Photonics,
Journal Year:
2024,
Volume and Issue:
11(11), P. 1030 - 1030
Published: Nov. 1, 2024
Semitransparent
organic
solar
cells
(ST-OSCs)
have
garnered
more
interest
and
stand
out
as
promising
candidates
for
next-generation
energy
harvesters
with
their
unique
advantages.
However,
challenges
remain
the
advancement
of
colorful
ST-OSCs,
such
enhancing
light
absorption
transmittance
without
considerable
power
conversion
efficiency
(PCE)
losses.
Herein,
an
optical
analysis
silver
(Ag)
electrodes
one-dimensional
photonic
crystals
(1DPCs)
was
conducted
by
simulations,
revealing
presence
Tamm
states
(OTSs)
at
interface
Ag/1DPCs.
Furthermore,
spectral
electrical
properties
were
fine-tuned
modulating
OTSs
through
theoretical
utilizing
PM6:Y6
active
layer.
The
structural
parameters
ST-OSCs
optimized,
including
Ag
layer
thickness,
central
wavelength
1DPCs,
first
WO3
pair
number
WO3/LiF.
optimization
resulted
in
successful
development
blue,
violet-blue,
red
ST-OSC
devices,
which
exhibited
peak
intensities
ranging
from
31.5%
to
37.9%
PCE
losses
between
1.5%
5.2%.
Notably,
blue
device
a
intensity
37.0%
15.24%,
only
loss
efficiency.
This
research
presents
innovative
approach
performance
achieving
balance
high
transparency
Journal of Materials Chemistry A,
Journal Year:
2024,
Volume and Issue:
12(27), P. 16251 - 16267
Published: Jan. 1, 2024
We
review
polythiophene
and
its
derivative
(PT)-based
polymer
donors
for
all-PSCs,
focusing
on
material
design,
morphology
optimization
strategies,
the
selection
design
of
acceptors
that
complement
their
properties.
Advanced Energy Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 26, 2024
Abstract
This
5th
annual
“
Emerging
PV
Report”
highlights
the
latest
advancements
in
performance
of
emerging
photovoltaic
(e‐PV)
devices
across
various
e‐PV
research
areas,
as
documented
peer‐reviewed
articles
published
since
August
2023.
Updated
graphs,
tables,
and
analyses
are
provided,
showcasing
several
key
parameters,
including
power
conversion
efficiency,
open‐circuit
voltage,
short‐circuit
current,
fill
factor,
light
utilization
stability
test
energy
yield.
These
parameters
presented
functions
bandgap
average
visible
transmittance
for
each
technology
application
contextualized
using
benchmarks
such
detailed
balance
efficiency
limit.
Advanced Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 4, 2025
Abstract
The
contradiction
between
high
transmittance
and
favorable
conductivity
poses
a
great
challenge
in
developing
effective
cathode
interlayer
(CIL)
materials
with
sufficient
thickness
tolerance,
which
hinders
the
further
advancement
of
organic
solar
cells
(OSCs).
Herein,
completely
new
class
alcohol
processable
polyimide‐ionene
hybrids
(PIIHs)
is
proposed
by
melding
pyromellitic
diimide
(PMD)
subunits
into
imidazolium‐based
ionenes
backbone
covalently.
These
PIIHs,
named
PMD‐DI
PMD‐PD,
boast
transparency,
suitable
energy
levels,
decent
conductivity.
A
higher
PMD
content
endows
PMD‐PD
improved
work
function
tunability,
electrical
properties,
crystallinity,
enabling
as
CIL
material
excellent
thickness‐insensitive
characteristics,
while
simultaneously
improving
device
stability
significantly.
Furthermore,
also
exhibits
good
compatibility
various
electrodes
active
layers,
offering
cell
efficiencies
up
to
19.91%
19.29%
Ag
Cu
cathodes,
respectively.
More
importantly,
application
can
improve
performance
semi‐transparent
OSCs
without
losing
transmittance,
thereby
drastically
enhancing
light
utilization
efficiency
4.04%
an
ultrathin,
low‐cost
cathode,
that
competes
leading
optical
modulation‐free
semitransparent
expensive
cathodes.
This
opens
pathway
realize
transparent
conductive
interlayers
strategic
molecular
design,
highly
efficient,
stable,
cost‐effective
for
diverse
applications.
