Advanced Materials,
Год журнала:
2023,
Номер
35(38)
Опубликована: Июнь 7, 2023
The
perovskite
compound
CsPbBr3
has
recently
been
discovered
as
a
promising
room-temperature
semiconductor
radiation
detector,
offering
an
inexpensive
and
easy-to-manufacture
alternative
to
the
current
benchmark
material
Cd1-x
Znx
Te
(CZT).
performance
of
sensors
is
evaluated
under
harsh
conditions,
such
high
doses
often
found
in
industrial
settings
extreme
space.
Results
show
minimal
degradation
detector
after
exposure
1
Mrad
Co-60
gamma
radiation,
with
no
significant
change
energy
resolution
or
hole
mobility
lifetime.
Additionally,
many
devices
are
still
functional
being
exposed
10
dose
over
3
days,
those
that
do
not
survive
can
be
refabricated
into
working
detectors.
These
results
suggest
failure
mode
these
likely
related
interface
between
electrode
their
reaction,
itself
itself.
Overall,
study
suggests
potential
reliable
efficient
various
applications,
including
involving
fluxes
energies
gamma-ray
radiation.
Advanced Materials,
Год журнала:
2024,
Номер
36(24)
Опубликована: Март 30, 2024
Abstract
0D
Bi‐based
329‐type
halide
perovskite
is
demonstrated
as
a
promising
semiconductor
for
X‐ray
detection
due
to
its
strong
absorption,
superior
stability,
availability
of
large
single
crystals
(SCs)
and
solution
processibility
at
low
temperature.
However,
mobility‐lifetime
product
(
µτ
)
limits
further
improvement
in
sensitivity.
Based
on
the
first‐principles
calculations,
this
work
designs
new
2D
using
mixed‐halide‐induced
structural
dimension
regulation
strategy.
By
continuous
supply
precursor
solution,
successfully
grows
inch‐sized
high‐quality
SCs.
These
SCs
exhibit
product,
high
resistivity,
ion
migration.
The
detectors
fabricated
show
sensitivity
24,509
µC
Gy
air
−1
cm
−2
,
short
response
time
315
µs,
limit
4.3
nGy
s
stability.
properties
are
best
among
all
lead‐free
comparable
those
lead‐based
detectors.
linear
array
detector
assembled
first
also
shows
spatial
resolution
10.6
lp
mm
during
imaging.
performance
combined
with
stability
these
expected
promote
generation
technologies.
Advanced Materials,
Год журнала:
2024,
Номер
36(24)
Опубликована: Март 4, 2024
Low-toxicity
tin
halide
perovskites
with
excellent
optoelectronic
properties
are
promising
candidates
for
photodetection.
However,
perovskite
photodetectors
have
suffered
from
high
dark
current
owing
to
uncontrollable
Sn
Nano Futures,
Год журнала:
2024,
Номер
8(3), С. 032001 - 032001
Опубликована: Март 22, 2024
Abstract
The
dissemination
of
sensors
is
key
to
realizing
a
sustainable,
‘intelligent’
world,
where
everyday
objects
and
environments
are
equipped
with
sensing
capabilities
advance
the
sustainability
quality
our
lives—e.g.
via
smart
homes,
cities,
healthcare,
logistics,
Industry
4.0,
precision
agriculture.
realization
full
potential
these
applications
critically
depends
on
availability
easy-to-make,
low-cost
sensor
technologies.
Sensors
based
printable
electronic
materials
offer
ideal
platform:
they
can
be
fabricated
through
simple
methods
(e.g.
printing
coating)
compatible
high-throughput
roll-to-roll
processing.
Moreover,
often
allow
fabrication
flexible/stretchable/biodegradable
substrates,
thereby
enabling
deployment
in
unconventional
settings.
Fulfilling
promise
for
will
require
device
innovations
enhance
their
ability
transduce
external
stimuli—light,
ionizing
radiation,
pressure,
strain,
force,
temperature,
gas,
vapours,
humidity,
other
chemical
biological
analytes.
This
Roadmap
brings
together
viewpoints
experts
various
materials—and
devices
thereof—to
provide
insights
into
status
outlook
field.
Alongside
recent
innovations,
roadmap
discusses
outstanding
challenges
pertaining
each
technology.
Finally,
points
promising
directions
overcome
thus
enable
ubiquitous
world.
Advanced Materials,
Год журнала:
2023,
Номер
35(52)
Опубликована: Апрель 25, 2023
The
large-scale
production
of
2D
transition
metal
dichalcogenides
(TMDs)
is
essential
to
realize
their
industrial
applications.
Chemical
vapor
deposition
(CVD)
has
been
considered
as
a
promising
method
for
the
controlled
growth
high-quality
and
TMDs.
During
CVD
process,
substrate
plays
crucial
role
in
anchoring
source
materials,
promoting
nucleation
stimulating
epitaxial
growth.
It
thus
significantly
affects
thickness,
microstructure,
crystal
quality
products,
which
are
particularly
important
obtaining
TMDs
with
expected
morphology
size.
