Advanced Energy Materials,
Год журнала:
2020,
Номер
10(48)
Опубликована: Ноя. 10, 2020
Abstract
The
last
decade
has
seen
remarkable
advancements
in
the
field
of
perovskite
materials
and
photovoltaic
technologies.
One
their
most
extraordinary
characteristics
is
high
quality
layers
that
can
be
obtained
by
“dirty
processing”
from
solution
at
low
temperatures.
Alternatively,
perovskites
also
deposited
thermal
evaporation,
a
clean,
solvent‐free
process,
which
well
established
for
many
industrial
applications.
Although
vast
majority
research
reports
focus
on
solution‐processing
as
deposition
method
solar
cells,
thermally
evaporated
cells
are
closing
performance
gap
with
several
efficiencies
above
20%.
In
this
Progress
Report,
two
methods
briefly
introduced,
key
developments
devices
based
each
technique
outlined,
challenges
future
possibilities
discussed.
Science,
Год журнала:
2022,
Номер
377(6605), С. 531 - 534
Опубликована: Июль 28, 2022
In
halide
perovskite
solar
cells
the
formation
of
secondary-phase
excess
lead
iodide
(PbI2)
has
some
positive
effects
on
power
conversion
efficiency
(PCE)
but
can
be
detrimental
to
device
stability
and
large
hysteresis
in
voltage
sweeps.
We
converted
PbI2
into
an
inactive
(PbI2)2RbCl
compound
by
RbCl
doping,
which
effectively
stabilizes
phase.
obtained
a
certified
PCE
25.6%
for
FAPbI3
(FA,
formamidinium)
basis
this
strategy.
Devices
retained
96%
their
original
values
after
1000
hours
shelf
storage
80%
500
thermal
testing
at
85°C.
Science,
Год журнала:
2022,
Номер
376(6588), С. 73 - 77
Опубликована: Март 31, 2022
If
perovskite
solar
cells
(PSCs)
with
high
power
conversion
efficiencies
(PCEs)
are
to
be
commercialized,
they
must
achieve
long-term
stability,
which
is
usually
assessed
accelerated
degradation
tests.
One
of
the
persistent
obstacles
for
PSCs
has
been
successfully
passing
damp-heat
test
(85°C
and
85%
relative
humidity),
standard
verifying
stability
commercial
photovoltaic
(PV)
modules.
We
fabricated
damp
heat-stable
by
tailoring
dimensional
fragments
two-dimensional
layers
formed
at
room
temperature
oleylammonium
iodide
molecules;
these
passivate
surface
electron-selective
contact.
The
resulting
inverted
deliver
a
24.3%
PCE
retain
>95%
their
initial
value
after
>1000
hours
conditions,
thereby
meeting
one
critical
industrial
standards
PV
Science,
Год журнала:
2023,
Номер
380(6643), С. 404 - 409
Опубликована: Апрель 27, 2023
Controlling
the
perovskite
morphology
and
defects
at
buried
perovskite-substrate
interface
is
challenging
for
inverted
solar
cells.
In
this
work,
we
report
an
amphiphilic
molecular
hole
transporter,
(2-(4-(bis(4-methoxyphenyl)amino)phenyl)-1-cyanovinyl)phosphonic
acid,
that
features
a
multifunctional
cyanovinyl
phosphonic
acid
group
forms
superwetting
underlayer
deposition,
which
enables
high-quality
films
with
minimized
interface.
The
resulting
film
has
photoluminescence
quantum
yield
of
17%
Shockley-Read-Hall
lifetime
nearly
7
microseconds
achieved
certified
power
conversion
efficiency
(PCE)
25.4%
open-circuit
voltage
1.21
volts
fill
factor
84.7%.
addition,
1-square
centimeter
cells
10-square
minimodules
show
PCEs
23.4
22.0%,
respectively.
Encapsulated
modules
exhibited
high
stability
under
both
operational
damp
heat
test
conditions.
Science,
Год журнала:
2024,
Номер
384(6692), С. 189 - 193
Опубликована: Апрель 11, 2024
Inverted
(pin)
perovskite
solar
cells
(PSCs)
afford
improved
operating
stability
in
comparison
to
their
nip
counterparts
but
have
lagged
power
conversion
efficiency
(PCE).
The
energetic
losses
responsible
for
this
PCE
deficit
pin
PSCs
occur
primarily
at
the
interfaces
between
and
charge-transport
layers.
Additive
surface
treatments
that
use
passivating
ligands
usually
bind
a
single
active
binding
site:
This
dense
packing
of
electrically
resistive
passivants
perpendicular
may
limit
fill
factor
PSCs.
