Angewandte Chemie,
Journal Year:
2024,
Volume and Issue:
136(20)
Published: March 21, 2024
Abstract
Memristors
are
essential
components
of
neuromorphic
systems
that
mimic
the
synaptic
plasticity
observed
in
biological
neurons.
In
this
study,
a
novel
approach
employing
one‐dimensional
covalent
organic
framework
(1D
COF)
films
was
explored
to
enhance
performance
memristors.
The
unique
structural
and
electronic
properties
two
1D
COF
(COF‐4,4′‐methylenedianiline
(MDA)
COF‐4,4′‐oxydianiline
(ODA))
offer
advantages
for
multilevel
resistive
switching,
which
is
key
feature
computing
applications.
By
further
introducing
TiO
2
layer
on
COF‐ODA
film,
built‐in
electric
field
between
COF‐TiO
interfaces
could
be
generated,
demonstrating
feasibility
utilizing
COFs
as
platform
constructing
memristors
with
tunable
states.
nanochannels
these
structures
contributed
efficient
modulation
electrical
conductance,
enabling
precise
control
over
weights
circuits.
This
study
also
investigated
potential
COF‐based
achieve
energy‐efficient
high‐density
memory
devices.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(20)
Published: March 21, 2024
Abstract
Memristors
are
essential
components
of
neuromorphic
systems
that
mimic
the
synaptic
plasticity
observed
in
biological
neurons.
In
this
study,
a
novel
approach
employing
one‐dimensional
covalent
organic
framework
(1D
COF)
films
was
explored
to
enhance
performance
memristors.
The
unique
structural
and
electronic
properties
two
1D
COF
(COF‐4,4′‐methylenedianiline
(MDA)
COF‐4,4′‐oxydianiline
(ODA))
offer
advantages
for
multilevel
resistive
switching,
which
is
key
feature
computing
applications.
By
further
introducing
TiO
2
layer
on
COF‐ODA
film,
built‐in
electric
field
between
COF‐TiO
interfaces
could
be
generated,
demonstrating
feasibility
utilizing
COFs
as
platform
constructing
memristors
with
tunable
states.
nanochannels
these
structures
contributed
efficient
modulation
electrical
conductance,
enabling
precise
control
over
weights
circuits.
This
study
also
investigated
potential
COF‐based
achieve
energy‐efficient
high‐density
memory
devices.
Chemical Science,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
Room-temperature
synthesis
bridges
the
gap
between
chemistry
and
practical
application
of
COFs.
This
review
provides
an
overview
characterization
technologies
COF
growth
mechanisms
recent
room-temperature
synthetic
strategies.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: June 22, 2024
Abstract
Transconductance
(
g
m
)
is
one
important
figure
of
merit
for
benchmarking
organic
electrochemical
transistor
(OECT)
biosensors,
which
nevertheless
experiences
undesired
fluctuation
instead
keep
constant
during
the
target
detection
varied
concentrations.
Light‐matter
interplay
recently
shown
as
a
potential
way
to
regulate
OECT
characteristics,
e.g.
maximum
at
zero
gate
bias
achieved.
In
this
work,
challenge
unstable
addressed
by
using
unique
metal‐organic
framework
(MOF)‐derived
hollow
tube
indium
sulfide
(m‐In
2
S
3
photogate.
Interestingly,
light
irradiation
on
m‐In
generate
straight
transfer
curve,
leading
stable
that
desirable
biological
application.
Exemplifying
an
aptasening,
such
device
then
tested
protein
quantification
with
sensitivity
detection.
This
work
features
feasibility
light‐matter
achieve
in
electronics.
Chemical Reviews,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 18, 2024
Two-dimensional
organic-inorganic
(2DOI)
van
der
Waals
hybrids
(vdWhs)
have
emerged
as
a
groundbreaking
subclass
of
layer-stacked
(opto-)electronic
materials.
The
development
2DOI-vdWhs
via
systematically
integrating
inorganic
2D
layers
with
organic
crystals
at
the
molecular/atomic
scale
extends
capabilities
traditional
vdWhs,
thanks
to
their
high
synthetic
flexibility
and
structural
tunability.
