Matter and Radiation at Extremes,
Journal Year:
2025,
Volume and Issue:
10(3)
Published: April 28, 2025
High-pressure
research
has
emerged
as
a
pivotal
approach
for
advancing
our
understanding
and
development
of
optoelectronic
materials,
which
are
vital
wide
range
applications,
including
photovoltaics,
light-emitting
devices,
photodetectors.
This
review
highlights
various
in
situ
characterization
methods
employed
high-pressure
to
investigate
the
optical,
electronic,
structural
properties
materials.
We
explore
advances
that
have
been
made
techniques
such
X-ray
diffraction,
absorption
spectroscopy,
nonlinear
optics,
photoluminescence
Raman
photoresponse
measurement,
emphasizing
how
these
enhanced
elucidation
transitions,
bandgap
modulation,
performance
optimization,
carrier
dynamics
engineering.
These
insights
underscore
role
optimizing
tailoring
materials
future
applications.
The Journal of Physical Chemistry Letters,
Journal Year:
2025,
Volume and Issue:
unknown, P. 4262 - 4269
Published: April 22, 2025
van
der
Waals
crystal
NbOCl2
has
attracted
considerable
interest
owing
to
its
spontaneous
parametric
downconversion
properties,
but
challenges
remain
due
degradation
and
reduced
optical
nonlinearity
under
ambient
conditions.
Here,
we
show
that
high-temperature
vacuum
annealing
can
recover
even
enhance
second
harmonic
generation
(SHG)
in
degraded
via
recrystallization.
During
degradation,
the
second-order
decreases,
accompanied
by
changes
structure
of
NbOCl2.
However,
after
annealing,
SHG
is
recovered
improved
as
a
result
recrystallization
nanosheets.
This
strategy
enables
realization
tunable
nonlinear
responses,
including
absorption.
By
combining
linear
absorption
spectroscopy,
transient
absorption,
transmission
electron
microscopy,
occurs
specific
temperatures,
leading
bandgap
modulation
altered
electronic
relaxation.
study
offers
new
approach
achieving
reversible
for
device
applications.
Advanced Optical Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 27, 2025
Abstract
The
introduction
of
chiral
molecules
can
impart
chirality
to
low‐dimensional
perovskite,
thereby
enhancing
its
potential
in
sensing
and
information
storage
applications.
Nevertheless,
the
limited
photoluminescence
efficiency
greatly
restricts
broader
utility.
Here,
a
very
bright
white
light
is
achieved
from
pressure‐induced
emission
(PIE)
1D
OIHPs
S‐C
6
H
5
CH(CH
3
)NH
PbBr
(S‐MPAPbBr
)
crystal,
which
exhibited
24.6‐fold
increase
intensity.
circular
dichroism
(CD)
spectrum
simultaneous
inversion
enhancement,
establishing
it
as
multifunctional
material
PIE
luminogens
(PIEgens).
Furthermore,
upon
releasing
pressure
ambient
conditions,
be
stabilized
with
Commission
Internationale
de
l’Éclair‐age
(CIE)
chromaticity
coordinates
(0.30,
0.29)
correlated
color
temperature
(CCT)
7998
K.
In
situ
high‐pressure
experiments
first‐principles
calculations
indicated
that
irreversible
structural
amorphization
associated
steric
hindrance
effect
responsible
for
retention
cold‐white
light.
conformation
transition
S‐MPA
+
cations
induced
twisting
[PbBr
]
−
∞
chains,
thus
improving
PL
modulating
CD
signal.
research
elucidates
fundamental
structure‐property
relationship
offers
application
solid‐state
lighting
single‐component
well
regulation.
Advanced Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 7, 2025
Abstract
Multimodal
sensory
integration
is
vital
for
the
evolution
of
artificial
intelligence,
yet
current
approaches
often
rely
on
physically
connecting
distinct
sensing
units
(such
as
visual
and
tactile
devices)
through
external
circuits,
leading
to
data
transmission
delays
information
loss.
Here,
a
groundbreaking
paradigm
demonstrated
integrating
visual‐tactile
fusion
perception
in
one
device
with
single
functional
material.
This
achieved
by
developing
an
unprecedented
2D
Piezo‐Ferro‐Opto‐Electronic
(PFOE)
Artificial
Synapse,
which
combines
comprehensive
ferroelectricity
(for
synaptic
behaviors),
piezoelectricity
modulation),
optoelectronic
responsiveness
detection)
strained
NbOI
2
.
Under
synergistic
influence
light
strain,
exhibits
remarkable
persistent
photoconductivity
(PPC),
notable
increase
paired‐pulse
facilitation
(PPF)
index
(from
116%
180%),
reduction
power
exponent
sublinear
power‐law
fitting
photocurrent
curve
0.797
0.376).
These
features
enhance
clarity
recognition
fingerprint
images
that
integrate
information.
The
work
provides
robust
foundation
multisensory
capabilities
into
advanced
human‐machine
interfaces
intelligence
systems,
marking
significant
leap
forward
development
multifunctional
neuromorphic
devices.
Matter and Radiation at Extremes,
Journal Year:
2025,
Volume and Issue:
10(3)
Published: April 28, 2025
High-pressure
research
has
emerged
as
a
pivotal
approach
for
advancing
our
understanding
and
development
of
optoelectronic
materials,
which
are
vital
wide
range
applications,
including
photovoltaics,
light-emitting
devices,
photodetectors.
This
review
highlights
various
in
situ
characterization
methods
employed
high-pressure
to
investigate
the
optical,
electronic,
structural
properties
materials.
We
explore
advances
that
have
been
made
techniques
such
X-ray
diffraction,
absorption
spectroscopy,
nonlinear
optics,
photoluminescence
Raman
photoresponse
measurement,
emphasizing
how
these
enhanced
elucidation
transitions,
bandgap
modulation,
performance
optimization,
carrier
dynamics
engineering.
These
insights
underscore
role
optimizing
tailoring
materials
future
applications.
