐shaped
unfused
ring
electron
acceptors
(SSUFREAs),
i.e.,
H
1–3,
with
without
fluorine‐substituent
in
phenyl
core
or
peripheral
group
are
designed
synthesized
as
third
components
via
direct
C–H
arylation
incorporate
into
PM6:Y6
BHJ
films.
The
structure–property–performance
dependence
study
reveals
that
the
isotropic
charge
transfer,
complementary
star‐shape
structure
absorption,
energy‐level
cascades
1–3
PM6
Y6
allow
ternary
BHJs
have
higher
power
conversion
efficiency
(PCE)
compared
BHJ.
Among
them,
involving
fluorine‐free
1,
1:PM6:Y6,
possesses
highest
PCE
(16.57%)
high‐lying
frontier
molecular
orbital
enlarged
torsion
angle,
which
enhances
open‐circuit
voltage,
inhibits
excessive
crystallization
Y6,
facilitates
exciton
dissociation
well
collection.
findings
indicate
SSUFREAs
great
potential
serve
optimize
improve
voltage
OSCs.
International Journal of Quantum Chemistry,
Journal Year:
2020,
Volume and Issue:
120(22)
Published: July 13, 2020
Abstract
The
development
of
organic
electron
acceptor
materials
is
one
the
key
factors
for
realizing
high‐performance
solar
cells
(OSCs).
Nonfullerene
acceptors,
compared
to
traditional
fullerene
materials,
have
gained
much
impetus
owing
their
better
optoelectronic
tunabilities
and
lower
cost,
as
well
higher
stability.
Therefore,
5
three‐dimensional
(3D)
cross‐shaped
having
a
spirobifullerene
core
flanked
with
2,1,3‐benzothiadiazole
are
designed
from
recently
synthesized
highly
efficient
molecule
SF(BR)
4
investigated
in
detail
regard
use
molecules
OSCs.
density
functional
theory
(DFT)
time‐dependent
DFT
(TDDFT)
calculations
been
performed
estimation
frontier
molecular
orbital
(FMO)
analysis,
states
reorganization
energies
hole,
dipole
moment,
open‐circuit
voltage,
photo‐physical
characteristics,
transition
matrix
analysis.
In
addition,
structure‐property
relationship
studied,
influence
end‐capped
modifications
on
photovoltaic,
photo‐physical,
electronic
properties
newly
selected
(
H1‐H5
)
calculated
reference
R
.
structural
tailoring
at
terminals
was
found
effectively
tune
FMO
band
gap,
energy
levels,
absorption
spectra,
energy,
binding
value
H1
H5
3D
suppress
intermolecular
aggregation
PTB7‐Th
blend,
which
leads
high
efficiency
material
Consequently,
achieved
It
proposed
that
conceptualized
superior
than
core‐based
and,
thus,
recommended
experiments
future
developments
cells.
Energy & Environmental Science,
Journal Year:
2021,
Volume and Issue:
15(1), P. 384 - 394
Published: Dec. 3, 2021
A
star-shaped
nitrogen
heterocyclic-ring
acceptor
TF1
featuring
a
unique
3D
skeleton
was
successfully
utilized
to
inhibit
excessive
molecular
aggregation
of
Y6
improve
the
stability
and
performance
organic
solar
cells.
Small,
Journal Year:
2021,
Volume and Issue:
17(43)
Published: June 10, 2021
Organic
photodetectors
(OPDs),
which
usually
work
as
photodiodes,
photoconductors,
or
phototransistors,
have
emerged
candidates
for
next-generation
light
sensing.
However,
low
response
speed
caused
by
carrier
mobility
and
resistance-capacitance
(RC)
time
constant,
severely
hinders
the
commercialization
of
OPDs.
Herein,
authors
demonstrate
a
state-of-the-art
OPD
with
record
146.8
ns
employing
tandem
structure
to
simultaneously
reduce
both
transit
RC
constant
device,
is
faster
than
that
previously
reported
OPDs
far
they
know.
Moreover,
benefitting
from
multi-level
barrier
enhancement
voltage
division
engendered
structure,
an
ultralow
noise
current
7.82
×
10-14
A
Hz-1/2
obtained,
well
wide
detection
range
in
300-1000
nm.
In
addition,
are
successfully
integrated
into
optical
communication
system
signal
receivers,
demonstrating
precise
digital
visible
near-infrared
light.
It
believed
promising
application
potential
wireless
transmission
system.
ACS Applied Energy Materials,
Journal Year:
2021,
Volume and Issue:
4(11), P. 11899 - 11981
Published: Oct. 26, 2021
Organic
solar
cells
are
on
the
dawn
of
next
era.
The
change
focus
toward
non-fullerene
acceptors
has
introduced
an
enormous
amount
organic
n-type
materials
and
drastically
increased
power
conversion
efficiencies
photovoltaics,
now
exceeding
18%,
a
value
that
was
believed
to
be
unreachable
some
years
ago.
In
this
Review,
we
summarize
recent
progress
in
design
ladder-type
fused-ring
2018–2020.
We
thereby
concentrate
single
layer
heterojunction
omit
tandem
architectures
as
well
ternary
cells.
By
analyzing
more
than
700
structures,
highlight
basic
principles
their
influence
optical
electrical
structure
acceptor
molecules
review
photovoltaic
performance
obtained
so
far.
This
Review
should
give
extensive
overview
plenitude
motifs
but
will
also
help
understand
which
structures
strategies
beneficial
for
designing
highly
efficient
Materials Horizons,
Journal Year:
2022,
Volume and Issue:
9(8), P. 2097 - 2108
Published: Jan. 1, 2022
This
minireview
highlights
the
recent
progress
on
sequential
solution-processed
fullerene-free
OPVs,
which
can
improve
power
conversion
efficiency,
stability,
and
drive
industrial
applications
in
semitransparent
large-area
OPVs.