Multifunctional Optimization of MXene for Enhanced Comprehensive Performance of Crystal Silicon‐MXene Back‐Heterojunction Solar Cells
Small,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 19, 2024
Abstract
Enhancing
the
cost‐performance
ratio
is
a
fundamental
objective
for
advancement
of
photovoltaic
sector.
In
this
context,
development
innovative
solar
cells
that
offer
straightforward
device
configuration
but
high
performance
arguably
most
crucial
element.
Herein,
an
undoped
back‐heterojunction
crystalline
silicon
(c‐Si)
cell
endeavored
to
be
crafted
by
simply
drop‐casting
Ti
3
C
2
T
x
MXene
ethanol
colloidal
solution
onto
backside
n
‐type
c‐Si
(
‐Si)
wafer.
Leveraging
good
electrical
property
and
stability,
as
well
adjustable
work
function
treated
europium
trifluoromethanesulfonate
(Eu(OTF)
),
elementary
Ag/ZnO/
‐Si/MXene/Ag
delivers
impressive
power
conversion
efficiency
(PCE)
12.5%.
Moreover,
deposition
SiO
passivation
layer
through
simple
self‐developed
electrochemical
method
increases
PCE
further
13.5%
ameliorating
interfacial
contact
between
‐Si.
unencapsulated
exhibits
improved
compared
control
without
Eu(OTF)
treatment
passivation.
Язык: Английский
Boosting the Performance of Carbon‐Based Hole‐Transport‐Layer‐Free CsPbI2Br Solar Cells by Adding Imidazole Small Molecules
Progress in Photovoltaics Research and Applications,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 10, 2025
ABSTRACT
Carbon‐based
hole‐transport‐layer
(HTL)‐free
CsPbI
2
Br
solar
cells
have
attracted
considerable
interest
due
to
the
improved
stability,
simple
structure,
rich
application
scenarios,
and
low
cost,
as
compared
with
their
organic–inorganic
hybrid
counterparts.
However,
uncoordinated
Pb
2+
mobile
I
−
ions
impose
challenges
for
fabricating
a
cell
good
comprehensive
performance.
To
address
related
issues,
herein,
we
introduce
facile
additive
strategy
using
an
organic
small
molecule
material,
i.e.,
1H‐imidazole‐4‐carboxylic
acid
(ICA),
improve
performance
of
carbon‐based
HTL‐free
cells.
Benefitting
from
effective
passivation
anchoring
,
well
increased
crystallinity
reduced
surface
roughness
layers
by
ICA,
optimal
delivers
power
conversion
efficiency
(PCE)
14.71%,
⁓24.7%
increment
relative
PCE
11.80%
control
device
without
ICA
addition.
Moreover,
ICA‐added
exhibits
evidently
hysteresis
current–voltage
characteristics
notably
enhanced
in
contrast
device.
Язык: Английский
Efficient and Stable Carbon-Based Hole-Transport-Layer-Free CsPbI2Br Solar Cells by Adding Trace Amounts of Yttrium Acetate into the Photoactive Layer
Nano Letters,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 21, 2025
CsPbI2Br
solar
cells
are
a
kind
of
important
inorganic
perovskite
photovoltaic
(PV)
device
that
can
serve
as
the
top
in
tandem
configuration
or
semitransparent
PV
devices
with
balanced
structural
stability
and
light
absorption.
However,
issues
relating
to
their
power
conversion
efficiency
(PCE)
long-term
still
severely
impeded
by
uncoordinated
Pb2+
migratable
I-.
To
effectively
passivate
meanwhile
anchor
I-,
herein,
we
propose
simple
strategy
adding
yttrium
acetate
(Y(Ac)3)
photoactive
layer.
A
leading
PCE
15.53%,
together
notably
improved
reduced
current-voltage
hysteresis,
indicates
effectiveness
this
additive
strategy,
demonstrated
carbon-based
hole-transport-layer
(HTL)-free
having
higher
performance-to-cost
ratio
than
conventional
counterparts
because
they
abandon
usage
noble
metal
electrodes
expensive
organic
HTLs
also
detrimental
Язык: Английский