Molecules,
Год журнала:
2024,
Номер
30(1), С. 42 - 42
Опубликована: Дек. 26, 2024
In
this
article,
a
series
of
novel
conducting
copolymers
P(FuPy-co-EDOT)
are
prepared
via
cyclic
voltammetry
electropolymerization
method
by
using
N-furfuryl
pyrrole
(FuPy)
and
3,4-ethylenedioxythiophene
(EDOT)
as
comonomers.
The
molecular
structure,
surface
morphology,
electrochemical,
optical
properties
the
resulting
characterized
in
detail
upon
varying
feed
ratios
FuPy/EDOT
range
1/1
to
1/9.
results
demonstrate
that
with
higher
proportion
EDOT
units
(FuPy/EDOT:
2/8~1/9)
possess
good
redox
activity,
tunable
absorption
performances,
low
band
gaps
(1.75~1.86
eV).
Spectroelectrochemistry
studies
indicate
increased
show
strengthened
electrochromic
characteristics,
exhibiting
red-to-green-to-blue
multicolor
reversible
transition,
especially
for
P(FuPy1-co-EDOT9)
copolymer
films.
They
also
contrast
(9~34%),
fast
response
time
(0.8~2.4
s),
coloring
efficiency
(110~362
cm2
C−1).
Additionally,
complementary
bilayer
P(FuPy-co-EDOT)/PEDOT
devices
(ECDs)
assembled
evaluated
hold
excellent
switching
performances
relatively
high
(25%),
rapid
(0.9
satisfactory
(416
Together
superior
open
circuit
memory
cycling
stability,
they
can
be
used
new
type
material
have
considerable
prospects
promising
candidates
devices.
Molecules,
Год журнала:
2025,
Номер
30(4), С. 973 - 973
Опубликована: Фев. 19, 2025
Electrochromic
(EC)
technology
has
become
one
of
the
smart
technologies
with
most
potential
for
development
and
application
at
this
stage.
Based
on
electrochromic
devices
(ECDs),
shown
extraordinary
in
fields
windows,
display
devices,
sensing
systems.
With
optimization
iteration
various
core
components
ECDs,
electrolyte
layer,
a
key
component,
evolved
from
its
initial
liquid
state
to
quasi-solid
solid
state.
As
driven
by
increasing
demands,
trend
indicates
that
all-solid-state,
transparent
electrolytes
will
likely
future
form
layer.
Recently,
ionic
(IL)-based
field
electrochromism
attracted
lot
attention
due
their
ability
bring
outstanding
EC
cycling
stability,
thermal
wider
operating
voltage
range
they
are
regarded
as
new
generation
materials
application.
Although
compared
conventional
electrolytes,
IL-based
have
characteristics
high
price,
viscosity,
low
conductivity,
still
considered
promising
applications.
However,
so
far,
there
been
lack
comprehensive
analysis
reports
“Research
progress
liquid-based
devices”
within
field.
In
article,
research
ECDs
be
summarized
three
perspectives:
liquid,
quasi-solid,
The
directions
discussed.
Nano Letters,
Год журнала:
2025,
Номер
25(6), С. 2342 - 2349
Опубликована: Янв. 31, 2025
Electrochromic
(EC)
technology
can
adjust
optical
properties
under
electrical
stimulation
with
broad
applications
in
smart
windows,
displays,
and
camouflage.
However,
significant
challenges
remain
developing
inorganic
EC
films
high
durability,
rapid
response,
mechanical
flexibility
due
to
intrinsic
brittleness
dense
microstructure.
Herein,
a
nanostructured
quasiplanar
heterointerface
(Q-PHI)
is
first
introduced
into
the
electrode/EC
interlayer
realize
robust,
ultrafast
switching
tungsten
trioxide
(WO3)
film.
The
200
nm-thick
Q-PHI
WO3
film
exhibits
remarkable
performance,
including
large
contrast
(81.8%
83.4%
at
700
1500
nm),
of
2.4
1.8
s,
excellent
stability
(10,000
cycles
21.3%
optical-contrast
loss).
A
large-area
(20
×
15
cm2)
flexible
window
also
successfully
achieved.
mechanism
lies
intense
built-in
electric
field
strong
interfacial
bonding
induced
by
unique
longitudinal
gradient
distribution,
greatly
enhancing
electron/ion
transport
kinetics,
surface
ion
adsorption,
durability.
Nano-Micro Letters,
Год журнала:
2024,
Номер
17(1)
Опубликована: Дек. 27, 2024
Abstract
Dual-band
electrochromic
devices
capable
of
the
spectral-selective
modulation
visible
(VIS)
light
and
near-infrared
(NIR)
can
notably
reduce
energy
consumption
buildings
improve
occupants'
visual
thermal
comfort.
However,
low
optical
poor
durability
these
severely
limit
its
practical
applications.
Herein,
we
demonstrate
an
efficient
flexible
bifunctional
dual-band
device
which
not
only
shows
excellent
performance
with
a
high
long
cycle
life,
but
also
displays
capacitance
recycling
efficiency
51.4%,
integrating
energy-saving
energy-storage.
The
nanowires
structure
abundant
oxygen-vacancies
oxygen-deficient
tungsten
oxide
endows
it
flexibility
73.1%
85.3%
at
633
1200
nm
respectively.
prototype
assembled
modulate
VIS
NIR
independently
effectively
through
three
distinct
modes
life
(3.3%
capacity
loss
after
10,000
cycles)
(8.8
°C
lower
than
common
glass).
Furthermore,
simulations
that
our
outperforms
commercial
low-emissivity
glass
in
terms
most
climatic
zones
around
world.
Such
windows
represent
intriguing
potential
technology
to
building
efficiency.
Chemical Society Reviews,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
This
review
underscores
the
essential
role
of
gel
materials
in
electrochromic
technology,
offering
a
comprehensive
analysis
gelation
chemistry
and
valuable
insights
into
practical
deployment
gel-based
devices.
Recently,
various
types
of
resonant
cavities
are
widely
fused
with
inorganic
electrochromic
material
WO3
to
compensate
for
its
monotonous
color
modulation
range.
However,
combining
stabilized
flexibility
and
vivid
performance
in
devices
is
limited
by
the
inherent
brittleness
constrained
transparency
commonly
used
top
transparent
electrodes,
such
as
indium
tin
oxide
(ITO).
Herein,
a
novel
electrode-free
structure
Cr/WO3/Au
metal-dielectric-metal
(MDM)
cavity
type
flexible
multicolor
device
based
on
inner-layer
porous
Nylon
66
substrate
reported.
By
implementing
UV-cured
gel
electrolyte
PET
thermoplastic
sealing
process,
exhibits
ultra-flexibility,
retaining
92.9%
initial
after
900
bending
cycles
at
radius
4
mm,
wide
gamut
spanning
hues
from
violet
red,
40.59%
maximum
reflectance,
fast
response
times
(tcolored/tbleached
=
4.5
s/4.8
s).
The
MDM
generates
sharper
scattered
multi-beam
interference
resonance
provides
multi-path
transport
channel
ions,
while
bottom
Au
reflection
layer
serves
conductive
electrode
thus
replacing
electrodes
traditional
sandwich-like
structure.
Moreover,
large-area
multipixel
array
further
proposed
display
different
patterns,
which
demonstrates
potential
applications
future
wearable
electronic
labels
smart
camouflage.
