Abstract
Obtaining
efficient
perovskite
solar
modules
(PSMs)
with
enhanced
UV
stability
is
essential
for
their
practical
applications,
yet
remains
a
significant
challenge.
In
this
work,
highly
organic–inorganic
copper
halide
downshifting
film
that
significantly
enhances
the
of
PSMs
demonstrated
by
converting
high‐energy
harmful
photons
into
beneficial
visible
light
contribute
to
photovoltaic
performance.
The
tetrapropylammonium
(TPA)
cation
selected
as
main
framework
synthesize
series
halides,
denoted
Br
x
I
y
.
A
near‐unity
photoluminescence
quantum
yield
(PLQY)
99.51%
can
be
achieved
precisely
controlling
Br/I
ratio
2:4,
2
4
,
which
one
highest
values
reported
date.
dual
self‐trapped
excitons
(STEs)
luminescence
mechanism
systematically
investigated
both
temperature‐dependent
and
pressure‐dependent
experiments.
This
dual‐STEs
enables
efficiently
absorb
re‐emit
photons,
thereby
mitigating
photodegradation
induced
light.
Finally,
effective
layer.
an
optimal
efficiency
22.24%,
maintaining
over
90%
initial
after
exposure
total
dose
66.07
kWh
m
−2
Advanced Materials,
Год журнала:
2023,
Номер
36(9)
Опубликована: Сен. 23, 2023
Optoelectronic
memristors
(OMs)
have
emerged
as
a
promising
optoelectronic
Neuromorphic
computing
paradigm,
opening
up
new
opportunities
for
neurosynaptic
devices
and
systems.
These
OMs
possess
range
of
desirable
features
including
minimal
crosstalk,
high
bandwidth,
low
power
consumption,
zero
latency,
the
ability
to
replicate
crucial
neurological
functions
such
vision
optical
memory.
By
incorporating
large-scale
parallel
synaptic
structures,
are
anticipated
greatly
enhance
high-performance
low-power
in-memory
computing,
effectively
overcoming
limitations
von
Neumann
bottleneck.
However,
progress
in
this
field
necessitates
comprehensive
understanding
suitable
structures
techniques
integrating
low-dimensional
materials
into
integrated
circuit
platforms.
This
review
aims
offer
overview
fundamental
performance,
mechanisms,
design
applications,
integration
roadmap
memristors.
establishing
connections
between
materials,
multilayer
memristor
units,
monolithic
circuits,
seeks
provide
insights
emerging
technologies
future
prospects
that
expected
drive
innovation
widespread
adoption
near
future.
Advanced Materials,
Год журнала:
2024,
Номер
36(21)
Опубликована: Фев. 21, 2024
Near-Infrared
(NIR)
light
emitting
metal
halides
are
emerging
as
a
new
generation
of
optical
materials
owing
to
their
appealing
features,
which
include
low-cost
synthesis,
solution
processability,
and
adjustable
properties.
NIR-emitting
perovskite-based
light-emitting
diodes
(LEDs)
have
reached
an
external
quantum
efficiency
(EQE)
over
20%
device
stability
10,000
h.
Such
results
sparked
interest
in
exploring
NIR
halide
emitters.
In
this
review,
several
different
types
halides,
including
lead/tin
bromide/iodide
perovskites,
lanthanide
ions
doped/based
double
low
dimensional
hybrid
Bi
Angewandte Chemie International Edition,
Год журнала:
2024,
Номер
63(24)
Опубликована: Апрель 15, 2024
Exploration
of
efficient
red
emitting
antimony
hybrid
halide
with
large
Stokes
shift
and
zero
self-absorption
is
highly
desirable
due
to
its
enormous
potential
for
applications
in
solid
light
emitting,
active
optical
waveguides.
However,
it
still
challenging
rarely
reported.
Herein,
a
series
(TMS)
Laser & Photonics Review,
Год журнала:
2024,
Номер
18(10)
Опубликована: Май 2, 2024
Abstract
Eu
2+
‐doped
phosphors
have
attracted
the
great
attention
of
researchers
in
past
decade.
However,
dopant
inorganic
hosts
often
suffers
from
self‐oxidation
effect,
therefore
causing
attenuated
emission
intensity
and
quantum
efficiency.
In
this
regard,
developing
doped
with
prohibited
effect
increased
thermal
stability
is
urgently
required.
Herein,
an
innovative
cyan‐light
emitting
Li
2
CaSiO
4
:Eu
/Eu
3+
,
Lu
(LCSO)
phosphor
designed.
Both
experimental
results
theoretical
calculations
demonstrate
that
adding
restricts
into
thus
improving
.
Meanwhile,
introduction
brings
out
excellent
stability.
Finally,
efficient
WLED
a
color
temperature
(CCT)
4573
K
high
rendering
index
(R
)
84.2
obtained
using
as‐prepared
due
to
perfect
compensation
cyan
light.
As
improves
much
greater
difference
PL
decay
rate
between
LCSO
reached,
thereby
their
sensitivity
sensing.
The
strategy
for
prohibiting
stable
may
stimulate
some
new
ideas
designing
high‐performance
more
diverse
applications.
