Small Methods,
Journal Year:
2021,
Volume and Issue:
6(2)
Published: Dec. 23, 2021
Abstract
The
reliability
of
semiconductor
materials
with
electrical
and
optical
properties
are
connected
to
their
structures.
elastic
strain
field
tilt
analysis
the
crystal
lattice,
detectable
by
variation
in
position
shape
diffraction
peaks,
is
used
quantify
defects
investigate
mobility.
exploitation
high‐resolution
X‐ray
diffraction‐based
methods
for
evaluation
structural
devices
reviewed.
An
efficient
non‐destructive
characterization
possible
parameters
such
as,
lattice
tilt,
layer
composition
thickness,
mismatch,
dislocation
density.
description
specific
experimental
geometries
scanning
provided.
Today's
based
evaluated
compared,
also
respect
applicability
limits.
goal
understand
close
relationship
between
defects.
For
different
material
systems,
appropriate
analytical
highlighted.
Science,
Journal Year:
2022,
Volume and Issue:
376(6591), P. 416 - 420
Published: April 21, 2022
Further
enhancing
the
performance
and
stability
of
inverted
perovskite
solar
cells
(PSCs)
is
crucial
for
their
commercialization.
We
report
that
functionalization
multication
halide
interfaces
with
an
organometallic
compound,
ferrocenyl-bis-thiophene-2-carboxylate
(FcTc2),
simultaneously
enhanced
efficiency
PSCs.
The
resultant
devices
achieved
a
power
conversion
25.0%
maintained
>98%
initial
after
continuously
operating
at
maximum
point
1500
hours
under
simulated
AM1.5
illumination.
Moreover,
FcTc2-functionalized
passed
international
standards
mature
photovoltaics
(IEC61215:2016)
have
exhibited
high
damp
heat
test
(85°C
85%
relative
humidity).
Journal of the American Chemical Society,
Journal Year:
2020,
Volume and Issue:
142(47), P. 20134 - 20142
Published: Nov. 16, 2020
Passivating
surface
and
bulk
defects
of
perovskite
films
has
been
proven
to
be
an
effective
way
minimize
nonradiative
recombination
losses
in
solar
cells
(PVSCs).
The
lattice
interference
perturbation
atomic
periodicity
at
the
surfaces
often
significantly
affect
material
properties
device
efficiencies.
By
tailoring
terminal
groups
on
modifying
chemical
environment,
can
reduced
enhance
photovoltaic
performance
stability
derived
PVSCs.
Here,
we
report
a
rationally
designed
bifunctional
molecule,
piperazinium
iodide
(PI),
containing
both
R2NH
R2NH2+
same
six-membered
ring,
behaving
as
electron
donor
acceptor
react
with
different
surface-terminating
ends
films.
resulting
after
defect
passivation
show
released
residual
stress,
suppressed
loss,
more
n-type
characteristics
for
sufficient
energy
transfer.
Consequently,
charge
is
result
high
open-circuit
voltage
(VOC)
1.17
V
VOC
loss
0.33
V.
A
very
power
conversion
efficiency
(PCE)
23.37%
(with
22.75%
certified)
could
achieved,
which
highest
value
reported
inverted
Our
work
reveals
using
molecules
simultaneously
stability.
Angewandte Chemie International Edition,
Journal Year:
2019,
Volume and Issue:
59(17), P. 6676 - 6698
Published: Aug. 1, 2019
In
several
photovoltaic
(PV)
technologies,
the
presence
of
electronic
defects
within
semiconductor
band
gap
limit
efficiency,
reproducibility,
as
well
lifetime.
Metal
halide
perovskites
(MHPs)
have
drawn
great
attention
because
their
excellent
properties
that
can
be
achieved
even
without
a
very
strict
film-growth
control
processing.
Much
has
been
done
theoretically
in
describing
different
point
MHPs.
Herein,
we
discuss
experimental
challenges
thoroughly
characterizing
MHPs
such
as,
assignment
type
defects,
densities,
and
energy
positions
induced
by
these
defects.
The
second
topic
this
Review
is
passivation
strategies.
Based
on
literature
survey,
types
are
important
to
consider
need
minimized
examined.
A
complete
fundamental
understanding
defect
nature
needed
further
improve
optoelectronic
functionalities.
