Inorganic Chemistry,
Journal Year:
2024,
Volume and Issue:
64(1), P. 404 - 411
Published: Dec. 30, 2024
Organic–inorganic
hybrid
perovskites
(OIHPs)
have
attracted
enormous
attention
owing
to
their
intriguing
structural
tunability
and
diverse
functional
properties.
Reconstructive
phase
transitions,
involving
the
breaking
reconstruction
of
chemical
bonds,
rarely
been
found
in
such
materials;
however,
these
features
may
induce
many
physical
properties
optics,
ferroelectrics,
ferromagnetics,
so
forth.
Here,
we
utilized
weak
switchable
coordination
bonds
HETMA-MnCl3
(HETMA
=
(2-hydroxyethyl)
trimethylammonium)
construct
a
1D
perovskite
employing
neutral
framework.
As
expected,
this
compound
undergoes
reconstructive
transition
with
high
temperature
421
K.
shows
remarkable
red
fluorescence,
wide
emission
spectrum,
long
luminous
lifetime.
Impressively,
dominates
excellent
PL
coexistence
negative
thermal
quenching
behavior.
To
best
our
knowledge,
phenomenon
has
realm
multifunctional
optoelectronic
materials.
This
work
provides
possibilities
explore
new
classes
materials
transitions
contributes
further
developments.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Aug. 5, 2024
Organic-inorganic
hybrid
manganese(II)
halides
(OIMnHs)
have
garnered
tremendous
interest
across
a
wide
array
of
research
fields
owing
to
their
outstanding
optical
properties,
abundant
structural
diversity,
low-cost
solution
processibility,
and
low
toxicity,
which
make
them
extremely
suitable
for
use
as
new
class
luminescent
materials
various
optoelectronic
applications.
Over
the
past
years,
plethora
OIMnHs
with
different
dimensionalities
multifunctionalities
such
efficient
photoluminescence
(PL),
radioluminescence,
circularly
polarized
luminescence,
mechanoluminescence
been
newly
created
by
judicious
screening
organic
cations
inorganic
Mn(II)
polyhedra.
Specifically,
through
precise
molecular
engineering,
series
near-unity
PL
quantum
yields,
high
anti-thermal
quenching
excellent
stability
in
harsh
conditions
devised
explored
applications
light-emitting
diodes
(LEDs),
X-ray
scintillators,
multimodal
anti-counterfeiting,
fluorescent
sensing.
In
this
review,
latest
advancements
development
are
summarized,
covers
from
fundamental
physicochemical
properties
advanced
applications,
an
emphasis
on
functionality
design
especially
LEDs
detection
imaging.
Current
challenges
future
efforts
unlock
potentials
these
promising
also
envisioned.
Chemical Communications,
Journal Year:
2024,
Volume and Issue:
60(88), P. 12924 - 12927
Published: Jan. 1, 2024
A
core–shell
model
of
polymetallic
low-dimensional
hybrid
metal
halides
is
proposed.
This
can
explain
the
photoemission
properties
[(C
6
H
18
N
3
)
2
·Pb
Br
10
]
(C
=
2-(piperazin-1-yl)ethan-1-aminium)
coated
with
a
manganese
bromide
layer.
Inorganic Chemistry Frontiers,
Journal Year:
2024,
Volume and Issue:
11(19), P. 6418 - 6424
Published: Jan. 1, 2024
Starting
from
the
pivotal
structure–performance
relationship,
three
compounds
are
synthesized
through
halogen
regulation,
and
photoluminescence
is
dependent
on
structure.
Abstract
Zero‐dimensional
(0D)
metal
halides
are
attractive
due
to
their
structure‐dependent
and
tunable
photoluminescence
properties.
Herein,
a
new
0D
organic–inorganic
hybrid
Zn‐based
halide,
(C
4
H
12
N
2
)ZnBr
,
featuring
long‐term
stable
crystal
structure
moisture‐stable
PL
emission
under
various
extreme
conditions
is
reported.
