Continuous
breakthroughs
have
been
achieved
in
the
photoelectric
conversion
efficiency
(PCE)
of
tin-based
perovskite
solar
cells
(TPSCs)
recent
years.
Inspired
by
performance
improvements
observed
during
device
storage,
we
identified
beneficial
light-induced
interface
doping
(LIID)
TPSCs.
In
situ
analyses
using
X-ray
photoelectron
spectroscopy
and
ultraviolet
reveal
that
ion
migration
oxidation
at
induce
effects,
enhancing
carrier
transport
significantly
boosting
performance.
By
implementing
specific
illumination
techniques
or
maximum
power
point
tracking
(MPPT)
methods
to
achieve
LIID,
increased
open-circuit
voltage
while
maintaining
a
high
short-circuit
current,
reaching
PCE
up
14.91%.
Furthermore,
this
was
sustained
70%
its
value
after
nearly
900
h
continuous
operation.
Our
study
introduces
novel
approach
addressing
energy
band
mismatch,
paving
way
for
improved
cells.
Advanced Energy Materials,
Год журнала:
2023,
Номер
13(23)
Опубликована: Май 1, 2023
Abstract
Tin
halide
perovskite
solar
cells
(TPSCs)
have
attracted
aggressive
research
interest
in
the
emerging
photovoltaic
devices
due
to
their
eco‐friendliness
as
compared
lead
counterparts.
However,
easy
Sn(II)/Sn(IV)
oxidation
of
tin
perovskites
is
a
serious
impediment
development
TPSCs.
Therefore,
clear
understanding
mechanisms,
origins,
and
effects
essential
further
boost
performance
stability
Herein,
systematic
overview
physicochemical
process
for
TPSCs
from
starting
precursors
final
presented.
In
addition,
on
are
then
reviewed
crystal
structure,
defect
chemistry,
optoelectronic
properties.
More
importantly,
key
issues
suppress
seriously
discussed
basis
reported
antioxidation
strategies.
Finally,
challenges
outlooks
toward
with
higher
power
conversion
efficiency
proposed.
Energy & Environmental Science,
Год журнала:
2023,
Номер
16(8), С. 3430 - 3440
Опубликована: Янв. 1, 2023
Green
antisolvent
diethyl
carbonate
retards
the
kinetics
of
solvent–antisolvent
interactions,
enabling
a
gradient
distribution
p-type
self-doping
perovskite
absorber
to
achieve
14.2%-efficiency
Sn-based
solar
cells.
Nature Communications,
Год журнала:
2024,
Номер
15(1)
Опубликована: Авг. 26, 2024
All-perovskite
tandem
solar
cells
have
shown
great
promise
in
breaking
the
Shockley–Queisser
limit
of
single-junction
cells.
However,
efficiency
improvement
all-perovskite
is
largely
hindered
by
surface
defects
induced
non-radiative
recombination
loss
Sn–Pb
mixed
narrow
bandgap
perovskite
films.
Here,
we
report
a
reconstruction
strategy
utilizing
polishing
agent,
1,4-butanediamine,
together
with
passivator,
ethylenediammonium
diiodide,
to
eliminate
Sn-related
and
passivate
organic
cation
halide
vacancy
on
Our
not
only
delivers
high-quality
films
close-to-ideal
stoichiometric
ratio
but
also
minimizes
energy
at
perovskite/electron
transport
layer
interface.
As
result,
our
bandgaps
1.32
1.25
eV
realize
power
conversion
efficiencies
22.65%
23.32%,
respectively.
Additionally,
further
obtain
certified
28.49%
two-junction
The
impacted
nonradiative
authors
utilize
agent
passivator
deliver
surface.
Applied Physics Reviews,
Год журнала:
2024,
Номер
11(2)
Опубликована: Апрель 1, 2024
Lead
halide
perovskite
solar
cells
(PSCs)
have
achieved
remarkable
efficiencies
comparable
to
those
of
their
established
silicon
counterparts
at
a
very
fast
pace.
Moreover,
solution-processable
facile
technologies
offer
low-cost,
low-temperature,
scalable
fabrication
these
cells.
Numerous
studies
focused
on
improving
the
performance,
stability,
and
processing
PSCs.
However,
potential
lead
toxicity
poor
long-term
stability
impede
commercialization.
In
recent
years,
several
developed
novel
encapsulants
for
PSCs
that
can
simultaneously
improve
leakage.
Although
improvements
been
made
both
fronts,
no
solution
date
could
achieve
level
leakage
prevention
result
in
market
breakthrough.
Here,
we
analyze
PSC
encapsulation
techniques
undertaken
years.
