Journal of Materials Chemistry C,
Journal Year:
2024,
Volume and Issue:
12(19), P. 7041 - 7052
Published: Jan. 1, 2024
Presenting
a
novel
insight
into
Mn
2+
luminescence
processes
in
the
ZnS
nanophosphor
and
revealing
its
unique
high-pressure
decay
behaviour
self-powered
mechanoluminescence.
Abstract
Fe
3+
is
a
promising
dopant
for
designing
near‐infrared
(NIR)
phosphors
due
to
its
broadband
emitting,
non‐toxic,
and
inexpensive
properties.
However,
the
4
E
(
D)
+
A
1
G)
levels
of
ions
are
independent
crystal‐field
parameter,
spectral
regulation
has
become
huge
challenge.
Herein,
NIR‐emitting
phosphor
Ca
2.5
Hf
(Ga,
Al)
3
O
12
:
successfully
developed
toward
long‐wave
ultraviolet
(LWUV)
light‐pumped
NIR
phosphor‐converted
LED
(pc‐LED).
Significantly,
excited
transition
reverse
Ga
can
be
realized
by
simply
adjusting
concentration,
which
results
in
largely
enhanced
excitation
around
410
nm
matches
well
with
commercial
LWUV
LED.
Moreover,
exhibit
emission
centered
at
770
optimized
doping
content
0.01
mol%,
demonstrated
ascribe
occupying
both
octahedral
4+
tetrahedral
sites.
Further,
simple
cation
modulation
strategy
proposed
break
lattice
symmetry
enhance
NIR‐emission
intensity
200%
as
much
before.
Finally,
pc‐LED
fabricated
employing
,
Al
coating
on
chip,
shows
great
potential
non‐destructive
inspection
applications.
Advanced Optical Materials,
Journal Year:
2024,
Volume and Issue:
12(17)
Published: March 2, 2024
Abstract
The
near‐infrared
(NIR)
persistent
luminescence
(PersL)
materials
have
attracted
widespread
attention
owing
to
the
unique
self‐sustained
light
with
good
penetrability.
Currently,
most
of
reported
NIR
PersL
are
activated
by
Cr
3+
.
Considering
potential
toxicity
chromium
ions,
there
is
an
urgent
requirement
explore
‐free
phosphors.
Herein,
a
novel
phosphor
Sr
2
LuSbO
6
:Fe
(SLSO:Fe
)
prepared
and
its
properties
systematically
studied.
Fe
‐activated
exhibits
long‐wavelength
emission
band
centered
at
890
nm
110
full‐width
half
maximum
(FWHM),
can
last
over
18
h.
shows
excellent
stability
even
after
being
dispersed
in
solutions
different
environments
for
7
days.
Furthermore,
emitted
penetrate
cm
thickness
beef,
evidencing
penetration
property.
This
work
provides
based
on
technological
applications
also
contributes
accelerate
development
new‐generation
‐doped
toward
versatile
applications.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(50)
Published: Nov. 6, 2024
Mechanoluminescence
(ML)
materials,
known
for
their
ability
to
convert
mechanical
energy
into
light,
are
increasingly
recognized
potential
applications,
such
as
in
intelligent
stress
sensing,
vivo
bioimaging,
and
non-destructive
monitoring.
However,
the
low
signal-to-noise
ratio
(SNR)
narrow-band
emission
of
single-defect-induced
ML
materials
usually
limit
biological-related
practical
applications.
Here,
these
limitations
will
be
addressed
by
modulating
microstructure
evolution
Y
Advanced Powder Materials,
Journal Year:
2023,
Volume and Issue:
3(2), P. 100165 - 100165
Published: Nov. 8, 2023
Mechanoluminescent
(ML)
materials,
which
have
the
ability
to
convert
mechanical
energy
optical
energy,
found
huge
promising
applications
such
as
in
stress
imaging
and
anti-counterfeiting.
However,
main
reported
ML
phosphors
are
based
on
trap-related
ones,
thus
hindering
practical
due
requirement
of
complex
light
pre-irradiation
process.
Here,
a
self-recoverable
near
infrared
(NIR)
material
LaAl1-xO3:
xCr3+
(x
=
0.2
%,
0.4
0.6
0.8
1.0
%
1.2
%)
has
been
developed.
Based
preheating
method
corresponding
performance
analysis,
influences
residual
carriers
eliminated
detailed
dynamic
luminescence
process
analysis
is
realized.
Systematic
experiments
conducted
reveal
origin
emissions,
demonstrating
that
dictated
more
by
non-centrosymmetric
piezoelectric
crystal
characteristic.
In
general,
this
work
provided
significant
references
for
exploring
efficient
NIR
may
provide
potential
anti-counterfeiting
bio-stress
sensing.
Small,
Journal Year:
2024,
Volume and Issue:
20(45)
Published: Aug. 10, 2024
Mechanoluminescence
(ML)
phosphors
have
found
various
promising
utilizations
such
as
in
non-destructive
stress
sensing,
anti-counterfeiting,
and
bio
imaging.
However,
the
reported
NIR
MLs
predominantly
been
limited
to
bulky
particle
size
weak
ML
intensity,
hindering
further
practical
applications.
For
this
regard,
a
nano-sized
ZnGa
Dalton Transactions,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
This
review
covers
NIR
luminescent
materials
doped
with
RE,
TM,
and
main-group
ions,
focusing
on
their
optical
properties,
mechanisms,
applications
in
bioimaging,
LEDs,
sensors,
strategies
to
improve
efficiency
thermal
stability.