ACS Applied Materials & Interfaces,
Journal Year:
2024,
Volume and Issue:
16(47), P. 65425 - 65435
Published: Nov. 13, 2024
A
rise
in
demand
for
disposable
consumer
electronics
such
as
smart
packaging,
wearable
electronics,
and
single-use
point-of-source
sensors
requires
the
development
of
eco-friendly
compostable
electronic
materials.
Chitosan
is
derived
from
crustacean
waste
offers
high
dielectric
constant
values
without
requiring
rigorous
purification,
making
it
sustainable
large-scale
device
manufacturing.
When
processed
acidic
media,
protonated
backbone
chitosan
pairs
with
counterions
acid
dissociation
to
form
thin
films
electrical
double
layers
(EDLs)
tunable
capacitive
properties.
We
report
importance
choice
when
processing
by
surveying
a
series
halogenated
biosourced
acids
varying
pKa
solutions
different
pH
values.
Oxalic
outperforms
other
acids,
maximum
areal
capacitance
161
nF·mm–2.
Tartaric
citric
acid,
despite
lower
values,
showed
promising
results
stable
EDL
reproducibility,
them
optimal
large-area
The
incorporation
sorbitol
plasticizer
boosts
formation
onset
all
chitosan–acid
combinations
1
×
103–105
Hz
improves
reproducibility.
High-performing
single-walled
carbon
nanotube
film
transistors
were
made
using
chitosan-based
dielectrics
treated
sorbitol,
leading
transconductance
≈5.2
μS
Ion/Ioff
105.
capacitors
remain
functional
after
one
year
storage
ambient
conditions.
Overall,
this
study
demonstrates
durable
high-performance
based
on
stresses
use
plasticizing
additives,
sorbitol.
Journal of the American Chemical Society,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 7, 2025
The
double
closed-ring
isomer
of
a
diarylethene
fused
dimer
was
synthesized
by
combination
photochemical
and
oxidative
cyclization
reaction.
has
fixed
π-conjugation
in
rigid
planar
framework
so
that
this
compound
been
long-desired.
However,
with
respect
to
the
photocyclization
strong
electronic
interaction,
second-step
is
known
be
suppressed
due
fast
energy
transfer
into
generated
first-step
photocyclization.
In
work,
instead
photoisomerization,
isomerization
applied
for
cyclization,
where
oxidized
state
spontaneously
underwent
thermal
radical
coupling
at
room
temperature.
resulting
showed
NIR
absorption,
owing
widely
extended
throughout
entire
molecule.
ring-opening
reaction
forming
closed-open-ring
when
exposed
light
despite
having
very
low
quantum
yield
approximately
10-8.
As
result,
exhibits
reversible
stepwise
switching
induced
photo-
redox
stimuli
UV-vis-NIR
region.
ACS Materials Letters,
Journal Year:
2024,
Volume and Issue:
6(7), P. 2569 - 2576
Published: May 24, 2024
Poly(benzodifurandione)
(n-PBDF)
has
garnered
significant
interest
as
it
displays
the
highest
reported
n-type
electrical
conductivity
among
π-conjugated
polymers.
Earlier
theoretical
studies
of
n-PBDF
could
not
rationalize
this
high
conductivity.
Here,
we
explore
geometric
and
electronic
properties
two-dimensional
(2D)
three-dimensional
(3D)
networks
using
first-principles
calculations
tight-binding
models.
In
2D
networks,
a
metallic
configuration
occurs
when
considering
coplanar
geometry
with
BDF
moieties
bounded
to
protons
on
same
side;
however,
backbone
torsions
disrupt
behavior.
contrast,
all
3D
architectures
consistently
lead
nature,
which
is
impacted
by
variations
in
proton
positions
stacking
patterns.
Tight-binding
models
allowed
us
evaluate
respective
strengths
intra-
interchain
couplings
n-PBDF.
Overall,
our
investigations
provide
comprehensive
picture
into
shed
light
how
they
are
affected
system
dimensionality,
positions,
Chemical Science,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
The
field
of
π-conjugated
organic
materials
has
seen
significant
advances
in
recent
years.
However,
enhancing
the
functionality
well-established,
mass-produced
compounds
remains
a
considerable
challenge,
despite
being
an
intriguing
strategy
for
designing
high-value
with
low
production
costs.
