Small,
Journal Year:
2025,
Volume and Issue:
21(11)
Published: Feb. 14, 2025
Abstract
Obtaining
efficient
perovskite
solar
modules
(PSMs)
with
enhanced
UV
stability
is
essential
for
their
practical
applications,
yet
remains
a
significant
challenge.
In
this
work,
highly
organic–inorganic
copper
halide
downshifting
film
that
significantly
enhances
the
of
PSMs
demonstrated
by
converting
high‐energy
harmful
photons
into
beneficial
visible
light
contribute
to
photovoltaic
performance.
The
tetrapropylammonium
(TPA)
cation
selected
as
main
framework
synthesize
series
halides,
denoted
Br
x
I
y
.
A
near‐unity
photoluminescence
quantum
yield
(PLQY)
99.51%
can
be
achieved
precisely
controlling
Br/I
ratio
2:4,
2
4
,
which
one
highest
values
reported
date.
dual
self‐trapped
excitons
(STEs)
luminescence
mechanism
systematically
investigated
both
temperature‐dependent
and
pressure‐dependent
experiments.
This
dual‐STEs
enables
efficiently
absorb
re‐emit
photons,
thereby
mitigating
photodegradation
induced
light.
Finally,
effective
layer.
an
optimal
efficiency
22.24%,
maintaining
over
90%
initial
after
exposure
total
dose
66.07
kWh
m
−2
Journal of Materials Chemistry C,
Journal Year:
2024,
Volume and Issue:
12(7), P. 2398 - 2409
Published: Jan. 1, 2024
Demonstration
of
how
rational
design
affects
self-trapped
emission
characteristics
and
scintillation
properties
in
mechanochemically
synthesised
caesium
copper
halide
perovskites.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(29)
Published: May 2, 2024
Ternary
copper
(Cu)
halides
are
promising
candidates
for
replacing
toxic
lead
in
the
field
of
perovskite
light-emitting
diodes
(LEDs)
toward
practical
applications.
However,
electroluminescent
performance
Cu
halide-based
LEDs
remains
a
great
challenge
due
to
presence
serious
nonradiative
recombination
and
inefficient
charge
transport
halide
emitters.
Here,
rational
design
host-guest
[dppb]
ACS Applied Materials & Interfaces,
Journal Year:
2024,
Volume and Issue:
16(31), P. 41165 - 41175
Published: July 25, 2024
Commercially
available
rare-earth-doped
inorganic
oxide
materials
have
been
widely
applied
as
X-ray
scintillators,
but
the
fragile
characteristics,
high
detection
limit,
and
harsh
preparation
condition
seriously
restrict
their
wide
applications.
Furthermore,
it
remains
a
huge
challenge
to
realize
flexible
imaging
technology
for
real-time
monitoring
of
curving
interface
complex
devices.
To
address
these
issues,
we
herein
report
two
isostructural
cuprous
halides
zero-dimensional
(0D)
[AEPipz]CuX3·X·H2O
(AEPipz
=
N-aminoethylpiperazine,
X
Br
I)
with
controllable
size
nanosize
crystal
highly
efficient
scintillators
toward
imaging.
These
exhibit
cyan
photoluminescence
radioluminescence
emissions
highest
quantum
yield
92.1%
light
62,400
photons
MeV–1,
respectively,
surpassing
most
commercially
scintillators.
Meanwhile,
ultralow
limit
95.7
nGyair
s–1
was
far
below
dose
required
diagnosis
(5.5
μGyair
s–1).
More
significantly,
film
is
facilely
assembled
excellent
foldability
crack
resistance,
which
further
acts
scintillation
screen
achieving
spatial
resolution
17.4
lp
mm–1
in
imaging,
demonstrating
potential
application
wearable
radiation
radiography.
The
combined
advantages
yield,
low
flexibility
promote
0D
promising
Abstract
Organic‐inorganic
hybrid
cuprous
halides
(OHCHs)
are
intriguing
candidates
for
the
next
generation
of
scintillators
due
to
their
environmental
friendliness,
simple
preparation,
and
excellent
luminescent
properties.
Herein,
a
series
efficient
OHCHs
based
on
inorganic
building
blocks
[Cu
4
Br
6
]
2−
clusters,
designated
as
(TMAA)
2
Cu
,
(EtTPPh)
(MtTBA)
(TMAA
=
N,N,N
‐trimethyltrimethyl‐1‐adamantylammonium;
EtTPPh
ethyltriphenylphosphonium;
MtTBA
methyltri‐n‐butylammonium),
synthesized
via
solution
method.
