Molecules,
Journal Year:
2024,
Volume and Issue:
29(21), P. 5208 - 5208
Published: Nov. 4, 2024
Metal
ion
intercalation
into
van
der
Waals
gaps
of
layered
materials
is
vital
for
large-scale
electrochemical
energy
storage.
Transition-metal
sulfides,
ABS4
(where
A
and
B
represent
Zr,
Hf,
Ti
as
monolayers
anodes),
are
examined
lithium
sodium
Our
study
reveals
that
these
offer
exceptional
performance
The
low
diffusion
barriers
enable
efficient
bonding
rapid
separation
while
all
phases
remain
semiconducting
before
lithiation
transition
to
metallic
states,
ensuring
excellent
electrical
conductivity.
Notably,
the
demonstrate
impressive
capacities:
1639,
1202,
1119
mAh/g
Li-ions,
1093,
801,
671
Na-ions
in
ZrTiS4,
HfTiS4,
HfZrS4,
respectively.
Average
voltages
1.16
V,
0.9
0.94
V
Li-ions
1.17
1.02
across
materials.
Additionally,
migration
0.231
eV,
0.233
0.238
eV
Li
0.135
0.136
0.147
Na
make
highly
attractive
battery
applications.
These
findings
underscore
potential
monolayer
a
superior
electrode
material,
combining
high
adsorption
energy,
barriers,
voltage,
specific
capacity,
outstanding
RSC Advances,
Journal Year:
2024,
Volume and Issue:
14(53), P. 39727 - 39739
Published: Jan. 1, 2024
The
advantages
of
green
synthesis
include
eco-friendliness,
structural
integrity,
stability,
cost-effectiveness,
scalability,
and
safety
for
bio-electrochemical
applications.
Small Science,
Journal Year:
2025,
Volume and Issue:
5(5)
Published: Feb. 13, 2025
Localized
plasmon
resonances
in
2D
transition
metal
dichalcogenides
(TMDs)
offer
a
powerful
means
to
enhance
light–matter
interactions
at
the
nanoscale,
making
them
ideal
candidates
for
advanced
optoelectronic
applications.
However,
disentangling
complex
plasmonic
these
materials,
especially
low‐energy
regime,
presents
significant
challenges.
Herein,
localized
chemical
vapor
deposition‐grown
tungsten
disulfide
(WS
2
)
nanotriangles,
using
combination
of
spectral
analysis
and
simulation
techniques,
is
investigated.
By
combining
non‐negative
matrix
factorization
with
electron
energy
loss
spectroscopy,
distinct
modes
provide
comprehensive
landscape
individual
stacked
WS
nanotriangles
are
identified
characterized.
Furthermore,
dispersion
relation
quantified
their
evolution
across
different
triangular
geometries
evaluated.
Experimental
characterization
through
dedicated
numerical
simulations
based
on
PyGDM
package
validated.
The
findings
highlight
critical
role
modulating
electronic
optical
properties
,
offering
new
insights
into
design
optimization
TMD‐based
devices
nanophotonic
Langmuir,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 26, 2025
Monolayer
tungsten
disulfide
(ML
WS2)
exhibits
remarkable
optical
and
electrical
properties,
but
its
limited
light
absorption
hinders
application
in
next-generation
sensors
detectors.
Therefore,
it
is
vital
to
design
mixed-dimensional
heterostructure
(MDH)
interfaces
that
enhance
overall
facilitate
the
effective
transfer
of
photogenerated
carriers
simultaneously.
In
this
study,
MDHs
consisting
zero-dimensional
(0D)
single-site
single-tungsten-atom
oxides
(STAOs)
two-dimensional
(2D)
ML
WS2
were
successfully
constructed.
The
properties
have
been
comprehensively
characterized
by
using
a
series
techniques
including
absorption,
photoluminescence
(PL),
Raman
techniques.
comparison
case
WS2,
both
geometric
configurations
(WS2/STAO/SiO2
STAO/WS2/SiO2)
show
similar
results
PL
spectra:
heterostructures
enhanced,
meanwhile,
STAOs
significantly
reduce
intensity
A-exciton
while
increasing
trion-to-exciton
ratio.
These
suggest
charge
process
may
occur
between
STAO
due
formation
interactions.
order
confirm
existence
transfer,
copper
phthalocyanine
(CuPc)
has
chosen
as
target
molecules
surface-enhanced
spectroscopy
(SERS)
experiments
for
configurations.
It
interesting
see
signals
CuPc
almost
no
enhancement
sometimes
even
quenching
effect
STAO/WS2,
WS2/STAO,
they
exhibit
an
amount-dependent
exponential
trend,
with
factor
up
∼37
at
1531
cm–1
peak.
Furthermore,
Vienna
Ab
initio
Simulation
Package
(VASP)
theoretical
calculations
electrons
can
efficiently
from
which
consistent
our
experimental
results.
Our
work
demonstrates
method
tuning
2D
materials
via
single
sites,
providing
new
strategies
evidence
employing
sensitive
multifunctional
optoelectronic
devices.
