Optical and Quantum Electronics,
Год журнала:
2024,
Номер
56(10)
Опубликована: Окт. 9, 2024
Abstract
This
paper
investigates
the
effect
of
incorporating
a
single-walled
carbon
nanotubes
(SWCNTs)
layer
into
perovskite
solar
cell
(PSC)
structure
as
an
effective
technique
to
boost
energy
harvesting.
The
proposed
PSC
utilizes
SWCNTs
underneath
CH
3
NH
PbI
absorbing
forming
novel
design
(ITO/SnO
2
/CH
/SWCNTs/NiO
x
/C)
half
tandem
structure.
suggested
is
numerically
analyzed
using
finite
element
method
(FEM).
effects
varying
thickness
and
doping
concentration
added
material
rear
electrode
are
investigated
maximize
power
conversion
efficiency
(PCE)
PSC.
Results
3D
opto-electrical
study
bandgap
analysis
confirm
that
utilizing
680
nm
with
1.1
×
10
20
cm
-3
beneath
150
enhances
PCE
short
circuit
current
density
(J
SC
)
$$25.6\%$$
25.6%
$$31.201
mA/{cm}^{2}$$
31.201mA/cm2
,
respectively
due
improving
absorption
by
$$27.65\%$$
27.65
.
Higher
performance
has
been
achieved
gold
(Au)
instead
(C)
one,
causing
total
enhancement
J
$$6.185\%$$
6.185
$$9.18\;mA/cm^{2}$$
9.18c
over
their
values
for
/P3HT/NiO
reported
in
previously
published
literature.
can
be
considered
efficient
alternative
conventional
owing
its
higher
reduced
toxicity.
Materials,
Год журнала:
2024,
Номер
17(5), С. 1196 - 1196
Опубликована: Март 4, 2024
Photonic
crystals
are
artificial
structures
with
a
spatial
periodicity
of
dielectric
permittivity
on
the
wavelength
scale.
This
feature
results
in
spectral
region
over
which
no
light
can
propagate
within
such
material,
known
as
photonic
band
gap
(PBG).
It
leads
to
unique
interaction
between
and
matter.
A
crystal
redirect,
concentrate,
or
even
trap
incident
light.
Different
materials
(dielectrics,
semiconductors,
metals,
polymers,
etc.)
1D,
2D,
3D
architectures
(layers,
inverse
opal,
woodpile,
enable
great
flexibility
designing
optical
response
material.
opens
an
extensive
range
applications,
including
photovoltaics.
be
used
anti-reflective
light-trapping
surfaces,
back
reflectors,
spectrum
splitters,
absorption
enhancers,
radiation
coolers,
electron
transport
layers.
paper
presents
overview
developments
trends
for
different
photovoltaic
applications.
Abstract
The
power
conversion
efficiency
(PCE)
of
the
perovskite
solar
cell
(PSC)
is
constrained
by
Shockley–Queisser
(S–Q)
limit.
To
exceed
this
limit,
one
promising
method
integrating
light‐trapping
structures
into
PSCs
to
improve
interaction
between
incident
light
and
active
layer.
Herein,
impact
grating
on
systematically
investigated
from
three
aspects,
including
field
simulation,
experimental
verification,
performance
analysis.
simulation
results
demonstrate
that
structure
modifies
propagation
path,
thereby
optimizing
spatial
distribution
optical
within
This
modification
significantly
enhances
photons,
leading
improved
absorption.
Experimental
validation
confirms
enhance
absorption
PSCs,
increasing
short‐circuit
current
density
23.89
25.38
mA
cm
−2
improving
PCE
22.45%
24.63%.
Furthermore,
imprinting
process
promotes
homogeneous
crystal
growth,
improves
film
crystallization,
reduces
defect
film.
Overall,
work
highlights
enormous
potential
in
enhancing
ultrathin
PSC
(PVK
under
500
nm)
decreasing
cost
simultaneously,
which
provides
a
way
for
commercialization
efficient
stable
PSCs.
