Journal of Physics D Applied Physics,
Journal Year:
2024,
Volume and Issue:
58(8), P. 085504 - 085504
Published: Dec. 10, 2024
Abstract
V
2
O
5
,
an
inorganic
electrochromic
(EC)
material
with
rich
color
variation
and
natural
abundance,
has
received
extensive
attention
due
to
its
polychromatic
properties
during
the
EC
process.
However,
research
on
achieving
multicolor
tuning
by
combining
structural
generated
from
light-matter
interactions
of
is
rare.
Here,
based
detailed
investigation
process
parameters
we
propose
a
new
optical
design
colorful
electrode
/W
Fabry–Pérot
cavity
constructed
magnetron
sputtering
glass
substrate.
By
varying
thickness
top
layer
reflective
electrodes
exhibit
seven
different
initial
colors.
Importantly,
designed
exhibits
vivid
wide
gamut
when
applying
voltage
−0.6–1.6
V.
After
200
cycles,
device
can
still
change,
demonstrating
potential
glass/W/V
in
fields
such
as
camouflage
anti-counterfeiting.
Abstract
Inorganic
electrochromic
(EC)
devices
with
vibrant
multicolor
variations
are
at
the
forefront
of
EC
technology
and
play
a
crucial
role
in
display
applications.
Expanding
dynamic
color
gamut
single
device
has
long
been
subject
investigation.
Herein,
design
is
presented
that
employs
vanadium
oxide
(VO
x
)
as
layer
tungsten
(W)
reflective
to
construct
an
asymmetric
Fabry–Pérot
(F–P)
nanocavity,
enabling
wide
displays.
By
leveraging
different
thicknesses
VO
,
this
allows
for
range
changes
from
yellow
orange
magenta,
purple,
blue,
cyan,
green
through
modulation.
Notably,
typical
W‐VO
(150
nm)
F–P
nanocavity
demonstrates
impressive
modulation
110
nm,
exceeding
capabilities
existing
nanocavities.
In‐depth
structural
analysis
reveals
insertion
extraction
Li
+
ions
significantly
influence
microstructure
optical
properties
film,
allowing
greater
refractive
index
adjustment
than
WO
3
.
This
facilitates
precise
control
expansion
nanocavity's
interference
effects.
study
provides
new
perspective
developing
dynamically
adjustable
displays
highlights
their
potential
applications
flexible
technologies.
Advanced Optical Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 27, 2025
Abstract
A
series
of
benzothiadiazole
(BT)‐based
dichroic
dyes
with
donor–acceptor–donor
(D–A–D)
molecular
frameworks
is
designed
and
synthesized,
exhibiting
absorption
spectra
that
cover
the
visible
light
region
are
tunable
through
modifications.
Most
newly
synthesized
show
high
ratios
order
parameters,
ensuring
strong
optical
anisotropy
good
alignment
within
liquid
crystal
host
mixture.
The
performance
individual
in
smart
window
applications
evaluated,
transmittance
changes
observed
under
dynamic
electric
fields,
demonstrating
their
potential
for
use
electrically
windows.
To
achieve
full
visible‐light
modulation,
combination
complementary
screened
an
optimized
mixture
Mix‐7
obtained,
which
not
only
achieves
coverage
but
also
demonstrates
smooth
modulation
varying
voltages.
Finally,
a
prototype
filled
fabricated
to
validate
continuous
tunability
dye‐doped
crystal‐based
systems.
Additionally,
further
introduction
polarizer
film
significantly
reduces
demo,
especially
OFF
state
presents
almost
completely
dark
state,
highlighting
automotive
applications.
Coatings,
Journal Year:
2023,
Volume and Issue:
13(11), P. 1879 - 1879
Published: Nov. 1, 2023
Electrochromism
induces
reversible
changes
of
coloration
in
specific
organic
and
inorganic
materials
through
electrical
charge/discharge
reactions.
When
processed
into
thin
films,
electrochromic
metal
oxides
can
be
integrated
glazing
applications
such
as
displays,
rearview
mirrors,
goggles
and,
most
notably,
smart
windows
energy-efficient
buildings.
Over
the
years,
use
spray
coating
a
liquid-based
approach
has
been
acknowledged
for
its
cost-efficient,
high-throughput
samples
production
with
low
volume
consumption.
It
represents
an
interesting
alternative
to
vacuum
processes
other
wet
methods,
suitably
responding
current
limitations
films
by
offering
improved
control
over
deposition
parameters
capacities
up-scaling,
together
lowered
energetic
economic
costs.
The
present
review
summarizes
main
theoretical
practical
aspects
coating,
notably
distinguishing
room-temperature
methodologies
from
pyrolysis-based,
under
heating
protocols.
families
functional
are
then
screened
discussed,
establishing
how
processing
challengingly
lead
higher
levels
optical
contrast,
commutation
kinetics,
efficiency
cycling
durability,
low-toxic
environment-friendly
precursors
favored
while
sustaining
large
areas.
Advanced Photonics Research,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Aug. 18, 2024
With
increasing
demand
for
energy
saving
and
environmental
sustainability,
electrochromic
devices
(ECDs)
are
considered
as
emerging
display
with
low
consumption.
While
various
reflective‐type
displays
produce
images
energy,
achieving
full
color
often
involves
much
device
complexity
nonflexibility.
Multicolor
ECDs
aim
to
realize
displays,
surpassing
the
current
monochromic
type
or
limited
coloration
capabilities
in
a
1D
space.
Enhancing
flexibility
is
also
highly
desirable
use
of
wearable
flexible
electronics
health
monitoring
advanced
textiles
easy
visualization.
In
this
review,
recent
advances
multicolor
examined.
Several
primary
strategies
achieve
ECD
described,
including
material
modifications,
overlay,
dye‐mediated
colorations.
addition,
developments
explored,
emphasizing
novel
materials
fabrication
processes
that
improve
mechanical
durability
reliability
under
deformation.
It
expected
review
will
provide
comprehensive
understanding
applications
smart
windows,
electronics.
A
smart
window
that
dynamically
regulates
light
transmittance
is
crucial
for
modern
life
end-users
and
promising
on-demand
optical
devices.
The
advent
of
three-dimensional
(3D)
photonic
crystal
microspheres
has
enriched
the
functions
a
window.
However,
formed
by
polymer
encounters
poor
mechanical
strength
microstructural
defects.
Herein,
to
solve
this
limitation,
we
report
microsphere-based
composed
tightly
packed
cross-linked
(as
precursor)
containing
organic
photochromic
dyes,
followed
compression
under
high
elastic
state.
When
excited
an
ultraviolet
supply,
our
showed
rapid
reversible
fluorescent
photoluminescence
without
fatigue
(50
cycles).
Moreover,
bulk
devices
with
microsphere
network
structure
enable
excellent
(hardness
reached
0.158
GPa)
visible-light
transparency.
Interestingly,
QR
code
can
be
recognized
visible
exposure
but
not
because
Our
method
generally
provided
paradigm
various
amorphous
polymers,
which
regarded
as
simple
effective
approach
build
versatile
strategy
introduce
ideal
marketplace
economic
community
benefits.
