Angewandte Chemie,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 9, 2024
Abstract
Zero‐dimensional
(0D)
structured
lead‐free
metal
halides
have
recently
attracted
widespread
attention
due
to
their
high
photoluminescence
quantum
yield
(PLQY)
and
negligible
self‐absorption,
showing
enormous
potential
as
optical
waveguides
towards
miniaturized
photonic
devices.
However,
the
great
difficulty
in
growth
of
rod‐like
nano/micro‐sized
morphologies,
such
applications
been
less
explored.
Herein,
a
new‐type
emissive
organic–inorganic
manganese
(II)
halide
crystal
(TPS
2
MnCl
4
,
TPS=C
18
H
15
S,
triphenylsulfonium)
form
microrods
is
synthesized
via
facile
chloride
ion
(Cl
−
)
induced
oriented
method.
Due
combination
attractive
features
PLQY
86
%,
self‐absorption
smooth
surface,
TPS
are
well
suited
for
use
waveguide
with
an
ultra‐low
loss
coefficient
1.20
⋅
10
−4
dB
μm
−1
superior
that
most
hybrids,
organic
materials,
polymers
nanoclusters
best
our
knowledge.
Importantly,
can
further
work
dual‐mode
waveguides,
combining
active
passive
light
transmission
functionalities
one
single
crystal.
In
addition,
also
display
remarkable
performance
lighting
anti‐counterfeiting
distinct
properties
commendable
stability.
ACS Applied Materials & Interfaces,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 8, 2025
Anticounterfeiting
technologies
meet
challenges
in
the
Internet
of
Things
era
due
to
rapidly
growing
volume
objects,
their
frequent
connection
with
humans,
and
accelerated
advance
counterfeiting/cracking
techniques.
Here,
we,
inspired
by
biological
fingerprints,
present
a
simple
anticounterfeiting
system
based
on
perovskite
quantum
dot
(PQD)
fingerprint
physical
unclonable
function
(FPUF)
cooperatively
utilizing
spontaneous-phase
separation
polymers
selective
situ
synthesis
PQDs
as
an
entropy
source.
The
FPUFs
offer
red,
green,
blue
full-color
identifiers
random
three-dimensional
(3D)
morphology,
which
extends
binary
multivalued
encoding
tuning
polymer
components,
enabling
high
capacity
(about
108570000,
far
surpassing
that
biometric
fingerprints).
strategy
is
compatible
mainstream
production
techniques
are
widely
used
traditional
low-cost
printed
labels
including
spray
printing,
stamping,
writing,
laser
avoiding
complicated
fabrication.
Macrographical
patterns
micro/nanofingerprint
multiscale-tailorable
inter-ridge
sizes
can
be
fused
into
single
FPUF
label,
satisfying
different
levels
requirements.
Furthermore,
smart
scheme
enhanced
deep
learning
characteristic
comparison
leveraged,
high-efficiency,
high-accuracy
authentication
our
achieved
even
for
increasingly
huge
databases
imperfectly
captured
images
from
users.
Advanced Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 13, 2025
Abstract
Halide
perovskites
(HPs),
emerging
as
a
noteworthy
class
of
semiconductors,
hold
great
promise
for
an
array
optoelectronic
applications,
including
anti‐counterfeiting,
light‐emitting
diodes
(LEDs),
solar
cells
(SCs),
and
photodetectors,
primarily
due
to
their
large
absorption
cross
section,
high
fluorescence
efficiency,
tunable
emission
spectrum
within
the
visible
region,
tolerance
lattice
defects,
well
adaptability
solution‐based
fabrication
processes.
Unlike
luminescent
HPs
with
band‐edge
emission,
trivalent
rare‐earth
(RE)
ions
typically
emit
low‐energy
light
through
intra‐4f
optical
transitions,
characterized
by
narrow
spectra
long
lifetimes.
When
fused,
cooperative
interactions
between
REs
endow
resulting
binary
composites
not
only
properties
inherited
from
parent
materials
but
also
introduce
new
attributes
unattainable
either
component
alone.
This
review
begins
fundamental
characteristics
REs,
followed
particular
focus
on
impact
electronic
structures
associated
energy
transfer
The
advanced
synthesis
methods
utilized
prepare
HPs,
RE‐doped
compounds,
are
overviewed.
Furthermore,
potential
applications
summarized
across
diverse
domains,
high‐fidelity
anticounterfeiting,
bioimaging,
LEDs,
photovoltaics,
photodetection,
photocatalysis,
conclude
remaining
challenges
future
research
prospects.