Over
the
past
decade,
perovskite
solar
cells
(PSCs)
have
witnessed
a
remarkable
surge
in
power
conversion
efficiency
(
PCE
).
However,
electrical
output
performance
of
PSCs
is
dependent
on
incident
angle
radiation,
and
energy
loss
occurs
during
photovoltaic
when
light
impinges
at
angles.
Herein,
perovskite‐light‐absorbed
layer
with
inverse
opal
structure
used
to
fabricate
reduce
angular
dependence
performance.
In
results,
it
demonstrated
that
ordered
periodic
(PVSK–IO)
not
only
exhibits
slow‐photon
effect
for
enhancing
absorption
sunlight
near
photonic
bandgap
(PBG),
but
also
promotes
carrier
transfer
by
expanding
contact
area
hole‐transport
layer.
Moreover,
region
PBG
can
be
intentionally
tuned
changing
direction
illumination,
thereby
more
intuitively
delaying
storing
PVSK–IO
As
consequence,
originated
from
efficiently
improves
short‐circuit
current
density,
resulting
higher
than
planar
devices
under
irradiation
different
this
research,
rational
strategy
offered
while
alleviating
their
dependence.
Physica Scripta,
Год журнала:
2024,
Номер
99(8), С. 085505 - 085505
Опубликована: Июль 2, 2024
Abstract
Ultrathin
photovoltaic
technology
has
great
potential
to
improve
efficiency
and
reduce
costs.
However,
achieving
optical
thickness
requires
an
effective
light
capture
strategy.
In
this
study,
for
GaAs
thin
film
solar
cells
with
active
layer
of
500
nm,
we
adopt
a
combination
strategy
front-end
ITO/Ag/ITO
transparent
electrodes
back-end
photonic
crystals
(PC).
By
employing
the
finite
difference
time
domain
(FDTD)
simulation,
verify
that
AlGaAs
PC
can
effectively
enhance
light-harvesting
capacity
cells.
The
proposed
cell
structure
spectral
absorption
rate
(SAR)
0.9781
in
visible
wavelength
range.
To
further
optimize
performance
parameters,
doping
concentration
pn
junction
cell.
Finally,
short
circuit
current
density
Jsc,
open
voltage
Vo
fill
factor
(FF)
photoelectric
conversion
(PCE)
are
successfully
increased
31.10mA
mathvariant="normal">cm
−21.28
88.18%
35.12%,
respectively.
This
provides
crucial
experimental
validation
theoretical
guidance
advancing
ultra-thin
technology.
Physica Scripta,
Год журнала:
2024,
Номер
99(10), С. 105554 - 105554
Опубликована: Сен. 6, 2024
Abstract
This
research
work
represents
a
comparative
study
of
the
structural,
optical,
and
electronic
properties
Cs
2
TiX
6
single
halide
perovskite
solar
cell
(PSC).
The
entire
has
been
carried
out
by
experimental
under
ambient
conditions
followed
DFT
method.
Absorbing
material
structural
parameters
(lattice
constant,
shape),
band
gap
energy
can
be
easily
estimated
from
approach
which
compared
with
result
work.
Our
shows
TiBr
PSC
better
1.80
eV
(numerically)
1.82
(experimentally),
open
circuit
voltage
0.58
V,
short
current
2.55
mA
cm
−2
for
photovoltaic
application.
Also,
higher
Zeta
potential
value
indicates
that
it
stability
is
less
volatile
to
TiI
,
TiCl
TiF
PSCs.
TEM
images
SAED
pattern
active
layers
show
degree
crystallite
nature
PSCs.On
other
look,
investigated
materials
have
shown
visible
light
emission
edges
at
358
nm,
375
363
735
nm
wavelength,
optical
performance
area
samples
recorded
up
700
760
540
660
respectively.
