Journal of Semiconductors,
Journal Year:
2024,
Volume and Issue:
45(12), P. 122302 - 122302
Published: Dec. 1, 2024
Abstract
Simulating
the
human
olfactory
nervous
system
is
one
of
key
issues
in
field
neuromorphic
computing.
Olfactory
neurons
interact
with
gas
molecules,
transmitting
and
storing
odor
information
to
center
brain.
In
order
emulate
complex
functionalities
neurons,
this
study
presents
a
flexible
synapse
transistor
(OST)
based
on
pentacene/C8-BTBT
organic
heterojunction.
By
modulating
interface
between
energy
bands
semiconductor
layers,
device
demonstrates
high
sensitivity
(ppb
level)
memory
function
for
NH
3
sensing.
Typical
synaptic
behaviors
triggered
by
pulses
have
been
successfully
demonstrated,
such
as
inhibitory
postsynaptic
currents
(IPSC),
paired-pulse
depression
(PPD),
long-term
potentiation/depression
(LTP/LTD),
transition
from
short-term
(STD)
(LTD).
Furthermore,
maintains
stable
functions
even
under
different
bending
conditions,
which
can
present
new
insights
possibilities
systems
bio-inspired
electronic
products.
Chemical Reviews,
Journal Year:
2024,
Volume and Issue:
124(22), P. 12738 - 12843
Published: Nov. 5, 2024
The
quest
to
imbue
machines
with
intelligence
akin
that
of
humans,
through
the
development
adaptable
neuromorphic
devices
and
creation
artificial
neural
systems,
has
long
stood
as
a
pivotal
goal
in
both
scientific
inquiry
industrial
advancement.
Recent
advancements
flexible
electronics
primarily
rely
on
nanomaterials
polymers
owing
their
inherent
uniformity,
superior
mechanical
electrical
capabilities,
versatile
functionalities.
However,
this
field
is
still
its
nascent
stage,
necessitating
continuous
efforts
materials
innovation
device/system
design.
Therefore,
it
imperative
conduct
an
extensive
comprehensive
analysis
summarize
current
progress.
This
review
highlights
applications
neuromorphics,
involving
inorganic
(zero-/one-/two-dimensional,
heterostructure),
carbon-based
such
carbon
nanotubes
(CNTs)
graphene,
polymers.
Additionally,
comparison
summary
structural
compositions,
design
strategies,
key
performance,
significant
these
are
provided.
Furthermore,
challenges
future
directions
pertaining
materials/devices/systems
associated
neuromorphics
also
addressed.
aim
shed
light
rapidly
growing
attract
experts
from
diverse
disciplines
(e.g.,
electronics,
science,
neurobiology),
foster
further
for
accelerated
development.
Proceedings of the National Academy of Sciences,
Journal Year:
2025,
Volume and Issue:
122(2)
Published: Jan. 8, 2025
Human
perception
systems
are
highly
refined,
relying
on
an
adaptive,
plastic,
and
event-driven
network
of
sensory
neurons.
Drawing
inspiration
from
Nature,
neuromorphic
hold
tremendous
potential
for
efficient
multisensory
signal
processing
in
the
physical
world;
however,
development
artificial
neuron
with
a
widely
calibratable
spiking
range
reduced
footprint
remains
challenging.
Here,
we
report
organic
electrochemical
(OECN)
(<37
mm
2
)
based
high-performance
vertical
OECT
(vOECT)
complementary
circuitry
enabled
by
advanced
n-type
polymer
balanced
p-/n-type
vOECT
performance.
The
OECN
exhibits
outstanding
neuronal
characteristics,
capable
producing
spikes
state-of-the
art
firing
frequency
0.130
to
147.1
Hz.
Leveraging
this
capability,
develop
system
that
integrates
mechanical
sensors
them
synapse
tactile
perception.
successfully
encodes
stimulations
into
frequency-dependent
spikes,
which
further
converted
postsynaptic
responses.
This
bioinspired
design
demonstrates
significant
advance
cyborg
systems,
providing
perceptual
capabilities.
Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 22, 2025
Abstract
Polymeric
mixed
ionic‐electronic
conductors
(PMIECs)
are
gaining
significant
attention
due
to
their
potential
applications
in
organic
electrochemical
transistors
(OECTs).
However,
the
performance
of
n‐type
OECTs
still
lags
behind
that
p‐type
counterparts.
Here,
structure‐performance
correlation
fused
bithiophene
imide
dimer
(BTI2)‐based
PMIECs
is
systematically
investigated
with
backbone
evaluation
from
acceptor‐strong
donor
(A‐SD)
acceptor‐donor
(A‐D),
acceptor‐weak
(A‐WD),
acceptor
(A‐WA),
and
finally
A‐A
structures.
Compared
other
PMIECs,
backbone‐based
PMIEC
PBTI2g‐BTI
features
most
suppressed
lowest
unoccupied
molecular
orbital
energy
level,
a
highly
planar
backbone,
superior
dopability.
Consequently,
polymer
delivers
an
exceptional
unipolar
OECT
high
electron
mobility
0.25
cm
2
V⁻¹
s⁻¹
remarkable
µC
*
value
63.79
F
cm⁻¹
s⁻¹,
both
which
significantly
higher
than
those
types
PMIECs.
This
study
demonstrates
strategy
effective
approach
developing
high‐performance
for
OECTs.
