Advanced Materials,
Год журнала:
2024,
Номер
36(26)
Опубликована: Апрель 13, 2024
Perovskite/organic
tandem
solar
cells
(PO-TSCs)
demonstrate
exceptional
suitability
for
emerging
applications
such
as
building-integrated
photovoltaics,
wearable
devices,
and
greenhouse
farming.
By
leveraging
the
distinctive
attributes
of
perovskite
organic
materials,
which
encompass
expanded
spectrum
utilization,
chemically
benign
solubility,
soft
nature,
PO-TSCs
position
themselves
ideal
candidates
high-performance
semi-transparent
photovoltaics
(ST-PVs).
Despite
these
advantages,
their
development
significantly
lags
behind
other
perovskite-based
counterparts,
perovskite/perovskite,
perovskite/silicon,
perovskite/Cu(In,
Ga)Se
Nature Communications,
Год журнала:
2024,
Номер
15(1)
Опубликована: Март 14, 2024
Abstract
Mixed
tin-lead
perovskite
solar
cells
have
driven
a
lot
of
passion
for
research
because
their
vital
role
in
all-perovskite
tandem
cells,
which
hold
the
potential
achieving
higher
efficiencies
compared
to
single-junction
counterparts.
However,
pronounced
disparity
crystallization
processes
between
tin-based
perovskites
and
lead-based
perovskites,
coupled
with
easy
Sn
2+
oxidation,
has
long
been
dominant
factor
contributing
high
defect
densities.
In
this
study,
we
propose
multidimensional
strategy
achieve
efficient
by
employing
functional
N-(carboxypheny)guanidine
hydrochloride
molecule.
The
tailored
molecule
plays
pivotal
manipulating
grain
growth
while
also
serving
as
preservative
effectively
inhibit
owing
strong
binding
tin
(II)
iodide
elevated
energy
barriers
oxidation.
Consequently,
exhibit
stabilized
power
conversion
efficiency
23.11%
can
maintain
97.45%
initial
value
even
after
3500
h
shelf
storage
an
inert
atmosphere
without
encapsulation.
We
further
integrate
into
two-terminal
monolithic
delivering
certified
27.35%.
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.
All-perovskite
tandem
solar
cells
(TSCs)
have
exhibited
higher
efficiencies
than
single-junction
perovskite
(PSCs)
but
still
suffer
from
the
unsatisfactory
performance
of
low-bandgap
(LBG)
tin-lead
(Sn-Pb)
subcells.
The
inherent
properties
PEDOT:PSS
are
crucial
to
high-performance
Sn-Pb
films
and
devices;
however,
underlying
mechanism
has
not
been
fully
explored
revealed.
Here,
we
report
a
facile
oxalic
acid
treatment
(OA-PEDOT:PSS)
precisely
regulate
its
work
function
surface
morphology.
OA-PEDOT:PSS
shows
larger
an
ordered
reorientation
fiber-shaped
film
morphology
with
efficient
hole
transport
pathways,
leading
formation
more
ideal
hole-selective
contact
for
suppressing
interfacial
nonradiative
recombination
losses.
Moreover,
induces
(100)
preferred
orientation
growth
higher-quality
films.
Last,
OA-PEDOT:PSS–tailored
LBG
PSC
yields
impressive
efficiency
up
22.56%
(certified
21.88%),
enabling
27.81%
all-perovskite
TSC
enhanced
operational
stability.
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.
Materials Futures,
Год журнала:
2024,
Номер
3(2), С. 022102 - 022102
Опубликована: Апрель 24, 2024
Abstract
Perovskite
(PVK)
solar
cells
(PSCs)
have
garnered
considerable
research
interest
owing
to
their
cost-effectiveness
and
high
efficiency.
A
systematic
annual
review
of
the
on
PSCs
is
essential
for
gaining
a
comprehensive
understanding
current
trends.
Herein,
analysis
papers
reporting
key
findings
in
2023
was
conducted.
Based
results,
were
categorized
into
six
classifications,
including
regular
n–i–p
PSCs,
inverted
p–i–n
PVK-based
tandem
cells,
PVK
modules,
device
stability,
lead
toxicity
green
solvents.
Subsequently,
detailed
overview
summary
advancements
within
each
classification
presented.
Overall,
this
serves
as
valuable
resource
guiding
future
endeavors
field
PSCs.
Energy & Environmental Science,
Год журнала:
2024,
Номер
17(7), С. 2512 - 2520
Опубликована: Янв. 1, 2024
This
study
reports
on
the
surface
charge
transfer
doping
of
narrow-bandgap
Sn/Pb
binary
metal
perovskites
with
benzyl
viologen.
The
as-fabricated
all
perovskite
two-terminal
tandem
solar
cell
exhibits
a
power
conversion
efficiency
26.33%.
Energy & Environmental Science,
Год журнала:
2024,
Номер
17(8), С. 2845 - 2855
Опубликована: Янв. 1, 2024
A
highly
efficient
and
stable
ideal-bandgap
perovskite
solar
cell
based
on
a
defect-less
formamidinium
(FA)
Sn–Pb
light-absorbing
layer
is
grown
fluorinated
substrate
via
top-down
crystallization.