Advanced Energy Materials,
Journal Year:
2024,
Volume and Issue:
14(42)
Published: Aug. 3, 2024
Abstract
In
series‐connected
tandem
organic
solar
cells
(TOSCs),
various
light‐harvesting
molecules
with
complementary
absorptions
are
explored
the
aim
of
collaboratively
utilizing
light
to
maximum
extent.
sharp
contrast
small
molecular
acceptors
that
possessing
almost
successively
tunable
bandgaps,
high‐performance
wide‐bandgap
(WBG)
polymer
donors
in
TOSCs
quite
scarce,
only
PM6
(optical
E
g
opt
=
1.80
eV)
and
D18
(
1.98
being
widely
used.
Herein,
develop
WBG
large
open‐circuit
voltages
V
OC
)
high‐energy
photon
absorption,
two
pyrazinyl
donors,
PPy1
PPy2,
synthesized
branched
2‐butyloctyl
n‐dodecyl
chains
on
polymeric
backbones,
respectively,
demonstrating
downshifted
highest
occupied
orbital
energy
levels
≈−5.60
eV
thus
afford
over
2.0
eV.
Consequently,
when
blending
a
acceptor
F‐ThCl,
PPy2:F‐ThCl‐based
devices
exhibit
higher
power
conversion
efficiency
(PCE)
14.50%
fill
factor
77.66%.
its
1.07
V,
based
PPy2
further
fabricated
an
impressive
PCE
19.35%
by
using
narrow
bandgap
blend
PM6:CH1007:F‐2F
as
rear
cell.
This
work
demonstrates
great
potential
pyrazine
units
constructing
for
achieving
record‐breaking
TOSCs.
Advanced Science,
Journal Year:
2024,
Volume and Issue:
11(31)
Published: June 17, 2024
Abstract
Lightweight
and
semi‐transparent
organic
solar
cells
(ST‐OSCs)
offer
bright
promise
for
applications
such
as
building
integrated
photovoltaics.
Diluting
donor
content
in
bulk‐heterojunction
active
layers
to
allow
greater
visible
light
transmittance
(AVT)
effectively
enhances
device
transparency,
yet
the
ineluctable
compromise
of
donor‐phase
continuity
is
challenging
efficient
charge
transport.
Herein,
a
trace
amount
n
‐type
N
‐DMBI
dopant
incorporated,
which
facilitates
donor:acceptor
(D:A)
de‐mixing
by
strengthening
both
acceptor
polarity
D/A
crystallization.
With
diminution
component
inter‐mixing,
limited
number
donors
increasingly
self‐aggregate
establish
more
continuous
phases.
For
benchmark
PM6:Y6‐based
ST‐OSCs,
when
reduced
from
regular
45
optimal
30
wt.%,
AVT
remarkably
raised
than
quarter,
accompanied
marginal
drop
power
conversion
efficiency
13.89%
13.03%.
This
study
reveals
that
decreasing
<30
wt%,
excitons
induced
Förster
resonance
energy
transfer
are
prone
severe
radiative
recombination.
nonetheless
mitigated
inclusion
within
phase
providing
extra
offset
prolonging
state
lifetime
assist
exciton
dissociation.
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: May 19, 2025
Abstract
Cathode
interface
engineering
is
a
critical
strategy
for
enhancing
power
conversion
efficiency
and
device
stability
in
semitransparent
organic
photovoltaics
(STOPVs).
Herein,
novel
approach
of
using
trithiocyanuric
acid
trisodium
salt
(TATS)
proposed
to
strengthen
the
chemical
interactions
between
cathode
interlayer
(CIL)
ultrathin
silver
(Ag)
electrode.
The
introduction
TATS
not
only
improves
conductivity
CIL,
but
also
promotes
growth
Ag
electrodes
stabilizes
morphology
films,
thus
simultaneously
improving
light
utilization
(LUE)
photostability
STOPVs.
LUE
STOPVs
improved
from
3.62%
3.98%
after
modification
with
TATS,
further
enhanced
4.30%
by
35
nm
molybdenum
oxide
as
optical
structure.
In
addition,
significantly
retention
rate
initial
53%
85%,
200
h
continuous
illumination.
This
study
offers
new
perspective
on
achieving
high‐efficiency
through
CIL
strategy.
