Tailoring of Visible‐NIR‐II Luminescence in Pt4+/Er3+‐Codoped Cs2ZrCl6 Double Perovskite Phosphors via Energy Transfer Engineering for Diversified Applications
Laser & Photonics Review,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 22, 2025
Abstract
To
settle
the
unsatisfied
efficiency
of
near‐infrared
(NIR)
emission
in
lanthanide‐doped
luminescent
materials,
a
series
Pt
4+
‐doped
and
/Er
3+
‐codoped
Cs
2
ZrCl
6
double
perovskite
phosphors
are
designed.
Excited
by
254
nm,
compounds
can
exhibit
characteristic
emissions
host
,
resulting
polychromatic
luminescence
caused
efficient
energy
transfer
from
to
.
Through
combining
theoretical
calculation
profiles,
it
is
clear
that
broadband
at
660
nm
assigned
self‐trapped
exciton
[PtCl
]
2−
octahedron.
Furthermore,
compared
with
Er
sample,
intensity
NIR‐II
1540
greatly
improved,
namely,
127‐fold
increase,
due
quantum
efficiencies
visible
:0.6%Pt
/25%Er
phosphor
75.5%
34%,
respectively,
excited
nm.
Additionally,
via
utilizing
designed
phosphors,
various
applications
including
multilevel
anti‐counterfeiting,
non‐visual
imaging,
night
vision,
etc.,
realized.
This
finding
implies
be
efficiently
regulated
using
multi‐channel
composite
engineering.
Язык: Английский
Chemical Composition Regulation for Tuning the Luminescent Properties of Organic–Inorganic Metal Halides
ChemPhotoChem,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 4, 2025
Organic–inorganic
metal
halides
(OIMHs)
exhibiting
superior
optoelectronic
properties
have
shown
broad
applications
in
sensing,
photovoltaic
devices,
information
storage,
and
biological
imaging.
Compared
with
pure
inorganic
or
organic
materials,
OIMHs
are
distinguished
by
their
hybrid
feature,
processability
of
components
robustness
units,
as
well
plentiful
luminescent
sources
derived
from
ligands,
self‐trapped
excitons
(STEs)
lattices,
the
energy
transfer
between
species.
Thereinto,
chemical
composition
tunability
component,
ions,
halogen
provides
multiple
adjustable
sites
to
tailor
structures
physicochemical
properties.
However,
how
realizing
effective
tunable
luminescence
for
desired
through
rational
regulation
has
become
a
challenge.
In
this
review,
starting
structurally
OIMHs,
feasible
methods
regulating
summarized,
which
include
change
components,
dimensionality
configurations
species,
heterometal
systematic
multisite
fine‐tuning
based
on
specific
matrix.
Finally,
challenges
synthesize
promising
performance
discussed.
Язык: Английский