Energy & Environmental Science,
Journal Year:
2019,
Volume and Issue:
12(4), P. 1341 - 1348
Published: Jan. 1, 2019
The
structural
stability
of
mixed
A-site
perovskite
solar
cells
during
operation
is
observed
by
in
situ
XRD
and
the
de-mixing
behavior
described
calculating
Gibbs
free
energy
mixing.
ACS Nano,
Journal Year:
2021,
Volume and Issue:
15(7), P. 10775 - 10981
Published: June 17, 2021
Metal-halide
perovskites
have
rapidly
emerged
as
one
of
the
most
promising
materials
21st
century,
with
many
exciting
properties
and
great
potential
for
a
broad
range
applications,
from
photovoltaics
to
optoelectronics
photocatalysis.
The
ease
which
metal-halide
can
be
synthesized
in
form
brightly
luminescent
colloidal
nanocrystals,
well
their
tunable
intriguing
optical
electronic
properties,
has
attracted
researchers
different
disciplines
science
technology.
In
last
few
years,
there
been
significant
progress
shape-controlled
synthesis
perovskite
nanocrystals
understanding
applications.
this
comprehensive
review,
having
expertise
fields
(chemistry,
physics,
device
engineering)
joined
together
provide
state
art
overview
future
prospects
nanocrystal
research.
Chemical Reviews,
Journal Year:
2019,
Volume and Issue:
119(5), P. 3296 - 3348
Published: Feb. 13, 2019
Metal
halide
perovskites
represent
a
flourishing
area
of
research,
driven
by
both
their
potential
application
in
photo-voltaics
and
optoelectronics,
for
the
fundamental
science
underpinning
unique
optoelectronic
properties.
The
advent
colloidal
methods
synthesis
perovskite
nanocrystals
has
brought
to
attention
inter-esting
aspects
this
new
type
materials,
above
all
defect-tolerance.
This
review
aims
provide
an
updated
survey
fast-moving
field,
with
main
focus
on
synthesis.
We
examine
chemistry
ca-pability
different
synthetic
routes
control
shape,
size
optical
properties
resulting
nano-crystals.
also
up
date
overview
post-synthesis
transformations,
summarize
various
so-lution
processes
aimed
at
fabricating
perovskite-based
nanocomposites.
then
nanocrystals,
focusing
linear
properties,
effects
quantum
confinement
and,
then,
current
knowledge
exciton
binding
energies.
discuss
emergence
non-linear
phenomena
such
as
multiphoton
absorption,
biexcitons
carrier
multiplication.
At
last,
we
outlook
most
cogent
open
questions
possible
future
directions.
Angewandte Chemie International Edition,
Journal Year:
2019,
Volume and Issue:
58(44), P. 15596 - 15618
Published: March 12, 2019
Recently,
lead
halide-based
perovskites
have
become
one
of
the
hottest
topics
in
photovoltaic
research
because
their
excellent
optoelectronic
properties.
Among
them,
organic-inorganic
hybrid
perovskite
solar
cells
(PSCs)
made
very
rapid
progress
with
power
conversion
efficiency
(PCE)
now
at
23.7
%.
However,
intrinsically
unstable
nature
these
materials,
particularly
to
moisture
and
heat,
may
be
a
problem
for
long-term
stability.
Replacing
fragile
organic
group
more
robust
inorganic
Cs+
cations
forms
cesium
halide
system
(CsPbX3
,
X
is
halide)
as
all-inorganic
which
are
much
thermally
stable
often
other
factors.
From
first
report
2015
now,
PCE
CsPbX3
-based
PSCs
has
abruptly
increased
from
2.9
%
17.1
enhanced
In
this
Review,
we
summarize
field
up
propose
solutions
terms
development
bottlenecks,
attempt
boost
further
PSCs.
Advanced Materials,
Journal Year:
2018,
Volume and Issue:
30(32)
Published: June 8, 2018
Abstract
High‐efficiency
and
low‐cost
perovskite
solar
cells
(PVKSCs)
are
an
ideal
candidate
for
addressing
the
scalability
challenge
of
solar‐based
renewable
energy.
The
dynamically
evolving
research
field
PVKSCs
has
made
immense
progress
in
solving
inherent
challenges
capitalizing
on
their
unique
structure–property–processing–performance
traits.
This
review
offers
a
outlook
paths
toward
commercialization
from
interfacial
engineering
perspective,
relevant
to
both
specialists
nonspecialists
through
brief
introduction
background
field,
current
state‐of‐the‐art
evolution,
future
prospects.
multifaceted
role
interfaces
facilitating
PVKSC
development
is
explained.
