Chemosensors,
Год журнала:
2024,
Номер
12(9), С. 179 - 179
Опубликована: Сен. 4, 2024
Benzene,
as
a
typical
toxic
gas
and
carcinogen,
is
an
important
detection
object
in
the
field
of
environmental
monitoring.
However,
it
remains
challenging
for
conventional
resistance-type
sensor
to
effectively
detect
low-concentration
(ppb-level)
benzene
molecules,
owing
their
insufficient
reaction
activation
energy,
especially
when
operating
at
room
temperature.
Herein,
field-effect
transistor
(FET)-type
using
carbon
nanotubes
channel
material
proposed
efficient
trace
benzene,
where
(CNTs)
with
high
semiconductor
purity
act
main
material,
ZnO/WS2
nanocomposites
serve
gate
sensitive
material.
On
basis
remarkable
amplification
effect
CNTs-based
FET,
manifests
desirable
ability
limit
low
500
ppb
even
working
temperature,
also
exhibits
fast
response
speed
(90
s),
consistency
deviation
less
than
5%,
long-term
stability
up
30
days.
Furthermore,
utilizing
Tenax
TA
screening
unit,
as-proposed
can
achieve
feasible
selective
benzene.
These
experimental
results
demonstrate
that
strategy
here
provide
significant
guidance
development
high-performance
sensors
Nano-Micro Letters,
Год журнала:
2025,
Номер
17(1)
Опубликована: Май 3, 2025
Abstract
Over
recent
decades,
carbon-based
chemical
sensor
technologies
have
advanced
significantly.
Nevertheless,
significant
opportunities
persist
for
enhancing
analyte
recognition
capabilities,
particularly
in
complex
environments.
Conventional
monovariable
sensors
exhibit
inherent
limitations,
such
as
susceptibility
to
interference
from
coexisting
analytes,
which
results
response
overlap.
Although
arrays,
through
modification
of
multiple
sensing
materials,
offer
a
potential
solution
recognition,
their
practical
applications
are
constrained
by
intricate
material
processes.
In
this
context,
multivariable
emerged
promising
alternative,
enabling
the
generation
outputs
construct
comprehensive
space
while
utilizing
single
material.
Among
various
carbon
nanotubes
(CNTs)
and
graphene
ideal
candidates
constructing
high-performance
sensors,
owing
well-established
batch
fabrication
processes,
superior
electrical
properties,
outstanding
capabilities.
This
review
examines
progress
focusing
on
CNTs/graphene
materials
field-effect
transistors
transducers
recognition.
The
discussion
encompasses
fundamental
aspects
these
including
architectures,
performance
metrics,
pattern
algorithms,
mechanism.
Furthermore,
highlights
innovative
extraction
schemes
when
integrated
with
algorithms.
Chemosensors,
Год журнала:
2024,
Номер
12(9), С. 179 - 179
Опубликована: Сен. 4, 2024
Benzene,
as
a
typical
toxic
gas
and
carcinogen,
is
an
important
detection
object
in
the
field
of
environmental
monitoring.
However,
it
remains
challenging
for
conventional
resistance-type
sensor
to
effectively
detect
low-concentration
(ppb-level)
benzene
molecules,
owing
their
insufficient
reaction
activation
energy,
especially
when
operating
at
room
temperature.
Herein,
field-effect
transistor
(FET)-type
using
carbon
nanotubes
channel
material
proposed
efficient
trace
benzene,
where
(CNTs)
with
high
semiconductor
purity
act
main
material,
ZnO/WS2
nanocomposites
serve
gate
sensitive
material.
On
basis
remarkable
amplification
effect
CNTs-based
FET,
manifests
desirable
ability
limit
low
500
ppb
even
working
temperature,
also
exhibits
fast
response
speed
(90
s),
consistency
deviation
less
than
5%,
long-term
stability
up
30
days.
Furthermore,
utilizing
Tenax
TA
screening
unit,
as-proposed
can
achieve
feasible
selective
benzene.
These
experimental
results
demonstrate
that
strategy
here
provide
significant
guidance
development
high-performance
sensors
