Applied Physics Letters,
Год журнала:
2024,
Номер
125(14)
Опубликована: Сен. 30, 2024
We
developed
a
color-modulated
light-emitting
device
(LED)
by
the
integration
of
p-GaN/n-ZnO
heterojunction
with
reliable
resistive
random
access
memory
(RRAM)
and
demonstrated
multi-function
integrated
adjustable
electroluminescence
(EL)
color
modulating
injection
current
according
to
multiple
resistance
states.
As
critical
foundation
an
device,
operation
was
achieved
introducing
AlOx
layer
into
HfOx
RRAM
as
adjustment
switching
endurance.
Eventually,
EL
LED
effectively
regulated
compliance
RRAM.
Thanks
high
uniformity,
this
modulated
may
be
promising
candidate
for
application
low-cost
high-density
displays
without
complicated
structures
techniques,
it
can
provide
feasible
approach
realization
multilevel
state
feedback
from
varied
in
future.
Nature Communications,
Год журнала:
2024,
Номер
15(1)
Опубликована: Апрель 16, 2024
Abstract
Although
asymmetric
molecular
design
has
been
widely
demonstrated
effective
for
organic
photovoltaics
(OPVs),
the
correlation
between
geometry
and
their
optoelectronic
properties
is
still
unclear.
To
access
this
issue,
we
have
designed
synthesized
several
symmetric-asymmetric
non-fullerene
acceptors
(NFAs)
pairs
with
identical
physical
properties.
Interestingly,
found
that
NFAs
universally
exhibited
increased
open-circuit
voltage
compared
to
symmetric
counterparts,
due
reduced
non-radiative
charge
recombination.
From
our
molecular-dynamic
simulations,
NFA
naturally
exhibits
more
diverse
interaction
patterns
at
donor
(D):acceptor
(A)
interface
as
ones,
well
higher
D:A
interfacial
charge-transfer
state
energy.
Moreover,
it
observed
structure
can
effectively
suppress
triplet
formation.
These
advantages
enable
a
best
efficiency
of
18.80%,
which
one
champion
results
among
binary
OPVs.
Therefore,
work
unambiguously
demonstrates
unique
advantage
geometry,
unveils
underlying
mechanism,
highlights
manipulation
an
important
consideration
future
design.
Advanced Materials,
Год журнала:
2024,
Номер
36(18)
Опубликована: Янв. 25, 2024
Abstract
Semitransparent
organic
photovoltaics
(ST‐OPVs)
offer
promising
prospects
for
application
in
building‐integrated
photovoltaic
systems
and
greenhouses,
but
further
improvement
of
their
performance
faces
a
delicate
trade‐off
between
the
two
competing
indexes
power
conversion
efficiency
(PCE)
average
visible
transmittance
(AVT).
Herein,
authors
take
advantage
coupling
plasmonics
with
optical
design
ST‐OPVs
to
enhance
near‐infrared
absorption
hence
simultaneously
improve
transparency
maximum
extent.
By
integrating
core–bishell
PdCu@Au@SiO
2
nanotripods
that
act
as
optically
isotropic
Lambertian
sources
near‐infrared‐customized
localized
surface
plasmon
resonance
an
optimal
ternary
PM6:BTP‐eC9:L8‐BO‐based
ST‐OPV,
it
is
shown
interplay
multilayer
layer,
consisting
ZnS(130
nm)/Na
3
AlF
6
(60
nm)/WO
(100
nm)/LaF
(50
nm)
identified
from
high‐throughput
screening,
leads
record‐high
PCE
16.14%
(certified
15.90%)
along
excellent
AVT
33.02%.
The
strong
enhancement
light
utilization
by
≈50%
compared
counterpart
device
without
engineering
provides
encouraging
universal
pathway
promoting
breakthroughs
meticulous
design.
Journal of the American Chemical Society,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 2, 2024
Constructing
fibril
morphology
has
been
believed
to
be
an
effective
method
of
achieving
efficient
exciton
dissociation
and
charge
transport
in
organic
solar
cells
(OSCs).
Despite
emerging
endeavors
on
the
fibrillization
semiconductors
via
chemical
structural
design
or
physical
manipulation,
tuning
geometry,
i.e.,
width
length,
for
tailored
optoelectronic
properties
remains
studied
depth.
In
this
work,
a
series
alkoxythiophene
additives
featuring
varied
alkyl
side
chains
connected
thiophene
are
designed
modulate
growth
aggregates
cutting-edge
polymer
donors
PM6
D18.
Molecular
dynamics
simulations
morphological
characterizations
reveal
that
these
preferentially
locate
near
entangle
with
donors,
which
enhance
conjugated
backbone
stacking
form
nanofibrils
expanding
from
12.6
21.8
nm
length
increasing
98.3
232.7
nm.
This
nanofibril
structure
is
feasible
acquire
simultaneously.
By
integrating
L8-BO
as
donor
acceptor
layers
pseudo-bulk
heterojunction
(p-BHJ)
OSCs
layer-by-layer
deposition,
improvement
power
conversion
efficiency
(PCE)
18.7%
19.8%
observed,
contributed
by
enhanced
light
absorption,
transport,
reduced
recombination.
The
versatility
also
verified
D18:L8-BO
OSCs,
PCE
19.3%
20.1%,
among
highest
values
reported
OSCs.
Nature Communications,
Год журнала:
2025,
Номер
16(1)
Опубликована: Янв. 11, 2025
The
artistic
and
scientific
perspectives
of
the
translucent
color
organic
solar
cells
(OSCs),
made
with
emerging
narrowband
nonfullerene
acceptors
are
explored.
