Optics Express,
Год журнала:
2023,
Номер
31(20), С. 31818 - 31818
Опубликована: Авг. 22, 2023
Micro-LEDs
have
promising
development
potential
in
display
applications
because
of
their
outstanding
performance.
Achieving
a
full-color
based
on
micro-LEDs
is
one
the
most
important
issues
commercial
applications.
In
this
paper,
an
effective
method
quantum
dots
and
blue
was
developed.
Using
etching
method,
thick
black
matrix
fabricated
to
reduce
crosstalk
form
bank
for
dots.
Quantum
were
deposited
using
inkjet
printing
technology.
With
micro-LEDs,
inkjet-printed
dot
films
can
realize
color
conversion.
The
integrated
red/green
achieve
displays
without
filters,
light
leakage
conversion
film
be
reduced
by
themselves.
results
suggest
that
are
way
micro-LED
displays.
Advanced Materials,
Год журнала:
2023,
Номер
35(41)
Опубликована: Март 9, 2023
Abstract
Pixelating
patterns
of
red,
green,
and
blue
quantum
dots
(QDs)
is
a
critical
challenge
for
realizing
high‐end
displays
with
bright
vivid
images
virtual,
augmented,
mixed
reality.
Since
QDs
must
be
processed
from
solution,
their
patterning
process
completely
different
the
conventional
techniques
used
in
organic
light‐emitting
diode
liquid
crystal
display
industries.
Although
innovative
QD
technologies
are
being
developed,
photopatterning
based
on
light‐induced
chemical
conversion
films
considered
one
most
promising
methods
forming
micrometer‐scale
that
satisfy
precision
fidelity
required
commercialization.
Moreover,
practical
impact
will
significant
as
it
directly
exploits
mature
photolithography
facilities
widely
available
semiconductor
industry.
This
article
reviews
recent
progress
effort
to
form
via
photolithography.
The
review
begins
general
description
process.
Subsequently,
types
photolithographical
applicable
introduced,
followed
by
achievements
using
these
high‐resolution
patterns.
paper
also
discusses
prospects
future
research
directions.
Photonics Research,
Год журнала:
2023,
Номер
11(6), С. 925 - 925
Опубликована: Март 29, 2023
Micro-light
emitting
diodes
(μLEDs)
with
remarkable
advantages
are
becoming
mainstream
in
next-generation
display
technologies
such
as
augmented
reality/virtual
reality
displays.
However,
further
development
of
μLEDs
still
faces
significant
challenges,
including
mass
transfer
yield.
Here,
we
report
color
conversion
layer
(CCL)-based,
full-color,
highly
efficient
μLED
arrays
a
solution
to
address
this
challenging
issue.
Further
amalgamating
CCL
purity
enhancement
film
enables
us
realize
7
μm
×7
subpixel
fluorescent
gamut
95.34%
DCI-P3,
resulting
an
overall
1588
PPI
(pixel
per
inch).
Our
results
provide
promising
technique
for
fabricating
higher
PPI-based
technology.
Next Nanotechnology,
Год журнала:
2024,
Номер
5, С. 100051 - 100051
Опубликована: Янв. 1, 2024
Micro
light-emitting
diodes
(μLEDs)
with
unparalleled
photoelectric
characteristics
are
essential
components
for
developing
metaverse-related
technologies.
Immersive
displays
require
reducing
the
LED
size
to
micro-
or
sub-microscale
while
retaining
optimal
optoelectronic
capabilities.
μLEDs,
fabricated
through
quantum
dots
colour
conversion
layer
(QDs-CCL)
process,
offer
a
cost-effective
solution
achieving
full-colour
and
ultrahigh
quality.
However,
sidewall
defects
significantly
affect
optical
electrical
properties
of
μLEDs
reduced
chip
size.
Furthermore,
QDs
suffer
from
low
excitation
radiation
inferior
operational
stability
induced
by
their
intrinsic
properties.
Atomic
deposition
(ALD)
is
promising
chemical
surface
treatment
technique
self-limiting
that
can
enhance
μLED
devices.
In
this
review,
we
explore
recent
studies
on
ALD
techniques
device
fabrication.
We
discuss
in
detail
significant
contribution
repairing
RGB
tricolour
chips.
Moreover,
applications
protection
preparation
high-resolution
CCLs.
