Micromachines,
Journal Year:
2025,
Volume and Issue:
16(5), P. 540 - 540
Published: April 30, 2025
Nanoplasmonic
structures
have
emerged
as
a
promising
approach
to
address
light
trapping
limitations
in
thin-film
optoelectronic
devices.
This
study
investigates
the
integration
of
metallic
nanoparticle
arrays
onto
nanocrystalline
silicon
(nc-Si:H)
thin
films
enhance
optical
absorption
through
plasmonic
effects.
Using
finite-difference
time-domain
(FDTD)
simulations,
we
systematically
optimize
key
design
parameters,
including
geometry,
spacing,
metal
type
(Ag
and
Al),
dielectric
spacer
material,
absorber
layer
thickness.
The
results
show
that
localized
surface
plasmon
resonances
(LSPRs)
significantly
amplify
near-field
intensities,
improve
forward
scattering,
facilitate
coupling
into
waveguide
modes
within
active
layer.
These
effects
lead
measurable
increase
integrated
quantum
efficiency,
with
improvements
reaching
up
30%
compared
bare
nc-Si:H
films.
findings
establish
reliable
framework
for
engineering
nanoplasmonic
architectures
can
be
applied
performance
photovoltaic
devices,
photodetectors,
other
systems.
Micromachines,
Journal Year:
2024,
Volume and Issue:
15(10), P. 1249 - 1249
Published: Oct. 11, 2024
Photodetectors
are
critical
components
in
a
wide
range
of
applications,
from
imaging
and
sensing
to
communications
environmental
monitoring.
Recent
advancements
material
science
have
led
the
development
emerging
photodetecting
materials,
such
as
perovskites,
polymers,
novel
two-dimensional
quantum
dots,
which
offer
unique
optoelectronic
properties
high
tunability.
This
review
presents
comprehensive
overview
synthesis
methodologies
for
these
cutting-edge
highlighting
their
potential
enhance
photodetection
performance.
Additionally,
we
explore
design
fabrication
photodetectors
with
structures
physics,
emphasizing
devices
that
achieve
figure-of-merit
parameters,
enhanced
sensitivity,
fast
response
times,
broad
spectral
detection.
Finally,
discuss
demonstration
new
applications
enabled
by
advanced
photodetectors,
including
flexible
wearable
devices,
next-generation
systems,
technologies.
Through
this
review,
aim
provide
insights
into
current
trends
future
directions
field
photodetection,
guiding
further
research
rapidly
evolving
area.
Langmuir,
Journal Year:
2024,
Volume and Issue:
40(44), P. 23549 - 23561
Published: Oct. 26, 2024
This
work
explores
bubble
laser
technology
as
an
alternative
to
needles
in
injection
systems
for
vaccination,
cancer
treatment,
insulin
delivery,
and
catheter
hygiene.
The
leverages
laser-induced
microfiltration
dynamics
create
high-speed
pneumatic
jets
that
penetrate
the
skin
without
needles,
addressing
discomfort,
infection
risk,
needle-related
concerns.
system's
performance
is
analyzed
based
on
wavelength,
pulse
duration,
Gaussian
beam
droplet
size.
findings
indicate
a
significant
increase
spot
size
at
1064
nm
compared
with
400
nm,
consistent
diffraction
theory.
Induced
reveal
generation,
jetting,
fluid
interactions
Weber
number
increases,
well
jet
velocity
inertia.
For
femtosecond
pulses,
increasing
duration
from
100
1500
fs
reduces
lifespan
0.8
0.3
arbitrary
units,
collapse
pressure
decreases
2.1
0.4
bar.
picosecond
lifetime
0.9
0.5
drop
2.0
bar
length
extends
2000
8000
ps.
Jet
formation
enhanced
by
short
pulses
water
produce
longer-lasting
bubbles.
Drug
delivery
Rayleigh-Plesset
equation
characterized
low-pressure
lifetime.
Thus,
this
relationship
suggests
can
provide
more
controlled
safer
method
of
needle-free
procedures,
compliance
reducing
tissue
trauma.
