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
Science Advances,
Journal Year:
2024,
Volume and Issue:
10(44)
Published: Nov. 1, 2024
Highly
efficient
bifacial
organic
solar
cells
(OSCs)
have
not
been
reported
due
to
limited
thickness
of
the
active
layer
in
conventional
configurations,
allowing
for
harvesting
front
sunlight
and
albedo
light.
Here,
OSCs
are
with
efficiency
higher
than
monofacial
counterparts.
The
incorporation
pyramid-based
asymmetrical
optical
transmission
(AOT)
array
a
transparent
silver
electrode
suppresses
escaping
without
sacrificing
Parasitic
absorption
induced
by
excitation
surface
plasmons
an
AOT
is
further
reduced
doping
emitter
electron
transport
capping
high
dielectric
constant
film
silver.
rear
achieves
transmittance
7%
86%.
At
0.2,
synergistic
effect
minimized
loss
endow
power
conversion
20.4%.
This
work
paves
way
utilization
light
OSCs.
Advanced Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 16, 2025
Abstract
The
trade‐off
between
average
visible
transmittance
(AVT)
and
power
conversion
efficiency
(PCE),
governed
by
the
molecular
stacking
of
donor
acceptor
materials
in
semitransparent
organic
solar
cells
(ST‐OSCs),
significantly
constrains
improvements
light
utilization
(LUE).
Here,
simultaneous
enhancement
AVT
PCE
is
achieved
meticulously
designing
host‐guest
active
layers
to
fine‐tune
stacking.
A
systematic
investigation
various
host
guest
material
combinations
reveals
that
(D18)
with
more
electron‐deficient
hydrogen
atoms
tends
form
C─H···O
interactions
(BTO‐BO)
features
electron‐rich
oxygen
atoms.
Hydrogen
bonding
D18
BTO‐BO
facilitate
transition
from
mixed
J
‐type
H
modes
predominant
during
crystallization,
reducing
absorption
enhancing
hole
transport.
Additionally,
can
act
as
a
nucleation
agent
for
BTP‐eC9
increase
crystallinity
coefficient
layer,
thereby,
near‐infrared
absorption.
resultant
toluene‐processed
ST‐OSCs
optical
modulation
exhibit
improvement
AVT,
delivering
record
LUEs
6.02%.
Notably,
this
layer
demonstrates
exceptional
compatibility
flexible
devices
promising
scalability
greenhouse
photovoltaic
applications.
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 Energy Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 24, 2024
Abstract
Although
encouraging
progress
in
spin‐coated
small‐area
organic
solar
cells
(OSCs),
reducing
efficiency
loss
caused
by
differences
film
uniformity
and
morphology
when
up‐scaled
to
large‐area
modules
through
meniscus‐guided
coating
is
an
important
but
unsolved
issue.
In
this
work,
in‐depth
research
conducted
on
the
influence
of
both
liquid
solid
additives
active
layer
blade‐coated
PM6:L8‐BO
binary
system.
The
study
reveals
that
high
boiling
point
like
1,8‐diiodooctane
(DIO)
used
blade‐coating
not
only
delay
volatilization
solvent
also
trigger
Marangoni
flow
same
direction
as
capillary
flow,
causing
excessive
aggregation
acceptors,
therefore
destroying
device
performance.
On
contrary,
additive
2‐Iododiphenyl
ether
(IDPE),
which
first
reported
can
preserve
mechanism
for
improving
performance
while
effectively
suppressing
acceptors
during
film‐forming
process
from
halogen‐free
toluene,
resulting
highly
homogeneous
films.
Consequently,
with
impressive
15.34%
a
total
module
area
18.90
cm
2
via
based
are
achieved.
This
provides
deep
understanding
effect
perspective
fluid
mechanisms
gives
pathway
development
green
printed
high‐efficiency
OSCs.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 24, 2024
Abstract
Reducing
the
content
of
light‐absorbing
material
in
active
layer
semitransparent
organic
solar
cells
(ST‐OSCs)
enhances
average
visible
transmittance
(AVT)
but
sacrifices
power
conversion
efficiency
(PCE).
This
dilemma
is
a
key
challenge
to
ST‐OSCs.
Here
trityl
tetrakis(pentafluorophenyl)
borate
(TrTPFB)‐doping
polymer
donor
at
suboptimal
donor:acceptor
(D:A)
ratio
reported
as
an
approach
enhance
light
utilization
(LUE)
via
boosting
fill
factor
(FF).
The
D:A
results
not
only
less
efficient
hole
transporting
network
also
narrower
charge
photogeneration
profile.
latter
widens
flat‐band
region.
These
deteriorations
make
diffusion
crucial
for
compensating
collection.
TrTPFB‐doping
mainly
helps
elongate
length
alleviate
severe
bimolecular
recombination.
As
result,
FF
boosts
from
65.1%
72.2%
film
AVT
increased
device,
which
comparable
that
bulk
heterojunction
device
with
optimal
ratio.
best
LUE
3.51%
achieved
TrTPFB‐doped
ST‐OSCs
based
on
ternary
combination;
moreover,
5.18%
predicted
after
proper
optical
optimization.
ST‐OSC
showcases
greenhouse
rooftop,
outperforms
glass
one
wheat
plant.
Advanced Energy Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 5, 2024
Abstract
Integrating
semitransparent
organic
photovoltaics
(ST‐OPVs)
into
building
structures
is
a
promising
technology
that
serves
aesthetic
purposes
while
retaining
window
functionality,
and
it
also
facilitates
solar
energy
harvesting
heat
insulation.
However,
balancing
power
conversion
efficiency
(PCE),
visible
light
transmittance
(VLT),
infrared
radiation
rejection
(IRR),
color
rendering
index
(CRI)
for
applications
remains
significant
challenge.
In
this
study,
ST‐OPVs
are
developed
feature
innovative
near‐infrared‐absorbing
materials.
These
devices
further
coupled
with
an
optical
layer
optimized
through
high‐throughput
modeling
to
fine‐tune
enhance
the
different
properties
of
ST‐OPVs.
Specifically,
achieved
VLT
over
30%,
PCE
12.5%,
IRR
90%,
CRI
80.
Furthermore,
higher
14%
95%
can
be
achieved,
demonstrating
tunability
these
photovoltaic
properties.
figures
highlight
exceptional
performance
specialized
applications,
their
dual
function
generating
electricity
saving.
Additionally,
simulations
show
replacing
traditional
insulation
films
reduce
annual
demand
by
up
60%,
using
Hong
Kong
as
example,
underscoring
potential
in
sustainable
building‐integrated
(BIPV)
applications.