ACS Omega,
Journal Year:
2024,
Volume and Issue:
9(48), P. 47506 - 47518
Published: Nov. 20, 2024
We
investigate
a
method
for
fabricating
layers
that
exhibit
both
high
optical
absorption
and
promising
thermoelectric
properties.
Using
plasma-enhanced
chemical
vapor
deposition
(PECVD),
amorphous
Si
Si72Ge28
are
deposited
on
glass
substrates
subsequently
processed
via
laser
annealing
to
achieve
nanostructured
layers.
Our
results
show
single
pulse
at
40
mJ
yields
the
highest
power
factor,
approximately
90
μW/m·K2.
Additionally,
we
observe
maximum
absorbance
enhancement
factor
of
60
times
in
spectral
region
near
880
nm
samples
treated
with
compared
untreated
samples.
The
effects
energy,
number
pulses,
material
choice
further
discussed.
Polymers for Advanced Technologies,
Journal Year:
2025,
Volume and Issue:
36(4)
Published: April 1, 2025
ABSTRACT
The
growing
demand
for
self‐powered
wearable
electronic
devices
in
healthcare,
fitness,
and
entertainment
has
driven
significant
advancements
energy
harvesting
technologies.
This
review
explores
the
latest
progress
mechanisms
that
enable
sustainable
autonomous
devices,
with
a
particular
emphasis
on
role
of
polymers
their
development.
Polymers
offer
unique
combination
mechanical
flexibility,
biocompatibility,
lightweight
properties,
making
them
ideal
applications.
systematically
categorizes
major
technologies
into
three
primary
mechanisms:
thermoelectric
generators
(TEGs),
piezoelectric
harvesters
(PEHs),
triboelectric
nanogenerators
(TENGs).
Each
section
provides
an
in‐depth
discussion
working
principles,
material
innovations,
fabrication
techniques,
applications
these
systems.
Beyond
fundamental
mechanisms,
discusses
hybrid
systems
integrate
multiple
sources
to
maximize
power
generation
ensure
continuous
device
operation.
storage
technologies,
such
as
flexible
supercapacitors
micro‐batteries,
is
also
highlighted
address
intermittency
challenges
ambient
sources.
Despite
progress,
remain
improving
conversion
efficiency,
enhancing
durability,
optimizing
system
integration
real‐world
identifies
key
research
directions
overcoming
challenges,
including
advanced
materials
engineering,
miniaturization
artificial
intelligence‐driven
management
strategies.
findings
presented
this
provide
valuable
insights
development
next‐generation
paving
way
efficient
electronics
seamlessly
daily
life.
Enhancing
spectral
efficiency,
especially
in
Non-line-of-Sight
environments,
is
emerging
as
a
pivotal
necessity
when
dealing
with
the
evolving
landscape
of
5G
networks
and
beyond,
sur-passing
capabilities
previous
4G
systems
to
achieve
high
information
rate
combined
minimal
interference.
Contrary
depending
on
traditional
Orthogonal
Multiple
Access
(OMA)
tackle
issues
caused
by
(NLoS)
advanced
wireless
are
focusing
adopting
innovative
models
such
Non-Orthogonal
(NOMA),
MIMO,
IRS
technology,
etc.
In
this
paper,
we
present
technologies
that
can
be
integrated
NOMA
enhance
communication
reliability
environments
suffer
from
limited
coverage
lower
efficiency
mainly
huge
obstacles.
Our
exploration
includes
fundamental
concepts
Cooperative
(C-NOMA),
Input
Output
(MIMO),
Intelligent
Reflective
Surfaces
(IRS),
Unmanned
Aerial
Vehicles
(UAVs),
Energy
Harvesting
(HV),
which
adds
layer
sophistication,
promising
not
only
improved
connectivity
but
also
contributing
more
reliable
environmentally
friendly
data
trans-mission
landscape.
Sensors,
Journal Year:
2024,
Volume and Issue:
24(14), P. 4671 - 4671
Published: July 18, 2024
Enhancing
spectral
efficiency
in
non-line-of-sight
(NLoS)
environments
is
essential
as
5G
networks
evolve,
surpassing
4G
systems
with
high
information
rates
and
minimal
interference.
Instead
of
relying
on
traditional
Orthogonal
Multiple
Access
(OMA)
to
tackle
issues
caused
by
NLoS,
advanced
wireless
adopt
innovative
models
like
Non-Orthogonal
(NOMA),
cooperative
relaying,
Input
Output
(MIMO),
intelligent
reflective
surfaces
(IRSs).
Therefore,
this
study
comprehensively
analyzes
these
techniques
for
their
potential
improve
communication
reliability
NLoS
scenarios.
Specifically,
it
encompasses
an
analysis
relaying
strategies
through
user
cooperation.
It
also
examines
various
MIMO
configurations
address
challenges
via
spatial
diversity.
Additionally,
investigates
IRS
settings,
which
can
alter
signal
paths
enhance
coverage
reduce
interference
analyze
the
role
Unmanned
Aerial
Vehicles
(UAVs)
establishing
flexible
infrastructure
difficult
environments.
This
paper
surveys
effective
energy
harvesting
(EH)
that
be
integrated
NOMA
efficient
reliable
energy-communication
networks.
Our
findings
show
incorporating
technologies
not
only
enhances
connectivity
but
promotes
a
stable
environmentally
sustainable
data
system.
Processes,
Journal Year:
2024,
Volume and Issue:
12(9), P. 1964 - 1964
Published: Sept. 12, 2024
Renewable
energy
is
the
best
choice
for
clean
and
sustainable
development.
A
single
renewable
system
reveals
an
intermittent
disadvantage
during
production
process
due
to
effects
of
weather,
season,
day/night,
working
environment.
generally
hybrid
(HRES)
scheme
that
built
based
on
a
combination
two
or
more
sources
(such
as
solar
energy,
wind
power,
hydropower,
thermal
ocean
energy)
produce
electrical
consumption,
storage,
power
transmission
line.
HRESs
feature
outstanding
characteristics
enhancing
conversion
efficiency
reducing
fluctuations
process.
Triboelectric
nanogenerator
(TENG)
technology
transduces
wasted
mechanical
energies
into
energy.
The
TENG
can
harvest
wind,
water
flow,
electricity
with
ability
be
integrated
HRES
high
in
production.
This
article
reviews
recent
techniques
methods
using
triboelectric
nanogenerators
(TENGs)
advanced
systems
improvements
harvesting
production,
practical
applications.
paper
mentions
benefits,
challenges,
specific
solutions
related
development
utilization
HRESs.
results
show
highly
potential
source
integration,
application,
are
useful
reference
developing
models
applications
robust
near
future.
ACS Omega,
Journal Year:
2024,
Volume and Issue:
9(48), P. 47506 - 47518
Published: Nov. 20, 2024
We
investigate
a
method
for
fabricating
layers
that
exhibit
both
high
optical
absorption
and
promising
thermoelectric
properties.
Using
plasma-enhanced
chemical
vapor
deposition
(PECVD),
amorphous
Si
Si72Ge28
are
deposited
on
glass
substrates
subsequently
processed
via
laser
annealing
to
achieve
nanostructured
layers.
Our
results
show
single
pulse
at
40
mJ
yields
the
highest
power
factor,
approximately
90
μW/m·K2.
Additionally,
we
observe
maximum
absorbance
enhancement
factor
of
60
times
in
spectral
region
near
880
nm
samples
treated
with
compared
untreated
samples.
The
effects
energy,
number
pulses,
material
choice
further
discussed.
