Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 17, 2024
Abstract
Given
the
extensive
application
of
near‐infrared
(NIR)
emission,
quest
for
efficient
and
versatile
NIR
semiconductors
have
attracted
tremendous
attention.
Leveraging
trivalent
rare
earth
(RE
3+
)
ions
doping,
integration
metal
halide
perovskites
with
RE
makes
it
easy
to
achieve
NIR‐II
emission
(1000–1700
nm).
However,
although
showing
promise
in
bioimaging,
optical
communication,
night
vision,
enhancing
intensity
promote
further
progress
real‐world
applications
remains
a
challenge.
This
review
summarizes
recent
advancements
ion‐doped
perovskite
semiconductors,
discusses
what
kind
properties
are
needed
how
desired
various
applications.
The
starts
synthesis
methods
material
types
rich
examples.
Following
this,
mechanisms
strategies
optimizing
luminescence
performance
discussed
detail.
Furthermore,
highlights
their
multifunctional
both
as
an
electrically
driven
emitter
light‐emitting
diodes
(LEDs)
down‐conversion
photovoltaic
devices
(PVs)
or
phosphor‐converted
LEDs
(pc‐LEDs).
Finally,
insights
on
fill
gap
between
current
research
future
goals
provided.
aims
provide
deeper
understanding
materials,
exploration
emitters.
Research Square (Research Square),
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 21, 2024
Abstract
Lanthanides
are
widely
co-doped
in
persistent
luminescence
phosphors
to
elevate
defect
concentration
and
enhance
efficiency.
However,
the
deleterious
cross-relaxation
between
activators
lanthanides
inevitably
quench
luminescence,
particularly
heavily
doped
phosphors.
Herein,
we
reported
a
core-shell
engineering
strategy
minimize
unwanted
but
retain
charge-trapping
capacity
of
by
confining
core
shell,
respectively.
As
proof
concept,
prepared
series
codoped
ZnGa2O4:Cr,
Ln
(CD-Ln,
=
Nd,
Eu,
Gd,
Tb,
Dy,
Ho,
Er,
Tm,
Yb)
structured
ZnGa2O4:Cr@ZnGa2O4:Ln
(CS-Ln)
nanoparticles.
First-principle
investigations
suggested
that
lanthanide
doping
elevated
electron
trap
for
enhanceing
energy
transfer
(ET)
from
Cr3+
Ln3+
ions
quenched
luminescence.
The
spatial
separation
CS-Ln
nanoparticles
suppressed
ET
Ln3+.
Due
efficient
suppression
ET,
optimal
was
50
times
compared
CD-Ln.
Moreover,
intensity
CS-5%Ln
up
60
original
ZnGa2O4:Cr.
displayed
significantly
improved
signal-to-noise
ratios
bioimaging.
Further,
interfaced
with
lycopene-producing
bacteria
Rhodopseudomonas
Palustris
solar-to-chemical
synthesis
lycopene
productivity
increased
190%.
This
work
provides
reliable
solution
fulfill
potential
enhancing
opens
opportunities
biomedicine
synthesis.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 17, 2024
Abstract
Given
the
extensive
application
of
near‐infrared
(NIR)
emission,
quest
for
efficient
and
versatile
NIR
semiconductors
have
attracted
tremendous
attention.
Leveraging
trivalent
rare
earth
(RE
3+
)
ions
doping,
integration
metal
halide
perovskites
with
RE
makes
it
easy
to
achieve
NIR‐II
emission
(1000–1700
nm).
However,
although
showing
promise
in
bioimaging,
optical
communication,
night
vision,
enhancing
intensity
promote
further
progress
real‐world
applications
remains
a
challenge.
This
review
summarizes
recent
advancements
ion‐doped
perovskite
semiconductors,
discusses
what
kind
properties
are
needed
how
desired
various
applications.
The
starts
synthesis
methods
material
types
rich
examples.
Following
this,
mechanisms
strategies
optimizing
luminescence
performance
discussed
detail.
Furthermore,
highlights
their
multifunctional
both
as
an
electrically
driven
emitter
light‐emitting
diodes
(LEDs)
down‐conversion
photovoltaic
devices
(PVs)
or
phosphor‐converted
LEDs
(pc‐LEDs).
Finally,
insights
on
fill
gap
between
current
research
future
goals
provided.
aims
provide
deeper
understanding
materials,
exploration
emitters.