In
this
context,
vat
dyes,
known
their
wide
range
colors
and
extensive
use
textile
industry
are
particularly
attractive.
Here,
we
present
innovative
approach
that
conjoins
phosphorus
heterocycles
dye
Vat
Orange
3
(VO3)
to
yield
novel
nanocarbons
enhanced
functional
properties.
X-ray
crystallography
reveals
distinct
twisting
scaffold
solid
state,
while
modification
centers
leads
versatile
photophysics.
Thin-film
analyses
show
unusual,
pronounced
emission
features
switch
from
green
orange
upon
aggregation.
Furthermore,
Lewis-adduct
formation
induces
fluorescence
redshift
coordination
moiety
cyclic
voltammetry
confirms
acceptor
character
system.
This
work
demonstrates
versatility
phosphorus-modified
dyes
as
value-added
paves
way
development
new
2D
broad
technological
relevance.
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.
Journal of Applied Physics,
Journal Year:
2025,
Volume and Issue:
137(6)
Published: Feb. 12, 2025
Organic
solar
cells
based
on
non-fullerene
acceptors
(NFAs)
hold
great
potential
for
low-cost
energy
production;
however,
their
large-scale
manufacturability
and
long-term
stability
still
pose
challenges.
In
this
work,
we
clarify
how
the
doping
concentration
in
PM6:Y6-based
evolves
as
a
function
of
time
stored
ambient.
Our
results
show
rapid
increase
concentration,
reaching
3
×
1016
cm−3
within
first
few
hours
ambient
exposure.
After
100
h
exposure
to
ambient,
saturates,
levels
up
1017
cm−3.
A
variation
active
layer
thickness
indicates
higher
concentrations
thinner
samples.
Previous
work
has
shown
that
order
can
have
drastic
effect
device
performance—either
positive
or
negative,
depending
other
parameters.
findings
highlight
importance
properly
characterizing
unintentional
organic
cell
devices,
not
only
pristine
but
also
aging.
Advanced Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 26, 2025
Abstract
In
the
context
of
quantum
thermodynamics,
batteries
have
emerged
as
promising
devices
for
energy
storage
and
manipulation.
Over
past
decade,
substantial
progress
is
made
in
understanding
fundamental
properties
batteries,
with
several
experimental
implementations
showing
great
promise.
This
perspective
provides
an
overview
solid‐state
materials
platforms
that
can
lead
to
fully
operational
batteries.
After
briefly
introducing
basic
features
organic
microcavities
are
discussed,
where
superextensive
charging
already
demonstrated
experimentally.
Now,
this
explores
other
materials,
including
inorganic
nanostructures
(such
wells
dots),
perovskite
systems,
(normal
high‐temperature)
superconductors.
Key
achievements
these
areas,
relevant
realization
highlighted.
The
challenges
future
research
directions
also
addressed.
Despite
their
enormous
potential
devices,
into
advanced
still
its
infancy.
paper
aims
stimulate
interdisciplinarity
convergence
among
different
science
communities
accelerate
development
new
device
architectures
Advanced Electronic Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 2, 2025
Abstract
Blends
of
small‐molecule
organic
semiconductors
(OSCs)
and
insulating
polymers
in
Organic
Field‐Effect
Transistors
(OFETs)
are
mainly
used
to
assist
the
solution‐processing
OSCs,
but
they
can
also
reduce
interfacial
charge
traps
due
vertical
phase
separation.
Such
known
affect
both
electrical
response
radiation‐induced
collection
capability
these
devices.
This
study
aims
optimize
separation
blend
films
1,4,8,11‐tetramethyl‐6,13‐triethylsilylethynyl
pentacene
(TMTES)
polystyrene
(PS)
minimize
trap
density
at
semiconductor/dielectric
interface,
thereby
enhancing
performance
direct
X‐ray
detection
sensitivity
OFETs.
A
PS
mass
concentration
33%
is
identified
as
optimal
for
achieving
high‐quality
favorable
film
morphology.
formulation
led
with
reduced
hole
improved
capacity,
demonstrating
a
field‐effect
mobility
(1.3
±
0.4)
cm
2
V
−1
s
(5.6
0.2)
×
10
3
µC
Gy
−2
low
applied
voltages.
Remarkably,
molecular
weight
does
not
significantly
impact
separation,
thin
morphology,
or
properties.
These
findings
crucial
development
high‐performance
OFETs
their
application
detectors.