OSCs,
comprising
a
Fabry–Pérot
microcavity
optical
coupling
layer,
have
power
conversion
efficiency
>15%
maximum
transparency
>20%
for
three
primary
colors.
performance−color
relationship
OSCs
is
analyzed
using
combination
high-throughput
computing
experimental
optimization,
allowing
light
desired
to
pass
through,
while
absorbing
enough
generate
electricity.
Replication
Piet
Mondrian's
artwork
"Composition
C
(1920)"
demonstrated
10
×
cm2-sized
OSC
module
wide
palette
colors
hues.
outcome
work
offers
an
opportunity
function
as
both
esthetic
art
generating
windowpanes
use
in
our
homes,
offices,
even
greenhouses.
realization
competitive
efficiency,
visible
hue
remains
critical
challenge.
Here,
authors
fabricate
layer
applications
science
art.
Advanced Materials,
Год журнала:
2023,
Номер
35(46)
Опубликована: Июль 24, 2023
Photovoltaic
windows
with
easy
installation
for
the
power
supply
of
household
appliances
have
long
been
a
desire
energy
researchers.
However,
due
to
lack
top
electrodes
that
offer
both
high
transparency
and
low
sheet
resistance,
development
high-transparency
photovoltaic
indoor
lighting
scenarios
has
lagged
significantly
behind
where
privacy
issues
are
involved.
Addressing
this
issue,
work
develops
solution-processable
transparent
electrode
using
sandwich
structure
silver
nanowires,
realizing
in
semi-transparent
organic
solar
cells.
The
wettability
conducting
properties
improved
by
modified
hole-transport
layer
named
HP.
cell
exhibits
good
see-through
at
average
visible
transmittance
50.8%,
conversion
efficiency
7.34%,
light
utilization
3.73%,
which
is
highest
without
optical
modulations.
Moreover,
flexible
devices
based
on
above-mentioned
architecture
also
show
excellent
mechanical
tolerance
compared
Ag
counterparts,
retains
94.5%
their
original
after
1500
bending
cycles.
This
provides
valuable
approach
fabricating
solution-processed
cells,
essential
future
applications
building
integrated
photovoltaics.
ACS Energy Letters,
Год журнала:
2024,
Номер
9(5), С. 2420 - 2427
Опубликована: Апрель 28, 2024
Achieving
finely
tuned
phase
separation
and
vertical
distribution
within
the
photoactive
layer
is
crucial
for
enhancing
charge
transport,
thereby
significantly
influencing
photovoltaic
performance
of
organic
solar
cells
(OSCs).
In
this
study,
a
nonfullerene
acceptor,
denoted
as
HLG,
designed
synthesized
by
introducing
hydrophobic
1,2,4,5-tetrafluoro-3-((2-ethylhexyl)oxy)benzene
side
chains.
The
fluorine-substituted
functional
groups
endow
HLG
with
higher
surface
energy,
rendering
it
suitable
utilization
morphological
regulator
in
PB2:BTP-eC9
blends.
morphology
study
reveals
that
plays
an
important
role
formation
favorable
distribution.
Benefiting
from
desirable
morphology,
PB2:HLG:BTP-eC9-based
OSC
demonstrates
impressive
power
conversion
efficiency
(PCE)
19.5%.
This
introduces
effective
approach
combines
molecular
design
ternary
strategy
to
optimize
active
simultaneously,
leading
significant
improvements
PCE
OSCs.
Nature Communications,
Год журнала:
2024,
Номер
15(1)
Опубликована: Фев. 13, 2024
Abstract
Linearly
polarized
organic
light-emitting
diodes
have
become
appealing
functional
expansions
of
polarization
optics
and
optoelectronic
applications.
However,
the
current
linearly
exhibit
low
performance,
cost-prohibitive
process,
monochromatic
modulation
limit.
Herein,
we
develop
a
switchable
dual-color
orthogonal
linear
mode
in
diode,
based
on
dielectric/metal
nanograting-waveguide
hybrid-microcavity
using
cost-efficient
laser
interference
lithography
vacuum
thermal
evaporation.
This
acquired
diode
presents
transverse-electric/transverse-magnetic
extinction
ratio
15.8
dB
with
divergence
angle
±30°,
an
external
quantum
efficiency
2.25%,
colors
from
green
to
sky-blue.
rasterization
dielectric/metal-cathode
further
satisfies
momentum
matching
between
waveguide
air
mode,
diffracting
both
targeted
sky-blue
transverse-electric
off-confined
transverse-magnetic
mode.
Therefore,
polarization-encrypted
colorful
optical
image
is
proposed,
representing
significant
step
toward
low-cost
high-performance
electrically-inspired
encryption
for
color
images.
The
aim
was
to
easily
achieve
clearer
structural
colors
than
ever
before
by
layering
nanoparticles
using
the
Langmuir-Blodgett
method.
outermost
surface
of
titanium
dioxide
(TiO2)
particles
with
a
particle
diameter
15
nm
modified
long-chain
fatty
acids
synthesize
organo-modified
TiO2.
TiO2
spread
on
air/water
interface,
and
obtained
single-particle
layer
laminated
different
numbers
layers
obtain
stepped
multiparticle
thicknesses
400-800
nm.
exhibited
clear
color
gradation.
Compared
previous
studies
involving
use
triiron
tetroxide
nanodiamonds
5
nm,
without
need
for
pretreatment.
formed
highly
ordered
structure
demonstrating
11th-order
reflection
in
out-of-plane
X-ray
diffraction.
Additionally,
compared
other
systems,
modification
rate
high
in-plane
packing
chains
advanced.
However,
hue
changed
when
samples
were
annealed
at
50
°C
h.
A
method
subsequently
proposed
introduce
hydrogen-bonding
functional
groups
into
suppress
this
behavior.
pursuit
ease
stability
expression
will
lead
future
applications
cosmetic
science.
