Nano-Micro Letters,
Год журнала:
2023,
Номер
15(1)
Опубликована: Июль 7, 2023
Abstract
Design
and
modification
of
interfaces
have
been
the
main
strategies
in
developing
perovskite
solar
cells
(PSCs).
Among
interfacial
treatments,
dipole
molecules
emerged
as
a
practical
approach
to
improve
efficiency
stability
PSCs
due
their
unique
versatile
abilities
control
properties.
Despite
extensive
applications
conventional
semiconductors,
working
principles
design
dipoles
performance/stability
enhancement
are
lacking
an
insightful
elucidation.
In
this
review,
we
first
discuss
fundamental
properties
electric
specific
roles
PSCs.
Then
systematically
summarize
recent
progress
materials
several
key
achieve
efficient
stable
addition
such
discussions,
also
dive
into
reliable
analytical
techniques
support
characterization
Finally,
highlight
future
directions
potential
avenues
for
research
development
dipolar
through
tailored
molecular
designs.
Our
review
sheds
light
on
importance
continued
efforts
exciting
emerging
field,
which
holds
great
high-performance
commercially
demanded.
ACS Energy Letters,
Год журнала:
2023,
Номер
8(6), С. 2728 - 2737
Опубликована: Май 24, 2023
All-perovskite
tandem
solar
cells
beckon
as
lower
cost
alternatives
to
conventional
single-junction
cells.
Solution
processing
has
enabled
rapid
optimization
of
perovskite
technologies,
but
new
deposition
routes
will
enable
modularity
and
scalability,
facilitating
technology
adoption.
Here,
we
utilize
4-source
vacuum
deposit
FA0.7Cs0.3Pb(IxBr1-x)3
perovskite,
where
the
bandgap
is
changed
through
fine
control
over
halide
content.
We
show
how
using
MeO-2PACz
a
hole-transporting
material
passivating
with
ethylenediammonium
diiodide
reduces
nonradiative
losses,
resulting
in
efficiencies
17.8%
based
on
vacuum-deposited
perovskites
1.76
eV.
By
similarly
narrow-bandgap
FA0.75Cs0.25Pb0.5Sn0.5I3
combining
it
subcell
evaporated
FA0.7Cs0.3Pb(I0.64Br0.36)3,
report
2-terminal
all-perovskite
cell
champion
open
circuit
voltage
efficiency
2.06
V
24.1%,
respectively.
This
dry
method
enables
high
reproducibility,
opening
avenues
for
modular,
scalable
multijunction
devices
even
complex
architectures.
Chemical Reviews,
Год журнала:
2024,
Номер
124(7), С. 4079 - 4123
Опубликована: Март 25, 2024
All-perovskite
tandem
solar
cells
are
attracting
considerable
interest
in
photovoltaics
research,
owing
to
their
potential
surpass
the
theoretical
efficiency
limit
of
single-junction
cells,
a
cost-effective
sustainable
manner.
Thanks
bandgap-bowing
effect,
mixed
tin-lead
(Sn-Pb)
perovskites
possess
close
ideal
narrow
bandgap
for
constructing
matched
with
wide-bandgap
neat
lead-based
counterparts.
The
performance
all-perovskite
tandems,
however,
has
yet
reach
its
potential.
One
main
obstacles
that
need
be
overcome
is
the─oftentimes─low
quality
Sn-Pb
perovskite
films,
largely
caused
by
facile
oxidation
Sn(II)
Sn(IV),
as
well
difficult-to-control
film
crystallization
dynamics.
Additional
detrimental
imperfections
introduced
thin
film,
particularly
at
vulnerable
surfaces,
including
top
and
bottom
interfaces
grain
boundaries.
Due
these
issues,
resultant
device
distinctly
far
lower
than
theoretically
achievable
maximum
efficiency.
Robust
modifications
improvements
surfaces
films
therefore
critical
advancement
field.
This
Review
describes
origins
covers
efforts
made
so
toward
reaching
better
understanding
perovskites,
particular
respect
surface
improved
stability
cells.
In
addition,
we
also
outline
important
issues
integrating
subcells
achieving
reliable
efficient
double-
multi-junction
tandems.
Future
work
should
focus
on
characterization
visualization
specific
defects,
tracking
evolution
under
different
external
stimuli,
guiding
turn
processing
stable
cell
devices.
Science,
Год журнала:
2024,
Номер
386(6724), С. 898 - 902
Опубликована: Ноя. 21, 2024
Surface
passivation
has
driven
the
rapid
increase
in
power
conversion
efficiency
(PCE)
of
perovskite
solar
cells
(PSCs).
However,
state-of-the-art
surface
techniques
rely
on
ammonium
ligands
that
suffer
deprotonation
under
light
and
thermal
stress.
We
developed
a
library
amidinium
ligands,
interest
for
their
resonance
effect–enhanced
N–H
bonds
may
resist
deprotonation,
to
stability
layers
surfaces.
This
strategy
resulted
>10-fold
reduction
ligand
equilibrium
constant
twofold
maintenance
photoluminescence
quantum
yield
after
aging
at
85°C
illumination
air.
Implementing
this
approach,
we
achieved
certified
quasi–steady-state
PCE
26.3%
inverted
PSCs;
report
retention
≥90%
1100
hours
continuous
1-sun
maximum
point
operation
85°C.
Advanced Materials,
Год журнала:
2023,
Номер
35(39)
Опубликована: Июнь 16, 2023
Tin-lead
(Sn-Pb)
perovskite
solar
cells
(PSCs)
with
near-ideal
bandgap
still
lag
behind
the
pure
lead
PSCs.
Disordered
heterojunctions
caused
by
inhomogeneous
Sn/Pb
ratio
in
binary
film
induce
large
recombination
loss.
Here,
an
Sn-Pb
is
reported
homogeneous
component
and
energy
distribution
introducing
hydrazine
sulfate
(HS)
Sn
precursor.
HS
can
form
hydrogen
bond
network
coordinate
FASnI3
thus
no
longer
Pb2+
,
which
reduces
crystallization
rate
of
tin
to
level
analog.
The
strong
bonding
between
SO42-
Sn2+
also
suppress
its
oxidation.
As
a
result,
PSCs
exhibit
significantly
improved
VOC
0.91
V
along
high
efficiency
23.17%.
Meanwhile,
interaction
network,
ion
improve
thermal,
storage,
air
stability
resulting
devices.
Nano-Micro Letters,
Год журнала:
2023,
Номер
15(1)
Опубликована: Июль 7, 2023
Abstract
Design
and
modification
of
interfaces
have
been
the
main
strategies
in
developing
perovskite
solar
cells
(PSCs).
Among
interfacial
treatments,
dipole
molecules
emerged
as
a
practical
approach
to
improve
efficiency
stability
PSCs
due
their
unique
versatile
abilities
control
properties.
Despite
extensive
applications
conventional
semiconductors,
working
principles
design
dipoles
performance/stability
enhancement
are
lacking
an
insightful
elucidation.
In
this
review,
we
first
discuss
fundamental
properties
electric
specific
roles
PSCs.
Then
systematically
summarize
recent
progress
materials
several
key
achieve
efficient
stable
addition
such
discussions,
also
dive
into
reliable
analytical
techniques
support
characterization
Finally,
highlight
future
directions
potential
avenues
for
research
development
dipolar
through
tailored
molecular
designs.
Our
review
sheds
light
on
importance
continued
efforts
exciting
emerging
field,
which
holds
great
high-performance
commercially
demanded.
