Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(18)
Published: March 2, 2024
Organic
electrochemical
transistors
(OECTs)
rely
on
both
efficient
ionic
doping/de-doping
process
and
carrier
transport
in
the
mixed
ionic-electronic
channel
under
modulation
of
gate
bias.
Moreover,
channels
that
hold
photopatterning
capability
are
highly
desired
to
minimize
parasitic
capacitance
simplify
fabrication
process/cost.
However,
yielding
photo-patternable
with
precise/robust
patterning
controllable
coupling
is
still
challenging.
Herein,
double-end
trifluoromethyl
diazirines
(DtFDA)
different
chain
lengths
introduced
OECT
act
as
photo-crosslinker
medium
regulate
transport.
Specifically,
high-resolution
patterns
a
minimum
line
width/gap
2
μm
realized
p(g2T-T)
or
Homo-gDPP
based
by
introducing
DtFDA.
Maximum
transconductances
68.6
mS
81.6
mS,
current
on/off
ratio
10
Chemical Reviews,
Journal Year:
2022,
Volume and Issue:
123(2), P. 613 - 662
Published: Aug. 17, 2022
The
development
of
fiber
materials
has
accompanied
the
evolution
human
civilization
for
centuries.
Recent
advances
in
science
and
chemistry
offered
fibers
new
applications
with
various
functions,
including
energy
harvesting,
storing,
displaying,
health
monitoring
treating,
computing.
unique
one-dimensional
shape
devices
endows
them
advantages
to
work
as
human-interfaced
electronics
due
small
size,
lightweight,
flexibility,
feasibility
integration
into
large-scale
textile
systems.
In
this
review,
we
first
present
a
discussion
basics
design
principles
devices,
followed
by
comprehensive
analysis
on
recently
developed
devices.
Finally,
provide
current
challenges
facing
field
give
an
outlook
future
research
directions.
With
novel
continuing
be
discovered
after
two
decades
research,
envision
that
could
have
important
impact
our
life
near
future.
Science,
Journal Year:
2023,
Volume and Issue:
381(6658), P. 686 - 693
Published: Aug. 10, 2023
The
use
of
bioelectronic
devices
relies
on
direct
contact
with
soft
biotissues.
For
transistor-type
devices,
the
semiconductors
that
need
to
have
interfacing
biotissues
for
effective
signal
transduction
do
not
adhere
well
wet
tissues,
thereby
limiting
stability
and
conformability
at
interface.
We
report
a
bioadhesive
polymer
semiconductor
through
double-network
structure
formed
by
brush
redox-active
semiconducting
polymer.
resulting
film
can
form
rapid
strong
adhesion
tissue
surfaces
together
high
charge-carrier
mobility
~1
square
centimeter
per
volt
second,
stretchability,
good
biocompatibility.
Further
fabrication
fully
transistor
sensor
enabled
us
produce
high-quality
stable
electrophysiological
recordings
an
isolated
rat
heart
in
vivo
muscles.
Journal of the American Chemical Society,
Journal Year:
2022,
Volume and Issue:
144(10), P. 4642 - 4656
Published: March 8, 2022
A
series
of
fully
fused
n-type
mixed
conduction
lactam
polymers
p(g7NCnN),
systematically
increasing
the
alkyl
side
chain
content,
are
synthesized
via
an
inexpensive,
nontoxic,
precious-metal-free
aldol
polycondensation.
Employing
these
as
channel
materials
in
organic
electrochemical
transistors
(OECTs)
affords
state-of-the-art
performance
with
p(g7NC10N)
recording
OECT
electron
mobility
1.20
×
10-2
cm2
V-1
s-1
and
a
μC*
figure
merit
1.83
F
cm-1
s-1.
In
parallel
to
high
performance,
upon
solution
doping
(4-(1,3-dimethyl-2,3-dihydro-1H-benzoimidazol-2-yl)phenyl)dimethylamine
(N-DMBI),
highest
thermoelectric
is
observed
for
p(g7NC4N),
maximum
electrical
conductivity
7.67
S
power
factor
10.4
μW
m-1
K-2.
These
results
among
reported
polymers.
Importantly,
while
this
polylactam
ionic-electronic
conductors
(OMIECs)
highlights
that
synthetic
molecular
design
strategies
bolster
can
be
translated
also
achieve
(OTE)
nuanced
approach
must
used
optimize
performance.
Herein,
we
outline
metrics
provide
new
insights
into
guidelines
next
generation
high-performance
applications,
presenting
first
time
single
polymer
within
both
OTE
applications.
Chemical Reviews,
Journal Year:
2023,
Volume and Issue:
123(8), P. 4693 - 4763
Published: Feb. 8, 2023
Fibers,
originating
from
nature
and
mastered
by
human,
have
woven
their
way
throughout
the
entire
history
of
human
civilization.
Recent
developments
in
semiconducting
polymer
materials
further
endowed
fibers
textiles
with
various
electronic
functions,
which
are
attractive
applications
such
as
information
interfacing,
personalized
medicine,
clean
energy.
Owing
to
ability
be
easily
integrated
into
daily
life,
soft
fiber
electronics
based
on
polymers
gained
popularity
recently
for
wearable
implantable
applications.
Herein,
we
present
a
review
previous
current
progress
polymer-based
electronics,
particularly
focusing
smart-wearable
areas.
First,
provide
brief
overview
viewpoint
basic
concepts
functionality
requirements
different
devices.
Then
analyze
existing
associated
devices
interfaces,
healthcare
energy
conversion
storage.
The
working
principle
performance
summarized.
