Nano Letters,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 14, 2025
The
conductive
paths
(CPs)
established
by
defects
in
halide
perovskites
(HPs)
tend
to
be
disrupted
under
external
influences,
leading
deterioration
of
their
RRAM
performances.
Here
we
propose
an
effective
strategy
enhance
the
CPs
HP
RRAMs
doping
Ag+
partially
substitute
Pb2+
MAPbI3,
which
facilitates
nonlocalized
growth
Ag
and
thereby
improves
stability
CPs.
optimal
doped
device
demonstrates
excellent
performances
including
high
ON/OFF
ratios
(>107),
long
retention
(>105
s),
large
endurance
(>103
cycles),
uniform
parameters,
yield.
In-depth
mechanism
investigation
illustrates
homogeneous
distribution
migration
a
sufficient
quantity
contribute
formation
stable,
HP.
This
possesses
superiorities
not
requiring
participation
active
electrode,
simple
material
preparation,
broad
applicability,
provides
new
perspective
for
developing
high-performance
RRAMs.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(38)
Published: April 13, 2024
Abstract
The
rapid
development
of
mixed‐halide
perovskites
has
established
a
versatile
optoelectronic
platform
owing
to
their
extraordinary
physical
properties,
but
there
remain
challenges
toward
achieving
highly
reliable
synthesis
and
performance,
in
addition,
post‐synthesis
approaches
for
tuning
photoluminescence
properties
after
device
fabrication
limited.
In
this
work,
an
effective
approach
is
reported
leveraging
hot
electrons
generated
from
plasmonic
nanostructures
regulate
the
optical
perovskites.
A
metasurface
composed
Au
nanoparticles
can
effectively
tailor
both
location‐specific
phase
segregation
CsPbI
2
Br
thin
films.
ultrafast
transient
absorption
spectroscopy
measurements
reveal
electron
injection
on
timescale
hundreds
femtoseconds.
Photocurrent
confirm
hot‐electron‐enhanced
photon‐carrier
conversion,
gate‐voltage
observed
because
correlated
carrier
halide
migration
perovskite
Finally,
characteristics
gate‐modulated
light
emission
are
found
conform
rectified
linear
unit
function,
serving
as
nonlinear
electrical‐to‐optical
converters
artificial
neural
networks.
Overall,
engineering
demonstrated
work
provides
control
perovskites,
underscoring
potential
metasurfaces
advancing
technologies.
The Journal of Physical Chemistry Letters,
Journal Year:
2024,
Volume and Issue:
unknown, P. 10087 - 10103
Published: Sept. 27, 2024
With
the
advent
of
generation
artificial
intelligence
(AI)
based
on
big
data-processing
technologies,
next-generation
memristor
and
memristive
neuromorphic
devices
have
been
actively
studied
with
great
interest
to
overcome
von
Neumann
bottleneck
limits.
Among
various
candidates,
halide
perovskites
(HPs)
in
spotlight
as
potential
candidates
for
these
due
their
unique
switching
characteristics
low
energy
consumption
flexible
integration
compatibility
across
sources
scalability.
We
outline
operating
principles
HP-based
memristors
devices.
explain
filamentary-
interface-type
according
type
conducting
pathway
occurring
inside
active
HP
layer
mechanisms
depending
species
that
make
up
this
pathway.
summarize
types
current
changes
beneficial
device
applications
finally
organize
suggested
analysis
tools
physical
models
enable
experimental
determination
from
perspectives.
The Innovation,
Journal Year:
2022,
Volume and Issue:
4(1), P. 100363 - 100363
Published: Dec. 20, 2022
Halide
perovskite
heterojunctions
rationally
integrate
the
chemical
and
physical
properties
of
multi-dimensional
perovskites
judiciously
chosen
semiconductor
materials,
offering
promise
going
beyond
limit
a
single
component.
This
emerging
platform
materials
innovation
offers
fresh
opportunities
to
tune
material
properties,
discover
interesting
phenomena,
enable
novel
applications.
In
this
review,
we
first
discuss
fundamentals
forming
with
wide
range
semiconductors,
then
give
an
overview
research
progress
halide
in
terms
their
optical,
electrical,
mechanical
focusing
on
how
heterojunction
tunes
energy
band
structure,
electrical
transport,
charge
recombination
behaviors.
