Main Group Chemistry,
Год журнала:
2024,
Номер
24(1), С. 17 - 23
Опубликована: Окт. 25, 2024
Dye-sensitized
solar
Cells
have
attracted
great
attention
recently
due
to
their
excellent
advantages.
This
study
introduces
the
cobalt
and
zinc
metal
complexes
as
a
new
class
of
sensitizers
for
evaluation.
We
report
synthesis
characterization
organic
dyes
applications
Dye-Sensitive
TiO
2
Solar
Cells.
In
this
study,
reason
we
prefer
is
that
they
provide
wide
absorption
spectrum
high
molar
absorption.
The
fact
these
good
energy
level
adaptations
helps
in
efficient
electron
transfer.
designed
complexes,
4,5-diazafluoren
bonded
with
thiophene
carbonyl
donors
electron-with
drawing
groups
were
synthesized.
Structural
was
achieved
FTIR,
UV-Vis,
Maldi-MS.
complex
binder
dye
has
demonstrated
promising
DSSC
properties
such
short-circuit
current,
open-circuit
voltage,
fill
factor,
indicating
charge
generation
injection.
bathochromic
shift
seen
UV-Vis
spectra
efficiency.
Notably,
highest
efficiency
obtained
from
ZnS2
0.61%,
while
lowest
CoS1
0.17%.
power
conversion
efficiencies
(η)
produced
by
CoS1,
CoS2,
ZnS1,
exhibit
device
performance
>
ZnS1
CoS2
respectively.
With
results,
development
DSSCs
promising.
In
this
work,
we
have
developed
a
range
of
organic
Donor-
π
-Acceptor;
are
changing
the
π-spacers
by
adding
novel
substitutions
(F,
CH3,
and
CN)
to
base
molecule
D-TTOxTT-A
for
dye-sensitized
solar
cells
(DSSCs).
Our
aim
is
improve
photovoltaic
performance
these
engineered
dyes.
We
use
B3LYP
(d,p)
TD/CAM-B3LYP
study
impact
different
types
introduction
substitution
in
spacer,
on
sensitizer
characteristics,
with
highlighting
links
between
structure
property.
Based
results,
it
possible
dyes
as
promising
sensitizers
DSSCs.
addition,
M4
could
be
an
ideal
compound
high
throughput
DSSC
due
its
planar
geometry,
low
energy
gap
(1.73eV),
higher
absorption
wavelength
(449.3nm),
longer
lifetime
(2.366
ns),
lower
ΔGreg
(-0.64
eV),
large
hardness
(-0.869
eV)
reasonable
reorganization
(0.488eV).
Research Square (Research Square),
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 4, 2025
Abstract
Regarding
sustainability,
affordability,
and
material
consumption,
dye-sensitized
solar
cells
(DSSCs)
are
among
the
finest
solutions
for
addressing
pressing
need
to
develop
renewable
energy
sources.
The
current
work
reports,
a
straightforward
electrochemical
approach
synthesizing
CuO/Al2O3
nanocomposite.
Investigates
their
structure,
morphology,
crystallinity,
power
conversion
efficiency
(PCE)
as
efficient
low-cost
photo-anode
electrodes
(DSSCs),
was
characterized
by
atomic
force
microscopy
(AFM),
Transmission
electron
(TEM),
X-ray
diffraction
(XRD),
UV-Vis
spectroscopy
current-voltage
(I-V)
performance.
optical
band
gap
determined
be
3.18
eV.
parameters,
including
Voc,
Isc,
FF,
ɳ,
were
derived
from
I-V
curves.
values
of
fabricated
DSSCs
(0.65%,
0.83%,
0.78%,
1.9232%)
(
Rossel,
Chlorophyll,
Methylene
MB,
red
dye
MR)
respectively.
results
indicate
that
MR
nanocomposite
most
effective
sensitizer
photoanode
all
evaluated
alternatives.