Open Ceramics,
Год журнала:
2024,
Номер
18, С. 100572 - 100572
Опубликована: Март 22, 2024
Nanostructured
hybrid
functional
perovskite
materials
are
an
exciting
domain
of
electroceramic
and
have
created
attention
among
researchers
due
to
the
coexistence
multiple
properties
like
piezo
ferroelectricity.
It
offers
a
broad
range
applications
in
optics
electronics
technology.
One
its
kinds,
bismuth
sodium
titanate
(Bi0·5Na0·5TiO3-BNT)
nanomaterials,
possesses
integral
significant
role
advanced
electronic
industries.
This
article
aims
systemize
deliberation
related
development
titanate-based
including
study
nanomaterial
morphology
mechanism,
fabrication
methods,
crystal
structure,
many
other
novel
applications.
work
focuses
on
analyzing
behavior
based
synthesis
proposed
approaches
for
optimizing
morphology,
current
challenges.
Challenges
opportunities
connected
with
BNT
nanomaterials
elaborated.
could
motivate
young
develop
BNT-based
so
that
we
get
best
out
research.
ACS Applied Materials & Interfaces,
Год журнала:
2024,
Номер
16(19), С. 24908 - 24919
Опубликована: Май 6, 2024
Perovskite
nanocrystal
(PeNC)
arrays
are
showing
a
promising
future
in
the
next
generation
of
micro-light-emitting-diode
(micro-LED)
displays
due
to
narrow
emission
linewidth
and
adjustable
peak
wavelength.
Electrohydrodynamic
(EHD)
inkjet
printing,
with
merits
high
resolution,
uniformity,
versatility,
cost-effectiveness,
is
among
competent
candidates
for
constructing
PeNC
arrays.
However,
fabrication
red
light-emitting
CsPbBrxI(3–x)
micro-LED
still
faces
challenges,
such
as
low
brightness
poor
stability.
This
work
proposes
design
colloidal
ink
that
specialized
EHD
printing
three-dimensional
enhanced
luminescence
stability
well
being
adaptable
both
rigid
flexible
substrates.
Made
mixture
PeNCs,
polymer
polystyrene
(PS),
nonpolar
xylene
solvent,
enables
precise
control
array
sizes
shapes,
which
facilitates
on-demand
micropillar
construction.
Additionally,
inclusion
PS
significantly
increases
environmental
By
adopting
this
ink,
printer
successfully
fabricated
full-color
3D
spatial
resolution
over
2500
ppi.
It
shows
potential
strategy
high-resolution
robust
color
conversion
layers
displays.
Advanced Materials Technologies,
Год журнала:
2024,
Номер
unknown
Опубликована: Авг. 3, 2024
Abstract
Structural
color
is
a
remarkable
physical
phenomenon
that
exists
widely
in
nature.
Unlike
traditional
rendering
methods,
they
are
realized
mainly
through
micro/nanostructures
interfere,
diffract,
scatter
light,
and
exhibit
long‐life
environmental‐friendly
effects.
In
nature,
few
organisms
use
their
color‐changing
system
to
transmit
information,
such
as
courtship,
warning,
or
disguise.
Meanwhile,
some
natural
inorganic
minerals
can
also
structural
colors.
Learning
from
scientists
have
achieved
large‐scale
design
manufacturing
technology
for
artificial
photonic
crystals.
Photonic
crystals
unique
microstructure
forms
band
gap
under
the
action
of
periodic
potential
field,
consequently
causing
Bragg
scattering
due
arrangement
different
refractive
index
media
within
them.
Because
apparent
ability
form
local
photons
at
crystal
defects,
been
extensively
studied
recent
years
broad
application
prospects
fibers,
optical
computers,
chips,
other
fields.
this
review,
research,
properties,
applications
presented,
well
insight
into
future
developments
Advanced Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 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
Sensors,
Год журнала:
2024,
Номер
24(3), С. 765 - 765
Опубликована: Янв. 24, 2024
This
treatise
studies
a
microoptoelectromechanical
accelerometer
(MOEMA)
with
an
optical
measuring
transducer
built
according
to
the
tunneling
principle
(evanescent
coupling).
