Chemical Reviews,
Journal Year:
2021,
Volume and Issue:
121(20), P. 12112 - 12180
Published: July 12, 2021
Oriented
semiconductor
nanostructures
and
thin
films
exhibit
many
advantageous
properties,
such
as
directional
exciton
transport,
efficient
charge
transfer
separation,
optical
anisotropy,
hence
these
are
highly
promising
for
use
in
optoelectronics
photonics.
The
controlled
growth
of
structures
can
facilitate
device
integration
to
improve
optoelectronic
performance
benefit
in-depth
fundamental
studies
the
physical
properties
materials.
Halide
perovskites
have
emerged
a
new
family
cost-effective
materials
next-generation
high-power
conversion
efficiency
photovoltaics
versatile
high-performance
optoelectronics,
light-emitting
diodes,
lasers,
photodetectors,
high-energy
radiation
imaging
detectors.
In
this
Review,
we
summarize
advances
fabrication
halide
perovskite
with
dimensionality
crystallographic
orientation,
along
their
applications
characteristics
optoelectronics.
We
examine
methods,
mechanisms,
strategies
several
technologically
relevant
structures,
including
nanowires,
nanoplates,
nanostructure
arrays,
single-crystal
films,
oriented
films.
highlight
discuss
photophysical
remarkable
Finally,
survey
remaining
challenges
provide
perspective
regarding
opportunities
further
progress
field.
eLight,
Journal Year:
2023,
Volume and Issue:
3(1)
Published: Jan. 4, 2023
Abstract
Metal
halide
perovskites
(MHPs),
emerging
as
innovative
and
promising
semiconductor
materials
with
prominent
optoelectronic
properties,
has
been
pioneering
a
new
era
of
light
management
(ranging
from
emission,
absorption,
modulation,
to
transmission)
for
next-generation
technology.
Notably,
the
exploration
fundamental
characteristics
MHPs
their
devices
is
main
research
theme
during
past
decade,
while
in
next
it
will
be
primarily
critical
promote
implantation
optoelectronics.
In
this
review,
we
first
retrospect
historical
milestones
devices.
Thereafter,
introduce
origin
unique
features
MHPs,
based
on
which
highlight
tunability
these
via
regulating
phase,
dimensionality,
composition,
geometry
MHPs.
Then,
show
that
owing
convenient
property
control
various
target
performance
can
designed.
At
last,
emphasize
revolutionary
applications
MHPs-based
existing
systems.
This
review
demonstrates
key
role
played
development
modern
optoelectronics,
expected
inspire
novel
directions
widespread
Nano-Micro Letters,
Journal Year:
2023,
Volume and Issue:
15(1)
Published: July 10, 2023
Nowadays,
the
soar
of
photovoltaic
performance
perovskite
solar
cells
has
set
off
a
fever
in
study
metal
halide
materials.
The
excellent
optoelectronic
properties
and
defect
tolerance
feature
allow
to
be
employed
wide
variety
applications.
This
article
provides
holistic
review
over
current
progress
future
prospects
materials
representative
promising
applications,
including
traditional
devices
(solar
cells,
light-emitting
diodes,
photodetectors,
lasers),
cutting-edge
technologies
terms
neuromorphic
(artificial
synapses
memristors)
pressure-induced
emission.
highlights
fundamentals,
remaining
challenges
for
each
application,
aiming
provide
comprehensive
overview
development
status
navigation
research
devices.
Advanced Materials,
Journal Year:
2021,
Volume and Issue:
34(10)
Published: Nov. 14, 2021
Abstract
Colloidal
metal‐halide
perovskite
nanocrystals
(MHP
NCs)
are
gaining
significant
attention
for
a
wide
range
of
optoelectronics
applications
owing
to
their
exciting
properties,
such
as
defect
tolerance,
near‐unity
photoluminescence
quantum
yield,
and
tunable
emission
across
the
entire
visible
wavelength
range.
Although
optical
properties
MHP
NCs
easily
through
halide
composition,
they
suffer
from
light‐induced
phase
segregation
that
limits
use
in
devices.
