Small,
Journal Year:
2024,
Volume and Issue:
20(45)
Published: July 29, 2024
Spiral
inorganic
perovskite
nanowires
(NWs)
possess
unique
morphologies
and
properties
that
allow
them
highly
attractive
for
applications
in
optoelectronic
catalytic
fields.
In
popular
solution-based
synthesis
methodology,
however,
challenges
persist
simultaneously
achieving
precise
facile
control
over
morphological
twisting
fantastic
carrier
lifetimes.
Here,
a
cooperative
strategy
of
concurrently
employing
selective
etching
ligand
engineering
is
applied
to
facilitate
the
formation
spiral
CsPbBr
Chemical Synthesis,
Journal Year:
2025,
Volume and Issue:
5(1)
Published: Feb. 8, 2025
The
conversion
of
toluene
into
high-value
products
without
generating
undesired
CO2
remains
a
critical
challenge.
Selective
oxidation
under
visible
light
irradiation
has
emerged
as
promising
solution.
This
review
offers
comprehensive
interpretation
photocatalytic
transformations
in
heterogeneous
oxidation.
We
start
by
outlining
the
basic
mechanism
C–H
bond
activation
and
provide
an
overview
reactive
oxygen
species
(ROS)
within
systems.
Subsequently,
we
summary
strategies
that
have
been
developed
to
enhance
selectivity
system.
Following
this,
advanced
characterization
techniques
density
functional
theory
(DFT)
calculations
are
discussed
for
understanding
structure-performance
relationship
photocatalysts
mechanisms
underlying
processes.
Finally,
put
forward
detailed
discussion
current
challenges
potential
directions
future
research,
with
aim
offering
valuable
insights
this
emerging
field.
believe
will
not
only
spark
greater
creativity
optimizing
but
also
offer
designing
other
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: May 5, 2025
Abstract
Although
memristor‐based
in‐memory
computing
(IMC)
prototypes
demonstrate
great
progress
and
performance,
integrating
high
flexibility
programmability
into
large‐scale,
high‐density
crossbar
arrays
remain
a
major
hurdle
for
advanced
systems.
Herein,
the
execution
of
12
distinct
algorithms
is
successfully
implemented
in
single
halide
perovskite
based
IMC,
leading
to
construction
memory
with
reconfigurable
logic
operation
capabilities.
Moreover,
device
exhibits
robust
anti‐crosstalk
paving
way
its
potential
application
integrated
arrays.
The
work
differs
from
common
resistive
switching,
which
needs
electro‐forming
shift
high‐resistance
state
(HRS)
low‐resistance
(LRS).
Instead,
it
begins
LRS
driven
by
ionic
conduction,
switching
controlled
reversible
barriers
due
ion
migration
accumulation,
enabling
voltage
magnitude
polarity
independently
regulate
various
behaviors.
Additionally,
mappings
between
environmental
parameters
behavioral
patterns
are
systematically
established,
providing
an
approach
adapting
architectures
evolving
conditions.
This
1R‐IMC
provides
self‐rectification
multiple
functions,
vital
flexible,
programmable
computing.
Angewandte Chemie,
Journal Year:
2024,
Volume and Issue:
136(43)
Published: July 18, 2024
Abstract
Two‐dimensional
organic–inorganic
hybrid
perovskites
(OIHPs)
with
alternating
structure
of
the
organic
and
inorganic
layers
have
a
natural
quantum
well
structure.
The
difference
dielectric
constants
between
in
this
results
enhancement
confinement
effect,
which
exhibits
large
exciton
binding
energy
hinders
separation
electron‐hole
pairs.
Herein,
strategy
to
reduce
effect
by
narrowing
amine
molecule
[PbBr
6
]
4−
octahedron
is
put
forward.
Ethanolamine
(EOA)
contains
hydroxyl
groups,
resulting
positive
negative
charge
centers
O
H
non‐overlapping,
generated
larger
polarity
constant.
reduced
constant
produces
smaller
(71.03
meV)
(C
2
7
NO)
PbBr
4
((EOA)
)
than
8
11
N)
((PEA)
(156.07
meV),
promotes
dissociation
electrons
holes.
increasing
lifetime
photogenerated
carrier
are
proved
femtosecond
transient
absorption
spectra.
Density
functional
theory
(DFT)
calculations
also
indicated
that
small
shift
total
density
states
(DOS)
C/H/N
Pb/Br
favors
In
addition,
work
demonstrates
application
(PEA)
field
photocatalytic
CO
reduction.
Advanced Optical Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Aug. 31, 2024
Abstract
The
ligand
passivation
is
considered
an
attractive
strategy
to
prepare
high‐quality
perovskite
nanocrystals
(PNCs)
with
improved
photophysical
features
in
polar
media.
However,
the
long‐term
stabilization
of
PNCs
these
environments
still
challenging,
being
pivotal
understanding
protection
mechanism
given
by
prominent
surface
ligands
and
avoiding
material
deterioration
solvents.
In
this
work,
how
nature
diverse
alkylammonium
bromides
used
during
influences
properties
quality
CsPbX
3
fully
dispersed
alcohol
environments,
exhibiting
stability
up
10
months
are
investigated.
By
adding
didodecyldimethylammonium
benzyldodecyldimethylammonium
tetrabutylammonium
(DDAB,
BDAB,
TBAB,
respectively),
DDAB
BDAB
promote
a
suitable
partial
coverage
observed,
respectively,
suppressing
defect
sites
nanocrystals.
Conversely,
TBAB
shows
poor
protection,
decreasing
PL
PNCs.
presence
favors
fabrication
color
converters,
efficient
light‐emitting
diodes
(LEDs)
external
quantum
efficiencies
(EQE)
≈23%.
Interestingly,
significant
device
capping
LED
half‐life
20‐fold
longer
than
for
DDAB.
This
contribution
offers
promising
approach
preparing
highly
luminescent
stable
alcohol‐dispersed
PNCs,
useful
fabricating
optoelectronic
devices.
