Record‐Efficiency Inverted CsPbI3 Perovskite Solar Cells Enabled by Rearrangement and Hydrophilic Modification of SAMs
Dongfang Xu,
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Meizi Wu,
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Yimin Bai
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et al.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 6, 2024
Abstract
Recently,
the
inverted
CsPbI
3
perovskite
solar
cells
(PSCs)
have
attracted
extensive
attentions
due
to
their
potential
combine
with
silicon
for
tandem
devices
theoretical
power
conversion
efficiency
(PCE)
of
44%.
However,
reported
self‐assembled
molecules
(SAMs)
as
hole
selected
layer
PSCs
poor
wettability
and
serious
agglomeration,
which
greatly
limits
stability
PSCs.
To
address
above
problem,
niobium
pentachloride
(NCL)
is
applied
prevent
SAMs
agglomeration
a
homogenous
film
hydrophilic
surface.
The
optimized
surface
facilitates
deposition
cesium
lead
triiodide
(CsPbI
)film
an
enhanced
referred
orientation,
suppressed
defects,
released
stress.
Consequently,
NCL‐treated
achieved
champion
PCE
21.24%,
highest
value
all‐inorganic
device
maintained
97.61%
initial
after
1000
h
storage
in
air,
92.27%
tracking
at
maximum
point
(MPP).
Language: Английский
Post‐Assembled Dipole Benzoic Acids Modified Me‐4PACz for Efficient and Stable Inverted Perovskite Solar Cells
Yuan Fan,
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Tangyue Xue,
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Mengzhen Du
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et al.
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 16, 2025
Abstract
Self‐assembled
monolayers
(SAMs),
particularly
those
molecules
composed
of
carbazole
and
phosphonic
acid,
are
widely
employed
as
effective
hole‐selective
layer
(HSL)
in
inverted
perovskite
solar
cells
(PSCs).
However,
the
insufficient
chemical
bond
formation
with
metal
oxides
(ITO)
self‐aggregation
solvents
acid
SAM
led
to
non‐uniform
HSL,
which
turn
affect
power
conversion
efficiency
(PCE)
stability
PSCs.
Herein,
a
series
benzoic
materials
(BAs),
including
p‐fluorobenzoic
(FBA)
p‐methylbenzoic
(MBA),
used
post‐assembly
effectively
fill
voids
between
[4‐(3,6‐dimethyl‐9H‐carbazole‐9‐yl)butyl]phosphonic
(Me‐4PACz)
form
denser
facilitates
passivation
buried
interface.
In
addition,
post‐assembled
BAs
different
dipole
moments
can
adjust
work
function
Me‐4PACz
facilitating
transport
extraction
charge
carriers.
Consequently,
PSCs
based
on
Me‐4PACz/FBA
HSL
realize
champion
PCE
25.58%.
Moreover,
unencapsulated
devices
maintain
82%
94%
after
800
h
outdoor
storage
(RH≈60%)
2000
glove
box,
respectively.
This
technique
enhances
both
device,
blazing
simple
pathway
for
further
development
Language: Английский
2D Membranes Interlayered with Bimetallic Metal–Organic Frameworks for Lithium Separation from Brines
Furong Yuan,
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Qifeng Gao,
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Zixiao Lv
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et al.
Nano Letters,
Journal Year:
2024,
Volume and Issue:
24(45), P. 14346 - 14354
Published: Oct. 29, 2024
Efficient
lithium
extraction
from
salt
lakes
is
essential
for
a
sustainable
resource
supply.
This
study
tackles
the
challenge
of
separating
Li+
Mg2+
in
complex
brines
by
innovatively
integrating
two-dimensional
(2D)
graphene
oxide
(GO)
with
bimetallic
metal–organic
frameworks
(MOFs).
Zn2+
and
Co2+
ions
are
confined
within
GO
interlayers
through
an
situ
synthesis,
forming
2D
Zn-Co
MOFs/GO
membrane
(Zn-Co-GOM).
design
exploits
unique
advantages
MOFs,
including
enhanced
structural
stability
superior
ion
separation
capabilities
due
to
synergistic
effects
Zn
Co.
The
Zn-Co-GOM
demonstrates
impressive
factor
191
over
Mg2+,
significantly
surpassing
traditional
membranes.
exceptional
selectivity
achieved
combination
size
exclusion
transport
energy
barriers.
Our
approach
not
only
enhances
practical
application
technology
but
also
provides
valuable
insights
into
underlying
mechanisms.
