Science,
Journal Year:
2022,
Volume and Issue:
377(6603), P. 302 - 306
Published: June 23, 2022
The
performance
of
perovskite
solar
cells
with
inverted
polarity
(p-i-n)
is
still
limited
by
recombination
at
their
electron
extraction
interface,
which
also
lowers
the
power
conversion
efficiency
(PCE)
p-i-n
perovskite-silicon
tandem
cells.
A
MgF
x
interlayer
thickness
~1
nanometer
perovskite/C
60
interface
favorably
adjusts
surface
energy
layer
through
thermal
evaporation,
facilitates
efficient
and
displaces
C
from
to
mitigate
nonradiative
recombination.
These
effects
enable
a
champion
open-circuit
voltage
1.92
volts,
an
improved
fill
factor
80.7%,
independently
certified
stabilized
PCE
29.3%
for
monolithic
cell
square
centimeter
in
area.
retained
~95%
its
initial
after
damp-heat
testing
(85°C
85%
relative
humidity)
>1000
hours.
Communications Materials,
Journal Year:
2023,
Volume and Issue:
4(1)
Published: Jan. 5, 2023
Abstract
Organic/inorganic
metal
halide
perovskites
attract
substantial
attention
as
key
materials
for
next-generation
photovoltaic
technologies
due
to
their
potential
low
cost,
high
performance,
and
solution
processability.
The
unique
properties
of
the
rapid
advances
that
have
been
made
in
solar
cell
performance
facilitated
integration
into
a
broad
range
practical
applications,
including
tandem
cells,
building-integrated
photovoltaics,
space
with
batteries
supercapacitors
energy
storage
systems,
photovoltaic-driven
catalysis.
In
this
Review,
we
outline
notable
achievements
these
photovoltaic-integrated
technologies.
Outstanding
challenges
future
perspectives
development
fields
applications
are
discussed.
Science,
Journal Year:
2022,
Volume and Issue:
377(6605), P. 495 - 501
Published: July 28, 2022
Record
power
conversion
efficiencies
(PCEs)
of
perovskite
solar
cells
(PSCs)
have
been
obtained
with
the
organic
hole
transporter
2,2',7,7'-tetrakis(N,N-di-p-methoxyphenyl-amine)9,9'-spirobifluorene
(spiro-OMeTAD).
Conventional
doping
spiro-OMeTAD
hygroscopic
lithium
salts
and
volatile
4-tert-butylpyridine
is
a
time-consuming
process
also
leads
to
poor
device
stability.
We
developed
new
strategy
for
that
avoids
post-oxidation
by
using
stable
radicals
as
dopant
ionic
modulator
(referred
ion-modulated
radical
doping).
achieved
PCEs
>25%
much-improved
stability
under
harsh
conditions.
The
provide
polarons
instantly
increase
conductivity
work
function
(WF),
further
modulate
WF
affecting
energetics
polarons.
This
semiconductor
strategy,
which
decouples
tunability,
could
inspire
optimization
in
other
optoelectronic
devices.
Science,
Journal Year:
2022,
Volume and Issue:
377(6603), P. 302 - 306
Published: June 23, 2022
The
performance
of
perovskite
solar
cells
with
inverted
polarity
(p-i-n)
is
still
limited
by
recombination
at
their
electron
extraction
interface,
which
also
lowers
the
power
conversion
efficiency
(PCE)
p-i-n
perovskite-silicon
tandem
cells.
A
MgF
x
interlayer
thickness
~1
nanometer
perovskite/C
60
interface
favorably
adjusts
surface
energy
layer
through
thermal
evaporation,
facilitates
efficient
and
displaces
C
from
to
mitigate
nonradiative
recombination.
These
effects
enable
a
champion
open-circuit
voltage
1.92
volts,
an
improved
fill
factor
80.7%,
independently
certified
stabilized
PCE
29.3%
for
monolithic
cell
square
centimeter
in
area.
retained
~95%
its
initial
after
damp-heat
testing
(85°C
85%
relative
humidity)
>1000
hours.