A
strong
electron–phonon
coupling
effect
enables
the
halide
display
highly
efficient
blue
light
at
472
nm
with
large
Stokes
shift
of
7385
cm
−1
.
Intriguingly,
heterovalent
substitution
Cu
+
‐Zn
2+
further
enhances
quantum
efficiency
60%
as
introduction
effectively
suppresses
nonradiative
recombination
process.
Besides,
formation
twisted
[SbBr
]
−
tetrahedra
via
Sb
3+
help
achieve
broadband
near‐infrared
(NIR)
(760
nm)
full
width
half
maxima
(FWHM)
203
nm,
enabling
potential
applications
in
night‐vision
nondestructive
fruit
damage
inspection.
Detailed
structural
optical
analyses
used
investigate
photophysical
processes
different
self‐trapped
exciton
(STE)
for
pristine
/Sb
‐doped
halides.
These
findings
advance
understanding
spectral
regulation
mechanism
initiate
more
exploitation
luminescent
emerging
applications.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
unknown
Published: July 16, 2024
The
engineering
of
tunable
photoluminescence
(PL)
in
single
materials
with
a
full-spectrum
emission
represents
highly
coveted
objective
but
poses
formidable
challenge.
In
this
context,
the
realization
near-full-spectrum
PL
emission,
spanning
visible
light
range
from
424
to
620
nm,
single-component
two-dimensional
(2D)
hybrid
lead
halide
perovskite,
(ETA)
Angewandte Chemie,
Journal Year:
2024,
Volume and Issue:
136(43)
Published: July 16, 2024
Abstract
The
engineering
of
tunable
photoluminescence
(PL)
in
single
materials
with
a
full‐spectrum
emission
represents
highly
coveted
objective
but
poses
formidable
challenge.
In
this
context,
the
realization
near‐full‐spectrum
PL
emission,
spanning
visible
light
range
from
424
to
620
nm,
single‐component
two‐dimensional
(2D)
hybrid
lead
halide
perovskite,
(ETA)
2
PbBr
4
(ETA
+
=(HO)(CH
)
NH
3
),
is
reported,
achieved
through
high‐pressure
treatment.
A
pressure‐induced
phase
transition
occurs
upon
compression,
transforming
crystal
structure
an
orthorhombic
under
ambient
conditions
monoclinic
at
high
pressure.
This
driven
by
adaptive
and
dynamic
configuration
changes
organic
amine
cations
enables
effective
continuous
narrowing
band
gap
crystal.
hydrogen
bonding
interactions
between
inorganic
layers
(N−H⋅⋅⋅Br
O−H⋅⋅⋅Br
bonds)
efficiently
modulate
penetration
octahedral
distortion.
Consequently,
phenomenon
induces
results
red‐shifted
emissions,
leading
emission.
work
opens
possibility
for
achieving
wide
emissions
coverage
across
spectrum
employing
pressure
perovskites.
Advanced Optical Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 29, 2024
Abstract
Understanding
the
luminescence
mechanics
of
metal
halide
perovskites
is
key
to
uncovering
detailed
pathways
responsible
for
remarkable
photophysical
properties
and
engineering
materials
with
enhanced
optoelectronic
properties.
In
this
work,
high
pressure
employed
reveal
self‐trapped
exciton
(STE)
emission
features
a
1D
lead
bromide
perovskitoid
(HM)Pb
2
Br
6
.
Upon
compression,
42‐fold
enhancement
in
intensity
compared
initial
emission,
along
transfer
from
STE
narrow
free
achieved
These
phenomena
are
related
anisotropic
compression
,
which
results
structural
stiffness
significant
reduction
distances
Pb─Pb
bond
lengths
between
inter‐[Pb
]
2−
chains,
as
well
Pb─Br
within
three
basic
intra‐[Pb
octahedra.
provide
essential
insights
into
intriguing
photophysics
STEs
shed
new
light
on
dramatic
control
enhance
optical
perovskites.
