ACS Energy Letters,
Год журнала:
2020,
Номер
5(12), С. 3702 - 3707
Опубликована: Ноя. 12, 2020
While
great
progress
has
been
achieved
in
all-polymer
solar
cells
(all-PSCs),
the
efficiency
of
all-PSCs
is
primarily
limited
by
polymer
acceptors
that
lack
a
high
extinction
coefficient,
electron
mobility,
and
good
compatibility
with
donors.
Here
we
designed
developed
acceptor
PFA1
based
on
non-fullerene
framework
fluorine
substituent
1,1-dicyanomethylene-3-indanone
unit.
In
combination
an
electron-donating
polymer,
PTzBI-oF,
blend
film
presents
extended
intensified
absorption
profile,
enhanced
favorable
morphology.
The
optimized
exhibit
remarkably
15.11%,
which
is,
to
best
our
knowledge,
highest
performance
yet
reported
for
all-PSC.
Of
particular
importance
applicability
as
universal
range
donors
achieve
impressively
efficiencies.
These
properties
enable
new
molecular
design
strategy
construction
toward
applications
high-performance
all-PSCs.
Chemical Reviews,
Год журнала:
2022,
Номер
122(18), С. 14180 - 14274
Опубликована: Авг. 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.
Chemical Reviews,
Год журнала:
2019,
Номер
119(13), С. 8028 - 8086
Опубликована: Июнь 6, 2019
All-polymer
solar
cells
(all-PSCs)
consisting
of
polymer
donors
(PDs)
and
acceptors
(PAs)
have
drawn
tremendous
research
interest
in
recent
years.
It
is
due
to
not
only
their
tunable
optical,
electrochemical,
structural
properties,
but
also
many
superior
features
that
are
readily
available
conventional
polymer-fullerene
(fullerene-PSCs)
including
long-term
stability,
synthetic
accessibility,
excellent
film-forming
properties
suitable
for
large-scale
manufacturing.
Recent
breakthroughs
material
design
device
engineering
driven
the
power
conversion
efficiencies
(PCEs)
all-PSCs
exceeding
11%,
which
comparable
performance
fullerene-PSCs.
Furthermore,
outstanding
mechanical
durability
stretchability
been
reported
all-PSCs,
make
them
stand
out
from
other
small
molecule-based
PSCs
as
a
promising
supplier
wearable
electronic
devices.
This
review
provides
comprehensive
overview
important
work
pertinent
examples
deliberately
chosen.
First,
we
describe
key
components
enabled
progresses
rational
rules
efficient
PDs
PAs,
blend
morphology
control,
light
harvesting
engineering.
We
on
understanding
stability
under
various
external
conditions,
highlights
importance
future
implementation
commercialization.
Finally,
because
yet
achieved
full
potential
still
undergoing
rapid
development,
offer
our
views
current
challenges
prospects.
Angewandte Chemie International Edition,
Год журнала:
2020,
Номер
60(9), С. 4422 - 4433
Опубликована: Авг. 28, 2020
Abstract
All‐polymer
solar
cells
(all‐PSCs)
have
drawn
tremendous
research
interest
in
recent
years,
due
to
their
inherent
advantages
of
good
film
formation,
stable
morphology,
and
mechanical
flexibility.
The
most
representative
widely
used
n
‐CP
acceptor
was
the
naphthalene
diimide
based
D‐A
copolymer
N2200
before
2017,
power
conversion
efficiency
(PCE)
all‐PSCs
on
reached
over
8%
2016.
However,
low
absorption
coefficient
near‐infrared
(NIR)
region
limits
further
increase
its
PCE.
In
we
proposed
a
strategy
polymerizing
small‐molecule
acceptors
(SMAs)
construct
new‐generation
polymer
acceptors.
polymerized
SMAs
(PSMAs)
possess
band
gap
strong
NIR
region,
which
attracted
great
attention
drove
PCE
15%
recently.
this
Minireview
explain
design
strategies
molecular
structure
PSMAs
describe
progress.
Finally,
current
challenges
future
prospects
are
analyzed
discussed.
Nature Communications,
Год журнала:
2020,
Номер
11(1)
Опубликована: Июнь 8, 2020
Abstract
Combining
traditional
textiles
with
triboelectric
nanogenerators
(TENGs)
gives
birth
to
self-powered
electronic
(e-textiles).
However,
there
are
two
bottlenecks
in
their
widespread
application,
low
power
output
and
poor
sensing
capability.
Herein,
by
means
of
the
three-dimensional
five-directional
braided
(3DB)
structure,
a
TENG-based
e-textile
features
high
flexibility,
shape
adaptability,
structural
integrity,
cyclic
washability,
superior
mechanical
stability,
is
designed
for
sensing.
Due
spatial
frame-column
structure
formed
between
outer
yarn
inner
axial
yarn,
3DB-TENG
also
endowed
compression
resilience,
enhanced
output,
improved
pressure
sensitivity,
vibrational
energy
harvesting
ability,
which
can
miniature
wearable
electronics
respond
tiny
weight
variations.
Furthermore,
an
intelligent
shoe
identity
recognition
carpet
demonstrated
verify
its
performance.
This
study
hopes
provide
new
design
concept
high-performance
textile-based
TENGs
expand
application
scope
human-machine
interfacing.
Journal of the American Chemical Society,
Год журнала:
2021,
Номер
143(7), С. 2665 - 2670
Опубликована: Фев. 10, 2021
Despite
the
significant
progresses
made
in
all-polymer
solar
cells
(all-PSCs)
recently,
relatively
low
short-circuit
current
density
(Jsc)
and
large
energy
loss
are
still
quite
difficult
to
overcome
for
further
development.
To
address
these
challenges,
we
developed
a
new
class
of
narrow-bandgap
polymer
acceptors
incorporating
benzotriazole
(BTz)-core
fused-ring
segment,
named
PZT
series.
Compared
commonly
used
benzothiadiazole
(BT)-containing
PYT,
less
electron-deficient
BTz
renders
derivatives
with
significantly
red-shifted
optical
absorption
up-shifted
levels,
leading
simultaneously
improved
Jsc
open-circuit
voltage
resultant
all-PSCs.
More
importantly,
regioregular
(PZT-γ)
has
been
achieve
higher
regiospecificity
avoiding
formation
isomers
during
polymerization.
Benefiting
from
more
extended
absorption,
better
backbone
ordering,
optimal
blend
morphology
donor
component,
PZT-γ-based
all-PSCs
exhibit
record-high
power
conversion
efficiency
15.8%
greatly
enhanced
24.7
mA/cm2
0.51
eV.
