Herein
thin-film
titanium
nanocolumnar
arrays
(TiNCs)
were
grown
by
applying
an
advanced
physical
vapor
deposition
(PVD)
method,
magnetron
sputtering
at
oblique
angles.
This
technique
is
applied
for
the
first
time
on
a
graphene
monolayer
(Gm)
Cu
foil
(Cufoil)
substrate.
Ti
nanocolumns
developed
all
over
substrate,
with
different
morphologies
depending
characteristics
of
each
zone
When
stripes
substrate
almost
aligned
direction
atomic
flux
well-distributed
and
homogeneous
ca
200nm
length,
developed.
In
regions
where
perpendicular
to
incoming
flux,
only
formed
tallest
features.
According
electrochemical
tests,
TiNCs/Gm-Cufoil
electrode
presented
wide
linear
range
from
10
400
μM
dopamine,
low
detection
limit
8.5
μΜ,
sensitivity
value
0.21
μΑμΜ-1cm-2,
high
stability
good
selectivity
dopamine
molecule.
Furthermore,
after
30
days
storage,
results
indicated
that
had
respectable
long-term
stability.
ACS Photonics,
Год журнала:
2024,
Номер
11(6), С. 2430 - 2438
Опубликована: Май 13, 2024
The
development
of
colored
electrodes
has
significant
implications
for
various
applications,
offering
an
enhanced
blend
aesthetics
and
functionality
across
multiple
fields.
Traditional
approaches
to
achieving
this,
such
as
altering
material
composition,
modifying
carrier
density,
applying
surface
treatments
or
micro-nano
structures,
face
challenges
in
terms
complexity
manufacturing
costs.
This
study
introduces
innovative,
high-conductivity
electrode
design
capable
flexibly
controlling
the
reflective
spectra.
We
have
successfully
fabricated
flexible
devices
characterized
by
high
brightness
saturation
through
a
room-temperature
preparation
process,
exhibiting
remarkably
low
electrical
resistance
approximately
300
mΩ/sq.
construction
asymmetrical
Fabry–Perot
resonance
cavity,
composed
four-layer
compact
film
stack,
enables
enhancement
suppression
specific
light
wavelengths,
facilitating
efficient
spectral
filtering
with
conductive
dielectric
metals.
Moreover,
exhibits
remarkable
bending
properties,
maintaining
conductivity
color
integrity
even
after
5000
cycles
at
curvatures
(up
90
m–1),
feature
attributed
its
ultrathin
structure
(<600
nm).
Our
findings
showcase
electrode's
potential
wide
range
electronic
optical
including
electromagnetic
shielding/camouflage
photovoltaic
devices,
demonstrated
our
research.
