Advanced Materials,
Год журнала:
2024,
Номер
36(23)
Опубликована: Фев. 16, 2024
Inverted
inorganic
perovskite
solar
cells
(PSCs)
is
potential
as
the
top
in
tandem
configurations,
owing
to
ideal
bandgap,
good
thermal
and
light
stability
of
perovskites.
However,
challenges
such
mismatch
energy
levels
between
charge
transport
layer
perovskite,
significant
non-radiative
recombination
caused
by
surface
defects,
poor
water
have
led
urgent
need
for
further
improvement
performance
inverted
PSCs.
Herein,
fabrication
efficient
stable
CsPbI
Angewandte Chemie International Edition,
Год журнала:
2021,
Номер
60(43), С. 23164 - 23170
Опубликована: Авг. 18, 2021
Abstract
Iodine
vacancies
(V
I
)
and
undercoordinated
Pb
2+
on
the
surface
of
all‐inorganic
perovskite
films
are
mainly
responsible
for
nonradiative
charge
recombination.
An
environmentally
benign
material,
histamine
(HA),
is
used
to
passivate
V
in
films.
A
theoretical
study
shows
that
HA
bonds
film
via
a
Lewis
base–acid
interaction;
an
additional
hydrogen
bond
(H‐bond)
strengthens
such
interaction
owing
favorable
molecular
configuration
HA.
Undercoordinated
clusters
passivated,
leading
significantly
reduced
trap
density
prolonged
lifetime
within
passivation
also
induces
upward
shift
energy
band
edge
layer,
facilitating
interfacial
hole
transfer.
The
combination
above
raises
solar
cell
efficiency
from
19.5
20.8
%
under
100
mW
cm
−2
illumination,
highest
so
far
inorganic
metal
halide
cells
(PSCs).
Advanced Materials,
Год журнала:
2022,
Номер
34(50)
Опубликована: Сен. 14, 2022
Exceptional
power
conversion
efficiency
(PCE)
of
25.7%
in
perovskite
solar
cells
(PSCs)
has
been
achieved,
which
is
comparable
with
their
traditional
rivals
(Si-based
cells).
However,
commercialization-worthy
and
long-term
stability
remain
a
challenge.
In
this
regard,
there
are
increasing
studies
focusing
on
the
interface
engineering
PSC
devices
to
overcome
poor
technical
readiness.
Herein,
roles
electrode
materials
interfaces
PSCs
discussed
terms
PCEs
stability.
All
current
knowledge
factors
responsible
for
rapid
intrinsic
external
degradation
presented.
Then,
carbonaceous
as
substitutes
noble
metals
focused
on,
along
recent
research
progress
carbon-based
PSCs.
Furthermore,
sub-category
PSCs,
that
is,
flexible
considered
type
exceptional
source
due
high
power-to-weight
ratios
figures
merit
next-generation
wearable
electronics.
Last,
future
perspectives
directions
discussed,
an
emphasis
commercialization.
Angewandte Chemie International Edition,
Год журнала:
2022,
Номер
61(33)
Опубликована: Июнь 1, 2022
All-inorganic
CsPbI3
perovskite
presents
preeminent
chemical
stability
and
a
desirable
band
gap
as
the
front
absorber
for
perovskite/silicon
tandem
solar
cells.
Unfortunately,
cells
(PSCs)
still
show
low
efficiency
due
to
high
density
of
defects
in
solution-prepared
films.
Herein,
three
kinds
hydrazide
derivatives
(benzoyl
hydrazine
(BH),
formohydrazide
(FH)
benzamide
(BA))
are
designed
reduce
defect
stabilize
phase
.
Calculation
characterization
results
corroborate
that
carboxyl
groups
BH
form
strong
bonds
with
Pb2+
ions,
resulting
synergetic
double
coordination.
In
addition,
group
also
forms
hydrogen
bond
iodine
assist
Consequently,
20.47
%
is
achieved,
which
highest
PCE
among
all
pure
-based
PSCs
reported
date.
an
unencapsulated
device
showed
excellent
ambient
air.
