Energy & Environmental Science,
Год журнала:
2024,
Номер
17(8), С. 2825 - 2836
Опубликована: Янв. 1, 2024
We
propose
a
collaborative
regulation
strategy
of
donor
and
acceptor
analogues
to
develop
multi-functional
ST-OSCs
with
highly
comprehensive
performance.
Advanced Materials,
Год журнала:
2024,
Номер
36(25)
Опубликована: Март 21, 2024
Interfacial
layers
(ILs)
are
prerequisites
to
form
the
selective
charge
transport
for
high-performance
organic
photovoltaics
(OPVs)
but
mostly
result
in
considerable
parasitic
absorption
loss.
Trimming
ILs
down
a
mono-molecular
level
via
self-assembled
monolayer
is
an
effective
strategy
mitigate
However,
such
suffers
from
inferior
electrical
contact
with
low
surface
coverage
on
rough
surfaces
and
poor
producibility.
To
address
these
issues,
here,
interlayer
(SAI)
developed,
which
involves
thin
layer
of
2-6
nm
full
substrate
both
covalent
van
der
Waals
bonds
by
using
molecule
2-(9H-carbazol-9-yl)
(2PACz).
Via
facile
spin
coating
without
further
rinsing
annealing
process,
it
not
only
optimizes
optical
properties
OPVs,
enables
world-record
efficiency
20.17%
(19.79%
certified)
also
simplifies
tedious
processing
procedure.
Moreover,
SAI
especially
useful
improving
absorbing
selectivity
semi-transparent
record
light
utilization
5.34%.
This
work
provides
optimize
OPVs
solar
window
applications.
Advanced Materials,
Год журнала:
2023,
Номер
35(21)
Опубликована: Март 3, 2023
The
ternary
blend
is
demonstrated
as
an
effective
strategy
to
promote
the
device
performance
of
organic
photovoltaics
(OPVs)
due
dilution
effect.
While
compromise
between
charge
generation
and
recombination
remains
a
challenge.
Here,
mixed
diluent
for
further
improving
efficiency
OPV
proposed.
Specifically,
high-performance
system
with
polymer
donor,
i.e.,
PM6,
nonfullerene
acceptor
(NFA),
BTP-eC9,
diluted
by
diluents,
which
involve
high
bandgap
NFA
BTP-S17
low
BTP-S16
(similar
that
BTP-eC9).
better
miscibility
BTP-eC9
can
dramatically
enhance
open-circuit
voltage
(VOC
),
while
maximizes
or
short-circuit
current
density
(JSC
).
interplay
BTP-17
enables
recombination,
thus
leading
19.76%
(certified
19.41%),
best
among
single-junction
OPVs.
Further
analysis
on
carrier
dynamics
validates
efficacy
diluents
balancing
be
attributed
more
diverse
energetic
landscapes
improved
morphology.
Therefore,
this
work
provides
commercialization.
Nano-Micro Letters,
Год журнала:
2023,
Номер
15(1)
Опубликована: Апрель 10, 2023
Morphology
is
of
great
significance
to
the
performance
organic
solar
cells
(OSCs),
since
appropriate
morphology
could
not
only
promote
exciton
dissociation,
but
also
reduce
charge
recombination.
In
this
work,
we
have
developed
a
solid
additive-assisted
layer-by-layer
(SAA-LBL)
processing
fabricate
high-efficiency
OSCs.
By
adding
additive
fatty
acid
(FA)
into
polymer
donor
PM6
solution,
controllable
pre-phase
separation
forms
between
and
FA.
This
intermixed
facilitates
diffusion
acceptor
Y6
during
LBL
processing,
due
good
miscibility
fast-solvation
FA
with
chloroform
solution
dripping.
Interestingly,
results
in
desired
refined
phase-separated
domain
vertical
phase-separation
structure
better
balance
transport
/collection
dissociation.
Consequently,
binary
single
junction
OSCs
based
on
PM6:Y6
blend
reach
champion
power
conversion
efficiency
(PCE)
18.16%
SAA-LBL
which
can
be
generally
applicable
diverse
systems,
e.g.,
PM6:L8-BO-based
devices
thick-film
devices.
The
efficacy
confirmed
PM6:L8-BO,
where
record
PCEs
19.02%
16.44%
are
realized
for
100
250
nm
active
layers,
respectively.
work
provides
simple
effective
way
control
demonstrates
promising
methodology
boosting
industrial
manufacturing
Advanced Energy Materials,
Год журнала:
2022,
Номер
13(1)
Опубликована: Дек. 9, 2022
Abstract
Following
the
2nd
release
of
“Emerging
PV
reports,”
best
achievements
in
performance
emerging
photovoltaic
devices
diverse
research
subjects
are
summarized,
as
reported
peer‐reviewed
articles
academic
journals
since
August
2021.
Updated
graphs,
tables,
and
analyses
provided
with
several
parameters,
e.g.,
power
conversion
efficiency,
open‐circuit
voltage,
short‐circuit
current
density,
fill
factor,
light
utilization
stability
test
energy
yield.
