Inorganic Chemistry,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 6, 2024
The
development
of
high-sensitivity
thermometers
has
become
increasingly
important
in
recent
years
as
the
demand
for
noncontact
optical
temperature
measurement
grown.
Herein,
we
report
a
series
Sr
ACS Materials Letters,
Год журнала:
2024,
Номер
6(4), С. 1327 - 1337
Опубликована: Март 7, 2024
Luminescent
nanothermometers
with
high
spatial
and
thermal
resolution
are
desirable
for
a
wide
range
of
temperature-sensing
applications.
Lanthanide-doped
nanoparticles
can
be
excited
by
emit
light
in
the
near-infrared
(NIR)
region,
rendering
them
ideal
candidates
NIR
nanothermometry.
Pr3+
has
demonstrated
sensing
ability
region
but
only
when
UV–visible
light.
Here,
we
propose
series
NIR-I
Pr3+,
Ho3+,
Yb3+-doped
NaGdF4
core/multishell
double-
single-band
ratiometric
nanothermometry
operating
NIR-II
region.
Thermal
was
organic
aqueous
dispersions
as
well
powders.
The
Sr
based
on
1G4
→
3H5
Ho3+
5I6
5I8
radiative
transitions
reached
2.4%
°C–1
at
40
°C,
while
maximal
obtained
using
emission
0.8%
10
°C.
These
findings
demonstrate
promise
Pr3+-doped
NIR-NIR