Advanced Functional Materials,
Journal Year:
2023,
Volume and Issue:
34(17)
Published: Dec. 28, 2023
Abstract
The
assembly
of
functional
materials
into
microstructures,
which
extends
unique
features
such
as
enlarged
specific
surface
areas,
effective
conduction
paths,
higher
material
utilization
ratios,
and
ordered
alignment
compared
to
continuous
films,
has
gained
prominence
in
various
fields.
Achieving
high
performance
electronics
requires
cooperation
among
building
blocks,
fabrication
methods,
device
design.
However,
the
remaining
challenge
is
obtaining
highly
regular
large‐scale
patterns
with
controllable
methods
while
maximizing
performances.
Manipulating
liquid
assistance
a
feasible
approach
realizing
dewetting,
molecule
packing,
customized
This
review
focuses
on
recent
advances
preparing
applying
liquid‐induced
microstructures.
predominant
preparation
technologies
are
summarized,
including
flow‐enabled
assembly,
nanoimprint
lithography,
capillary‐bridge‐mediated
assembly.
Furthermore,
diverse
applications
microstructure‐based
electronics,
flexible
transparent
electrodes,
organic
field‐effect
transistors,
gas
sensors,
photodetectors,
solar
cells,
demonstrated.
High-resolution
printing
of
conformal
circuits
on
curved
surfaces
is
critical
to
achieving
structure–function
integration
in
electromechanically
coupled
components
like
antennas.
However,
existing
techniques
such
as
inkjet
or
extrusion-based
fail
conformally
deposit
microscale
conductive
freeform
with
curvature
variations.
Herein,
we
propose
an
innovative
electrohydrodynamic
(EHD)
strategy
that
can
adaptively
adjust
the
nozzle-to-substrate
distance
and
velocity
according
surface
curvature,
enabling
direct
diverse
resolution
high
uniformity.
A
path-planning
algorithm
developed
based
target
morphology
captured
from
scanned
3D
point
cloud
data.
The
at
each
along
trajectory
be
calculated
Gaussian
mapping
angle.
This
makes
deposition
rate
well
match
stage's
moving
speed,
facilitating
uniform
EHD
patterns
a
line
width
39.31
±
4.06
μm
different
curvatures
ranging
10
2000
m–1.
As
proof
concept,
snowflake
pattern
good
conductivity
naturally
insulated
conch
smallest
35.74
4.24
μm.
metasurface
feature
arrays
specially
printed
radome-shaped
polymeric
surface,
exhibiting
dual-band
cloaking
reduced
scattering
characteristics
compared
conventional
metal
substrates.
We
envision
proposed
velocity-adaptive
technique
would
mature
into
promising
versatile
tool
fabricate
for
potential
applications
antennas
functional
sensing
electromagnetic
surfaces.
Advanced Optical Materials,
Journal Year:
2023,
Volume and Issue:
12(2)
Published: Sept. 4, 2023
Abstract
As
a
new
inorganic
lead‐free
perovskite,
cesium
copper
iodide
(CsCu
2
I
3
)
has
attracted
wide
attention
in
the
field
of
photodetectors
due
to
its
non‐toxicity,
good
air
and
thermal
stability,
excellent
optoelectronic
properties.
However,
random
growth
disordered
distribution
CsCu
crystals
during
their
preparation
results
poor
crystal
quality,
seriously
limiting
applications.
Highly
ordered
formation
with
high
quality
for
high‐performance
remains
major
challenge.
Here,
an
ingenious
nanoimprinting
technology
is
utilized
obtain
based
on
highly
aligned
nanowires
(NWs).
Owing
photodetector
exhibits
responsivity
12.35
A
W
−1
(310
nm)
89.73
mA
(365
nm),
respectively,
as
well
polarization
light
detection
dichroism
ratio
up
2.28.
Additionally,
device
flexible
substrate
retains
initial
level
performance
even
after
being
bent
2000
times.
Remarkably,
superior
stability
maintains
placed
natural
environment
1
month
without
any
encapsulation.
Photonics Research,
Journal Year:
2023,
Volume and Issue:
11(12), P. 2231 - 2231
Published: Oct. 6, 2023
The
fabrication
of
different
perovskite
materials
with
superior
properties
into
lateral
heterostructures
can
greatly
improve
device
performance
and
polarization
sensitivity.
However,
the
sensitivity
perovskites
to
solvents
environmental
factors
makes
heterojunctions
difficult.
Here,
we
realize
high-quality
microwire
crystal
heterojunction
arrays
using
regioselective
ion
exchange.
Photodetectors
responsivity
detectivity
up
748
A
W
−1
8.2×10
12
Jones
are
fabricated.
photodetector
exhibits
as
high
13.5
at
0
V
bias.
In
addition,
ultra-high
a
dichroic
ratio
5.6,
81%
its
was
maintained
after
144
days
exposure
air.
Advanced Materials Interfaces,
Journal Year:
2024,
Volume and Issue:
11(9)
Published: Jan. 16, 2024
Abstract
Adapting
sheets
to
doubly
curved
surfaces
is
a
longstanding
challenge
in
various
engineering
disciplines,
from
flexible
and
stretchable
electronics
the
automotive
industry.
However,
current
understanding
often
focuses
on
specific
scenarios
neglects
diverse
range
of
substrate
conditions
encountered
nature.
This
study
investigates
pattern
formation
confined
core‐shell
structures
by
modulating
levels
stiffness
curvature
substrate.
Beginning
with
Föppl–von
Kármán
equation,
this
theory
uncovers
how
degree
confinement
determines
location
wrinkles
within
sheets.
Furthermore,
synchronization
patterns
observed:
dimple
or
buckyball
simultaneously
hierarchical
due
boundary
constraints.
The
analytical
models
elucidate
these
phenomena,
both
macroscopic
microscopic
features
can
be
systematically
engineered
align
quantitative
predictions.
research
expands
sheet
conformation
problem
paves
way
for
across
structures.