Applied Physics Letters,
Journal Year:
2025,
Volume and Issue:
126(5)
Published: Feb. 3, 2025
In
this
study,
a
P3HT-based
multi-gate
frequency-dependent
synaptic
transistor
is
fabricated,
which
demonstrates
significant
advantages
in
mimicking
the
transmission
characteristics
of
biological
activities.
The
proposed
device
simulates
outputs
related
to
frequency
and
gate
voltage
modulation.
This
can
respond
differently
inputs
ranging
from
0.75
11.11
Hz,
at
same
input
frequency,
it
exhibits
different
responses
by
varying
control
0
−0.8
V.
innovative
design
dynamically
adjust
cutoff
enhancing
edge
feature
processing
images,
thereby
significantly
improving
recognition
accuracy
information
blurry
images
that
be
difficult
for
humans
distinguish.
Our
results
provide
hardware
edge-computing
image
method,
overcoming
limitations
traditional
single-gate
transistors
typically
have
fixed
parameters.
preprocessed
improved
80%
100%.
Combined
with
design,
excels
not
only
enhancement
but
also
offers
robust
support
future
neuromorphic
electronics.
Nano Letters,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 20, 2025
Developing
optoelectronic
synaptic
devices
with
low
power
consumption,
broadband
response,
and
biological
compatibility
is
crucial
to
simulate
the
functions
of
optic
nerve.
Here,
an
organic
synapse
transistor
based
on
C8-BTBT/PMMA/PbS
quantum
dots
(PbS
QDs)
fabricated,
which
has
good
stability,
consumption
(as
as
0.49
fJ
per
event
under
800
nm
near-infrared
optical
pulse),
response
from
ultraviolet
wavelengths.
Based
trap
release
photogenerated
carriers
by
PbS
QDs,
a
series
behaviors
are
simulated
device.
Furthermore,
we
use
artificial
neural
network
model
realize
recognition
facial
feature
image
in
broad
spectral
range;
rate
reached
96.25%
(350
ultraviolet),
92.14%
(580
visible),
90.03%
(800
near-infrared).
This
work
beneficial
for
advancing
development
future
intelligence
vision
sensing.
Advanced Science,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 27, 2025
Abstract
Copper(II)
phthalocyanine
(CuPc),
also
known
as
Pigment
Blue
15,
is
a
widely
utilized
pigment
renowned
for
its
exceptional
semiconducting
properties
when
refined
to
electronic‐grade
purity.
Recent
studies
have
confirmed
safety
if
ingested
at
doses
required
essential
active
components
in
edible
electronics
advanced
gastrointestinal
tract
monitoring.
Since
in‐body
operations
impose
stringent
constraints
on
operational
biases,
the
development
of
transistors
with
high
transconductance
low
voltages
ensure
adequate
amplification
gain.
This
study
presents
simple
and
cost‐effective
method
producing
solution‐processed
CuPc
films
characterized
by
unique
porous
microstructure
that
facilitates
efficient
volumetric
ion
uptake
mixed
ionic‐electronic
conductivity
electrolyte‐gated
devices.
These
exhibit
capacitance
30
times
greater
than
compact
produced
through
conventional
physical
vapor
deposition
methods.
The
resulting
demonstrate
On/Off
ratios
exceeding
10
3
channel
width‐normalized
up
50
µS
mm
−1
0.8
V,
establishing
their
potential
critical
future
Moreover,
proposed
results
limited
impact
impurities
charge
transport
efficiency,
thus
affecting
purification
costs
and,
crucially,
enabling
sourcing
pigments
recycling
upcycling.
Advanced Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 17, 2025
Abstract
A
nature‐inspired
fabrication
method
based
on
a
photolithography‐free
flexible
polymer
grid
is
reported
for
high‐resolution
pixelation
of
perovskite
photodiode
arrays
with
exceptional
mechanical
ductility
and
morphology
resembling
that
natural
compound
eyes.
The
resulting
pixelated
photosensitive
layer
has
≈1
µm
pixel
size
2000
Pixels
per
inch
(PPI)
resolution
when
fully
assembled
as
photodetector
array,
delivering
detectivity
>10
13
Jones
while
providing
cross‐talk
free
imaging.
Using
effectively
releases
stress
the
platform,
greatly
increasing
agility
otherwise
brittle
film.
This
novel
methodology
device
design
offer
new
possibilities
applications
in
robotics,
biomedical
imaging,
virtual
augmented
reality.
Advanced Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 18, 2025
Abstract
Neuromorphic
perception
capable
of
multisensory
integration
(MSI)
in
electrolytes
is
important
but
remains
challenging.
Here,
the
aqueous
implementation
artificial
MSI
reported
based
on
newly
emerged
organic
photoelectrochemical
transistor
(OPECT)
by
representative
visual
(light)‐gustatory
(sour)
perception.
Under
co‐modulation
light
and
H
+
/OH
−
,
synaptic
plasticity
several
typical
characteristics
are
mimicked,
including
“super‐additive
response,”
“inverse
effectiveness
effect”
“temporal
congruency.”
To
demonstrate
its
potential
usage,
different
types
associative
learning
corresponding
reflex
activities
further
emulated.
The
chemical
system
also
utilized
to
control
salivation
a
closed
loop
real‐time
perception,
processing,
integration,
actuation
emulate
biological
responses
toward
external
stimuli.
In
contrast
previous
solid‐state
operations,
this
work
offers
new
strategy
for
developing
neuromorphic
environments
that
analogous
those
biology.