Beneficial
impacts
diverse
charge‐transporting
materials
modifications
summarized.
In
addition,
improving
efficiency
stability
all
emerging
areas
design
also
evaluated.
authors'
integral
contributions
this
area
highlighted
fronts.
Finally,
opportunities
material
applications
along
with
scalability–durability–sustainability
considerations
pivotal
laboratory
industry
translation
presented.
ACS Energy Letters,
Journal Year:
2018,
Volume and Issue:
3(4), P. 970 - 978
Published: March 21, 2018
It
is
imperative
to
develop
a
large-aspect-ratio
grain-based
thin
film
with
low
trap
density
for
high-performance
inorganic
perovskite
CsPbI2Br
solar
cells.
Herein,
by
using
Mn2+
ion
doping
modulate
growth,
we
achieved
grains
aspect
ratios
as
high
8.
found
that
ions
insert
into
the
interstices
of
lattice
during
growth
process,
leading
suppressed
nucleation
and
decreased
rate.
The
combination
aids
in
achievement
larger
crystalline
increased
JSC
values
14.37
mA/cm2
FFs
large
80.0%.
Moreover,
excess
passivate
grain
boundary
surface
defects,
resulting
effectively
recombination
loss
improved
hole
extraction
efficiency,
which
enhances
built-in
electric
field
hence
increases
VOC
1.172
V.
As
result,
champion
device
achieves
stabilized
efficiency
13.47%,
13%
compared
only
11.88%
reference
device.
Advanced Energy Materials,
Journal Year:
2018,
Volume and Issue:
8(15)
Published: Jan. 24, 2018
Abstract
All‐inorganic
CsPbBrI
2
perovskite
has
great
advantages
in
terms
of
ambient
phase
stability
and
suitable
band
gap
(1.91
eV)
for
photovoltaic
applications.
However,
the
typically
used
structure
causes
reduced
device
performance,
primarily
due
to
large
recombination
at
interface
between
perovskite,
hole‐extraction
layer
(HEL).
In
this
paper,
an
efficient
solar
cell
(PSC)
with
a
dimensionally
graded
heterojunction
is
reported,
which
material
distributed
within
bulk–nanosheet–quantum
dots
or
3D–2D–0D
dimension‐profiled
so
that
energy
alignment
optimized
valence
conduction
bands
both
HEL
layers.
Specifically,
valence‐/conduction‐band
edge
leveraged
bend
synergistic
advantages:
combination
enhances
hole
extraction
efficiency
effectively
decreased
loss
during
hole‐transfer
process,
leading
enhanced
built‐in
electric
field,
hence
high
V
OC
as
much
1.19
V.
The
profiled
induces
continuously
upshifted
levels,
resulting
higher
J
SC
12.93
mA
cm
−2
fill
factor
80.5%,
therefore
record
power
conversion
(PCE)
12.39%.
As
far
it
known,
highest
PCE
perovskite‐based
PSC.
Advanced Energy Materials,
Journal Year:
2020,
Volume and Issue:
10(13)
Published: Jan. 29, 2020
Abstract
There
has
been
considerable
progress
over
the
last
decade
in
development
of
perovskite
solar
cells
(PSCs),
with
reported
performances
now
surpassing
25.2%
power
conversion
efficiency.
Both
long‐term
stability
and
component
costs
PSCs
remain
to
be
addressed
by
research
community,
using
hole
transporting
materials
(HTMs)
such
as
2,2′,7,7′‐tetrakis(
N
,
′‐di‐pmethoxyphenylamino)‐9,9′‐spirbiuorene(Spiro‐OMeTAD)
poly[bis(4‐phenyl)(2,4,6‐trimethylphenyl)amine]
(PTAA).
HTMs
are
essential
for
high‐performance
PSC
devices.
Although
effective,
these
require
a
relatively
high
degree
doping
additives
improve
charge
mobility
interlayer/substrate
compatibility,
introducing
doping‐induced
issues
HTMs,
further,
additional
experimental
complexity
associated
doped
materials.
This
article
reviews
dopant‐free
organic
PSCs,
outlining
reports
structures
promising
properties
toward
achieving
low‐cost,
scalable
devices
stability.
It
summarizes
recent
literature
on
non‐doped,
alternative,
more
stable
used
components
high‐efficiency
cells,
categorizing
different
architectures
addition
use
small
molecular
polymeric
HTMs.
Finally,
an
outlook
critical
assessment
commercial
application
insight
into
is
provided.