Low‐Power and Multimodal Organic Photoelectric Synaptic Transistors Modulated by Photoisomerization for UV Damage Perception and Artificial Visual Recognition
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 19, 2025
Abstract
Low‐power
and
efficiently
parallel
neuromorphic
computing
is
expected
to
break
the
bottleneck
of
von
Neumann
architecture.
Due
direct
responses
optical
signals,
photonic
synaptic
devices
can
work
as
core
components
artificial
visual
systems,
accelerating
development
neural
computing.
Furthermore,
community
looking
for
effective
coupling
electronic
behaviors
within
an
individual
organic
device
achieve
further
functional
integration.
Photoisomeric
molecules
with
photo‐regulatable
properties
are
facilitate
this
process.
Herein,
photoelectric
transistors
(OPSTs)
constructed
by
introducing
poly(2‐(3′,3′‐dimethyl‐6‐nitrospiro[chromene‐2,2′‐indolin]‐1′‐yl)
ethyl
methacrylate)
(PSPMA)
photoisomeric
groups,
which
effectively
improves
photo‐synaptic
response.
polarization
induction
light‐assisted
charge
trapping
PSPMA,
OPSTs
simulate
typical
significant
conductance
modulation
at
low
voltage
assistance
UV
light.
The
power
consumption
84
aJ
per
event.
Moreover,
mimic
nociceptors,
recognize
handwritten
digits
93.33%
accuracy,
decode
encrypted
information,
demonstrating
potential
applications
in
damage
perception
recognition.
These
findings
will
expand
application
devices,
open
up
new
possibilities
hardware
architectures
synapses.
Language: Английский
Microstructure-modulated conductive filaments in Ruddlesden-Popper perovskite-based memristors and their application in artificial synapses
Materials Today Physics,
Journal Year:
2025,
Volume and Issue:
unknown, P. 101708 - 101708
Published: March 1, 2025
Language: Английский
Regulating Charge Distribution to Achieve High‐Performance n‐Type Single‐Component Organic Neuromorphic Phototransistors
Yifan Li,
No information about this author
Yanyan Cao,
No information about this author
Cheng-Yu Wang
No information about this author
et al.
Advanced Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 23, 2025
Abstract
Organic
optoelectronic
devices
are
advancing
toward
miniaturization
and
integration,
demanding
high
performance,
low
energy
consumption,
simplified
manufacturing.
The
development
of
single‐component
phototransistors
is
still
in
its
early
stages,
particularly
for
high‐performance
n‐type
polymer
semiconductors.
Here,
thieno[3,2‐b]thiophene‐3,6‐dicarbonitrile
(2CNTT)
developed
a
cyano‐mediated
torsion‐polarization
synergy
strategy
proposed
to
construct
conjugated
polymers
via
direct
(hetero)arylation
polycondensation.
This
structural
modification
promotes
intramolecular
decoupling
enhances
intermolecular
interactions,
enabling
intra‐/interchain
charge
distribution
be
regulated.
N‐type
copolymers
based
on
2CNTT
exhibited
broad
visible‐light
absorption
range
small
exciton
binding
energy,
capable
stable
generation
stepwise
dissociation.
PFIID2NTT‐based
phototransistor
showed
unipolar
electron
mobility
strong
photoresponse
with
light‐current/dark‐current
ratio
as
9.02
×
10
4
,
paired‐pulse
facilitation
index
over
236%
under
visible
light.
also
operate
at
an
ultra‐low
consumption
(13.23
aJ),
mimicking
neural
synapse
behavior
long‐term
memory
functionality.
optimizes
utilization
semiconductors,
presenting
new
paradigm
developing
multifunctional
organic
optoelectronics.
Language: Английский
Multifunctional Organic Materials, Devices, and Mechanisms for Neuroscience, Neuromorphic Computing, and Bioelectronics
Felix L Hoch,
No information about this author
Qishen Wang,
No information about this author
Kian Guan Lim
No information about this author
et al.
Nano-Micro Letters,
Journal Year:
2025,
Volume and Issue:
17(1)
Published: May 8, 2025
Abstract
Neuromorphic
computing
has
the
potential
to
overcome
limitations
of
traditional
silicon
technology
in
machine
learning
tasks.
Recent
advancements
large
crossbar
arrays
and
silicon-based
asynchronous
spiking
neural
networks
have
led
promising
neuromorphic
systems.
However,
developing
compact
parallel
for
integrating
artificial
into
hardware
remains
a
challenge.
Organic
computational
materials
offer
affordable,
biocompatible
devices
with
exceptional
adjustability
energy-efficient
switching.
Here,
review
investigates
made
development
organic
devices.
This
explores
resistive
switching
mechanisms
such
as
interface-regulated
filament
growth,
molecular-electronic
dynamics,
nanowire-confined
vacancy-assisted
ion
migration,
while
proposing
methodologies
enhance
state
retention
conductance
adjustment.
The
survey
examines
challenges
faced
implementing
low-power
computing,
e.g.,
reducing
device
size
improving
time.
analyses
these
adjustable,
flexible,
consumption
applications,
viz.
biohybrid
circuits
interacting
biological
systems,
systems
that
respond
specific
events,
robotics,
intelligent
agents,
bioelectronics,
neuroscience,
other
prospects
this
technology.
Language: Английский