Journal of Physics D Applied Physics,
Год журнала:
2022,
Номер
55(49), С. 495503 - 495503
Опубликована: Окт. 10, 2022
Abstract
Non-fullerene
acceptors
have
recently
ignited
extensive
interest
in
organic
solar
cells
(OSCs)
because
of
their
higher
power
conversion
efficiency
(PCE)
than
fullerene
counterparts.
Though
the
effect
solvent
additive
1,
8-diiodooctane
(DIO)
has
been
studied
extensively
for
fullerene-based
acceptor
OSCs,
not
much
is
known
non-fullerene
OSCs.
In
our
work,
bulk-heterojunction
(BHJ)
OSCs
were
fabricated
by
blending
(PC
71
BM)
and
(ITIC
IEICO-4F)
with
low
bandgap
polymer
donor
(PTB7-Th).
Further,
effects
on
nanomorphology,
performance,
photostability
devices
investigated.
absence
DIO,
IEICO-4F
showed
PCE
PTB7-Th:
ITIC
PC
BM
BHJ-OSCs
due
to
absorption
near
infrared
along
high
J
sc
.
The
addition
DIO
increased
improved
miscibility
molecules,
donor/acceptor
interface
area,
phase
separation.
However,
adversely
affected
overall
device
performance
BHJ-OSCs.
Furthermore,
processed
less
photostable
exhibited
faster
degradation
photoacid
additive.
Energies,
Год журнала:
2024,
Номер
17(2), С. 333 - 333
Опубликована: Янв. 9, 2024
The
rapid
development
of
photovoltaic
technology
has
driven
the
search
for
novel
materials
that
can
improve
cost-effectiveness
and
efficiency
solar
cells.
Organic
semiconductors
offer
unique
optical
tunability
transparency,
allowing
customization
absorption
specific
spectra
like
near-infrared
radiation.
Through
molecular
engineering
electron
donors
acceptors,
these
be
optimized
targeted
selectivity.
This
adaptability
enables
efficient
energy-harvesting
devices
tailored
spectral
regions.
Consequently,
organic
present
a
promising
avenue
specialized
applications
such
as
semi-transparent
review
offers
detailed
summary
latest
developments
in
semiconductor
materials,
focusing
on
design
principles
synthesis
context
Optimization
architecture,
performance,
optoelectronic
properties
been
explored,
highlighting
their
potential
next-generation
energy
conversion.
Materials,
Год журнала:
2025,
Номер
18(1), С. 152 - 152
Опубликована: Янв. 2, 2025
In
this
study,
it
is
shown
that
an
efficient
organic
optocoupler
(OPC)
can
be
fabricated
using
commercially
available
and
solution-processable
semiconductors.
The
transmitter
a
single-active-layer
light-emitting
diode
(OLED)
made
from
well-known
polyparavinylene
derivative,
Super
Yellow.
receiver
(OLSD)
with
single
active
layer
consisting
of
mixture
the
polymer
donor
PTB7-Th
low-molecular-weight
acceptor
ITIC;
operates
without
applied
reverse
voltage.
OLED
OLSD
have
same
geometry
simple
structure
any
interlayers:
glass/ITO/PEDOT:PSS/(active
layer)/Ca/Al;
OPC
formed
by
which
adhere
tightly
to
each
other.
Despite
its
structure,
showed
current
transfer
ratio
0.13%,
good
linearity,
dynamic
performance:
three-decibel
cutoff
frequency
170
kHz
response
times
step
change
in
at
input
2
μs.
Compared
most
devices
similar
performance
parameters,
where
complex
structures
additional
interlayers
between
layers
electrodes
need
apply
voltage
receiver,
design
our
reduces
number
fabrication
steps
greatly
simplifies
device
process.
Advanced Optical Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 29, 2025
Abstract
Organic
photovoltaics
(OPVs)
and
organic
photodetectors
(OPDs),
which
use
conjugated
polymers
molecules
as
photoactive
materials,
hold
significant
promise
for
energy
harvesting
sensing
applications
due
to
their
customizable
optoelectronic
properties,
potential
mechanical
flexibility,
compatibility
with
low‐cost,
high‐throughput
manufacturing.
However,
OPV
OPD
research
date
has
typically
relied
on
device
fabrication
in
controlled
environments
(e.g.,
glove
boxes
filled
inert
gases)
vacuum‐deposited
(rather
than
solution‐processed)
electrodes,
limiting
scalability
increasing
manufacturing
complexity
cost.
This
review
explores
these
challenges
by
surveying
the
development
of
ambient‐air‐processed,
solution‐based
(APSB)
OPVs
OPDs,
not
only
solution‐processed
electrodes
but
are
also
entirely
fabricated
under
ambient
conditions.
