Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 21, 2025
Abstract
Multicolor
photochromic
materials
are
highly
attractive
in
high‐end
intelligent
terminal
products
for
on‐demand
information
displays.
It
is
extremely
challenging
to
realize
multicolor
photochromism
by
constructing
multiple
F‐centers
a
single
inorganic
host
through
traditional
trap
engineering
strategy.
Here,
promising
design
strategy
demonstrated
develop
via
manipulating
chemical
coloration
(CC)
photochromics.
To
validate
this,
the
colored
BaMgSiO
4
synthesized
adding
different
colorants
(Co,
Cr,
Nd,
etc.),
displaying
both
bright
color
and
high
efficiency
with
fast
response
speed
sunlight.
Upon
UV
or
sunlight
irradiation,
(PC)
can
effectively
composite
CC,
then
achieving
reversible
chromism
(deep
blue
gray
black
@Co,
dark
green
reddish
brown
@Cr,
pale
purple
deep
@Nd,
etc.)
precise
regulation
of
light
response.
The
designed
components
exhibit
display
detection,
showing
great
potential
ceramic
backplate
dosimetry.
These
results
provide
new
perspective
designing
high‐quality
systems,
greatly
enriching
aesthetic
versatility
flexibility
smart
wearable
devices.
Abstract
Optical
information
storage
technology
offers
several
advantages,
including
cost‐effectiveness,
multidimensional
storage,
and
rewritable
capability.
Consequently,
it
has
become
increasingly
popular
for
optical
media.
Herein,
a
novel
material
Na
2
CaGe
O
6
:Bi
3+
(NCGO:Bi
)
is
developed
using
non‐equivalent
substitution
strategy,
which
exhibits
photochromic
(PC)
ultraviolet
persistent
luminescence
(UV
PersL)
properties.
NCGO:Bi
demonstrates
excellent
white‐to‐brown
PC
performance
under
254
nm
light
irradiation.
The
brown
phosphor
can
be
effectively
bleached
425
or
thermal
stimulation,
demonstrating
reversibility
over
multiple
cycles.
Additionally,
the
displays
UV
PersL
characteristics.
representative
sample
NCGO:0.001Bi
with
duration
time
exceeding
10
h
after
excitation,
peaking
at
358
nm.
Simultaneously,
due
to
electrons
captured
by
deep
traps
released
via
low‐energy
also
photostimulated
Specifically,
oxygen
vacancies
(V
are
identified
primarily
responsible
observed
phenomena
X‐ray
photoelectron
spectroscopy
(XPS)
electron
paramagnetic
resonance
(EPR)
analyses.
Overall,
this
work
indicates
that
combination
of
light‐induced
in
single
potential
designing
advanced
luminescent
materials
application
storage.
Abstract
Photochromic
materials
have
shown
significant
potential
in
a
plethora
of
possible
applications.
However,
practical
applications,
they
remain
limited
by
intricate
multi‐stage
synthesis
processes
and
restricted
range
photochromic
colors.
Modulating
the
chromatic
properties
involves
an
manipulation
their
chemical
composition,
crystal
structure,
trapping
energy
levels,
rendering
it
extremely
challenging
to
achieve
desired
color
gamut.
In
this
study,
apatite‐type
are
rapidly
synthesized
using
microwave‐assisted
approach.
The
behavior
is
systematically
examined
substituting
F⁻
ions
with
Cl⁻
ions,
facilitating
transformation
centers
from
pink
green
ultimately
blue.
Notably,
prominent
reflectance
absorption
peak
≈554
nm
exhibited
gradual
red
shift
625
nm.
A
thorough
characterization
reveals
that
large
wavelength
F‐center
arises
effective
modulation
levels
differing
trap
distributions
linked
photochromism
observed
across
various
Sr₅(PO₄)₃F₁₋
x
Cl
:1%Eu.
Finally,
applications
these
multicolor
compounds
demonstrated
routine
decorations
sophisticated
multi‐hued
cryptographic
technologies.
These
findings
highlight
efficacy
management
optimizing
considerable
capability
for
on‐demand
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 21, 2025
Abstract
Multicolor
photochromic
materials
are
highly
attractive
in
high‐end
intelligent
terminal
products
for
on‐demand
information
displays.
It
is
extremely
challenging
to
realize
multicolor
photochromism
by
constructing
multiple
F‐centers
a
single
inorganic
host
through
traditional
trap
engineering
strategy.
Here,
promising
design
strategy
demonstrated
develop
via
manipulating
chemical
coloration
(CC)
photochromics.
To
validate
this,
the
colored
BaMgSiO
4
synthesized
adding
different
colorants
(Co,
Cr,
Nd,
etc.),
displaying
both
bright
color
and
high
efficiency
with
fast
response
speed
sunlight.
Upon
UV
or
sunlight
irradiation,
(PC)
can
effectively
composite
CC,
then
achieving
reversible
chromism
(deep
blue
gray
black
@Co,
dark
green
reddish
brown
@Cr,
pale
purple
deep
@Nd,
etc.)
precise
regulation
of
light
response.
The
designed
components
exhibit
display
detection,
showing
great
potential
ceramic
backplate
dosimetry.
These
results
provide
new
perspective
designing
high‐quality
systems,
greatly
enriching
aesthetic
versatility
flexibility
smart
wearable
devices.