These
parameters
presented
a
function
bandgap
average
visible
transmittance
for
each
technology
application,
put
into
perspective
using,
detailed
balance
efficiency
limit.
The
3rd
installment
reports”
extends
scope
toward
triple
junction
solar
cells.
Advanced Materials,
Год журнала:
2022,
Номер
34(50)
Опубликована: Сен. 25, 2022
Intrinsically
stretchable
organic
solar
cells
(IS-OSCs),
consisting
of
all
layers,
are
attracting
significant
attention
as
a
future
power
source
for
wearable
electronics.
However,
most
the
efficient
active
layers
OSCs
mechanically
brittle
due
to
their
rigid
molecular
structures
designed
high
electrical
and
optical
properties.
Here,
series
new
polymer
donors
(PD
s,
PhAmX)
featuring
phenyl
amide
(N1
,N3
-bis((5-bromothiophen-2-yl)methyl)isophthalamide,
PhAm)-based
flexible
spacer
(FS)
inducing
hydrogen-bonding
(H-bonding)
interactions
is
developed.
These
PD
s
enable
IS-OSCs
with
conversion
efficiency
(PCE)
12.73%
excellent
stretchability
(PCE
retention
>80%
initial
value
at
32%
strain),
representing
best
performances
among
reported
date.
The
incorporation
PhAm-based
FS
enhances
ordering
well
Y7
acceptor,
enhancing
mechanical
properties
simultaneously.
It
also
found
that
in
OSCs,
PhAm5:Y7
blend
achieves
much
higher
PCE
17.5%
compared
reference
PM6:Y7
blend.
impact
PhAm-FS
linker
on
photovoltaic
thoroughly
investigated.
Energy & Environmental Science,
Год журнала:
2023,
Номер
16(5), С. 2284 - 2294
Опубликована: Янв. 1, 2023
Ultra-thin
OPVs
with
record
efficiency,
the
highest
power
density
and
tunable
colors
are
demonstrated.
The
was
fabricated
on
a
1.3
micro-meter
substrate,
demonstrated
efficiency
of
17.32%
an
excellent
39.72
W
g
−1
.
Advanced Materials,
Год журнала:
2023,
Номер
35(36)
Опубликована: Май 22, 2023
Abstract
The
simultaneous
improvement
of
power
conversion
efficiency
(PCE)
and
thermal
stability
is
a
critical
scientific
challenge
in
advancing
the
commercial
applications
polymer
solar
cells.
To
address
this
challenge,
dumbbell‐shaped
dimeric
acceptor,
DT19,
successfully
designed
synthesized.
It
incorporated
as
third
component
into
PM1:BTP‐eC9
system.
This
ternary
strategy
demonstrates
synergistic
enhancement
PCE
host
binary
In
particular,
PM1:BTP‐eC9:DT19
system
maintains
over
90%
even
after
heating
at
120
°C
for
200
h.
Additionally,
dimer‐doping
exhibits
excellent
generality
other
four
Y‐series
systems
outperforms
containing
alloy‐like
acceptors
terms
stability.
because
with
its
hinge‐like
structure,
can
form
semi‐alloy
acceptor
leading
to
strong
interchain
entanglement
donor,
thus
overcoming
phase
separation
excessive
aggregation
under
stress.
new
type
material,
which
synergistically
enhance
device
active
layers,
presents
promising
application
prospects.
Niobium-carbide
(Nb2
C)
MXene
as
a
new
2D
material
has
shown
great
potential
for
application
in
photovoltaics
due
to
its
excellent
electrical
conductivity,
large
surface
area,
and
superior
transmittance.
In
this
work,
novel
solution-processable
poly(3,4-ethylenedioxythiophene):
poly(styrenesulfonate)
(PEDOT:PSS)-Nb2
C
hybrid
hole
transport
layer
(HTL)
is
developed
enhance
the
device
performance
of
organic
solar
cells
(OSCs).
By
optimizing
doping
ratio
Nb2
PEDOT:PSS,
best
power
convention
efficiency
(PCE)
19.33%
can
be
achieved
OSCs
based
on
ternary
active
PM6:BTP-eC9:L8-BO,
which
so
far
highest
value
among
those
single
junction
using
materials.
It
found
that
addition
facilitate
phase
separation
PEDOT
PSS
segments,
thus
improving
conductivity
work
function
PEDOT:PSS.
The
significantly
enhanced
attributed
higher
mobility
charge
extraction
capability,
well
lower
interface
recombination
probabilities
generated
by
HTL.
Additionally,
versatility
HTL
improve
different
nonfullerene
acceptors
demonstrated.
These
results
indicate
promising
development
high-performance
OSCs.
Energy & Environmental Science,
Год журнала:
2023,
Номер
16(8), С. 3543 - 3551
Опубликована: Янв. 1, 2023
Qx-
p
-4Cl
with
both
a
para
-fluorinated
central
unit
and
chlorinated
end
groups
exhibits
enhanced
molecular
packing,
facilitating
efficient
charge
transport,
thus
achieving
power
conversion
efficiency
(PCE)
of
18.78%
when
blended
donor
PM6.