The
work
discusses
design
of
accelerometer’s
microelectromechanical
sensing
element
(MSE)
and
states
requirements
for
achieve
sensitivity
threshold
1
µg
m/s2
at
calculated
eigenvalue
MSE.
cover
selection
dimensions,
mass,
eigenfrequency
corresponding
stiffness
spring
suspension,
gravity-induced
cross-displacements.
authors
propose
experimentally
test
positioning
system
represented
by
capacitive
actuator.
approach
allows
avoiding
restrictions
in
fabrication
conditioned
extremely
high
aspect
ratio
deep
silicon
etching
(more
than
100).
designed
MOEMA
is
tested
on
three
manufactured
prototypes.
experiments
show
that
accelerometers
2
µg.
For
dynamic
range
from
minus
0.01
g
plus
g,
average
nonlinearity
accelerometers’
characteristics
ranges
0.7%
1.62%.
maximum
0.015
0.05
2.34%
2.9%,
having
deviation
edges
regions.
power
gain
prototypes
varies
12.321
mW/g
26.472
mW/g.
results
provide
broad
prospects
application
proposed
solutions
integrated
inertial
devices.
Advanced Materials Technologies,
Год журнала:
2024,
Номер
9(11)
Опубликована: Март 12, 2024
Abstract
Patterning
metal
halide
perovskite
thin
films
is
a
necessary
pathway
to
expand
their
optoelectronic
applications.
However,
developing
suitable
patterning
technique
challenging
as
conventional
lithographic
processes
are
either
detrimental
the
layer
or
lack
compatibility
with
scalable
fabrication
used
in
manufacturing
of
printed
electronics.
In
this
work,
complete
bottom‐up
method
proposed
based
on
de‐wetting
from
hydrophobic
molecular
template,
which
constrains
ink
directly
crystallize
selected
hydrophilic
regions.
Octadecylphosphonic
acid
molecules
template
and
effectively
transferred
onto
metal‐oxide
substrates
via
micro‐contact
printing.
This
allows
for
low‐cost,
rapid,
micron‐scale
films.
Facile
control
over
light
transmittance
demonstrated
by
adjusting
amount
exposed
area
corresponding
spectral
shape
changes
shift
film's
appearance
toward
being
color‐neutral.
Finally,
method's
scalability
versatility
shown
fabricating
25
cm
2
patterned
rigid
flexible
substrates.
Fluorescent
lead
halide
perovskite
quantum
dots
(LH
PQDs)
micropatterns
hold
great
potential
for
photonic
applications.
However,
current
photolithography
LH
PQDs
micropatterning
is
hindered
by
their
incompatibility
with
traditional
methods,
which
involve
development
processes
using
numerous
solvents
and
exhibit
poor
stability
due
to
the
ionic
characteristics
of
PQDs.
Herein,
a
direct
in
situ
fabricate
CsPbBr
3
based
on
ultraviolet‐C
light‐driven
debromination
developed.
Using
this
approach,
fluorescent
high
theoretical
information
storage
capacity
(up
10
750205
)
can
be
achieved
single
step,
without
need
tedious
processes.
Furthermore,
fabricated
show
stability,
remaining
undamaged
even
after
immersion
water
6
months.
The
combination
excellent
optical
properties,
development‐free
process,
low
cost
makes
strategy
very
promising
patterning
toward
integrations.
Angewandte Chemie International Edition,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 9, 2024
Abstract
Zero‐dimensional
(0D)
structured
lead‐free
metal
halides
have
recently
attracted
widespread
attention
due
to
their
high
photoluminescence
quantum
yield
(PLQY)
and
negligible
self‐absorption,
showing
enormous
potential
as
optical
waveguides
towards
miniaturized
photonic
devices.
However,
the
great
difficulty
in
growth
of
rod‐like
nano/micro‐sized
morphologies,
such
applications
been
less
explored.
Herein,
a
new‐type
emissive
organic–inorganic
manganese
(II)
halide
crystal
(TPS
2
MnCl
4
,
TPS=C
18
H
15
S,
triphenylsulfonium)
form
microrods
is
synthesized
via
facile
chloride
ion
(Cl
−
)
induced
oriented
method.
Due
combination
attractive
features
PLQY
86
%,
self‐absorption
smooth
surface,
TPS
are
well
suited
for
use
waveguide
with
an
ultra‐low
loss
coefficient
1.20
⋅
10
−4
dB
μm
−1
superior
that
most
hybrids,
organic
materials,
polymers
nanoclusters
best
our
knowledge.
Importantly,
can
further
work
dual‐mode
waveguides,
combining
active
passive
light
transmission
functionalities
one
single
crystal.
In
addition,
also
display
remarkable
performance
lighting
anti‐counterfeiting
distinct
properties
commendable
stability.
