Multicolor Rare‐Earth Film with Ultra‐Long Afterglow for Diverse Energy‐Saving Applications
Xinyi Lin,
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Hui Han,
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Meifang Yang
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et al.
Advanced Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 20, 2025
Abstract
Rare‐earth
afterglow
materials,
with
their
unique
light‐storage
properties,
show
great
promise
for
diverse
applications.
However,
broader
applicability
is
constrained
by
challenges
such
as
poor
solvent
compatibility,
limited
luminescent
efficiency,
and
monochromatic
emissions.
In
this
study,
these
limitations
are
addressed
blending
ZnS
various
rare‐earth
phosphors
including
(Sr
0.75
Ca
0.25
)S:Eu
2+
;
SrAl
2
O
4
:Eu
,
Dy
3+
Sr
MgSi
7
to
modulate
deep
trap
mechanisms
significantly
enhance
both
the
light
capture
capabilities.
Using
electrospinning,
a
large‐area
(0.4
m
×
3
m)
film
successfully
fabricated
tunable
colors
an
extended
duration
exceeding
30
h.
This
demonstrates
thermoluminescence,
enabling
potential
integration
into
fire‐rescue
protective
clothing
enhanced
emergency
visibility.
greenhouse
settings,
it
effectively
supports
chlorophyll
synthesis
optimizes
conditions
plant
growth
over
24‐h
cycle.
For
tunnel
garage
applications,
captures
stores
from
vehicle
headlights
at
distances
of
up
70
meters.
The
scalability
cost‐effectiveness
underscore
its
considerable
real‐world
applications
across
multiple
fields,
marking
significant
advancement
in
sustainable
illumination
technology.
Language: Английский
Molten Salt Synthesis of Single-Crystalline Sr2MgSi2O7: Eu2+, Dy3+ Nanoplates: Breaking the Afterglow-Size Trade-off
Lang Pei,
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Yingqiang Yu,
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Zhanfeng Ma
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et al.
Inorganic Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 25, 2025
Sr2MgSi2O7/Eu2+,
Dy3+
(SMSED)
phosphors
show
promise
for
persistent
luminescence
applications
due
to
their
long
afterglow
and
robust
chemical
stability.
However,
a
trade-off
exists
between
achieving
precise
size
shape
control
of
SMSED
maintaining
prolonged
intensity
duration
during
synthesis.
Herein,
we
unveil
molten-salt
method
that
successfully
produces
uniform
single-crystalline
plate-like
the
first
time.
This
synthesis
significantly
reduces
both
sintering
temperature
time
compared
classic
solid-state
reaction
(SSR)
method.
Owing
nanoplates
structure,
distribution,
single-crystal
nature,
resulting
exhibited
excellent
performance
thermal
stability,
with
sustained
blue
exceeding
24
h
retaining
>70%
its
initial
up
523
K,
outperforming
most
reported
phosphors.
These
remarkable
properties
underscore
considerable
potential
in
fingerprint
detection.
work
unlocks
new
synthetic
frontier
controllable
phosphors,
paving
way
future
optimizations
aimed
at
development
advanced
luminescent
Language: Английский