However,
MHPs
can
be
synthesized
form
colloidal
nanoplatelets
(NPls)
with
monolayer
(ML)‐level
thickness
control,
exhibiting
strong
confinement
effects,
thus
enabling
by
controlling
bromide
or
iodide‐based
lead‐halide
NPls.
In
addition,
NPls
exhibit
narrow
peaks,
have
high
exciton
binding
energies,
higher
fraction
radiative
recombination
compared
bulk
counterparts,
making
them
ideal
candidates
light‐emitting
diodes
(LEDs).
This
review
discusses
state‐of‐the‐art
NPls:
synthetic
routes,
thickness‐controlled
synthesis
both
organic–inorganic
hybrid
all‐inorganic
NPls,
linear
nonlinear
(including
charge‐carrier
dynamics),
performance
LEDs.
Furthermore,
challenges
associated
synthesis,
environmental
thermal
stability,
application
efficient
LEDs
discussed.
Advanced Materials,
Journal Year:
2021,
Volume and Issue:
34(19)
Published: Nov. 30, 2021
In
recent
years,
perovskite
light-emitting
diodes
(PeLEDs)
have
emerged
as
a
promising
new
lighting
technology
with
high
external
quantum
efficiency,
color
purity,
and
wavelength
tunability,
well
as,
low-temperature
processability.
However,
the
operational
stability
of
PeLEDs
is
still
insufficient
for
their
commercialization.
The
generation
migration
ionic
species
in
metal
halide
perovskites
has
been
widely
acknowledged
primary
factor
causing
performance
degradation
PeLEDs.
Herein,
this
topic
systematically
discussed
by
considering
fundamental
engineering
aspects
ion-related
issues
PeLEDs,
including
material
processing
origins
ion
generation,
mechanisms
driving
migration,
characterization
approaches
probing
distributions,
effects
on
device
stability,
strategies
management
Finally,
perspectives
remaining
challenges
future
opportunities
are
highlighted.
Advanced Functional Materials,
Journal Year:
2023,
Volume and Issue:
34(6)
Published: Oct. 27, 2023
Abstract
Halide
perovskites,
in
the
form
of
thin
films
and
colloidal
nanocrystals,
have
recently
taken
semiconductor
optoelectronics
research
by
storm,
emerged
as
promising
candidates
for
high‐performance
solar
cells,
light‐emitting
diodes
(LEDs),
lasers,
photodetectors,
radiation
detectors.
The
impressive
optical
optoelectronic
properties,
along
with
rapid
increase
efficiencies
cells
LEDs,
greatly
attracted
researchers
across
many
disciplines.
However,
most
advances
made
so
far
terms
preparation
(colloidal
nanocrystals
films),
devices
highest
are
based
on
Pb‐based
halide
which
raised
concerns
over
their
commercialization
due
to
toxicity
Pb.
This
has
triggered
search
lower‐toxicity
Pb‐free
perovskites
led
significant
progress
last
few
years.
In
this
roadmap
review,
different
expertise
joined
together
summarize
latest
progress,
outstanding
challenges,
future
directions
perovskite
regarding
synthesis,
spectroscopy,
devices,
guide
currently
working
area
well
those
that
will
join
field
future.
Chemical Reviews,
Journal Year:
2023,
Volume and Issue:
123(15), P. 9565 - 9652
Published: July 10, 2023
Three-dimensional
(3D)
organic-inorganic
lead
halide
perovskites
have
emerged
in
the
past
few
years
as
a
promising
material
for
low-cost,
high-efficiency
optoelectronic
devices.
Spurred
by
this
recent
interest,
several
subclasses
of
such
two-dimensional
(2D)
begun
to
play
significant
role
advancing
fundamental
understanding
structural,
chemical,
and
physical
properties
perovskites,
which
are
technologically
relevant.
While
chemistry
these
2D
materials
is
similar
that
3D
their
layered
structure
with
hybrid
interface
induces
new
emergent
can
significantly
or
sometimes
subtly
be
important.
Synergistic
realized
systems
combine
different
exhibiting
dimensionalities
exploiting
intrinsic
compatibility.
In
many
cases,
weaknesses
each
alleviated
heteroarchitectures.
For
example,
3D-2D
demonstrate
novel
behavior
neither
would
capable
separately.
