Materials Research Express,
Journal Year:
2024,
Volume and Issue:
11(9), P. 092001 - 092001
Published: Sept. 1, 2024
Abstract
Rare
earth
light
conversion
agent
material
is
a
fluorescent
that
can
convert
solar
energy
into
of
different
wavelengths
for
various
applications.
In
this
paper,
the
research
progress
organic
rare
complexes
and
inorganic
materials
first
reviewed.
Then,
luminescence
principles,
classification,
synthesis
methods,
characterization
performance
methods
rare-earth
are
reviewed,
as
well
their
recent
in
agricultural
film
Finally,
challenges
development
prospects
faced
by
summarized.
ACS Applied Nano Materials,
Journal Year:
2025,
Volume and Issue:
8(5), P. 2393 - 2401
Published: Jan. 29, 2025
The
increasingly
sophisticated
counterfeiting
technology
has
led
to
a
significant
increase
in
the
demand
for
more
advanced
anticounterfeiting
materials,
and
multimode
luminescent
materials
are
promising
candidate
anticounterfeiting.
In
this
research,
dual-mode
nanocomposite,
SiQDs-Ln,
was
designed
prepared
by
grafting
lanthanide
ions
(Eu3+/Tb3+)
onto
surface
of
trimellitic
anhydride-functionalized
blue-emitting
silicon
quantum
dots
(SiQDs).
This
preparation
strategy
can
effectively
prevent
aggregation
SiQDs
endow
nanocomposite
with
optical
response
properties.
It
emitted
visible
light
different
colors
at
excitation
wavelength
common
dual-wavelength
ultraviolet
lamps
(254
or
365
nm).
incorporation
SiQDs-Ln
into
commercial
white
industrial
ink
facilitated
ink,
which
applied
coded
patterns,
ASCII
encryption,
screen-printed
designs,
QR
codes.
Furthermore,
fingerprint
images
coated
powder
demonstrated
that
three
levels
detail
could
be
clearly
recognized
naked
eye.
Compared
traditional
single-mode
luminescence
greatly
enhanced
level
information
security
as
well
accuracy
reliability
recognition.
study
indicates
conveniently
used
practical
applications
aid
hand-held
UV
great
potential
anticounterfeiting,
Inorganic Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 14, 2025
Isostructured
lanthanide-Brønsted
acidic
ionic
liquid
coordination
polymers,
{[Ln(C7H7N2O4)(H2O)4]Cl2}n
(LnIMDC(H2O)4,
Ln
=
Eu3+,
Gd3+,
or
Tb3+,
C7H7N2O4
[IMDC]−)
and
{[Eu0.5Tb0.5(C7H7N2O4)(H2O)4]Cl2}n
(Eu0.5Tb0.5IMDC(H2O)4)),
have
been
synthesized
using
1,3-bis(carboxymethyl)
imidazolium
chloride
([H2IMDC]Cl)
as
linkers.
LnIMDC(H2O)4
(Ln
Eu3+
Tb3+)
Eu0.5Tb0.5IMDC(H2O)4
exhibit
good
temperature
sensing
performance
over
a
wide
range
with
maximum
sensitivities
Sr
of
2.73%·K–1
(392
K)
2.74%·K–1
(362
K),
2.21%
K–1
(383
respectively.
Meanwhile,
the
white
light
emission
was
achieved
Commission
Internationale
de
l'Eclairage
coordinates
(0.323,
0.328),
correlated
color
5942
K,
rendering
index
(CRI)
90.
Moreover,
response
as-synthesized
Eu0.5Tb0.5IMDC(H2O)4@PDMS
film
monitored.
The
energy
transfer
efficiency
phosphorescence
lifetime
in
abovementioned
polymers
were
investigated
to
explore
between
[IMDC]−
Ln3+
well
Tb3+
Eu3+.
Inorganic Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 9, 2025
Borate
materials
possess
diverse
crystal
structures
and
exhibit
outstanding
physical
properties,
making
them
highly
suitable
for
optical
applications.
In
this
work,
two
new
compounds,
α-BaGdBO3F2
β-BaGdBO3F2,
were
synthesized
by
the
high-temperature
solid
solution
method
a
temperature-controlled
phase
transition
from
to
β-BaGdBO3F2
was
observed.
of
[BO3]
basic
building
unit
[GdO6F2]
polyhedra
are
interconnected
form
complex
three-dimensional
network.
The
title
compounds
good
thermal
stability,
short
ultraviolet
cutoff
274
nm,
moderately
large
birefringence
(0.072
0.059@
546
nm).
DFT
calculations
also
reveal
that
could
be
potential
nonlinear
(NLO)
material.
results
indicate
promising
candidates
UV
birefringent
NLO
materials.
