Materials Science for Energy Technologies,
Год журнала:
2023,
Номер
7, С. 61 - 72
Опубликована: Июль 18, 2023
Using
first-principles
calculations,
in
this
piece
of
work,
authors
have
investigated
the
physical
properties
Ra2LaNbO6
double
perovskite
by
employing
linearized
augmented
plane
wave
(LAPW)
method.
Structural
and
electronic
are
determined
using
LDA,
GGA
(WC
PBE),
LDA
+
mBJ,
mBJ
potentials.
We
found
that
is
an
indirect
band
gap
(Eg
=
2.4
eV)
semiconductor.
Its
elastic
thermodynamic
parameters
demonstrate
its
stability.
optical
study
indicates
material
opens
door
to
applications
devices
such
as
photodetectors,
solar
cells,
superlenses,
fibers,
filters,
electromagnetic
shielding
devices,
photovoltaic
etc.
This
very
good
for
practical
implementation
thermoelectric
both
p-
n-type
extends
interest
experimentalists
further
investigations.
Thus,
thermodynamically
stable
identified
a
potential
candidate
devices.
Energy & Environmental Science,
Год журнала:
2022,
Номер
15(11), С. 4700 - 4709
Опубликована: Янв. 1, 2022
Both
improving
crystallization
and
passivating
the
defects
of
a
perovskite
film
have
been
realized
by
introducing
2-amidinopyrimidine
hydrochloride,
which
resulted
in
an
efficiency
25.17%
along
with
long-term
operational
stability.
Advanced Materials,
Год журнала:
2022,
Номер
34(17)
Опубликована: Март 2, 2022
Abstract
Reducing
the
electronic
defects
in
perovskite
films
has
become
a
substantial
challenge
to
further
boost
photovoltaic
performance
of
solar
cells.
Here,
2D
(NpMA)
2
PbI
4
and
1‐naphthalenemethylammonium
iodide
(NpMAI)
are
separately
introduced
into
precursor
solutions
regulate
crystal
growth
2D/3D
film
using
two‐step
deposition
method.
The
modulated
shows
significantly
improved
quality
with
enlarged
grain
size
from
≈500
nm
over
1000
nm,
which
greatly
reduces
grain‐boundary
defects,
improves
charge
carrier
lifetime,
hinders
ionic
diffusion.
As
result,
best‐performing
device
high
power
conversion
efficiency
(PCE)
24.37%
for
small‐area
(0.10
cm
−2
)
superior
PCE
22.26%
large‐area
(1.01
device.
Importantly,
unencapsulated
dramatically
operational
stability
maintains
98%
its
initial
after
1500
h
by
maximum
point
(MPP)
tracking
under
continuous
light
irradiation.
Advanced Materials,
Год журнала:
2023,
Номер
35(18)
Опубликована: Фев. 17, 2023
Flexible
perovskite
solar
cells
(pero-SCs)
are
the
best
candidates
to
complement
traditional
silicon
SCs
in
portable
power
applications.
However,
their
mechanical,
operational,
and
ambient
stabilities
still
unable
meet
practical
demands
because
of
natural
brittleness,
residual
tensile
strain,
high
defect
density
along
grain
boundaries.
To
overcome
these
issues,
a
cross-linkable
monomer
TA-NI
with
dynamic
covalent
disulfide
bonds,
H-bonds,
ammonium
is
carefully
developed.
The
cross-linking
acts
as
"ligaments"
attached
on
These
consisting
elastomers
1D
perovskites
can
not
only
passivate
boundaries
enhance
moisture
resistance
but
also
release
strain
mechanical
stress
3D
films.
More
importantly,
elastomer
repair
bending-induced
cracks
film
self-healing
characteristics.
resultant
flexible
pero-SCs
exhibit
promising
improvements
efficiency,
record
values
(23.84%
21.66%)
obtained
for
0.062
1.004
cm2
devices;
devices
show
overall
improved
T90
>20
000
bending
cycles,
operational
stability
>1248
h,
(relative
humidity
=
30%)
>3000
h.
This
strategy
paves
new
way
industrial-scale
development
high-performance
pero-SCs.
