APL Materials,
Journal Year:
2023,
Volume and Issue:
11(4)
Published: April 1, 2023
A
mixed
passivation
strategy
is
deployed
to
produce
monodisperse
and
pure
CsPbBr3
nanocrystals
under
ambient
condition
via
post
treatment
using
ZnBr2
in
organic
solvents.
This
room
temperature
synthesis
route
provides
precise
size
shape
control,
colloidal
nanocubes
or
nanospheres
can
be
obtained
depending
on
the
choice
of
Any
secondary
phases’
nucleation
was
inhibited.
The
reduce
Br−
vacancies
at
surface
termination
layers,
thus
enhancing
their
properties.
approach
potentially
offer
a
cheap
viable
for
perovskite
optical
electrical
devices.
ACS Applied Materials & Interfaces,
Journal Year:
2023,
Volume and Issue:
15(5), P. 7044 - 7052
Published: Jan. 27, 2023
Perovskites
show
efficient
electroluminescence
and
are
expected
to
have
wide
applications
in
light-emitting
diodes
(LEDs).
However,
owing
the
unbalanced
electron–hole
transport
properties
of
some
highly
luminescent
perovskites,
a
fundamental
challenge
is
that
exciton
recombination
zone
perovskite
LEDs
(PeLEDs)
typically
overlaps
with
an
accumulation
major
carrier.
It
known
reduce
performances
PeLEDs,
leading
reduction
efficiency
operation
stability
due
Auger
recombination.
To
address
this
issue
hole-dominated
blue
PeLED,
we
propose
insert
cesium
acetate
(CsAc)
layer
between
hole
(HTL)
hole-dominant
layer.
Electronic
indicate
device
CsAc
shifts
away
from
perovskite/ETL
interface,
i.e.,
zone,
HTL/CsAc
interface.
Separation
region
zones
substantially
suppresses
quenching.
Moreover,
can
also
improve
photophysical
film
by
providing
extra
Cs
source
interact
defect
site
unreacted
PbBr2
enhance
crystallinity
enlarged
crystal
grain
size.
As
result,
external
quantum
(EQE)
sky-blue
PeLEDs
shows
considerable
improvement
5.3
9.2%
upon
inserting
Molecules,
Journal Year:
2025,
Volume and Issue:
30(3), P. 643 - 643
Published: Jan. 31, 2025
Metal
halide
perovskite
quantum
dots
(MHP
QDs),
as
a
kind
of
fluorescent
material,
have
attracted
much
attention
due
to
their
excellent
photoluminescence
(PL)
yield
(QY),
narrow
full
width
at
half
maximum
(FWHM),
broad
absorption,
and
tunable
emission
wavelength.
However,
the
instability
biological
incompatibility
MHP
QDs
greatly
hinder
application
in
field
biomedicine.
Hydrogels
are
three-dimensional
polymer
networks
that
widely
used
biomedicine
because
high
transparency
biocompatibility.
This
review
not
only
introduces
latest
research
progress
improving
mechanical
optical
properties
hydrogels/MHP
but
also
combines
it
with
existing
methods
for
enhancing
stability
hydrogels,
aiming
provide
new
ideas
researchers
material
selection
constructing
QD-embedded
hydrogels.
Finally,
prospects
future
challenges
introduced.
Nanomaterials,
Journal Year:
2024,
Volume and Issue:
14(14), P. 1201 - 1201
Published: July 15, 2024
The
ligand
engineering
of
inorganic
lead
halide
perovskite
quantum
dots
(PQDs)
is
an
indispensable
strategy
to
boost
their
photoluminescence
stability,
which
pivotal
for
optoelectronics
applications.
CsPbX
Inorganic Chemistry,
Journal Year:
2023,
Volume and Issue:
62(22), P. 8626 - 8634
Published: May 23, 2023
In
situ
fabrication
of
lead
halide
perovskite
quantum
dots
(PQDs)
is
important
for
narrow-band
emitters
LED
displays
due
to
the
simple
work
procedure
and
convenient
usability;
however,
growth
PQDs
not
readily
controllable
in
preparation,
resulting
low
efficiency
environmental
instability
PQDs.
Here,
we
demonstrate
an
effective
strategy
controllably
prepare
CsPbBr3
polystyrene
(PS)
under
regulation
methylammonium
bromide
(MABr)
via
electrostatic
spinning
thermal
annealing
techniques.
MA+
slowed
down
acted
as
a
surface
defect
passivation
reagent,
which
was
proved
by
Gibbs
free
energy
simulation,
static
fluorescence
spectra,
transmission
electron
microscopy,
time-resolved
photoluminescence
(PL)
decay
spectra.
Among
series
prepared
Cs1-xMAxPbBr3@PS
(0
≤
x
0.2)
nanofibers,
Cs0.88MA0.12PbBr3@PS
shows
regular
particle
morphology
highest
yield
up
39.54%.
The
PL
intensity
90%
initial
after
immersing
water
45
days
49%
value
persistent
ultraviolet
(UV)
irradiation
27
days.
A
high
color
gamut
containing
127%
National
Television
Systems
Committee
standard
with
long-time
working
stability
also
obtained
on
light-emitting
diode
package
measurements.
These
results
that
can
effectively
control
morphology,
humidity,
optical
PS
matrix.
ACS Applied Materials & Interfaces,
Journal Year:
2024,
Volume and Issue:
16(26), P. 34167 - 34180
Published: June 19, 2024
Recently
emerged
lead
halide
perovskite
CsPbX3
(X
=
Cl,
Br,
and
I)
nanocrystals
(PNCs)
have
attracted
tremendous
attention
due
to
their
excellent
optical
properties.
However,
the
poor
water
stability,
unsatisfactory
luminescence
efficiency,
disappointing
leakage,
toxicity
restricted
practical
applications
in
photoelectronics
biomedical
fields.
Herein,
a
controllable
encapsulated
strategy
is
investigated
realize
PNCs/PVP
@PMMA
composites
with
superior
properties
biocompatibility.
Additionally,
synthesized
CsPbBr3
CsPbBr0.6I2.4
PNCs/PVP@PMMA
structures
exhibit
green
red
emissions
maximal
photoluminescence
quantum
yield
(PLQY)
of
about
70.24%
98.26%,
respectively.
These
show
high
emission
stability
after
storage
for
18
months,
low
cytotoxicity
at
PNC
concentration
500
μg
mL–1.
Moreover,
white
light-emitting
diode
(WLED)
devices
based
on
mixtures
are
investigated,
which
warm-white
light
room
temperature.
A
flexible
manipulation
method
used
fabricate
emitters
these
composites,
providing
fantastic
platform
fabricating
solid-state
sources
full-color
displays.
RSC Advances,
Journal Year:
2024,
Volume and Issue:
14(28), P. 19744 - 19751
Published: Jan. 1, 2024
The
detection
of
hydrogen
peroxide
(H
2
O
)
represents
an
extensive
requirement
across
various
domains,
including
food,
environmental,
and
medical
fields.
