ACS Nano,
Journal Year:
2024,
Volume and Issue:
18(52), P. 35383 - 35392
Published: Dec. 16, 2024
Copper
nanoclusters
(Cu
NCs),
synthesized
by
a
one-pot
synthesis
method,
were
theoretically
shown
to
exhibit
dipole
moment
and
cause
work
function
modification
on
surface
as
observed
from
Kelvin
probe
measurement.
Here,
Cu
NCs
used
an
interfacial
modifier
in
organic
solar
cells
(OSCs).
The
effective
engineering
of
the
electron
transporting
layer/active
layer
interface
using
resulted
improved
photovoltaic
performance
fullerene
non-fullerene
based
OSCs.
On
insertion
NCs,
best
power
conversion
efficiency
(PCE)
obtained
for
system
was
15.83%
compared
14.22%
control
device,
while
PCE
increased
7.79%
8.62%
system.
reduced
recombination
losses
charge
accumulation
at
interfaces.
NC
interfaced
devices
is
attributed
modification,
enabling
energy
barrier
enhanced
collection.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(27)
Published: April 18, 2024
The
interface
of
perovskite
solar
cells
(PSCs)
plays
an
important
role
in
transferring
and
collecting
charges.
Interface
defects
are
factors
affecting
the
efficiency
stability
PSCs.
Here,
buried
between
SnO
Small,
Journal Year:
2024,
Volume and Issue:
20(26)
Published: April 4, 2024
Abstract
Perovskite
solar
cells
(PSCs)
stand
at
the
forefront
of
photovoltaic
research,
with
current
efficiencies
surpassing
26.1%.
This
review
critically
examines
role
electron
transport
materials
(ETMs)
in
enhancing
performance
and
longevity
PSCs.
It
presents
an
integrated
overview
recent
advancements
ETMs,
like
TiO
2
,
ZnO,
SnO
fullerenes,
non‐fullerene
polymers,
small
molecules.
Critical
challenges
are
regulated
grain
structure,
defect
passivation
techniques,
energy
level
alignment,
interfacial
engineering.
Furthermore,
highlights
innovative
that
promise
to
redefine
charge
A
detailed
comparison
state‐of‐the‐art
ETMs
elucidates
their
effectiveness
different
perovskite
systems.
endeavors
inform
strategic
enhancement
development
n‐type
layers
(ETLs),
delineating
a
pathway
toward
realization
PSCs
superior
efficiency
stability
for
potential
commercial
deployment.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(37)
Published: April 10, 2024
Abstract
As
an
electron
transport
layer
(ETL)
widely
used
in
organic
solar
cells
(OSCs),
ZnO
has
problems
with
energy
level
mismatch
the
active
and
excessive
defects
on
surface,
which
can
reduce
efficiency
of
OSCs.
Here,
ZnO/ZrSe
2
composite
is
fabricated
by
modifying
2D
ZrSe
.
The
XPS
first‐principles
calculation
(FPC)
show
that
obtains
electrons
from
forms
interfacial
dipoles
toward
layer,
decreases
work
function
ZnO,
thus
reducing
interface
barrier
favoring
collection
At
same
time,
after
modification,
oxygen
vacancy
density
surface
decreases,
improving
conductivity
ZnO.
More
importantly,
femtosecond
transient
absorption
(Fs‐TA)
shows
selectively
traps
holes
prevents
entering
thereby
probability
recombination.
Finally,
as
a
novel
ETL
OSCs
PBDB‐T:
ITIC,
PM6:Y6
PM6:
L8‐BO
layers,
obtaining
12.09%,
16.34%,
18.24%
efficiency,
respectively.
This
study
provides
method
for
modification
further
investigates
role
nanosheets
modification.
ACS Applied Materials & Interfaces,
Journal Year:
2024,
Volume and Issue:
16(12), P. 15121 - 15132
Published: March 19, 2024
Acquiring
the
ideal
blend
morphology
of
active
layer
to
optimize
charge
separation
and
collection
is
a
constant
goal
polymer
solar
cells
(PSCs).
In
this
paper,
ternary
strategy
sequential
deposition
process
were
combined
make
sufficient
use
spectrum,
energy-level
structure,
regulate
vertical
phase
morphology,
ultimately
enhance
power
conversion
efficiency
(PCE)
stability
PSCs.
Specifically,
donor
acceptor
illustrated
gradient-blended
distribution
in
deposition-processed
films,
thus
resulting
facilitated
carrier
characteristics
devices.
Consequently,
PSCs
based
on
D18-Cl/Y6:ZY-4Cl
have
achieved
device
over
18%
with
synergetic
improvement
open-circuit
voltage
(VOC),
short-circuit
current
density
(JSC),
fill
factor
(FF).
Therefore,
work
reveals
facile
approach
fabricating
improved
performance
stability.
Aggregate,
Journal Year:
2024,
Volume and Issue:
5(5)
Published: April 22, 2024
Abstract
Among
a
promising
photovoltaic
technology
for
solar
energy
conversion,
organic
cells
(OSCs)
have
been
paid
much
attention,
of
which
the
power
conversion
efficiencies
(PCEs)
rapidly
surpassed
over
20%,
approaching
threshold
potential
applications.
However,
device
stability
OSCs
including
storage
stability,
photostability
and
thermal
remains
to
be
an
enormous
challenge
when
faced
with
practical
The
major
causes
instability
are
rooted
in
poor
inherent
properties
light‐harvesting
materials,
metastable
morphology,
interfacial
reactions
highly
sensitive
external
stresses.
To
get
rid
these
flaws,
comprehensive
review
is
provided
about
recent
strategies
methods
improving
from
active
layers,
engineering
encapsulation
techniques
high‐performance
OSC
devices.
In
end,
prospectives
next
stage
development
devices
satisfactory
long‐term
afforded
community.
Angewandte Chemie,
Journal Year:
2024,
Volume and Issue:
136(27)
Published: April 18, 2024
Abstract
The
interface
of
perovskite
solar
cells
(PSCs)
plays
an
important
role
in
transferring
and
collecting
charges.
Interface
defects
are
factors
affecting
the
efficiency
stability
PSCs.
Here,
buried
between
SnO
2
layer
is
bridged
by
two‐dimensional
(2D)
MBene,
which
improves
charge
transfer.
MBene
can
deposit
additional
electrons
on
surface
,
passivate
its
facilitate
collection.
Moreover,
dipole
moment
formed
at
increases
electron
transfer
ability
also
regulates
growth
crystals,
quality
films,
reduces
grain
boundary
defects.
As
a
result,
PSCs
based
FA
0.2
MA
0.8
PbI
3
(FAPbI
)
0.95
(MAPbBr
0.05
get
enhanced
efficiencies
22.34
%
24.32
with
negligible
hysteresis.
Furthermore,
optimized
device
exhibits
better
stability.
This
work
opens
up
application
materials
PSCs,
reveals
deeper
understanding
mechanism
behind
using
2D
as
modification
layer,
shows
opportunities
for
potential
material
photoelectric
devices.