We
further
outline
perovskite-based
optoelectronics.
Finally,
challenges
future
directions
for
perovskite/semiconductor
are
discussed.
Chemistry - A European Journal,
Journal Year:
2023,
Volume and Issue:
29(39)
Published: April 28, 2023
Severe
poisonousness
and
prolonged
instability
existing
in
organic-inorganic
lead-based
perovskite
are
two
matters
seriously
hindering
its
potential
future
application
photocatalysis.
Therefore,
it
is
particularly
important
to
explore
ecology-friendly,
air-stable
highly
active
metal-halide
perovskites.
Herein,
a
new
stable
lead-free
Cs2
SnBr6
decorated
with
reduced
graphene
oxide
(rGO),
synthesized
employed
the
photocatalytic
organic
conversion.
The
as-prepared
ultrastable,
exhibiting
no
clear
changes
after
being
placed
air
for
six
months.
/rGO
composite
shows
excellent
activity
photo-driven-oxidation
of
5-hydroxymethylfurfural
(HMF)
high
value
enclosed
2,5-diformylfuran
(DFF),
achieving>99.5
%
conversion
HMF
88
DFF
selectivity
presence
green
oxidant
O2
.
Comprehensive
characterizations
disclose
multistep
reaction
mechanism,
demonstrating
that
molecular
oxygen,
photogenerated
carriers,
⋅O2-
1
altogether
synergistically
participate
effective
photo-driven
DFF.
This
work
expands
material
gallery
towards
selective
environmentally
friendly
options
application.
Small,
Journal Year:
2023,
Volume and Issue:
19(23)
Published: March 8, 2023
Photoelectric
memristor
has
attracted
many
attentions
thanks
to
their
promising
potential
in
optical
communication
chips
and
artificial
vision
systems.
However,
the
implementation
of
an
visual
system
based
on
memristive
devices
remains
a
considerable
challenge
because
most
photoelectric
memristors
cannot
recognize
color.
Herein,
multi-wavelength
recognizable
silver(Ag)
nanoparticles
(NPs)
porous
silicon
oxide
(SiOx
)
nanocomposites
are
presented.
Rely
effects
localized
surface
plasmon
resonance
(LSPR)
excitation
Ag
NPs
SiOx
,
set
voltage
device
can
be
gradually
reduced.
Moreover,
current
overshoot
problem
is
alleviated
suppress
conducting
filament
overgrowth
after
visible
light
irradiation
with
different
wavelengths,
resulting
diverse
low
resistance
states
(LRS).
Taking
advantage
characteristics
controlled
switching
LRS
distribution,
color
image
recognition
finally
realized
present
work.
X-ray
photoelectron
spectroscopy
(XPS)
conductive
atomic
force
microscopy
(C-AFM)
show
that
plays
important
role
resistive
(RS)
process:
photo-assisted
ionization
leads
significant
reduction
current.
This
work
provides
effective
method
toward
development
multi-wavelength-recognizable
for
future
system.
Materials Today Electronics,
Journal Year:
2024,
Volume and Issue:
8, P. 100099 - 100099
Published: April 22, 2024
Neuromorphic
electronics
has
received
increased
attention
for
their
application
in
brain-inspired
computing
and
artificial
sensorimotor
nerves.
Metal
halide
perovskite
(MHP)
been
proved
to
be
a
candidate
material
use
optoelectronic
neuromorphic
devices.
Herein,
we
review
on
the
recent
research
progress
of
MHP
materials,
with
focus
applications
optoelectronics.
First,
materials
that
are
used
devices
especially
applications,
sequence
all-inorganic,
organic-inorganic
hybrid
lead-free
materials.
Then,
summarize
design
fabrication
two-terminal
(2-T)
three-terminal
(3-T)
synaptic
devices,
including
working
mechanisms
as
operated
by
electrical
light
inputs,
relationship
between
properties
composition
structure
functional
layers.
Finally,
these
pattern
recognition,
bionic
vision,
sensing
modulation,
experience
associative
learning,
logic
high-pass
filtering.
This
aims
could
potentially
inspire
future
field
electronics.