The
three
exhibit
broadband
yellow
emissions.
Remarkably,
0D
shows
near‐unity
photoluminescence
quantum
yield,
which
can
be
attributed
highly
localized
excitons
rigid
environment.
Impressively,
it
is
demonstrated
show
scintillation
performance
with
high
light
yield
46700
photon
MeV
−1
low
detection
limit
56.12
nGy
air
s
.
Photophysical
studies
reveal
that
bright
emission
in
originates
from
self‐trapped
excitons.
This
work
opens
an
inspirational
avenue
structure
design
high‐performance
X‐ray
scintillators.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: June 8, 2024
Abstract
Copper‐based
halide
perovskite,
as
an
ideal
alternative
to
lead‐based
has
attracted
much
attention
in
many
applications
owing
its
earth‐abundant
element,
non‐toxicity,
and
excellent
optical
properties.
In
this
report,
magnetic
Mn‐incorporated
lead‐free
copper
perovskite
(Cs
3
Cu
2
Br
5
)
nanocrystal
(NC)
is
for
the
first
time
designed
prepared
using
a
one‐pot
hot‐injection
route,
resulting
new
emission
band
at
≈540
nm
accompanied
with
self‐trapped
exciton
(STE)
centered
≈445
from
Cs
NC.
situ
X‐ray
photoelectron
spectroscopy
kelvin
probe
force
microscopy
(KPFM)
confirm
that
Mn
2+
incorporation
causes
efficient
electron–hole
separation
extended
charge
lifetime
Mn‐doped
NC,
which
exhibits
significantly
raised
selectively
photocatalytic
biomass
conversion
coupled
obviously
enhanced
H
O
evolution.
With
external
field,
spin‐polarized
electrons
NC
arouses
reduced
recombination
more
available
electrons/holes
surface
redox
reaction,
further
raising
performance.
This
confirmed
by
steady‐state/transient‐state
photoluminescence
(PL)
spectroscopy,
transient
photocurrent
measurement,
electrochemical
impedance
field.
electron
paramagnetic
resonance
(EPR)
spectra
reveal
radical‐involved
reaction
pathway
conversion.
research
great
potential
of
spin‐polarization‐enhanced
photocatalysis
field
without
additional
energy
consumption.
Inorganic Chemistry,
Journal Year:
2024,
Volume and Issue:
63(4), P. 2174 - 2184
Published: Jan. 18, 2024
Recently,
all-inorganic
copper(I)
metal
halides
have
emerged
as
promising
optical
materials
due
to
their
high
light
emission
efficiencies.
This
work
details
the
crystal
structure
of
two
hybrid
organic-inorganic
[(CH
Abstract
0D
organic‐inorganic
Cu(I)‐based
halides
have
gained
significant
attention
due
to
their
low
toxicity,
structural
adjustability,
and
moderate
fabrication
conditions.
However,
it
is
still
challenging
explore
stable
efficient
hybrid
that
phase
transition
tunable
spectra
for
multifunctional
photoelectric
applications.
Herein,
two
copper
halides,
green‐emissive
(MTPP)
2
CuI
3
yellow‐emissive
Cu
4
I
6
(MTPP
=
Methyltriphenylphosphonium),
are
successfully
synthesized
using
a
slow
cooling
method.
Both
compounds
exhibit
high
photoluminescence
quantum
yield
(PLQY)
of
81.95
99.7%,
remarkable
steady‐state
light
38
750
63
700
photons
per
MeV,
respectively.
The
scintillation
screen
the
based
on
vacuum‐filtration
enables
X‐ray
imaging
resolution
17.83
18.49
lp
mm
−1
,
showing
great
potential
in
practical
Moreover,
reversible
fast
transformation
between
them
occurs
when
stimulated
by
ethanol
or
MTPP
solutions,
without
requiring
additional
thermal
treatment,
which
endows
with
level
anti‐counterfeiting
under
room
temperature
(RT).
It
worth
noting
they
display
resistance
water,
maintaining
its
purity
even
after
being
immersed
water
30
days.
This
study
introduces
new
approach
investigate
Cu‐based
excellent
performance,
stability,
tunability
multiple