ACS Energy Letters,
Journal Year:
2020,
Volume and Issue:
5(8), P. 2742 - 2786
Published: July 27, 2020
Because
interfacial
nonradiative
recombination
(NRR)
has
a
significant
influence
on
device
performance,
the
minimization
of
NRR
losses
through
interface
engineering
especially
for
perovskite-related
interfaces
is
key
to
achieving
efficient,
stable,
and
hysteresis-free
perovskite
solar
cells
(PSCs).
In
light
important
contributions
rapid
development
PSCs,
systematic
investigation
analysis
latest
research
advancements
urgently
needed.
This
Review
aims
at
providing
innovative
insights
into
further
improvement
in
power
conversion
efficiency
(PCE)
toward
Shockley–Queisser
limit
stability
fulfilling
commercially
available
standard
protocols
as
well
reduction
hysteresis.
this
Review,
roles
importance
PSCs
are
first
highlighted
from
viewpoint
structure,
working
principles,
carrier
dynamics.
The
main
origins
(i.e.,
defects,
imperfect
energy
level
alignment
(ELA),
reactions)
then
discussed
detail
along
with
characterization
techniques.
Subsequently,
effects
PCE,
stability,
hysteresis
investigated.
Strategies
mitigating
provided
terms
defect
passivation,
ELA
modulation,
suppression
reaction,
where
critical
functional
groups
modifiers
emphasized.
Finally,
we
provide
an
outlook
hysteresis-free,
long-term
operationally
stable
achievable
via
engineering.
Advanced Materials,
Journal Year:
2021,
Volume and Issue:
34(8)
Published: Dec. 5, 2021
3D
perovskite
solar
cells
(PSCs)
have
shown
great
promise
for
use
in
next-generation
photovoltaic
devices.
However,
some
challenges
need
to
be
addressed
before
their
commercial
production,
such
as
enormous
defects
formed
on
the
surface,
which
result
severe
SRH
recombination,
and
inadequate
material
interplay
between
composition,
leading
thermal-,
moisture-,
light-induced
degradation.
2D
perovskites,
organic
layer
functions
a
protective
barrier
block
erosion
of
moisture
or
ions,
recently
emerged
attracted
increasing
attention
because
they
exhibit
significant
robustness.
Inspired
by
this,
surface
passivation
employing
perovskites
deposited
top
counterparts
has
triggered
new
wave
research
simultaneously
achieve
higher
efficiency
stability.
Herein,
we
exploited
vast
amount
literature
comprehensively
summarize
recent
progress
2D/3D
heterostructure
PSCs
using
passivation.
The
review
begins
with
an
introduction
crystal
structure,
followed
advantages
combination
perovskites.
Then,
strategies,
optoelectronic
properties,
enhanced
stability,
performance
are
systematically
discussed.
Finally,
perspectives
techniques
offer
insight
into
further
improved
future
proposed.
Nano-Micro Letters,
Journal Year:
2021,
Volume and Issue:
13(1)
Published: July 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.
Energy & Environmental Science,
Journal Year:
2020,
Volume and Issue:
13(11), P. 4017 - 4056
Published: Jan. 1, 2020
Passivation
strategies,
including
film
formation,
post-treatment
and
interlayer
engineering,
are
summarized
based
on
an
overview
of
the
variety
defects
in
PSCs.
Advanced Materials,
Journal Year:
2021,
Volume and Issue:
34(8)
Published: Dec. 4, 2021
Interfacial
modification,
which
serves
multiple
roles,
is
vital
for
the
fabrication
of
efficient
and
stable
perovskite
solar
cells.
Here,
a
multifunctional
interfacial
material,
biguanide
hydrochloride
(BGCl),
introduced
between
tin
oxide
(SnO2
)
to
enhance
electron
extraction,
as
well
crystal
growth
perovskite.
The
BGCl
can
chemically
link
SnO2
through
Lewis
coordination/electrostatic
coupling
help
anchor
PbI2
.
Better
energetic
alignment,
reduced
defects,
homogeneous
crystallites
are
achieved,
yielding
an
impressive
certified
power
conversion
efficiency
(PCE)
24.4%,
with
open-circuit
voltage
1.19
V
drastically
improved
fill
factor
82.4%.
More
importantly,
unencapsulated
device
maintains
95%
its
initial
PCE
after
aging
over
500
h
at
20
°C
30%
relative
humidity
in
ambient
conditions.
These
results
suggest
that
incorporation
promising
strategy
modify
interface
control
crystallization
perovskite,
toward
attainment
highly
cells
other
perovskite-based
electronics.