Advanced Materials,
Год журнала:
2023,
Номер
35(31)
Опубликована: Март 4, 2023
Abstract
The
interface
tailoring
is
crucial
for
the
efficiency
and
stability
of
Perovskite
Solar
Cells
(PSCs).
reported
engineering
primarily
focuses
on
energy
level
turning
trap
state
passivation
to
improve
photovoltaic
performance
PSCs.
In
this
review,
molecule
modifications
are
classified
according
basics
electron
transfer
mechanisms
materials.
An
in‐depth
analysis
modification
passivation,
as
well
universal
Density
Functional
Theory
(DFT)
method
employed
in
tailoring.
addition,
strategies
address
environmental
protection
large‐scale
mini‐modules
fabrication
by
also
discussed.
This
review
can
guide
researchers
understanding
design
materials
efficient,
stable,
eco‐friendly
Advanced Materials,
Год журнала:
2023,
Номер
36(7)
Опубликована: Окт. 7, 2023
The
buried
interface
of
the
perovskite
layer
has
a
profound
influence
on
its
film
morphology,
defect
formation,
and
aging
resistance
from
outset,
therefore,
significantly
affects
quality
device
performance
derived
solar
cells.
Especially
for
FAPbI
ACS Energy Letters,
Год журнала:
2022,
Номер
7(10), С. 3685 - 3694
Опубликована: Окт. 3, 2022
The
reduction
of
defect
density
in
perovskite
solar
cells
(PSCs)
is
the
key
to
suppress
nonradiative
recombination,
which
critical
achieve
high
device
efficiency.
buried
surfaces
films
are
more
prone
deterioration
and
formation
than
bulk
upper
due
continuous
solvent
temperature
erosion
processes.
Here,
a
buried-interface
strategy
using
Rb-based
perovskitoids
proposed.
introduction
rubidium
halide
results
deuterogenic
perovskitoid
"scaffold",
effectively
enhances
crystallization
film
passivates
defects
at
surface.
With
this
strategy,
power
conversion
efficiency
increases
from
23.26%
25.14%,
thus
providing
simple
effective
way
improve
performance
PSCs.
Advanced Materials,
Год журнала:
2023,
Номер
35(52)
Опубликована: Апрель 17, 2023
Abstract
In
recent
years,
organic‐inorganic
halide
perovskites
are
now
emerging
as
the
most
attractive
alternatives
for
next‐generation
photovoltaic
devices,
due
to
their
excellent
optoelectronic
characteristics
and
low
manufacturing
cost.
However,
resultant
perovskite
solar
cells
(PVSCs)
intrinsically
unstable
owing
ion
migration,
which
severely
impedes
performance
enhancement,
even
with
device
encapsulation.
There
is
no
doubt
that
investigation
of
migration
summarization
advances
in
inhibition
strategies
necessary
develop
“state‐of‐the‐art”
PVSCs
high
intrinsic
stability
accelerated
commercialization.
This
review
systematically
elaborates
on
generation
fundamental
mechanisms
PVSCs,
impact
hysteresis,
phase
segregation,
operational
stability,
characterizations
PVSCs.
Then,
many
related
works
inhibiting
toward
highly
efficient
stable
summarized.
Finally,
perspectives
current
obstacles
prospective
boost
meet
all
requirements
commercialization
success
Advanced Energy Materials,
Год журнала:
2023,
Номер
13(13)
Опубликована: Фев. 15, 2023
Abstract
The
ionic
nature
of
the
organic‐inorganic
hybrid
perovskite
material
is
prone
to
react
with
different
functional
groups.
Here,
a
series
polar
molecules
permanent
dipole
moments
are
designed
modify
surface
termination.
It
observed
that
proper
interfacial
design
can
significantly
reduce
trap
state
density
for
effective
charge
transfer.
energy
level
substrate
be
adjusted
by
magnitude
and
direction
moment.
As
result,
high
24.54%
photo‐electric
conversion
efficiency
reached
introducing
pentafluoride
benzene
moieties
carboxylic
In
addition,
humidity
heat
stability
device
obviously
improved.
This
work
demonstrates
importance
chemical
interactions
at
termination
paves
way
further
enhancing
performance
solar
cells.
