Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(29)
Published: March 7, 2024
Abstract
Single‐layer
carbon
nitride
(SLCN)
is
introduced
as
a
metal‐free
organic
electron
transport
material
(ETL)
for
solar
cells,
delivering
performance
comparable
to
that
of
the
benchmark
nanocrystalline
ZnO.
SLCN
produced
in
form
stable
aqueous
inks
and
can
serve
an
efficient
layer
three
different
types
active
layers,
showing
high
stability
photodegradation.
A
lower
conductivity
films
compared
ZnO
counter‐balanced
by
their
higher
transparency
light
scattering
losses.
The
ETL
provides
unique
opportunity
tune
work
function
from
ca.
−4.1
−4.6
eV
varying
annealing
temperature
due
partial
thermal
oxidation
film.
PL
band
position
follows
oxidation‐induced
changes
allowing
properties
be
used
predict
PV
efficiency.
2D
structure
coupled
with
structural
compositional
variability,
tunability
show
promise
emerging
devices.
Energy Advances,
Journal Year:
2023,
Volume and Issue:
2(8), P. 1215 - 1224
Published: Jan. 1, 2023
The
effect
of
alkyl
side
chains
on
the
electron
transport
properties
non-fullerene
acceptors
is
assessed,
concluding
that
main
influence
crystal
packing
rather
than
dynamic
disorder.
Polymers,
Journal Year:
2023,
Volume and Issue:
15(22), P. 4443 - 4443
Published: Nov. 17, 2023
Huge
energy
consumption
and
running
out
of
fossil
fuels
has
led
to
the
advancement
renewable
sources
power,
including
solar,
wind,
tide.
Among
them,
solar
cells
have
been
well
developed
with
significant
achievement
silicon
panels,
which
are
popularly
used
as
windows,
rooftops,
public
lights,
etc.
In
order
advance
application
cells,
a
flexible
type
is
highly
required,
such
layered
casting
(LCSCs).
Organic
(OSCs),
perovskite
(PSCs),
or
dye-sensitive
(DSSCs)
promising
LCSCs
for
broadening
many
types
surfaces.
would
be
cost-effective,
enable
large-scale
production,
efficient,
stable.
Each
layer
an
LCSC
important
building
complete
structure
cell.
Within
cell
(active
material,
charge
carrier
transport
layer,
electrodes),
hole
layers
(HTLs)
play
role
in
transporting
holes
anode.
Recently,
diverse
HTLs
from
inorganic,
organic,
organometallic
materials
emerged
great
impact
on
stability,
lifetime,
performance
OSC,
PSC,
DSSC
devices.
This
review
summarizes
recent
advances
development
cells.
Perspectives
challenges
HTL
improvement
also
highlighted.
Bulletin of the Chemical Society of Japan,
Journal Year:
2025,
Volume and Issue:
98(1)
Published: Jan. 1, 2025
Abstract
The
singlet
exciton
(S1)
lifetime
of
nonfullerene
acceptor
(NFA)
films
is
a
crucial
factor
influencing
their
photovoltaic
performances,
as
longer
S1
increases
the
diffusion
length.
We
previously
reported
that
NFA
with
two-dimensionally
π-extended
thienoazacoronene
(TAC)
central
core,
S-TACIC,
exhibits
an
exceptionally
long
in
film.
In
this
study,
we
examined
effects
replacing
thiophene
selenophene
on
photophysical
and
properties.
Fluorescence
decay
measurements
showed
selenophene-substituted
TAC-based
(Se-TACIC)
solution
(500
ps)
but
significantly
shorter
film
(<200
compared
to
S-TACIC
(220
ps
1,590
film).
When
blended
polymer
donor
PBDB-T,
Se-TACIC-based
organic
(OPV)
device
exhibited
lower
power
conversion
efficiency
(5.58%)
than
S-TACIC-based
one
(9.92%),
due
inferior
parameters
OPV
device.
Advanced Optical Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 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.
Advanced Electronic Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 24, 2025
Abstract
Organic
photovoltaics
show
great
potential
for
wireless
bioelectronics,
offering
the
ability
to
convert
visible‐to‐near‐infrared
light
into
electrical
energy.
This
study
investigates
stability
and
biocompatibility
of
PM6:Y6
bulk
heterojunction
layers,
chosen
their
efficient
charge
separation
absorption
profile
compatible
with
optical
transparency
skin
tissue,
under
simulated
physiological
conditions.
Biocompatibility
is
validated
using
chicken
chorioallantoic
membrane
cytotoxicity
assays
primary
neurons,
showing
no
adverse
effects
on
cell
viability
or
morphology.
The
layers
demonstrated
stable
photoinduced
over
28
days
in
electrolytic
environments
a
significant
voltage
increase
≈40
mV
after
one
day.
addition
PM6
overlayer
improved
responses
reduced
swelling,
possibly
acting
as
selective
barrier,
however,
leading
decrease
achievable
peak
current
densities
time.
Atomic
force
microscopy
transient
spectroscopy
confirmed
structural
functional
films,
almost
unaffected
generation
recombination
rates
aqueous
environments.
layer
slowed
formation
due
increased
diffusion
lengths.
These
findings
underscore
blend‘s
use
bioelectronics.
Future
studies
should
examine
performance
vivo
conditions
focus
an
understanding
interaction
mechanisms
biological
systems.
Chemical Science,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
Symmetry-aware
fragment
decomposition
and
symmetry-constrained
Monte
Carlo
Tree
Search
generator
to
design
realistic
molecules
with
near-infrared
absorption.
