80% Fill Factor in Organic Solar Cells with a Modified Nickel Oxide Interlayer
Advanced Energy Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 5, 2025
Abstract
The
efficiency
of
organic
solar
cells
has
raised
drastically
in
the
past
years.
However,
there
is
an
undeniable
lack
hole
transport
layers
that
can
provide
high
carrier
selectivity,
low
defect
density,
and
processing
robustness,
simultaneously.
In
this
work,
issue
addressed
by
studying
generation
surface
passivation
nickel
oxide
(NiO
x
).
It
revealed
oxidation
state
species
on
NiO
lowers
contact
resistance
but
hinders
charge
extraction
when
employed
as
layer
cells.
By
using
them
coordination
centers,
a
straightforward
modification
strategy
implemented
(2‐(9H‐carbazol‐9‐yl)ethyl)phosphonic
acid
(2PACz)
enhances
increases
cell
from
11.46%
to
17.12%.
Additionally,
robustness
across
different
deposition
methods
carbazole
molecule
demonstrated.
Finally,
fine‐tuning
Fermi
level
various
carbazole‐based
molecules,
particular
with
((4‐(7H‐dibenzo[c,g]carbazol‐7‐yl)butyl)phosphonic
(4PADCB),
power
conversion
17.29%
achieved,
outstanding
combination
V
OC
0.888
fill
factor
80%.
Язык: Английский
A Brief Review on Self-Assembled Monolayers in Organic Solar Cells: Progress, Challenges, and Future Prospects
ACS Applied Electronic Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 22, 2025
Over
the
past
decade,
organic
solar
cells
(OSCs)
have
made
noticeable
progress
in
photovoltaic
performance
thanks
to
emergence
of
electron
acceptors
capable
intramolecular
charge
transfer,
namely,
nonfullerene
small
molecules.
OSCs
continue
gain
momentum
by
employing
self-assembled
monolayers
(SAMs)
as
transport
layers,
particularly
those
involving
conjugated
system
their
functional
groups
and/or
spacers.
This
review
provides
an
overview
SAMs,
covering
molecular
designs,
fabrication
methods,
and
various
functions
OSCs.
Additionally,
it
highlights
currents
issues
surrounding
along
with
efforts
address
them
future
perspectives.
Язык: Английский
Progress in the Stability of Small Molecule Acceptor‐Based Organic Solar Cells
Advanced Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 5, 2024
Abstract
Significant
advancements
in
power
conversion
efficiency
have
been
achieved
organic
solar
cells
with
small
molecule
acceptors.
However,
stability
remains
a
primary
challenge,
impeding
their
widespread
adoption
renewable
energy
applications.
This
review
summarizes
the
degradation
of
different
layers
within
device
structure
under
varying
conditions,
including
light,
heat,
moisture,
and
oxygen.
For
photoactive
layers,
chemical
pathways
polymer
donors
acceptors
are
examined
detail,
alongside
morphological
bulk
heterojunction
structure,
which
plays
crucial
role
performance.
The
mechanisms
commonly
used
anode
cathode
interlayers
electrodes
addressed,
as
these
significantly
influence
overall
stability.
Mitigation
methods
for
identified
provided
each
section
to
offer
practical
insights
improving
longevity.
Finally,
an
outlook
presents
remaining
challenges
achieving
long‐term
stability,
emphasizing
research
directions
that
require
further
investigation
enhance
reliability
performance
real‐world
Язык: Английский
Effect of self-assembled monolayer on stability of perovskite LEDs
Physica B Condensed Matter,
Год журнала:
2025,
Номер
unknown, С. 416967 - 416967
Опубликована: Янв. 1, 2025
Язык: Английский
Sn2+-coordinated polyethylenimine as an electron transport layer for high-efficiency and stable inverted organic solar cells
Journal of Materials Chemistry C,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
Polyethylenimine
(PEI)
modified
with
tin(
ii
)
ions
serves
as
an
effective
electron
transport
layer
in
inverted
polymer
solar
cells,
achieving
a
power
conversion
efficiency
(PCE)
of
17.5%,
which
exceeds
the
15.7%
PCE
traditional
PEI-based
devices.
