Current Opinion in Electrochemistry,
Journal Year:
2024,
Volume and Issue:
46, P. 101497 - 101497
Published: March 28, 2024
Semiconducting
polymers
are
a
fascinating
class
of
materials,
both
fundamentally
and
because
their
broad
applicability
in
electronics,
photovoltaics,
display
technology
bioelectronics.
Relatively
few
attempts
have
been
made
to
explore
the
properties
individual
polymer
chains,
however,
those
studies
led
range
observations
that
can
be
difficult
reconcile.
Here
we
discuss
these
measurements
with
attention
differences
experimental
configurations
may
underlie
breadth
reports.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 5, 2024
Abstract
Organic
electrochemical
transistors
(OECTs)
are
of
great
interest
owing
to
their
potential
applications
in
bioelectronics
and
neuromorphic
systems.
However,
n‐type
OECTs
suffer
from
poor
stability
facile
degradation,
mainly
due
the
oxygen
reduction
reactions
organic
mixed
ionic‐electronic
conductors
during
device
operation.
In
this
study,
a
small‐molecule
passivation
strategy
is
introduced
greatly
improve
poly(benzobisimidazobenzophenanthroline)
(BBL)‐based
OECTs.
6,6‐Phenyl‐C61‐butyric
acid
methyl
ester
(PCBM)
spin‐coated
onto
BBL
layer
form
smooth
hydrophobic
layer,
which
effectively
inhibits
while
enabling
ion
permeation
aqueous
electrolytes.
Consequently,
employing
PCBM/BBL
bilayers
with
an
optimized
PCBM
thickness
exhibit
significantly
improved
operational
at
various
electrolyte
conditions
(0.1
m
NaCl
or
NaOH)
over
wide
gate‐voltage
sweep
range
(from
−0.7
0.7
V).
Owing
high
electron
mobility
PCBM,
carrier
switching
speed
also
compared
those
pristine
This
study
demonstrates
beneficial
effects
simple
surface
provides
valuable
insights
for
design
high‐performance
stable
more
specialized
advanced
applications.
Chemistry of Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Aug. 7, 2024
Despite
containing
attractive
redox-functional
groups
in
their
structure,
research
on
radical
polymers
(RPs)
and
integration
into
biosensing
applications
remains
limited.
Herein,
we
propose
a
study
integrating
newly
synthesized
conjugated
RP
(BTMP-EDOT)
with
conventional
polymer
(P3MEET)
systems,
employing
them
as
the
active
channel
material
organic
electrochemical
transistor
(OECT)-based
biosensors
designed
for
detecting
dopamine
(DA).
Through
precise
blend
composition
adjustment,
optimized
OECT
exhibits
volumetric
capacitance
value
(C*)
of
243
F
cm–3
maximum
transconductance
(gm)
∼400
mS.
Moreover,
achieved
an
exceptional
clinical-level
detection
limit
DA
at
1
pM
remarkable
ultraspecificity,
even
presence
large
excess
interferents.
The
highly
sensitive
selective
performance
is
through
meticulous
design,
which
involves
harnessing
redox
activity
TEMPO
sites
to
enhance
ion
penetration
bulk
film
engineering
synergistic
inter-
intramolecular
π-orbital
overlap
between
primary
constituents
facilitate
efficient
electronic
transport
along
chains.
Furthermore,
our
proposed
design
concept,
coupled
CRP
structure
modification,
could
enable
development
OECTs
tailored
low-cost
disposable
applications.
ACS Applied Polymer Materials,
Journal Year:
2024,
Volume and Issue:
6(16), P. 9559 - 9569
Published: Aug. 12, 2024
As
the
demand
for
multifunctional
materials
increases
within
realm
of
electronics
and
photonics,
composites
that
support
both
ionic
electronic
charge
transports
are
emerging
as
a
promising
platform
future
generation
devices.
This
study
develops
characterizes
green
composite
material,
utilizing
nonconductive
poly(vinyl
alcohol)
(PVA)
matrix
integrated
with
glycerol
(Gly)
enhanced
conductivity
mechanical
flexibility,
amphiphilic
Janus
nanoparticles
(JNPs),
in
situ
synthesized
polyaniline
(PANi).
The
incorporation
JNPs,
modified
to
possess
either
insulating
or
semiconducting
properties
through
PANi
layer
on
one
lobes,
synthesis
key
achieving
mixed
ionic–electronic
conductivity,
crucial
advanced
dielectric
functionalities.
Employing
broadband
spectroscopy,
this
assesses
composite's
electrical
properties,
focusing
interplay
polarization
mechanisms
induced
by
each
component.
Results
reveal
glycerol's
contribution
hydrogen
bond
network
is
significant,
while
JNPs/PANi
add
distinct
transport
pathways,
indicating
complex
yet
effective
system
composite.
utilization
water
solvent
emphasizes
material's
suitability
environmentally
sustainable
applications
presenting
its
potential
next-generation
device
architectures.
Current Opinion in Electrochemistry,
Journal Year:
2024,
Volume and Issue:
46, P. 101497 - 101497
Published: March 28, 2024
Semiconducting
polymers
are
a
fascinating
class
of
materials,
both
fundamentally
and
because
their
broad
applicability
in
electronics,
photovoltaics,
display
technology
bioelectronics.
Relatively
few
attempts
have
been
made
to
explore
the
properties
individual
polymer
chains,
however,
those
studies
led
range
observations
that
can
be
difficult
reconcile.
Here
we
discuss
these
measurements
with
attention
differences
experimental
configurations
may
underlie
breadth
reports.