While
most
related
either
or
toxicity,
note
be
solved
together
with
suitable
encapsulant
is
impermeable
moisture
Pb2+
ions.
addition,
lack
unified
standard
testing
protocol
has
led
under
variety
temperatures,
humidities,
environmental
conditions.
Therefore,
urgency
cannot
overlooked.
Angewandte Chemie International Edition,
Год журнала:
2023,
Номер
62(45)
Опубликована: Авг. 1, 2023
Abstract
Tin
(Sn)‐based
perovskites
as
the
most
promising
absorber
materials
for
lead‐free
perovskite
solar
cells
(PSCs)
have
achieved
record
efficiency
of
over
14
%.
Although
suppressing
oxidation
Sn‐based
is
a
frequently
concerned
topic
PSCs,
many
studies
given
vague
explanations
and
mechanisms
are
still
under
debate.
This
in
principal
due
to
lack
an
in‐depth
understanding
various
complex
intrinsic
extrinsic
factors
causing
process.
In
this
context,
we
critically
review
chemical
mechanism
facile
differentiate
its
detrimental
effects
at
material‐
device‐level.
More
importantly,
classify
introduce
(raw
solvent
precursors)
(exposure
neutral
oxygen
superoxide)
with
their
corresponding
anti‐oxidation
improvement
methods.
The
presented
comprehensive
prospect
provide
insightful
guidance
PSCs
“from
beginning
end”.
Abstract
Tin
(Sn)‐containing
perovskite
solar
cells
(PSCs)
have
gained
significant
attention
in
the
field
of
optoelectronics
due
to
lower
toxicity
than
their
lead‐based
counterparts
and
potential
for
tandem
applications.
However,
lack
stability
is
a
major
concern
that
hampers
development.
To
achieve
long‐term
Sn‐containing
PSCs,
it
crucial
clear
comprehensive
understanding
degradation
mechanisms
perovskites
develop
mitigation
strategies.
This
review
provides
compendious
overview
pathways
observed
perovskites,
attributing
intrinsic
factors
related
materials
themselves
environmental
such
as
light,
heat,
moisture,
oxygen,
combined
effects.
The
impact
interface
electrode
on
PSCs
also
discussed.
Additionally,
various
strategies
mitigate
instability
issue
are
summarized.
Lastly,
challenges
prospects
achieving
durable
presented.
Advanced Energy Materials,
Год журнала:
2024,
Номер
14(17)
Опубликована: Янв. 28, 2024
Abstract
Low‐bandgap
mixed
tin
(Sn)‐lead
(Pb)
perovskite
solar
cells
promise
efficiency
beyond
the
pure‐Pb
ones.
However,
difference
in
interaction
rate
of
SnI
2
and
PbI
with
organic
salts
causes
spatial
distribution
heterogeneity
Sn
2+
Pb
Sn─Pb
layers.
This
a
Sn‐rich
surface,
which
can
trigger
more
severe
oxidation
nonradiative
recombination.
A
strategy,
introducing
indium
ion
(In
3+
)
into
precursor
solution
to
compete
when
reacting
is
developed.
Therefore,
nucleation
crystallization
films
are
well‐controlled,
leading
improved
film
quality
balanced
Sn/Pb
ratio
on
surface.
Additionally,
In
has
lower
reduction
potential
compared
generate
an
extra
energy
barrier
for
oxidation.
The
reduced
surface
result
accelerated
electron
transfer
carrier
recombination
rate.
modified
devices
achieve
power
conversion
(PCE)
23.34%,
representing
one
highest
PCEs
made
PCBM.
Abstract
Tin‐lead
(Sn‐Pb)
mixed
perovskite
with
a
narrow
bandgap
is
an
ideal
candidate
for
single‐junction
solar
cells
approaching
the
Shockley‐Queisser
limit.
However,
due
to
easy
oxidation
of
Sn
2+
,
efficiency
and
stability
Sn‐Pb
(PSCs)
still
lag
far
behind
that
Pb‐based
cells.
Herein,
highly
efficient
stable
FA
0.5
MA
Pb
I
0.47
Br
0.03
compositional
PSCs
are
achieved
by
introducing
appropriate
amount
multifunctional
Tin
(II)
oxalate
(SnC
2
O
4
).
SnC
compensative
reductive
group
C
2−
effectively
passivates
cation
anion
defects
simultaneously,
thereby
leading
more
n‐type
films.
Benefitting
from
energy
level
alignment
suppression
bulk
nonradiative
recombination,
cell
treated
achieves
power
conversion
21.43%.
More
importantly,
chemically
suppresses
notorious
significant
enhancement
in
stability.
Particularly,
it
dramatically
improves
light
