Journal of Materials Science Materials in Electronics,
Journal Year:
2023,
Volume and Issue:
34(36)
Published: Dec. 1, 2023
Abstract
Herein,
PVA:
PVP@Ni(OAc)
2
nanocomposite
spin-coated
thin
films
have
been
fabricated
as
a
barrier
modifier
interlayer
in
metal/polymer/semiconductor
configuration
for
light
detection
applications.
The
nanostructure,
well
the
surface
roughness
profile
of
deposited
films,
inspected
using
high-resolution
transmission
electron
microscope
(HR-TEM)
and
field
emission
scan
(FE-SEM).
obtained
results
showed
nanoplatelet
architecture
with
smooth
surfaces
average
~
7.08
nm.
optical
absorption,
reflection,
spectra
analyzed
value
film’s
energy
gap
has
confirmed
several
analytical
approaches.
Furthermore,
DC
electrical
properties
Ag/Si
(n-type
p
-type),
Ag/polymer
nanocomposite/Si
(
n
-type
investigated
under
dark
conditions.
microelectronic
estimated
thermionic
emission,
Norde’s,
Cheung-Cheung’s
models.
Besides,
mechanistic
details
charge
transport
explored
forward
reverse
bias
photoresponsive
features
designed
Ag/
PVA/PVP@Ni(OAc)
/p-Si
junction
evaluated
different
illumination
intensities.
current
device
achieved
superior
photodetection
capability
high
responsivity,
detectivity,
fast
switching
behavior.
Journal of Inorganic and Organometallic Polymers and Materials,
Journal Year:
2023,
Volume and Issue:
33(10), P. 3195 - 3207
Published: June 16, 2023
Abstract
PVA/PVP
films
doped
with
zinc
sulphate
heptahydrate
(ZnSO
4
·7H
2
O)
nanoparticles
(NPs)
are
prepared
using
an
in
situ
chemical
method.
Furthermore,
as-prepared
samples
irradiated
electron
beam
at
doses
of
20,
25,
30,
35,
and
40
kGy.
Elemental
analyses
energy
dispersive
X-ray
spectroscopy
(EDXS)
the
fresh
showed
existence
both
oxide
sulphide
as
main
minor
phases
sequence.
Moreover,
scanning
microscope
measurements
(SEM)
revealed
that
embedded
Zn
NPs
have
regular
evenly
distributed
pores
inside
network.
On
other
hand,
structural
variations
due
to
e-beam
irradiation
monitored
by
a
high-resolution-transmission
(HR-TEM),
which
displayed
encapsulated
well
dispersed
capped
The
measured
optical
absorption
coefficient
(α)
PVA/PVP/zinc
nanocomposite
increase
against
dose.
calculated
gap,
E
g
,
exhibited
reduction
from
3.31
2.82
eV
Evaluated
values
wavelength
zero
material
dispersion
(WZMD)
indicated
can
tune
structure
studied
be
used
data
transmitter
fiber
telecommunication
IR
spectral
range
1.6842–1.0351
μm.
ECS Journal of Solid State Science and Technology,
Journal Year:
2024,
Volume and Issue:
13(9), P. 093006 - 093006
Published: Sept. 2, 2024
The
PVA/PVP/TiO
2
films
were
prepared
using
different
TiO
concentrations
by
solvent
casting
technique.
An
analysis
was
conducted
to
investigate
the
influence
of
on
characteristics
PVA/PVP
blends.
FTIR,
UV/visible
spectroscopy,
and
electrical
bridge
circuits
used
characterize
nanocomposite
films.
structural
changes
relative
pure
are
indicated
FTIR
spectra.
optical
studies
demonstrate
that
increasing
concentration
inside
blends,
band
gaps
reduce
from
5.40
eV
for
4.20
(10
wt%),
also
refractive
indices
nanocomposites
increase
1.2020
blend
into
2.5380
wt%).
Also,
transmittance
decreased
97.6%
approximately
55.4%
at
largest
.
Additionally,
parameters,
as
well,
ac
conductivity
(
σ
).
outcomes
dielectric
parameters
enhanced
doping
with
relaxation
is
observed.
hopping
mechanism
supported
conductivity.
It
found
adding
10
wt%
matrix
5
MHz
increases
4.46
times.
