All-inorganic
lead
halide
perovskite
quantum
dots
(PQDs)
have
emerged
as
highly
promising
materials
for
photonic
and
optoelectronic
devices,
solar
cells,
photocatalysts.
However,
PQDs
encounter
instability
color
separation
issues
because
of
ion
diffusion.
Current
strategies
mainly
address
stability
in
green
CsPbBr3
PQDs,
with
limited
focus
on
the
red-mixed
their
inferior
compared
PQDs.
Our
study
provides
a
new
dual-protection
methodology
synthesizing
high-efficiency
red
mixed-halide
PQD
films.
Red
CsPb(Br0.4I0.6)3
are
embedded
silicone
resin
then
incorporated
poly(methyl
methacrylate)
(PMMA)
matrix
to
form
PQDs@silicone/PMMA
The
high
photoluminescence
yield
(PLQY)
great
recorded
pure-red
polymer
film.
ultrabright
film
was
also
successfully
fabricated
an
outstanding
PLQY
beyond
94%.
These
films
exhibited
enhanced
against
thermal
environmental
degradation,
attributed
dense
protective
layer
PMMA
matrices
by
formation
Si–halide
Pb–O
bonds,
thereby
reducing
surface
defects.
Theoretical
calculations
reveal
that
combining
improves
interactions,
eliminating
uncoordinated
Pb2+
enhancing
stability.
Applied
white
light-emitting
diodes
(WLEDs),
these
demonstrated
broad
gamut
143.4%,
indicating
potential
efficient
WLED
backlighting.
Advanced Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: May 9, 2025
Abstract
Metal
halide
perovskites
have
gained
worldwide
attention
as
excellent
optoelectronic
materials.
Over
the
past
decade,
perovskite‐based
color
conversion
technology
has
shown
significant
promise
for
commercialization,
particularly
in
display
applications.
Prototypes
of
displays
utilizing
this
made
remarkable
achievements.
As
slightly
more
than
a
decade
elapsed
since
discovery
metal
perovskite
light‐emitting
diodes,
comprehensive
review,
and
outlook
is
crucial
to
advance
explore
its
full
potential
next‐generation
displays.
To
end,
paper
systematically
outlined
strategies
enhancing
material
performance
patterning
fabrication
techniques
converters.
Building
on
current
technological
advancements,
review
also
summarizes
new
chances
emerging
morphologies.
Furthermore,
key
challenges
hindering
commercialization
converters
are
pointed
out
guide
future
research
development.
This
aims
offer
valuable
insights
into
advanced
The Journal of Physical Chemistry Letters,
Journal Year:
2024,
Volume and Issue:
15(28), P. 7236 - 7243
Published: July 8, 2024
Yb3+
doped
perovskite
nanocrystals
(PNCs)
serve
as
efficient
photoconverters,
exhibiting
quantum
cutting
emission
at
∼980
nm,
which
aligns
precisely
with
the
optimal
response
region
of
silicon
solar
cells
(SSCs).
However,
severe
nonradiative
recombination
caused
by
defects
in
crystal
lattice
and
film
boundaries,
along
limitations
small-scale
preparation,
restricts
their
commercial
application.
Here,
we
used
Ru3+
to
mitigate
CsPbCl3
PNCs
adjusted
luminescence,
achieving
a
175%
photoluminescence
yield
(PLQY).
The
results
show
that
ions
enter
lattice,
fill
lead
vacancies,
passivate
defects.
Furthermore,
cysteine
effectively
eliminates
surface
forming
Pb–S
bonds,
resulting
films
remarkable
117%
PLQY,
demonstrating
strong
photoconversion
capabilities.
Uniformly
knife-coated
on
20
×
cm2
photovoltaic
glass,
these
increased
SSC
efficiency
from
21.45%
23.15%.
This
study
showcases
cost-effective
photoconverter
scalable
coating
method
boost
large-area
SSCs.
Optics Express,
Journal Year:
2024,
Volume and Issue:
32(20), P. 35015 - 35015
Published: Sept. 5, 2024
To
clarify
the
positive
effect
of
down-conversion
process
for
ultraviolet
(UV)
and
deep
(DUV)
light
detection
visualization,
we
choose,
synthesize,
characterize
a
spectrum
direct-bandgap
CdSe-based
colloidal
quantum
dot
(QD)
solvents
color-conversion
layers
(CCLs)
across
blue,
green,
yellow,
orange,
red
hues.
Their
optical
absorption,
emission,
response
speeds
under
various
UV
DUV
wavelength
280
nm,
372
405
nm
are
evaluated.
The
blue
QD
CCL
demonstrated
highest
yield
up
to
0.68.
By
integrating
this
directly
onto
silicon-based
photodiode,
responded
power
280-nm
is
significantly
enhanced
by
27
times;
data
decreases
slightly
23
times
when
using
orange
QDs,
due
comparatively
lower
yield.
For
optimal
result
in
communication
system,
QDs
help
exhibit
520
mV
stimulated
with
372-nm
light,
compared
substantial
improvement
over
original
120
mV.
