Inorganics,
Journal Year:
2025,
Volume and Issue:
13(3), P. 72 - 72
Published: Feb. 27, 2025
Chiral
gold
nanomaterials
have
promising
applications
in
biomedicine,
catalysis,
optics
and
other
fields.
However,
the
complexity
of
their
chiral
sources
has
led
to
many
challenges
terms
functional
design
controlled
synthesis.
In
this
paper,
we
systematically
review
development
history
Au
nanomaterials;
deeply
analyze
synthesis
strategy,
construction
mechanism,
performance
optimization
pathway;
discuss
formation
mechanism
light
progress
cutting-edge
research
look
into
future
direction
development.
The
aim
is
provide
theoretical
methodological
support
for
controllable
nanomaterials.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(26)
Published: April 18, 2024
Ultraviolet
circularly
polarized
luminescence
(UV-CPL)
with
high
photon
energy
shows
great
potential
in
light
sources
and
stereoselective
photopolymerization.
However,
developing
luminescent
materials
UV-CPL
performance
remains
challenging.
Here,
we
report
a
pair
of
rare
earth
Ce
Nanoscale,
Journal Year:
2024,
Volume and Issue:
16(17), P. 8563 - 8572
Published: Jan. 1, 2024
Supramolecular
chirality
and
CPL
handedness
of
the
ternary
co-assemblies
can
be
inverted
flexibly
by
adjusting
stoichiometric
ratio
or
changing
achiral
substituents
including
amino
acid
residues
substituted
ethylene
groups.
Advanced Optical Materials,
Journal Year:
2024,
Volume and Issue:
12(21)
Published: May 31, 2024
Abstract
Flexible
circularly
polarized
luminescence
(CPL)
exhibits
significant
potential
for
applications
in
smart
wearable
devices
and
high‐end
anti‐counterfeiting.
However,
existing
technologies
suffer
from
low
dissymmetry
factor
(
g
lum
)
poor
mechanical
reliability.
Here,
a
metal
halide
perovskite
is
employed
as
the
emitter
to
construct
efficient
robust
flexible
CPL
films
through
facile
strategy
of
bilayer
stacking,
which
comprises
layer
nanocrystalline
embedded
polymer
film
photonic
crystal
based
on
polymerized
chiral
liquid
crystals
(LCs).
The
photoluminescence
efficiency
nanocrystals
polyacrylonitrile
(PAN)
matrix
improved
by
incorporating
an
appropriate
amount
phenylethylammonium
bromide
(PEABr)
passivation
agent,
helical
arrangement
optical
activity
free‐standing
are
found
be
highly
related
supporting
substrates.
Upon
resulting
composite
extremely
high
|
values
up
1.81,
representing
highest
value
among
reported
CPL‐active
films.
Moreover,
demonstrate
remarkable
robustness,
shows
negligible
degradation
terms
even
after
1000
bending
cycles
at
radius
2
mm.
Based
films,
advanced
anti‐counterfeit
labels
with
switchable
patterns
under
circular
polarizers
demonstrated.
Advanced Optical Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 9, 2024
Abstract
Inspired
by
the
color‐changing
abilities
of
natural
organisms,
this
research
focuses
on
design
and
fabrication
mechanochromic
liquid
crystal
photonic
thin
films
with
periodic
self‐assembly
structures.
Benefiting
from
its
unique
3D
self‐assembled
structure
a
body‐centered
cubic
lattice,
BP
I
film
exhibits
excellent
mechanical
properties,
characterized
superior
elasticity
toughness
due
to
presence
rigid
flexible
microdomains
suitable
dislocation
line
volumes.
As
strain
increases,
structural
color
demonstrates
repeatable
rapid
shift
red
blue,
covering
entire
visible
light
spectrum
high
reflectivity.
The
incorporation
fluorescent
molecules
further
enhances
properties
endowing
circularly
polarized
luminescence
under
UV
irradiation.
Utilizing
different
dyes
as
inks,
arbitrary
patterned
writing
can
be
performed
BPI
film,
enabling
specific
information
hiding
encryption.
prepared
label
environmental
stability,
presenting
promising
applications
in
storage,
anti‐counterfeiting,
displays.
study
may
contribute
deeper
understanding
relationship
between
microstructure,
deformation,
optical
potentially
advancing
development
innovative
responsive
materials
multifunctional
devices.
ACS Macro Letters,
Journal Year:
2024,
Volume and Issue:
13(6), P. 673 - 680
Published: May 16, 2024
Chiroptical
nanomaterials
with
circularly
polarized
luminescence
(CPL)
performance
have
aroused
increasing
attention.
Herein,
multicolor
CPL-active
Janus
nanofibers
are
prepared
through
a
simple
parallel
electrospinning
method
using
chiral
helical
polyacetylenes
as
the
source
and
achiral
fluorophores
fluorescent
source.
Interestingly,
despite
direct
spatial
isolation
between
component
component,
blue
green
CPL
emissions
can
still
be
obtained
due
to
fluorescence-selective
absorption
behavior
of
polyacetylenes,
satisfactory
dissymmetric
factor
(glum)
2
×
10-2
2.5
10-3,
respectively.
Moreover,
by
taking
advantage
circular
polarization
fluorescence
energy
transfer
process,
red
emission
is
further
achieved
donors
fluorophore
an
acceptor.
The
present
work
offers
facile
approach
prepare
multilevel-structured
chiroptical
materials
promising
application
potentials
in
flexible
photoelectric
device.
Angewandte Chemie International Edition,
Journal Year:
2023,
Volume and Issue:
62(27)
Published: April 26, 2023
Chiral
inorganic
superstructures
have
received
considerable
interest
due
to
the
chiral
communication
between
compounds
and
organic
additives.
However,
demanding
fabrication
complex
multilevel
structure
seriously
hinder
understanding
of
transfer
self-assembly
mechanisms.
Herein,
we
use
CuO
as
a
model
system
study
formation
process
hierarchical
structures.
Based
on
simple
mild
synthesis
route,
time-resolved
morphology
in
situ
chirality
evolution
could
be
easily
followed.
The
superstructure
involves
assembly,
including
primary
nanoparticles,
intermediate
bundles,
at
different
growth
stages.
Successive
redshifts
enhancements
CD
signal
support
from
surface
penicillamine
superstructure.
Full-field
electro-dynamical
simulations
reproduced
structural
allowed
us
predict
its
modulation.
This
work
opens
door
large
family
materials
where
molecule-guided
can
specifically
designed
follow
bottom-up
pathway.