Finally,
future
prospects
high-resolution,
displays.
Advanced Materials,
Год журнала:
2023,
Номер
36(9)
Опубликована: Дек. 2, 2023
Abstract
Highly
efficient
near‐infrared
(NIR)
luminescent
nanomaterials
are
urgently
required
for
portable
mini
or
micro
phosphors‐converted
light‐emitting
diodes
(pc‐LEDs).
However,
most
existing
NIR‐emitting
phosphors
generally
restricted
by
their
low
photoluminescence
(PL)
quantum
yield
(QY)
large
particle
size.
Herein,
a
kind
of
highly
NIR
nanophosphors
is
developed
based
on
copper
indium
selenide
dots
(CISe
QDs).
The
PL
peak
these
QDs
can
be
exquisitely
manipulated
from
750
to
1150
nm
altering
the
stoichiometry
Cu/In
and
doping
with
Zn
2+
.
Their
absolute
PLQY
significantly
improved
28.6%
92.8%
via
coating
ZnSe
shell.
By
combining
commercial
blue
chip,
an
pc‐LED
fabricated
remarkable
photostability
record‐high
radiant
flux
88.7
mW@350
mA
among
Pb/Cd‐free
QDs‐based
pc‐LEDs.
Particularly,
such
acted
as
excellent
luminescence
converter
micro‐LEDs
microarray
diameters
below
5
µm,
which
exceeds
resolutions
current
inkjet
display
pixels.
findings
may
open
new
avenues
exploration
in
variety
applications.
Advanced Functional Materials,
Год журнала:
2023,
Номер
34(10)
Опубликована: Ноя. 23, 2023
Abstract
For
the
new
display
technology
based
on
quantum
dots
(QDs),
achieving
high‐precision
red,
green,
and
blue
pixel
arrays
has
always
been
a
research
focus
in
pursuit
of
high‐quality
vivid
image
displays.
However,
problems
such
as
material
stability
process
environment
make
it
difficult
to
guarantee
quality
patterns.
The
optical
patterning
represented
by
direct
photolithography
is
considered
highly
promising
method
for
ultrafine
patterns
at
submicron
level.
This
prepares
patterned
dot‐polymer
films
through
light‐induced
chemical
changes.
paper
reviews
progress
focused
QD‐polymer
materials
presents
recent
advances
processes
monochromatic/multicolor
light
patterning.
article
classifies
QD‐polymers
into
three
categories
combining
QDs
with
polymers
different
ways,
including
polymer‐coated
QDs,
QD
ligands,
photocrosslinkers
QDs.
Their
synthesis
schemes,
functional
features,
challenges
are
also
presented.
In
addition,
scheme
remove
photomask
during
lithography
using
lasers
field
modulation
proposed.
It
aims
provide
readers
researchers
some
generalized
information
improvement
ideas.
can
further
advance
development
QD‐polymers.
ACS Applied Materials & Interfaces,
Год журнала:
2024,
Номер
16(4), С. 5050 - 5057
Опубликована: Янв. 16, 2024
Water-soluble
quantum
dots
(QDs)
are
necessary
to
prepare
patterned
pixels
or
films
for
high-resolution
displays
with
less
environmental
burden
but
very
limited
by
the
trade-off
between
photoluminescence
and
stability
of
QDs.
In
this
work,
we
proposed
synthesizing
water-soluble
QDs
simultaneous
excellent
luminescence
properties
high
coating
amphiphilic
poly(maleic
anhydride-alt-1-octadecene)-ethanol
amine
(PMAO-EA)
polymer
on
surface
silane-treated
These
coated
show
a
yield
(PLQY)
as
94%,
they
have
good
against
light
irradiation
thermal
attacks,
owing
suppression
nonradiative
recombination
layer
isolation
oxygen
water
silica
layer.
The
QDs,
mixed
ethylene
glycol,
enable
inkjet
printing
QD
color
conversion
(QD-CCFs)
an
average
diameter
68
μm
each
pixel
PLQY
91%.
QD-CCFs
demonstrated
fabricate
red-emitting
mini-LEDs
combining
blue
mini-LED
chips,
which
external
efficiency
25.86%
luminance
2.44
×
107
cd/m2.
We
believe
that
strategy
is
applicable
other
paves
avenue
environmentally
friendly
mini/micro-LED
displays.