We
identified
two
neighboring
lead(II)
ion
(Pb
Science,
Год журнала:
2021,
Номер
372(6548), С. 1327 - 1332
Опубликована: Июнь 17, 2021
Suppressing
nucleation
over
large
areas
Although
formamidinium-based
lead
iodide
(PbI
2
)
perovskites
have
a
favorable
bandgap
and
good
thermal
stability,
the
difficulty
in
controlling
makes
it
difficult
to
grow
high-quality,
large-area
films
compared
with
methylammonium
counterparts.
Bu
et
al.
show
that
adding
N
-methyl-2-pyrrolidone
perovskite
precursors
forms
an
adduct
PbI
promotes
formation
of
desired
black
α-phase
at
room
temperature.
The
addition
potassium
hexafluorophosphate
eliminated
hysteresis
by
passivating
interfacial
defects
promoted
long-term
stability
85°C
unencapsulated
devices.
Large-area
modules
(17
square
centimeters)
achieved
power
conversion
efficiencies
20.4%.
Science
,
abh1035,
this
issue
p.
1327
Science,
Год журнала:
2023,
Номер
379(6633), С. 690 - 694
Опубликована: Фев. 16, 2023
Lewis
base
molecules
that
bind
undercoordinated
lead
atoms
at
interfaces
and
grain
boundaries
(GBs)
are
known
to
enhance
the
durability
of
metal
halide
perovskite
solar
cells
(PSCs).
Using
density
functional
theory
calculations,
we
found
phosphine-containing
have
strongest
binding
energy
among
members
a
library
studied
herein.
Experimentally,
best
inverted
PSC
treated
with
1,3-bis(diphenylphosphino)propane
(DPPP),
diphosphine
passivates,
binds,
bridges
GBs,
retained
power
conversion
efficiency
(PCE)
slightly
higher
than
its
initial
PCE
~23%
after
continuous
operation
under
simulated
AM1.5
illumination
maximum
point
~40°C
for
>3500
hours.
DPPP-treated
devices
showed
similar
increase
in
being
kept
open-circuit
conditions
85°C
>1500
The
A
cation
in
ABX3
organic-inorganic
lead
halide
perovskites
(OLHPs)
was
conventionally
believed
to
hardly
affect
their
optoelectronic
properties.
However,
more
recent
developments
have
unraveled
the
critical
role
of
regulation
physicochemical
and
properties
OLHPs.
We
review
important
breakthroughs
enabled
by
versatility
highlight
potential
opportunities
unanswered
questions
related
Nano-Micro Letters,
Год журнала:
2021,
Номер
13(1)
Опубликована: Июль 7, 2021
Abstract
Perovskite
solar
cells
(PSCs)
emerging
as
a
promising
photovoltaic
technology
with
high
efficiency
and
low
manufacturing
cost
have
attracted
the
attention
from
all
over
world.
Both
stability
of
PSCs
increased
steadily
in
recent
years,
research
on
reducing
lead
leakage
developing
eco-friendly
lead-free
perovskites
pushes
forward
commercialization
step
by
step.
This
review
summarizes
main
progress
2020
2021
aspects
efficiency,
stability,
perovskite-based
tandem
devices,
PSCs.
Moreover,
brief
discussion
development
PSC
modules
its
challenges
toward
practical
application
is
provided.
Science,
Год журнала:
2023,
Номер
382(6672), С. 810 - 815
Опубликована: Ноя. 16, 2023
Compared
with
the
n-i-p
structure,
inverted
(p-i-n)
perovskite
solar
cells
(PSCs)
promise
increased
operating
stability,
but
these
photovoltaic
often
exhibit
lower
power
conversion
efficiencies
(PCEs)
because
of
nonradiative
recombination
losses,
particularly
at
perovskite/C60
interface.
We
passivated
surface
defects
and
enabled
reflection
minority
carriers
from
interface
into
bulk
using
two
types
functional
molecules.
used
sulfur-modified
methylthio
molecules
to
passivate
suppress
through
strong
coordination
hydrogen
bonding,
along
diammonium
repel
reduce
contact-induced
achieved
field-effect
passivation.
This
approach
led
a
fivefold
longer
carrier
lifetime
one-third
photoluminescence
quantum
yield
loss
certified
quasi-steady-state
PCE
25.1%
for
PSCs
stable
operation
65°C
>2000
hours
in
ambient
air.
also
fabricated
monolithic
all-perovskite
tandem
28.1%
PCE.