This
enhancement
makes
reduces
BER,
especially
at
rates
below
70
Mb/s,
stronger
avalanche
photodiode
(APD)
600
nm.
Furthermore,
demonstrate
potential
application
patterning
have
also
produced
through
inkjet
printing,
showcasing
their
printability,
high
stability
air,
pure
color
emission
illumination.
These
results
underscore
significant
full-color
anti-counterfeiting
solutions
integration
into
flexible,
printable
wearables
variety
visualization
applications.
ACS Nano,
Journal Year:
2024,
Volume and Issue:
18(27), P. 17715 - 17724
Published: June 25, 2024
Colloidal
nanoparticles
offer
unique
photoelectric
properties,
making
them
promising
for
functional
applications.
Multiparticle
systems
exhibit
synergistic
effects
on
the
properties
of
their
individual
components.
However,
precisely
controlled
assembly
multiparticles
to
form
patterned
building
blocks
solid-state
devices
remains
challenging.
Here,
we
demonstrate
a
versatile
multiparticle
electrophoretic
deposition
(EPD)
strategy
achieve
assembly,
high-efficiency,
and
high-resolution
patterns.
Through
elaborate
surface
design
charge
regulation
nanoparticles,
precise
control
over
particle
distribution
(gradient
or
homogeneous
structure)
in
films
using
EPD
technique.
The
system
integrates
silicon
oxide
titanium
synergistically
enhancing
emission
efficiency
quantum
dots
high
level
field.
Furthermore,
superiority
our
integrate
into
large-area
full-color
display
panels
with
resolution
1000
pixels
per
inch.
results
suggest
great
potential
developing
expanding
diverse
Soft Matter,
Journal Year:
2024,
Volume and Issue:
20(34), P. 6791 - 6799
Published: Jan. 1, 2024
Electrospraying
is
a
method
of
atomizing
fluids
using
high
voltage
potential
difference.
Since
the
atomization
electrostatic
does
not
directly
charge
nozzle
but
only
uses
difference,
various
equipment
structures
are
possible.
In
case
this
study,
12
different
nozzle,
ring
electrode,
and
substrate
were
configured,
data
on
characteristics
electrospray,
such
as
spray
modes
applied
voltage,
coating
area,
current,
velocity,
factors
used
in
industrial
processes,
verified.
Data
provided
for
generation
process
uniform
continuous
electrospray.
Nanoscale,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 1, 2024
As
a
new
generation
of
display
technology,
micro-light-emitting
diodes
(micro-LEDs)
have
been
widely
recognized
owing
to
their
excellent
performance
in
brightness,
contrast
ratio,
resolution,
Nano Letters,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 18, 2024
Linearly
polarized
micro
light-emitting
diodes
(LP-Micro-LEDs)
exhibit
exceptional
potential
across
diverse
fields.
The
existing
methods
to
introduce
polarization
initially
unpolarized
Micro-LEDs
and
further
enhance
the
degree
of
are,
however,
at
expense
low
luminous
efficiency.
We
fabricated
a
GaN-based
blue
Micro-LED
integrated
with
Al
nanograting
specially
designed
Ag/GaN
meta-grating,
which
overcomes
dilemma
between
efficiency
by
simultaneously
introducing
effects
mode
selection
energy
recycling.
LP-Micro-LED
achieves
an
average
extinction
ratio
(ER)
21.92
dB
within
±60°,
showing
2.04-fold
increase
in
1.32-fold
ER
compared
Ag
reflector
design.
This
approach
opens
way
toward
next
generation
high-efficiency
low-cost
optoelectronic
devices
encryption,
displays,
optical
communication,
medicine.
All-inorganic
lead
halide
perovskite
quantum
dots
(PQDs)
have
emerged
as
highly
promising
materials
for
photonic
and
optoelectronic
devices,
solar
cells,
photocatalysts.
However,
PQDs
encounter
instability
color
separation
issues
because
of
ion
diffusion.
Current
strategies
mainly
address
stability
in
green
CsPbBr3
PQDs,
with
limited
focus
on
the
red-mixed
their
inferior
compared
PQDs.
Our
study
provides
a
new
dual-protection
methodology
synthesizing
high-efficiency
red
mixed-halide
PQD
films.
Red
CsPb(Br0.4I0.6)3
are
embedded
silicone
resin
then
incorporated
poly(methyl
methacrylate)
(PMMA)
matrix
to
form
PQDs@silicone/PMMA
The
high
photoluminescence
yield
(PLQY)
great
recorded
pure-red
polymer
film.
ultrabright
film
was
also
successfully
fabricated
an
outstanding
PLQY
beyond
94%.
These
films
exhibited
enhanced
against
thermal
environmental
degradation,
attributed
dense
protective
layer
PMMA
matrices
by
formation
Si–halide
Pb–O
bonds,
thereby
reducing
surface
defects.
Theoretical
calculations
reveal
that
combining
improves
interactions,
eliminating
uncoordinated
Pb2+
enhancing
stability.
Applied
white
light-emitting
diodes
(WLEDs),
these
demonstrated
broad
gamut
143.4%,
indicating
potential
efficient
WLED
backlighting.