Furthermore,
focus
fabrication
techniques
Based
continuous
one-dimensional
yarn,
introduce
two-
three-dimensional
fabric
fabricating
methods.
Finally,
challenges
relevant
perspectives
potential
solutions
address
related
problems.
Nature Communications,
Journal Year:
2023,
Volume and Issue:
14(1)
Published: March 25, 2023
Abstract
Electrochemical
aptamer-based
sensors
are
typically
deployed
as
individual,
passive,
surface-functionalized
electrodes,
but
they
exhibit
limited
sensitivity
especially
when
the
area
of
electrode
is
reduced
for
miniaturization
purposes.
We
demonstrate
that
organic
electrochemical
transistors
(electrolyte
gated
with
volumetric
gating)
can
serve
on-site
amplifiers
to
improve
sensors.
By
monolithically
integrating
an
Au
working/sensing
electrode,
on-chip
Ag/AgCl
reference
and
Poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate)
counter
—
also
serving
channel
transistor—
we
simultaneously
perform
testing
traditional
electroanalytical
measurement
on
including
cyclic
voltammetry
square-wave
voltammetry.
This
device
directly
amplify
current
from
sensor
via
in-plane
modulation
in
electrode/transistor
channel.
The
integrated
sense
transforming
growth
factor
beta
1
3
4
orders
magnitude
enhancement
compared
(292
μA/dec
vs.
85
nA/dec).
approach
believed
be
universal,
applied
a
wide
range
tethered
reporter-based
enhance
sensitivity,
aiding
easing
burden
backend
signal
processing.
Advanced Materials,
Journal Year:
2023,
Volume and Issue:
35(39)
Published: March 9, 2023
Living
organisms
have
a
very
mysterious
and
powerful
sensory
computing
system
based
on
ion
activity.
Interestingly,
studies
iontronic
devices
in
the
past
few
years
proposed
promising
platform
for
simulating
sensing
functions
of
living
organisms,
because:
1)
can
generate,
store,
transmit
variety
signals
by
adjusting
concentration
spatiotemporal
distribution
ions,
which
analogs
to
how
brain
performs
intelligent
alternating
flux
polarization;
2)
through
ionic-electronic
coupling,
bridge
biosystem
with
electronics
offer
profound
implications
soft
electronics;
3)
diversity
be
designed
recognize
specific
ions
or
molecules
customizing
charge
selectivity,
ionic
conductivity
capacitance
adjusted
respond
external
stimuli
schemes,
more
difficult
electron-based
devices.
This
review
provides
comprehensive
overview
emerging
neuromorphic
devices,
highlighting
representative
concepts
both
low-level
high-level
introducing
important
material
device
breakthroughs.
Moreover,
as
means
are
discussed
regarding
pending
challenges
future
directions.
ACS Applied Electronic Materials,
Journal Year:
2023,
Volume and Issue:
5(2), P. 593 - 611
Published: Jan. 31, 2023
By
virtue
of
its
tunable
electrical
conductivity,
remarkable
solution
processing
capability,
and
great
biocompatibility,
polyaniline
(PANI)
has
been
recognized
as
an
attractive
active
material
for
use
in
biological
chemical
("bio/chemical")
sensors.
This
Spotlight
article
focuses
on
the
structure
characteristics
PANI-based
materials
corresponding
device-level
sensing
performance.
bio/chemical
sensors,
such
chemi-resistive
electrochemical
transistor-based
are
systematically
elucidated
based
device
architecture
mechanism.
The
structure–function
relationships
among
PANI
doping
state,
microscopic
structure,
local
crystallinity,
their
functionalities
three
types
sensors
have
elaborated.
Finally,
state-of-the-art
progress
applications
these
breakthroughs
a
broader
context
outlined
from
challenges
to
strategies.
npj Flexible Electronics,
Journal Year:
2023,
Volume and Issue:
7(1)
Published: March 7, 2023
Abstract
Organic
electrochemical
transistors
(OECTs)
are
being
researched
for
various
applications,
ranging
from
sensors
to
logic
gates
and
neuromorphic
hardware.
To
meet
the
requirements
of
these
diverse
device
fabrication
process
must
be
compatible
with
flexible
scalable
digital
techniques.
Here,
we
report
a
direct-write
additive
fabricate
fully
3D-printed
OECTs,
using
3D
printable
conducting,
semiconducting,
insulating,
electrolyte
inks.
These
which
operate
in
depletion
mode,
can
fabricated
on
substrates,
resulting
high
mechanical
environmental
stability.
The
OECTs
have
good
dopamine
biosensing
capabilities
(limit
detection
down
6
µM
without
metal
gate
electrodes)
show
long-term
(~1
h)
synapse
response,
indicating
their
potential
applications
such
as
This
manufacturing
strategy
is
suitable
that
require
rapid
design
changes
digitally
enabled
Advanced Science,
Journal Year:
2024,
Volume and Issue:
11(27)
Published: Jan. 23, 2024
The
improvement
of
living
standards
and
the
advancement
medical
technology
have
led
to
an
increased
focus
on
health
among
individuals.
Detections
biomarkers
are
feasible
approaches
obtaining
information
about
status,
disease
progression,
response
treatment
individual.
In
recent
years,
organic
electrochemical
transistors
(OECTs)
demonstrated
high
electrical
performances
effectiveness
in
detecting
various
types
biomarkers.
This
review
provides
overview
working
principles
OECTs
their
performance
multiple
biomarkers,
with
a
advances
representative
applications
wearable
implantable
biomarker
detections,
perspective
for
future
development
OECT-based
sensors.