This
review
describes
how
structural
differences
between
give
rise
disparate
properties,
discusses
strategies
realizing
mixed-dimensional
various
architectures
through
solution-processing
techniques,
presents
comprehensive
outlook
use
solar
cells.
Finally,
we
investigate
applications
beyond
photovoltaics
offer
our
perspective
on
perovskite
semiconductor
unrivaled
tunability,
efficiency,
relevant
durability.
Advanced Materials,
Journal Year:
2022,
Volume and Issue:
35(3)
Published: Nov. 18, 2022
While
quasi-two-dimensional
(quasi-2D)
perovskites
have
emerged
as
promising
semiconductors
for
light-emitting
diodes
(LEDs),
the
broad-width
distribution
of
quantum
wells
hinders
their
efficient
energy
transfer
and
electroluminescence
performance
in
blue
emission.
In
particular,
underlying
mechanism
is
closely
related
to
crystallization
kinetics
has
yet
be
understood.
Here
first
time,
influence
bifunctional
zwitterions
with
different
coordination
affinity
on
quasi-2D
systematically
investigated.
The
can
coordinate
Pb2+
also
act
co-spacer
organic
species
perovskites,
which
collectively
inhibit
aggregation
colloidal
precursors
shorten
distance
wells.
Consequently,
restricted
nucleation
high-n
phases
promoted
growth
low-n
are
achieved
moderately
coordinated
zwitterions,
leading
final
film
a
more
concentrated
n
improved
efficiency.
It
thus
enables
high-efficiency
LEDs
recorded
external
efficiency
15.6%
at
490
nm,
operation
stability
been
prolonged
55.3
min.
These
results
provide
useful
directions
tuning
expected
lead
high-performance
perovskite
LEDs.
Emission
thermal
quenching
is
commonly
observed
in
quasi-2D
perovskite
emitters,
which
causes
the
severe
drop
luminescence
efficiency
for
light-emitting
diodes
(PeLEDs)
during
practical
operations.
However,
this
issue
often
neglected
and
rarely
studied,
root
cause
of
has
not
been
completely
revealed
now.
Here,
we
develop
a
passivation
strategy
via
2,7-dibromo-9,9-bis
(3'-diethoxylphosphorylpropyl)-fluorene
to
investigate
suppress
quenching.
The
agent
can
effectively
passivate
coordination-unsaturated
Pb2+
defects
both
surface
bulk
film
without
affecting
crystallization,
helps
more
truly
demonstrate
important
role
And
our
results
reveal
that
will
be
strengthened
by
defect-promoted
exciton-phonon
coupling.
Ultimately,
PeLEDs
with
defect
achieve
an
improved
external
quantum
(EQE)
over
22%
doubled
operation
lifetime
at
room
temperature,
maintain
about
85%
initial
EQE
85
°C,
much
higher
than
17%
control
device.
These
findings
provide
basis
fabricating
lighting
displays.
Advanced Optical Materials,
Journal Year:
2022,
Volume and Issue:
10(14)
Published: June 22, 2022
Abstract
Over
the
past
few
years,
lead‐halide
perovskites
(LHPs),
both
in
form
of
bulk
thin
films
and
colloidal
nanocrystals
(NCs),
have
revolutionized
field
optoelectronics,
emerging
at
forefront
next‐generation
optoelectronics.
The
power
conversion
efficiency
(PCE)
halide
perovskite
solar
cells
has
increased
from
3.8%
to
over
25.7%
a
short
period
time
is
very
close
theoretical
limit
(33.7%).
At
same
time,
external
quantum
(EQE)
LEDs
surpassed
23%
20%
for
green
red
emitters,
respectively.
Despite
great
progress
device
efficiencies,
photoactive
phase
instability
one
major
concerns
long‐term
stability
devices
limiting
their
transition
commercialization.
In
this
regard,
researchers
found
that
LHPs
reproducibility
performance
can
be
improved
by
A‐site
cation
alloying
with
two
or
more
species,
these
are
named
mixed
(double,
triple,
quadruple)
perovskites.
This
review
provides
state‐of‐the‐art
overview
different
types
NCs
reported
literature,
along
discussion
synthesis,
properties,
LEDs.