Various
solution
processing
techniques,
performance
APSB
OPDs
comprehensively
examined,
offering
insights
future
advance
technologies
toward
ultra‐low‐cost
optoelectronics
harvesting.
Materials,
Год журнала:
2025,
Номер
18(8), С. 1841 - 1841
Опубликована: Апрель 17, 2025
This
study
addresses
the
development
and
optothermal
analysis
of
donor–acceptor
thin
layers,
including
materials
universally
used
in
organic
photovoltaic
cells.
article
presents
impact
temperature
on
optical
properties
morphology
films
made
from
commonly
solar
research
focused
two
donor
(PTB7
PTB7th)
non-fullerene
acceptors
(Y5
Y6),
individually
binary
combinations
with
PTB7
PTB7th.
employed
various
techniques,
UV–Vis
spectroscopy,
ellipsometry,
atomic
force
microscopy
(AFM),
to
analyze
changes
absorption,
refractive
index,
extinction
coefficient,
at
temperatures
ranging
30
°C
120
°C.
shows
reversible
thickness
absorption
temperature,
but
extent
these
differs
between
Y5
some
changes,
while
Y6
demonstrates
greater
instability
more
permanent
higher
temperatures.
The
enhanced
thermal
stability
mixtures
compared
single-component
was
observed.
Surfaces,
Год журнала:
2025,
Номер
8(2), С. 30 - 30
Опубликована: Май 1, 2025
In
this
study,
we
detailed
the
fabrication
and
characterization
of
photovoltaic
structures
based
on
PTB7:ICBA
(1:1,
wt.%)
bulk-heterojunction
optical
glass
substrates
by
spin-coating.
Some
samples
were
deposited
a
flat
substrate,
others
placed
patterned
substrate
obtained
nano-imprinting
lithography;
induced
effects
analyzed.
We
demonstrated
that
using
enhanced
maximum
output
power,
primarily
because
short-circuit
current
density
increased.
This
can
be
considered
direct
consequence
reduced
reflection
improved
absorption.
The
topological
parameters
evaluated
atomic
force
microscopy,
namely,
root
mean
square,
Skewness,
Kurtosis,
had
small
values
around
2
nm
1
nm,
respectively.
proves
mixture
conductive
polymer
fullerene
derivative
creates
thin
film
network
with
high
flatness
degree.
discussed
in
paper
fabricated
characterized
air;
admit
results
are
encouraging,
but
further
optimization
is
needed.
Energies,
Год журнала:
2023,
Номер
16(18), С. 6639 - 6639
Опубликована: Сен. 15, 2023
The
research
for
efficient
organic
materials
organized
in
bulk
heterojunction
(BHJ)
thin
films
photovoltaics
(OPVs)
has
shown
a
significant
breakthrough
the
past
decade.
Desired
structural
organization
can
be
attained
through
various
strategies.
In
this
regard,
current
review
highlights
tuning
of
alkyl
chains
introduced
on
molecular
structures
active
materials.
recent
wide
literature
is
classified
based
introduction
polymers
and
small
molecules
used
as
donor
acceptor
design
these
materials,
morphological
aspects
layers,
performances
related
photovoltaic
cells
are
detailed.
A
comprehensive
discussion
chemical
different
material
families
considered,
their
modification
by
natures,
reported
tabulated.
Journal of Applied Polymer Science,
Год журнала:
2024,
Номер
141(17)
Опубликована: Фев. 9, 2024
Abstract
Polymeric
semiconductors
offer
the
dual
advantages
of
lightness
and
flexibility,
facilitating
large‐scale
production
organic
electronic
devices.
In
present
research,
electron
donor
polymers
were
synthesized
incorporating
high
density
aromatic
units,
specifically
benzodithiophene
(BDT)
thiophene
(Th),
to
explore
their
efficacy
in
electronics.
This
systematic
study
focused
on
evaluating
impact
varying
side
chains
material
properties
these
polymers.
It
was
found
that
with
Th
exhibited
significantly
enhanced
thermal
stability,
approximately
100°C
higher
than
alkoxide
chain
counterparts.
For
polymer
PEHO‐BDT3HT,
a
bandgap
value
around
1.6
eV
obtained.
Furthermore,
binary
devices
developed
using
novel
copolymers,
among
which
PDT‐BDT3HT
demonstrated
superior
photovoltaic
performance,
achieving
power
conversion
efficiency
1.56%
without
any
optimization.
work
not
only
sheds
light
influence
variations
but
also
showcases
potential
BDT
Th‐based
copolymers
field
