Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(18)
Published: Jan. 30, 2024
Abstract
Lanthanide‐based
lead‐free
perovskite
materials
hold
great
promise
for
the
development
of
high‐resolution
full‐color
displays
in
future.
Here,
various
Cs
3
LnCl
6
nanocrystals
(NCs)
emitting
light
across
visible
to
near‐infrared
spectrum
with
remarkably
high
photoluminescence
quantum
yield
(PLQY)
are
systemically
prepared.
Especially,
by
introducing
multifunctional
coumarin
small
molecules
into
EuCl
NCs
as
an
intermediate
state,
can
achieve
impressive
PLQY
92.4%
pure
red
emission
and
exceptional
energy
transfer
efficiency
nearly
93.2%.
Furthermore,
lanthanide‐based
electroluminescent
devices
red,
green,
blue
successfully
fabricated.
Among
them,
‐NC‐based
light‐emitting
diode
(LED)
demonstrates
a
FWHM
18
nm
at
617
nm,
external
up
5.17%,
maximum
brightness
2373
cd
m
−2
,
which
is
most
excellent
reported
narrowband
(within
20
nm)
devices.
Notably,
these
exhibit
operating
half‐life
440
h
level
100
surpassing
performance
LEDs
(PLEDs).
This
work
opens
exciting
possibilities
future
commercialization
PLEDs
display
industry,
paving
way
more
vibrant,
energy‐efficient,
long‐lasting
technologies.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(15)
Published: Jan. 17, 2024
Hybrid
metal
halides
(HMHs)
with
efficient
circularly
polarized
luminescence
(CPL)
have
application
prospects
in
many
fields,
due
to
their
abundant
host-guest
structures
and
high
photoluminescence
quantum
yield
(PLQY).
However,
CPLs
HMHs
are
predominantly
excited
by
light
or
electricity,
limiting
use
multivariate
environments.
It
is
necessary
explore
a
novel
excitation
method
extend
the
of
chiral
as
smart
stimuli-responsive
optical
materials.
In
this
work,
an
enantiomeric
pair
0D
hybrid
manganese
bromides,
[H
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(18)
Published: Feb. 2, 2024
Abstract
Layered
materials
are
characterized
by
strong
in‐plane
covalent
chemical
bonds
within
each
atomic
layer
and
weak
out‐of‐plane
van
der
Waals
(vdW)
interactions
between
adjacent
layers.
The
non‐bonding
nature
neighboring
layers
naturally
results
in
a
vdW
gap,
which
enables
the
insertion
of
guest
species
into
interlayer
gap.
Rational
design
regulation
nanochannels
crucial
for
converting
these
layered
their
2D
derivatives
ion
separation
membranes
or
battery
electrodes.
Herein,
based
on
latest
progress
derivative
nanosheets,
various
engineering
methods
briefly
introduced,
along
with
effects
intercalated
crystal
structure
coupling
host
materials.
Their
applications
energy
storage
fields
then
summarized,
focus
to
improve
selective
transport
performance.
Finally,
future
research
opportunities
challenges
this
emerging
field
comprehensively
discussed.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: July 2, 2024
Abstract
Exploring
an
efficient
nonnoble
metal
catalyst
for
hydrogen
evolution
reaction
(HER)
is
critical
industrial
alkaline
water
electrolysis.
However,
it
remains
a
great
challenge
due
to
the
additional
energy
required
H─OH
bond
cleavage
and
lack
of
enough
H
2
O
adsorption
sites
most
catalysts.
Herein,
integration
oxophilic
Eu
3
with
NiCo
alloy
evoked
multisite
synergism
facilitate
dissociation
HER
proposed.
The
optimized
‐NiCo
exhibits
excellent
activity
low
overpotential
only
60
mV
at
10
mA
cm
−2
good
electrochemical
stability,
which
superior
that
‐free
comparable
benchmark
Pt/C.
key
roles
on
enhanced
performance
are
identified
by
in
situ
Raman
spectroscopy
theoretical
calculations.
It
discovered
strong
oxophilicity
facilitates
breakage
bonding
while
evoking
electron
redistribution
/NiCo
interface
accelerating
Volmer
step
HER.
Furthermore,
obtained
as
both
anode
cathode
displays
overall
water‐splitting
stability
1.0
M
KOH
solution.
believed
this
study
provides
important
inspiration
design
high‐performance
electrocatalysts
toward
based
rare‐earth
materials.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(18)
Published: Jan. 30, 2024
Abstract
Lanthanide‐based
lead‐free
perovskite
materials
hold
great
promise
for
the
development
of
high‐resolution
full‐color
displays
in
future.
Here,
various
Cs
3
LnCl
6
nanocrystals
(NCs)
emitting
light
across
visible
to
near‐infrared
spectrum
with
remarkably
high
photoluminescence
quantum
yield
(PLQY)
are
systemically
prepared.
Especially,
by
introducing
multifunctional
coumarin
small
molecules
into
EuCl
NCs
as
an
intermediate
state,
can
achieve
impressive
PLQY
92.4%
pure
red
emission
and
exceptional
energy
transfer
efficiency
nearly
93.2%.
Furthermore,
lanthanide‐based
electroluminescent
devices
red,
green,
blue
successfully
fabricated.
Among
them,
‐NC‐based
light‐emitting
diode
(LED)
demonstrates
a
FWHM
18
nm
at
617
nm,
external
up
5.17%,
maximum
brightness
2373
cd
m
−2
,
which
is
most
excellent
reported
narrowband
(within
20
nm)
devices.
Notably,
these
exhibit
operating
half‐life
440
h
level
100
surpassing
performance
LEDs
(PLEDs).
This
work
opens
exciting
possibilities
future
commercialization
PLEDs
display
industry,
paving
way
more
vibrant,
energy‐efficient,
long‐lasting
technologies.
