Eurasian Physical Technical Journal,
Journal Year:
2023,
Volume and Issue:
20(4 (46)), P. 111 - 115
Published: Dec. 19, 2023
The
article
is
devoted
to
a
current
topic
in
science
and
technology
-determining
the
type
concentration
of
gas
using
laser.
At
close
values
green
laser
radiation
intensity
bias
voltage,
interference
patterns
time
series
photodiode
output
signal
were
obtained.
degree
coherence
(more
than
~0.1)
made
it
possible
distinguish
between
types
gases
their
concentrations.
Signal
was
controlled
by
Allan
deviation
values.The
novelty
research
method
choice
harmonic
electrical
network
asthe
main
modulation
frequency.
It
shown
that
correlation
functions
corresponding
power
spectra
are
sensitive
low-frequency
fluctuations
molecules
clumps.
This
allows
results
methods
this
work
be
used
specific
cases
instead
large-sized
expensive
complexes
optical
instruments
at
room
pressure
temperature.
Advanced Science,
Journal Year:
2023,
Volume and Issue:
10(30)
Published: Aug. 31, 2023
Artificial
olfactory
systems
(AOSs)
that
mimic
biological
are
of
great
interest.
However,
most
existing
AOSs
suffer
from
high
energy
consumption
levels
and
latency
issues
due
to
data
conversion
transmission.
In
this
work,
an
energy-
area-efficient
AOS
based
on
near-sensor
computing
is
proposed.
The
efficiently
integrates
array
sensing
units
(merged
field
effect
transistor
(FET)-type
gas
sensors
amplifier
circuits)
AND-type
nonvolatile
memory
(NVM)
array.
signals
the
directly
connected
NVM
computed
in
memory,
meaningful
linear
combinations
output
as
bit
line
currents.
designed
detect
food
spoilage
by
employing
thin
zinc
oxide
films
gas-sensing
materials,
it
exhibits
low
detection
limits
for
H
Chemosensors,
Journal Year:
2025,
Volume and Issue:
13(4), P. 150 - 150
Published: April 19, 2025
The
detection
of
hydrogen
gas
is
crucial
for
both
industrial
fields,
as
a
green
energy
carrier,
and
biomedical
applications,
where
it
biomarker
diagnosis.
TiO2
nanomaterials
are
stable
sensitive
to
gas,
but
their
response
can
be
negatively
affected
by
external
factors
such
humidity.
Therefore,
strategy
required
mitigate
these
influences.
utilization
organic–inorganic
hybrid
sensors,
specifically
metal
oxide
sensors
coated
with
ultra-thin
copolymer
films,
relatively
novel
approach
in
this
field.
In
study,
we
examined
the
performance
long-term
stability
TiO2-based
that
were
poly(trivinyltrimethylcyclotrisiloxane-co-tetrafluoroethylene)
(P(V3D3-co-TFE))
co-polymers.
P(V3D3-co-TFE)/TiO2
exhibit
high
reliability
even
more
than
427
days.
They
excellent
selectivity,
particularly
environments
An
optimum
operating
temperature
300
°C
350
was
determined.
highest
recorded
H2
approximately
153%
during
initial
set
measurements
at
relative
humidity
10%.
developed
structures
open
wide
opportunities
sensor
tuning
customization,
paving
way
innovative
applications
industry
exhaled
breath
analysis,
etc.
Micromachines,
Journal Year:
2024,
Volume and Issue:
15(6), P. 808 - 808
Published: June 20, 2024
Creatures
in
nature
make
extensive
use
of
structural
color
adaptive
camouflage
to
survive.
Cholesteric
liquid
crystals,
with
nanostructures
similar
those
natural
organisms,
can
be
combined
actuators
produce
bright
colors
response
a
wide
range
stimuli.
Structural
modulated
by
nano-helical
structures
continuously
and
selectively
reflect
specific
wavelengths
light,
breaking
the
limit
recognizable
human
eye.
In
this
review,
current
state
research
on
cholesteric
crystal
photonic
their
technological
applications
is
presented.
First,
basic
concepts
crystals
nanostructural
modulation
are
outlined.
Then,
responding
different
stimuli
(mechanical,
thermal,
electrical,
humidity,
magnetic,
pneumatic)
This
review
describes
practical
summarizes
prospects
for
development
these
advanced
as
well
challenges
promising
applications.
Advanced Electronic Materials,
Journal Year:
2023,
Volume and Issue:
10(2)
Published: Dec. 17, 2023
Abstract
The
presence
of
low‐frequency
noise
(LFN)
in
amorphous
oxide
semiconductor
(AOS)
thin‐film
transistors
(TFTs)
is
utmost
concern,
prompting
extensive
investigations
into
the
analysis
LFN.
However,
prior
research
endeavors
have
tended
to
overlook
significance
sub‐gap
density
states
(DOS)
LFN
analysis,
resulting
an
incomplete
comprehension.
To
bridge
this
knowledge
gap,
influence
DOS
demonstrated
on
Si‐doped
ZnSnO
(SZTO)
under
various
conditions.
SZTO
TFTs
intentionally
subjected
positive
bias
stress
and
hot
carrier
order
control
investigate
how
change
affects
characteristics.
It
revealed
that
non‐uniform
energetic
distribution
induces
bias‐dependent
excess
TFTs.
Additionally,
self‐recovery
behavior
after
HCS
observed,
accompanied
by
a
commensurate
reduction
1/
f
noise.
These
empirical
observations
provide
evidence
conventional
correlated
mobility
fluctuation
model
used
explain
AOS
insufficient
underscores
critical
importance
considering
subgap
when
analyzing
Sensors,
Journal Year:
2024,
Volume and Issue:
24(2), P. 405 - 405
Published: Jan. 9, 2024
We
discuss
the
implementation
challenges
of
gas
sensing
systems
based
on
low-frequency
noise
measurements
chemoresistive
sensors.
Resistance
fluctuations
in
various
materials,
a
frequency
range
typically
up
to
few
kHz,
can
enhance
by
considering
its
intensity
and
slope
power
spectral
density.
The
issues
resistive
sensors,
specifically
two-dimensional
materials
exhibiting
gas-sensing
properties,
are
considered.
present
measurement
setups
noise-processing
methods
for
detection.
sensors
show
DC
resistances
requiring
different
flicker
approaches.
Separate
used
hundred
kΩ
with
much
higher
values.
Noise
highly
(e.g.,
MoS2,
WS2,
ZrS3)
prone
external
interferences
but
be
modulated
using
temperature
or
light
irradiation
enhanced
sensing.
Therefore,
such
considerable
interest
