Crystals,
Год журнала:
2024,
Номер
14(7), С. 584 - 584
Опубликована: Июнь 25, 2024
In
order
to
surmount
the
Shockley–Queisser
efficiency
barrier
of
single-junction
solar
devices,
tandem
cells
(TSCs)
have
shown
a
potential
solution.
Organic
and
Si
materials
can
be
promising
candidates
for
front
rear
in
TSCs
due
their
non-toxicity,
cost-effectiveness,
possible
complementary
bandgap
properties.
This
study
researches
flexible
two-terminal
(2-T)
organic/Si
TSC
through
TCAD
simulation.
proposed
configuration,
organic
cell
(OSC),
with
photoactive
optical
1.78
eV,
serves
as
cell,
while
comprises
based
on
thin
70
μm
wafer,
energy
1.12
eV.
The
individual
standalone
bottom
cells,
upon
calibration,
demonstrate
power
conversion
efficiencies
(PCEs)
11.11%
22.69%,
respectively.
When
integrated
into
2-T
monolithic
TSC,
resultant
achieves
PCE
20.03%,
indicating
need
optimization
top
beat
cell.
To
enhance
performance
OSC,
some
design
ideas
are
presented.
Firstly,
OSC
is
designed
by
omitting
hole
transport
layer
(HTL).
Consequently,
engineering
contact
work
function,
enhanced.
Moreover,
influence
varying
absorber
defect
density
investigated.
Reduced
led
an
overall
improvement
23.27%.
Additionally,
effects
variation
thicknesses
metrics
explored.
With
matching
condition
design,
enhanced
27.60%,
VOC
=
1.81
V
JSC
19.28
mA/cm2.
presented
simulation
results
intimate
that
OSC/Si
find
applications
wearable
electronics
flexibility,
environmentally
friendly
high
efficiency.
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Сен. 9, 2024
Abstract
Copper(I)
thiocyanate
(CuSCN)
is
a
prominent
wide‐bandgap
p‐type
semiconductor
with
desirable
transparency
and
chemical
robustness.
Whereas
intrinsic
limitations,
such
as
its
relatively
low
Fermi
level
(
E
F
)
modest
electrical
conductivity,
have
impeded
broader
application
in
organic
solar
cells
(OSCs).
This
study
introduces
novel
approach
to
modify
the
electronic
properties
of
CuSCN
by
inducing
copper
vacancies
through
use
specific
solvent
mixtures,
thereby
enhancing
suitability
for
OSCs.
The
effects
two
methanol/ammonia
(CH
3
OH/NH
4
OH)
dimethyl
sulfoxide/
N
,
‐Dimethylformamide
(DMSO/DMF)
systematically
investigated,
on
layer.
findings
reveal
that
these
systems
induce
higher
concentration
within
film,
resulting
significant
reduction
substantial
increase
conductivity.
These
modifications
led
improved
energy
alignment
PM6:L8‐BO:BTP‐eC9
blended
photoactive
layers,
culminating
marked
enhancement
power‐conversion
efficiencies
19.10%
DMSO/DMF
processed
Additionally,
it
has
observed
enhanced
shelf/thermal
stability
thickness
tolerance
OSCs
based
films.
work
not
only
presents
strategy
modifying
performance
characteristics
but
also
underscores
potential
contribute
advancement
photovoltaic
technologies.
Crystals,
Год журнала:
2024,
Номер
14(7), С. 584 - 584
Опубликована: Июнь 25, 2024
In
order
to
surmount
the
Shockley–Queisser
efficiency
barrier
of
single-junction
solar
devices,
tandem
cells
(TSCs)
have
shown
a
potential
solution.
Organic
and
Si
materials
can
be
promising
candidates
for
front
rear
in
TSCs
due
their
non-toxicity,
cost-effectiveness,
possible
complementary
bandgap
properties.
This
study
researches
flexible
two-terminal
(2-T)
organic/Si
TSC
through
TCAD
simulation.
proposed
configuration,
organic
cell
(OSC),
with
photoactive
optical
1.78
eV,
serves
as
cell,
while
comprises
based
on
thin
70
μm
wafer,
energy
1.12
eV.
The
individual
standalone
bottom
cells,
upon
calibration,
demonstrate
power
conversion
efficiencies
(PCEs)
11.11%
22.69%,
respectively.
When
integrated
into
2-T
monolithic
TSC,
resultant
achieves
PCE
20.03%,
indicating
need
optimization
top
beat
cell.
To
enhance
performance
OSC,
some
design
ideas
are
presented.
Firstly,
OSC
is
designed
by
omitting
hole
transport
layer
(HTL).
Consequently,
engineering
contact
work
function,
enhanced.
Moreover,
influence
varying
absorber
defect
density
investigated.
Reduced
led
an
overall
improvement
23.27%.
Additionally,
effects
variation
thicknesses
metrics
explored.
With
matching
condition
design,
enhanced
27.60%,
VOC
=
1.81
V
JSC
19.28
mA/cm2.
presented
simulation
results
intimate
that
OSC/Si
find
applications
wearable
electronics
flexibility,
environmentally
friendly
high
efficiency.