Язык: Английский
Incorporation of Self‐Assembled Monolayer with Polyaniline Backbone as Hole‐Transporting Layer for Organic Solar Cells
Macromolecular Rapid Communications,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 3, 2025
Abstract
In
addition
to
the
heterojunction
layer,
interfacial
layers
also
determine
performance
of
organic
solar
cells
(OSCs)
owing
their
great
role
in
promoting
charge
extraction.
Herein,
study
explores
use
rarely
reported
polyaniline
(PANI)‐derived
polymers
as
self‐assembled
hole‐transporting
layer
(HTL)
OSCs.
It
is
observed
that
tailoring
either
spacer
groups
or
polymerization
sites
can
greatly
affect
material
aggregation
and
thus
OSC
performance.
Specifically,
polymer
with
phenyl
(36‐Ph‐PANI)
largely
outperforms
alkyl
linkers,
which
ascribed
enhanced
aspect
ratio
dipole
moment
former
molecule
contributes
substrate
coverage
hole
Moreover,
linking
PANI
carbazole
at
2,7‐sites
much
inferior
than
3,6‐positions,
attributing
higher
mobility
latter
induced
by
formation
radical
cation.
The
combined
merits
36‐Ph‐PANI,
including
high
transmittance,
appropriate
doping,
efficient
extraction,
enable
a
decent
efficiency
15.08%
This
work
provides
subtle
strategy
for
developing
self‐assemble
into
monolayers,
paving
way
more
stable
Язык: Английский
Efficient Hole Injection From Indium Tin Oxide in Quantum‐Dot Light‐Emitting Diodes
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 27, 2025
Abstract
PEDOT:PSS
thin
film
is
commonly
used
as
a
hole
injection
layer
(HIL)
in
quantum‐dot
light‐emitting
diodes
(QLEDs).
However,
the
realization
of
QLEDs‐based
displays
remains
challenging
due
to
complex
effects
acidic
surfaces
on
device
performance.
Here,
it
demonstrated
that
operation
QLEDs,
metal
diffusion
from
electrodes
into
QD
films
can
result
exciton
quenching.
By
applying
an
organic
molecule
[4‐(3,6‐dibromo‐9H‐carbazol‐9‐yl)butyl]phosphonic
acid
(2BrCzPA),
treatment
ITO,
The
role
traditional
be
replaced.
formation
strong
dipoles
at
ITO/2BrCzPA
self‐assembled
molecules
(SAM)
interfaces
exhibits
excellent
abilities.
This
method
leads
more
efficient
generation
and
outstanding
operational
stability,
enabling
QLEDs
exhibit
superior
Specifically,
high
external
quantum
efficiencies
15.28%,
12.63%,
14.83%
are
achieved
brightness
34
250,
22
640,
9147
cd
m
−2
for
green,
blue,
red
respectively.
work
presents
high‐performance
ITO/SAM
QLED
eliminates
unstable
better
which
promote
practical
application
technology
solid‐state
lighting.
Язык: Английский
Stability of Organic Photovoltaics: From Root Causes to Advanced Analytical Techniques
Advanced Energy Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 10, 2025
Abstract
The
primary
challenge
in
the
commercialization
of
organic
photovoltaics
(OPVs)
is
ensuring
long‐term
stability,
making
study
their
degradation
mechanisms
essential.
This
centered
on
underlying
degradation,
providing
a
systematic
and
in‐depth
analysis
instability
factors.
A
clear
distinction
between
burn‐in
loss
established,
with
comprehensive
examination
governing
each
process.
review
highlights
how
pathways
vary
depending
external
environmental
factors
specific
device
layers,
while
also
identifying
key
indicators
for
mitigating
instability.
Furthermore,
this
work
extensively
discusses
analytical
tools
employed
stability
research,
offering
structured
overview
methodologies,
obtained
results,
practical
implications.
Advanced
high
potential
future
applications
are
introduced,
along
principles
prospective
contributions
to
analysis.
By
integrating
mechanistic
perspective
an
exploration
techniques,
provides
framework
understanding
OPV
offers
valuable
insights
into
development
effective
stabilization
strategies.
Язык: Английский