Constructing
an
hybrid
interface
atomic
precision
will
unlock
new
opportunities
for
generating
unique
interfacial
transport
properties
by
combining
strengths
layers,
thus
allowing
us
satisfy
growing
demand
multifunctional
applications.
Here,
this
review
provides
comprehensive
overview
latest
advancements
in
chemical
synthesis,
characterization,
numerous
applications
2DOI-vdWhs.
Firstly,
we
introduce
chemistry
physical
recently
rising
(O2DCs),
which
feature
crystalline
nanostructures
comprising
carbon-rich
repeated
units
linked
covalent/noncovalent
bonds
exhibit
strong
in-plane
extended
π-conjugation
weak
interlayer
vdWs
interaction.
Simultaneously,
representative
(I2DCs)
are
briefly
summarized.
After
that,
strategies
be
summarized,
including
synthesizing
single-component
O2DCs
dimensional
control
vdWhs
I2DCs.
With
these
approaches,
dimension,
stacking
modes,
composition
highlighted.
Subsequently,
special
focus
given
on
discussion
optical
electronic
materials
closely
relevant
structures,
so
that
can
establish
general
structure-property
relationship
In
addition
properties,
devices
such
transistors,
photodetectors,
sensors,
spintronics,
neuromorphic
well
energy
discussed.
Finally,
provide
outlook
discuss
key
challenges
future
development.
This
aims
foundational
understanding
inspire
further
innovation
next-generation
transformative
technological
potential.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(46)
Published: Aug. 6, 2024
Abstract
Organic
memristors
based
on
covalent
organic
frameworks
(COFs)
exhibit
significant
potential
for
future
neuromorphic
computing
applications.
The
preparation
of
high‐quality
COF
nanosheets
through
appropriate
structural
design
and
building
block
selection
is
critical
the
enhancement
memristor
performance.
In
this
study,
a
novel
room‐temperature
single‐phase
method
was
used
to
synthesize
Ta−Cu
3
COF,
which
contains
two
redox‐active
units:
trinuclear
copper
triphenylamine.
resultant
were
dispersed
acid‐assisted
exfoliation
subsequently
spin‐coated
fabricate
film
an
indium
tin
oxide
(ITO)
substrate.
synergistic
effect
dual
centers
in
film,
combined
with
its
distinct
crystallinity,
significantly
reduces
redox
energy
barrier,
enabling
efficient
modulation
128
non‐volatile
conductive
states
Al/Ta−Cu
COF/ITO
memristor.
Utilizing
convolutional
neural
network
(CNN)
these
conductance
states,
image
recognition
ten
representative
campus
landmarks
successfully
executed,
achieving
high
accuracy
95.13
%
after
25
training
epochs.
Compared
devices
binary
exhibits
45.56
improvement
enhances
efficiency
computing.
Covalent
organic
frameworks
(COFs)
have
emerged
as
highly
promising
materials
for
membrane
separations
due
to
their
high
porosity,
tunable
pore
sizes,
ordered
crystalline
structures,
and
exceptional
chemical
stability.
With
these
features,
COF
membranes
possess
greater
selectivity
permeability
than
conventional
materials,
making
them
the
preferred
choice
in
various
fields,
including
separations.
Fascinating
research
endeavors
encompassing
fabrication
strategies
COF-based
diverse
separation
applications.
Hence,
this
review
summarizes
latest
advancements
synthesis,
powders
continuous
applications
membranes.
Special
consideration
was
given
regulation
performance
optimization
of
applications,
such
size,
hydrophilicity/hydrophobicity,
surface
charge,
crystallinity,
Furthermore,
water
treatment,
metal
ion
separation,
solvent
nanofiltration,
gas
are
comprehensively
reviewed.
Finally,
results
future
prospects
development
discussed.
Future
may
be
focused
on
following
key
directions:
(1)
single-crystal
fabrication,
(2)
cost-effective
preparation,
(3)
subnanometer
engineering,
(4)
advanced
characterization
techniques,
(5)
AI-assisted
development.
