Temperature‐Resilient Polymeric Memristors for Effective Deblurring in Static and Dynamic Imaging
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 24, 2025
Abstract
Organic
memristors
have
emerged
as
promising
candidates
for
neuromorphic
computing
due
to
their
potential
low‐cost
fabrication,
large‐scale
integration,
and
biomimetic
functionality.
However,
practical
applications
are
often
hindered
by
limited
thermal
stability
device‐to‐device
variability.
Here,
an
organic
polymer‐based
memristor
using
a
thiadiazolobenzotriazole
(TBZ)
2,5‐Dioctyl‐3,6‐di(thiophen‐2‐yl)pyrrolo[3,4‐c]pyrrole‐1,4(2H,5H)‐dione
(DPP)‐based
conjugated
polymer
is
presented
that
exhibits
exceptional
reliable
resistance
switching
behavior
over
wide
temperature
range
(153–573
K).
The
device
leverages
charge‐transfer
mechanism
achieve
gradual
uniform
switching,
overcoming
the
challenges
associated
with
filamentary‐based
mechanisms.
memristor's
consistent
performance
enable
its
integration
into
various
applications,
including
image
processing.
device's
ability
demonstrated
effectively
deblur
images,
even
under
varying
conditions,
showcasing
robust
computing.
This
study
establishes
pathway
toward
high‐performance,
thermally
stable
advanced
artificial
intelligence
applications.
Язык: Английский
Geomimetic Interfacial Hydrothermal Synthesis of Crystalline Ionic Vinylene‐Linked Covalent Organic Frameworks
Small,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 5, 2025
Abstract
Ionic
vinylene‐linked
covalent
organic
frameworks
(ivCOFs)
with
ionic
characteristics
and
highly
conjugated
structures
have
been
promising
functional
materials.
However,
both
the
number
of
reported
COFs
its
synthetic
methodologies
still
be
limited.
Herein,
two
new
kinds
(named
as
COF‐NUC‐1
COF‐NUC‐2)
are
synthesized
by
novel
geomimetic
interfacial
hydrothermal
synthesis
for
first
time.
Due
to
insolubility
aldehyde
monomers
in
water,
a
molecule/water
interface
is
created,
where
water‐soluble
N‐ethyl‐2,4,6‐trimethylpyridinium
bromide
(ETMP‐Br)
can
react
via
interface‐confined
Knoevenagel
condensation
reaction.
The
resultant
show
high
crystallinity,
chemical
stability,
hydrophilic
nature.
Benefiting
from
electron‐withdrawing
redox
properties
pyridinium
salts,
as‐fabricated
memristor
based
on
film
shows
stable
nonvolatile
memory
effects,
featuring
ON/OFF
current
ratio
0.66
×
10
3
small
switch‐on
voltage
−0.68
V.
This
work
expands
realm
ivCOFs
deepens
understanding
synthesis.
Язык: Английский
Emerging Artificial Synaptic Devices Based on Organic Semiconductors: Molecular Design, Structure and Applications
ACS Applied Materials & Interfaces,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 9, 2025
In
modern
computing,
the
Von
Neumann
architecture
faces
challenges
such
as
memory
bottleneck,
hindering
efficient
processing
of
large
datasets
and
concurrent
programs.
Neuromorphic
inspired
by
brain's
architecture,
emerges
a
promising
alternative,
offering
unparalleled
computational
power
while
consuming
less
energy.
Artificial
synaptic
devices
play
crucial
role
in
this
paradigm
shift.
Various
material
systems,
from
organic
to
inorganic,
have
been
explored
for
neuromorphic
devices,
with
materials
attracting
attention
their
excellent
photoelectric
properties,
diverse
choices,
versatile
preparation
methods.
Organic
semiconductors,
particular,
offer
advantages
over
transition-metal
dichalcogenides,
including
ease
flexibility,
making
them
suitable
large-area
films.
This
review
focuses
on
emerging
artificial
based
discussing
different
branches
within
semiconductor
system,
various
fabrication
methods,
device
structure
designs,
applications
synapse.
Critical
considerations
achieving
truly
human-like
dynamic
perception
systems
semiconductors
are
also
outlined,
reflecting
ongoing
evolution
computing.
Язык: Английский
Multifunctional Organic Materials, Devices, and Mechanisms for Neuroscience, Neuromorphic Computing, and Bioelectronics
Nano-Micro Letters,
Год журнала:
2025,
Номер
17(1)
Опубликована: Май 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.
Язык: Английский
Synthesis and resolution of a 1,1′-biazulene analogue of BINOL
RSC Advances,
Год журнала:
2025,
Номер
15(19), С. 14881 - 14892
Опубликована: Янв. 1, 2025
Biaryls
exhibiting
axial
chirality
have
been
extensively
exploited
in
fields
such
as
asymmetric
catalysis,
but
the
biaryl
linkage
typically
consists
of
benzenoid
aromatic
rings,
with
non-benzenoid
biaryls
being
scarce.
Here
we
report
first
preparation
a
(non-benzenoid)
1,1'-biazulene-2,2'-diol
("1,1'-BAzOL")
enantiopure
form
and
determine
its
barrier
to
racemisation.
Furthermore
transformed
into
corresponding
2,2'-bis(phosphonate),
thereby
demonstrating
functional
group
interconversion
through
cross
coupling
highlighting
potential
for
diversification.
Язык: Английский
Design and Computational Analysis of 3,5-Diphenyldithieno[3,2-b:2',3'-d]thiophene (DP-DTT) Derivatives with Electronically Adjustable Substituents for Enhanced OLED Performance
Materials Today Communications,
Год журнала:
2025,
Номер
unknown, С. 112941 - 112941
Опубликована: Май 1, 2025
Язык: Английский
Redox‐Active Polyaniline Covalently grafted Black Phosphorus Nanosheets for Integrated Digital‐Analogue Memristors
Macromolecular Rapid Communications,
Год журнала:
2024,
Номер
unknown
Опубликована: Сен. 12, 2024
Abstract
Surface
covalent
modification
of
black
phosphorus
(BP)
with
organic
polymers
represents
a
promising
strategy
to
enhance
its
stability
and
tailor
electronic
properties.
Despite
this
potential,
developing
memristive
materials
through
suitable
polymer
structures,
grafting
pathways,
polymerization
techniques
remains
challenging.
In
study,
polyaniline
(PANI)‐covalently
grafted
nanosheets
(BPNS)
are
successfully
prepared
redox
functionalities
via
the
in
situ
aniline
on
surface
4‐aminobenzene‐modified
BPNS.
The
PANI
coating
protects
BP
from
direct
exposure
oxygen
water,
it
endows
material
analog
properties,
characterized
by
continuously
adjustable
resistance
within
limited
voltage
scan
range.
When
subjected
broader
scan,
Al/PANI‐g‐BPNS/ITO
device
demonstrates
typical
bistable
digital
behavior.
integration
both
single
paves
way
for
development
high‐density,
multifunctional
components.
Язык: Английский