Abstract
Near‐infrared
(NIR)
luminescent
metal
halide
(LMH)
materials
have
attracted
great
attention
in
various
optoelectronic
applications
due
to
their
low‐temperature
solution‐processable
synthesis,
abundant
crystallographic/electronic
structures,
and
unique
properties.
However,
some
challenges
still
remain
luminescence
design,
performance
improvement,
application
assignments.
This
review
systematically
summarizes
the
development
of
NIR
LMHs
through
classifying
origins
into
four
major
categories:
band‐edge
emission,
self‐trapped
exciton
(STE)
ion
defect‐related
emission.
The
mechanisms
different
types
are
discussed
detail
by
analyzing
typical
examples.
Reasonable
strategies
for
designing
optimizing
luminescence/optoelectronic
properties
summarized,
including
bandgap
engineering,
self‐trapping
state
chemical
composition
modification,
energy
transfer,
other
auxiliary
such
as
improvement
synthesis
scheme
post‐processing.
Furthermore,
prospects
based
on
devices
revealed,
phosphor‐converted
light‐emitting
diodes
(LEDs),
electroluminescent
LEDs,
photodetectors,
solar
cells,
x‐ray
scintillators,
well
demonstrations
related
practical
applications.
Finally,
existing
future
perspectives
LMH
critically
proposed.
aims
provide
general
understanding
guidance
design
high‐performance
materials.
image
Advanced Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 29, 2025
Abstract
Light‐emitting
diodes
(LEDs)
based
on
halide
perovskite
nanocrystals
have
attracted
extensive
attention
due
to
their
considerable
luminescence
efficiency,
wide
color
gamut,
high
purity,
and
facile
material
synthesis.
Since
the
first
demonstration
of
LEDs
MAPbBr
3
was
reported
in
2014,
community
has
witnessed
a
rapid
development
performances.
In
this
review,
historical
perspective
is
provided
then
comprehensive
survey
current
strategies
for
high‐efficiency
lead‐based
LEDs,
including
synthesis
optimization,
ion
doping/alloying,
shell
coating
presented.
Then
basic
characteristics
emission
mechanisms
lead‐free
perovskite‐related
emitters
environmentally
friendly
from
standpoint
different
colors
are
reviewed.
Finally,
progress
LED
applications
covered
an
outlook
opportunities
challenges
future
developments
field
provided.
Advanced Functional Materials,
Год журнала:
2023,
Номер
34(10)
Опубликована: Ноя. 21, 2023
Abstract
Low‐dimensional
organic–inorganic
metal
halides
(OIMHs)
have
emerged
as
promising
light
emitters
due
to
their
broadband
emission
originating
from
self‐trapped
excitons
(STE),
especially
for
Cu‐based
OIMHs.
Herein,
Cu(I)‐based
OIMH
with
a
structure
of
(TPP)
2
Cu
4
I
6
·2DMSO
(TPP
stays
tetraphenylphosphonium,
and
DMSO
–
dimethyl
sulfoxide)
has
been
synthesized,
both
in
form
single
crystals
microcrystalline
powder.
This
compound
exhibits
green
peak
at
515
nm
full
width
half‐maximum
78
nm,
near‐unity
photoluminescence
quantum
yield
99.5%.
Experimental
data
supported
by
theoretical
calculations
indicate
that
the
STE
is
responsible
long
lifetime
2.53
µs.
Down‐conversion
light‐emitting
device
high
luminous
efficiency
50
lm
W
−1
based
on
this
fabricated,
white
also
achieved
color
rendering
index
96.7.
Moreover,
emissive
utilized
scintillators
X‐ray
detection
imaging,
luminescent
ink
encryption
applications.
The Journal of Physical Chemistry Letters,
Год журнала:
2024,
Номер
15(27), С. 7036 - 7044
Опубликована: Июль 1, 2024
Fast-decaying
scintillators
show
subnanoseconds
or
nanoseconds
lifetime
and
high
time
resolution,
making
them
important
in
nuclear
physics,
medical
diagnostics,
scientific
research,
other
fields.
Metal
halide
perovskites
(MHPs)
great
potential
for
scintillator
applications
owing
to
their
easy
synthesis
procedure
attractive
optical
properties.
However,
MHPs
still
need
further
improvement
decay
lifetime.
To
optimize
the
lifetime,
progress
has
been
achieved
recently.
In
this
Perspective,
we
first
summarize
structural
characteristics
of
various
dimensions,
which
brings
different
exciton
behaviors.
Then,
recent
advances
designing
fast-decaying
according
behaviors
have
concluded,
focusing
on
photophysical
mechanisms
achieve
lifetimes.
These
advancements
lifetimes
could
facilitate
advanced
applications,
such
as
time-of-flight
positron
emission
tomography
(TOF-PET),
photon-counting
computed
(PCCT),
etc.
Finally,
challenges
future
opportunities
are
discussed
provide
a
roadmap
novel
scintillators.
Journal of Materials Chemistry C,
Год журнала:
2024,
Номер
12(21), С. 7497 - 7512
Опубликована: Янв. 1, 2024
This
review
introduced
the
research
progress
and
present
situation
of
solar
blind
detectors
based
on
metal
halide
perovskite
(MHP)
in
recent
years
from
different
dimensions:
three-dimensional,
two-dimensional,
one-dimensional
zero
dimensional.
