ACS Biomaterials Science & Engineering,
Journal Year:
2024,
Volume and Issue:
10(3), P. 1262 - 1301
Published: Feb. 20, 2024
The
rapid
maturation
of
smart
city
ecosystems
is
intimately
linked
to
advances
in
the
Internet
Things
(IoT)
and
self-powered
sensing
technologies.
Central
this
evolution
are
battery-less
sensors
that
critical
for
applications
such
as
continuous
health
monitoring
through
blood
metabolites
vital
signs,
recognition
human
activity
behavioral
analysis,
operational
enhancement
humanoid
robots.
focus
on
biosensors
exploit
body
energy-spanning
wearable,
attachable,
implantable
variants
has
intensified,
driven
by
their
broad
applicability
areas
from
underwater
exploration
biomedical
assays
earthquake
monitoring.
heart
these
lies
diverse
energy
harvesting
mechanisms,
including
biofuel
cells,
piezoelectric,
triboelectric,
pyroelectric
nanogenerators.
Notwithstanding
wealth
research,
literature
still
lacks
a
holistic
review
integrates
design
challenges
implementation
intricacies
sensors.
Our
seeks
fill
gap
thoroughly
evaluating
strategies
both
material
structural
perspectives
assessing
roles
powering
an
array
myriad
uses.
This
offers
comprehensive
outlook
state
devices,
tackling
nuances
deployment
highlighting
potential
revolutionize
data
gathering
autonomous
systems.
intent
chart
current
landscape
future
prospects,
providing
pivotal
reference
point
ongoing
research
innovation
wireless
Scientific Reports,
Journal Year:
2025,
Volume and Issue:
15(1)
Published: Jan. 6, 2025
Abstract
In
this
study,
we
aimed
to
enhance
the
photocatalytic
performance
of
molybdenum
oxide
(MoO
3
)
thin
films
by
doping
with
silver
(Ag)
via
a
spray
pyrolysis
technique.
The
primary
objective
for
incorporation
was
intended
introduce
additional
energy
levels
into
band
structure
MoO
,
improving
its
efficiency.
Structural,
optical,
and
properties
were
analyzed
using
X-ray
diffraction
(XRD)
optical
spectroscopy.
XRD
results
confirmed
an
orthorhombic
phase
(040)
preferential
orientation
all
samples.
Optimal
crystallinity
observed
2%
Ag
doping,
yielding
84
nm
crystallite
size,
while
higher
reduced
size.
Band
gap
narrowed
from
3.07
eV
(undoped)
2.94
(2%
Ag-doped),
indicating
electronic
changes.
Impedance
spectroscopy
revealed
superior
electrical
at
4%
enhancing
charge
transport.
Photocatalytic
performance,
assessed
dye
degradation,
showed
significant
improvement
degradation
rate
peaking
Ag.
These
demonstrate
that
optimizes
structural
films,
leading
enhanced
activity.