Language: Английский
Energy Level Alignment Regulation and Carrier Management in Perovskite Solar Cells with Various Bandgaps Using Tailored Metal‐Organic Frameworks
Bo Xiao,
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Wenguang Zhang,
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Yuchen Xiong
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et al.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 21, 2024
Abstract
The
interface
energy
level
alignment
modulation
and
charge
carrier
transportation
play
an
important
role
in
the
device
performance
of
perovskite
solar
cells
(PSCs).
Herein,
tailored
hydrophobic
metal‐organic
frameworks
(MOFs)
are
employed
as
interfacial
layers
between
absorbers
hole
transport
(HTLs).
MOFs
feature
abundant
carboxylic
acid
groups
capable
bonding
with
Pb
2+
organic
cations,
which
can
effectively
passivate
defects
suppress
non‐radiative
recombination.
Meanwhile,
MOF
optimized
HTL,
further
facilitating
transportation.
Specifically,
CsFAMA‐based
PSCs
a
bandgap
1.63
eV
attained
power
conversion
efficiency
(PCE)
23.06%
upon
modification
MOFs.
Additionally,
MOFs‐treated
FA‐based
1.55
achieved
remarkable
PCE
24.81%,
accompanied
by
outstanding
fill
factor
84.3%
minimal
open‐circuit
voltage
loss
merely
0.386
V.
Furthermore,
integration
layer
substantially
improved
moisture
stability
PSCs.
unencapsulated
CsFAMA
modified
retained
91.2%
their
initial
after
2500
h
aging
under
ambient
conditions
40%
relative
humidity
(RH).
This
work
underpins
commercialization
diverse
bandgaps.
Language: Английский
Recent insights into the transformative role of Graphene‐based/TiO2 electron transport layers for perovskite solar cells
Energy Science & Engineering,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 18, 2024
Abstract
Perovskite
solar
cells
(PSCs)
hold
great
promise
for
cost‐effective
and
high‐efficiency
energy
conversion.
However,
in
practice,
they
face
practical
limitations
due
to
suboptimal
electron
transport,
inadequate
hole‐suppression,
photocatalytic
instability,
susceptibility
other
environmental
factors.
Many
transition
metal
oxides
such
as
ZnO
TiO
2
have
important
excitonic
properties
that
make
them
good
transport
layer
(ETL)
materials
PSCs.
many
of
the
PS
arise
from
inherent
issues
with
these
oxides.
The
high
interest
is
its
low
toxicity,
chemical
stability,
potential
enhance
performance
through
doping
materials.
main
are
poor
visible‐light
response
by
virtue
wide
bandgap
~3.2
eV,
electron‐hole
(e‐h)
recombination
rates,
which
directly
responsible
current
densities.
Transition
oxide
enhancements
occur
using
either
internal
or
surface
sensitization.
Of
added
materials,
graphene
has
exceptional
electrical
conductivity,
mobility,
large
area,
excellent
mechanical
properties,
making
it
a
near‐ideal
candidate
improve
.
This
review
examines
advances
graphene‐TiO
(g‐TiO
)
composites
ETL
application.
By
forming
composite
,
can
significantly
reduce
losses,
overall
stability
We
present
detailed
rationale
analysis
g‐TiO
improved
efficiency,
enhanced
boosted
PSC
objective
providing
an
authoritative
resource
field.
Language: Английский
Metal–Organic Frameworks and Derivative Materials in Perovskite Solar Cells: Recent Advances, Emerging Trends, and Perspectives
Solar RRL,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 30, 2024
The
power
conversion
efficiency
(PCE)
of
perovskite
solar
cells
(PSCs)
has
reached
an
impressive
value
26.1%.
While
several
initiatives
such
as
structural
modification
and
fabrication
techniques
helped
steadily
increase
the
PCE
stability
PSCs
in
recent
years,
incorporation
metal–organic
frameworks
(MOFs)
stands
out
among
other
innovations
emerged
a
promising
path
forward
to
make
this
technology
front‐runner
for
realizing
next‐generation
low‐cost
photovoltaic
technologies.
Owing
their
unique
physiochemical
properties
extraordinary
advantages
large
specific
surface
area
tunable
pore
structures,
incorporating
them
as/in
different
functional
layers
endows
devices
with
optoelectronic
properties.
This
article
reviews
latest
research
practices
adapted
integrating
MOFs
derivative
materials
into
constituent
blocks
photoactive
absorber,
electron‐transport
layer,
hole‐transport
interfacial
layer.
Notably,
special
emphasis
is
placed
on
aspect
improvement
by
materials.
Also,
potential
lead
absorbents
highlighted.
Finally,
outlook
critical
challenges
faced
future
perspectives
employing
light
commercialization
provided.
Language: Английский