Nanomaterials,
Год журнала:
2024,
Номер
14(23), С. 1920 - 1920
Опубликована: Ноя. 28, 2024
Though
much
progress
has
been
achieved
in
the
discovery
of
new
molecular
ferroelectrics
recent
years,
practical
applications
and
related
physics
are
still
rarely
explored
due
to
difficulty
high-quality
film
production
patterning
issues.
Single-crystalline
films
patterns
high
demand
for
device
performance.
Through
a
template-assisted
space-confined
strategy,
herein,
ordered
single-crystalline
nanowire
optoelectronic
devices
semiconducting
ferroelectric
(SMF),
hexane-1,6-diammonium
pentaiodobismuth
(HDA-BiI
Inorganic Chemistry Frontiers,
Год журнала:
2023,
Номер
11(3), С. 845 - 852
Опубликована: Дек. 11, 2023
H/F
substitution
has
been
successfully
applied
to
achieve
structural
dimension
tailoring
at
the
molecular
level
coupled
with
tunable
dielectric
and
optical
properties
in
organic
lead-bromide
hybrids.
Abstract
Polarization
photodetection
taking
advantage
of
the
anisotropy
2D
materials
shines
brilliantly
in
optoelectronic
fields
owing
to
differentiating
optical
information.
However,
previously
reported
polarization
detections
are
mostly
dependent
on
external
power
sources,
which
is
not
conducive
device
integration
and
energy
conservation.
Herein,
a
polar
perovskite
(CBA)
2
CsPb
Br
7
(
CCPB
,
CBA
=
4‐chlorobenzyllamine)
has
been
successfully
synthesized,
shows
anticipated
bulk
photovoltaic
effect
(BPVE)
with
an
open‐circuited
photovoltage
up
≈0.2
V.
Devices
based
monomorph
fulfill
fascinating
self‐powered
polarized
large
ratio
2.7
at
room
temperature.
Moreover,
features
high
phase‐transition
temperature
(≈475
K)
prompts
such
window
operation,
since
BPVE
generated
by
spontaneous
can
only
exist
structure
prior
phase
transition.
Further
computational
investigation
reveals
introduction
+
dipole
moment
contributes
quite
(17.5
µC
cm
−2
)
further
super
transition
.
This
study
will
promote
application
for
high‐temperature
conditions.
Angewandte Chemie International Edition,
Год журнала:
2024,
Номер
64(1)
Опубликована: Авг. 20, 2024
Perovskite-inspired
zero-dimensional
(0D)
hybrid
halides
exhibit
impressive
light
emission
properties;
however,
their
potential
in
photovoltaics
is
hindered
by
the
absence
of
interconnection
between
inorganic
polyhedra,
leading
to
acute
radiative
recombination
and
insufficient
charge
separation.
We
demonstrate
that
incorporating
closely-spaced
dissimilar
polyhedral
units
with
minimal
structural
distortion
leads
a
remarkable
enhancement
visible-light
photodetection
capability.
designed
0D
C
Angewandte Chemie,
Год журнала:
2024,
Номер
137(1)
Опубликована: Авг. 20, 2024
Abstract
Perovskite‐inspired
zero‐dimensional
(0D)
hybrid
halides
exhibit
impressive
light
emission
properties;
however,
their
potential
in
photovoltaics
is
hindered
by
the
absence
of
interconnection
between
inorganic
polyhedra,
leading
to
acute
radiative
recombination
and
insufficient
charge
separation.
We
demonstrate
that
incorporating
closely‐spaced
dissimilar
polyhedral
units
with
minimal
structural
distortion
leads
a
remarkable
enhancement
visible‐light
photodetection
capability.
designed
0D
C
24
H
72
N
8
In
2
Br
14
(HIB)
tetragonal
crystal
system,
replacing
Cs
+
InBr
5
.H
O
(CIB)
1,6‐hexanediammonium
(HDA)
cation.
HIB
comprises
[InBr
6
]
3−
octahedra,
4
−
tetrahedra
spaced
3.9
Å
apart
HDA
linker.
The
unit
additionally
linked
via
intercalated
bromine
through
hydrogen
halogen
bonding
interactions,
respectively.
This
arrangement
lowers
dielectric
confinement,
thereby
enhancing
carrier
density
mobility,
increasing
diffusion
coefficient
compared
CIB.
With
3.6
%
vacancy
within
block,
mid‐gap
states
are
created,
reducing
direct
band
gap
2.19
eV.
demonstrates
an
unprecedently
high
responsivity
9975.9±201.6
mA
W
−1
under
3
V
bias
at
485
nm
wavelength,
among
low‐dimensional
halides.
bias,
self‐powered
parameters
81.2±3.0
(6.98±0.21)×10
9
Jones.
Nanomaterials,
Год журнала:
2024,
Номер
14(23), С. 1920 - 1920
Опубликована: Ноя. 28, 2024
Though
much
progress
has
been
achieved
in
the
discovery
of
new
molecular
ferroelectrics
recent
years,
practical
applications
and
related
physics
are
still
rarely
explored
due
to
difficulty
high-quality
film
production
patterning
issues.
Single-crystalline
films
patterns
high
demand
for
device
performance.
Through
a
template-assisted
space-confined
strategy,
herein,
ordered
single-crystalline
nanowire
optoelectronic
devices
semiconducting
ferroelectric
(SMF),
hexane-1,6-diammonium
pentaiodobismuth
(HDA-BiI