Advanced Materials,
Год журнала:
2021,
Номер
34(10)
Опубликована: Дек. 29, 2021
All-inorganic
cesium
lead
triiodide
(CsPbI3
)
perovskite
is
well
known
for
its
unparalleled
stability
at
high
temperatures
up
to
500
°C
and
under
oxidative
chemical
stresses.
However,
upscaling
solar
cells
via
ambient
printing
suffers
from
imperfect
crystal
quality
defects
caused
by
uncontrollable
crystallization.
Here,
the
incorporation
of
a
low
concentration
novel
ionic
liquid
reported
as
being
promising
managing
in
CsPbI3
films,
interfacial
energy
alignment,
device
fabricated
blade-coating.
Both
theoretical
simulations
experimental
measurements
reveal
that
successfully
regulates
thin-film
growth
decrease
grain
boundaries,
strongly
coordinates
with
undercoordinated
Pb2+
passivate
iodide
vacancy
defects,
aligns
interface
barrier
electron-transporting
layer,
relaxes
lattice
strain
promote
phase
stability.
Consequently,
printed
power
conversion
efficiency
20.01%
1
sun
illumination
(100
mW
cm-2
37.24%
indoor
light
(1000
lux,
365
µW
are
achieved;
both
highest
all-inorganic
corresponding
applications.
Furthermore,
bare
show
an
impressive
long-term
only
≈5%
PCE
degradation
after
1000
h
aging
conditions.
Angewandte Chemie International Edition,
Год журнала:
2022,
Номер
62(6)
Опубликована: Дек. 8, 2022
Minimizing
surface
defect
is
vital
to
further
improve
power
conversion
efficiency
(PCE)
and
stability
of
inorganic
perovskite
solar
cells
(PSCs).
Herein,
we
designed
a
passivator
trifluoroacetamidine
(TFA)
suppress
CsPbI3-x
Brx
film
defects.
The
amidine
group
TFA
can
strongly
chelate
onto
the
iodide
vacancy,
strengthened
by
additional
hydrogen
bonds.
Moreover,
three
fluorine
atoms
allow
strong
intermolecular
connection
via
bonds,
thus
constructing
robust
shield
against
moisture.
TFA-treated
PSCs
exhibit
remarkably
suppressed
recombination,
yielding
record
PCEs
21.35
%
17.21
for
0.09
cm2
1.0
device
areas,
both
which
are
highest
all-inorganic
so
far.
also
achieves
PCE
39.78
under
indoor
illumination,
photovoltaic
devices.
Furthermore,
greatly
improves
ambient
preserving
93
initial
after
960
h.
Nano-Micro Letters,
Год журнала:
2023,
Номер
15(1)
Опубликована: Март 31, 2023
Abstract
Lead
halide
perovskite
solar
cells
(PSCs)
have
become
a
promising
next-generation
photovoltaic
technology
due
to
their
skyrocketed
power
conversion
efficiency.
However,
the
device
stability
issues
may
restrict
commercial
applications,
which
are
dominated
by
various
chemical
reactions
of
layers.
Hence,
comprehensive
illustration
on
films
in
PSCs
is
urgently
needed.
In
this
review
article,
under
different
environmental
conditions
(e.g.,
moisture,
oxygen,
light)
and
with
charge
transfer
materials
metal
electrodes
systematically
elucidated.
Effective
strategies
for
suppressing
degradation
perovskites,
such
as
buffer
layer
introduction
additives
engineering,
specified.
Finally,
conclusions
outlooks
field
proposed.
The
will
provide
guideline
material
engineering
design
PSCs.
Materials Chemistry Frontiers,
Год журнала:
2021,
Номер
6(4), С. 400 - 417
Опубликована: Дек. 21, 2021
Metal
halide
perovskite
solar
cells
(PSCs)
continue
to
improve
their
power
conversion
efficiency
over
25.5%,
which
is
at
the
same
level
as
silicon
cells.