Here,
an
insightful
review
provided
by
focusing
on
recent
development
associated
engineering
strategies
preparation
First,
interaction
between
substrates,
key
factor
systematically
discussed
combining
latest
theoretical
calculations.
Based
this,
effect
various
approaches
large-area
summarized
detail.
Finally,
opportunities
challenges
future
discussed.
This
might
provide
deep
insight
into
controllable
toward
industrial-scale
practical
Advanced Materials,
Год журнала:
2023,
Номер
35(29)
Опубликована: Апрель 6, 2023
Perovskites
are
attracting
attention
for
optoelectronic
devices.
Despite
their
promise,
the
large-scale
synthesis
of
perovskite
materials
with
exact
stoichiometry,
especially
high-entropy
perovskites,
has
been
a
major
challenge.
Moreover,
difficulty
in
stoichiometry
control
also
hinders
development
X-ray
flat-panel
detectors.
Previous
reports
all
employed
simple
MAPbI3
as
active
layer,
while
performance
still
falls
short
optimized
single-crystal-based
single-pixel
Herein,
scalable
and
universal
strategy
mechanochemical
method
is
adopted
to
synthesize
stoichiometric
powders
high
quality
quantity
(>1
kg
per
batch).
By
utilizing
these
first
FA0.9
MA0.05
Cs0.05
Pb(I0.9
Br0.1
)3
-based
detector
low
trap
density
large
mobility-lifetime
product
(7.5
×
10-3
cm2
V-1
)
reported.
The
assembled
panel
exhibits
close-to-single-crystal
(high
sensitivity
2.1
104
µC
Gyair-1
cm-2
ultralow
detection
limit
1.25
nGyair
s-1
),
spatial
resolution
0.46
lp/pixel,
well
excellent
thermal
robustness
under
industrial
standards.
perovskite-based
FPDs
potential
facilitate
new-generation
X-ray-detection
systems.
ACS Catalysis,
Год журнала:
2024,
Номер
14(11), С. 8414 - 8426
Опубликована: Май 15, 2024
Superseding
the
oxygen
evolution
reaction
with
thermodynamically
favorable
and
economically
attractive
organic
oxidation
is
crucial
to
acquiring
eco-friendly
hydrogen
production
via
an
electrochemical
process
coupled
renewable
energy.
A
bifunctional
electrocatalyst,
Ru@NixCo1–x(OH)2,
featuring
a
dandelion-liked
structure
assembled
into
two-electrode
configuration,
requires
voltage
of
1.35
V
for
cathode
H2
anode
2,5-furandicarboxylic
acid.
The
heteronuclear
bridging
atoms
at
Ru–Ni
sites
accelerate
water
splitting
through
Volmer–Tafel
mechanism
enhance
*H
coverage,
as
demonstrated
by
in
situ
spectroscopy
analysis.
Simultaneously,
Ru–Co
serve
adsorption
5-hydroxymethylfurfural,
achieving
100%
Faradic
efficiency
selectivity.
Upon
upscaling
configuration
2
×
cm2
membrane
electrode
assembly
reactor,
FDCA
rate
243
mg/h
was
achieved,
electricity
savings
approximately
0.67
kWh/m3
(H2).
This
work
offers
promising
avenue
concurrent
biomass
upgrading
industrial
practicability.
Advanced Materials Technologies,
Год журнала:
2024,
Номер
9(20)
Опубликована: Май 26, 2024
Abstract
Metal
halide
perovskites
are
revolutionizing
X‐ray
detection
through
a
combination
of
low
cost,
solution
processing,
favorable
optoelectronic
properties,
and
high
stopping
power
for
high‐energy
ionizing
radiation.
While
perovskite
single
crystals
polycrystalline
wafers
considered
direct
converters,
most
medical
applications
based
on
scintillators
that
shift
radiation
into
the
visible.
Several
materials
market,
but
demonstrations
CsPbBr
3
nanocrystals,
possibly
embedded
in
matrix
material
or
combined
with
organic
molecules
as
luminescent
species,
highlight
their
competitiveness
established
terms
radioluminescence
yield
transient
behavior.
Major
hurdles
nanocrystal
must
overcome
environmental
stability
toxicity.
there
still
few
examples
high‐performance
lead‐free
scintillators,
microcrystalline
emerging
promising
reduced
toxicity,
significant
Stokes
shifts
to
avoid
reabsorption
emission
thick
films.
Thus,
near
future
scintillator
will
primarily
be
adoption
recipes
proven
properties
form.
The
colloidal
solutions
facilitate
large‐scale
printing
homogeneous
scattering‐free
films
obtain
contrast
spatial
resolution
images
by
scintillation.
Advanced Functional Materials,
Год журнала:
2024,
Номер
34(26)
Опубликована: Фев. 28, 2024
Abstract
Ultrathin
halide
perovskites
have
drawn
tremendous
attention
in
nano‐/micro‐optoelectronic
devices
due
to
their
fascinating
performance
and
capability
for
chip
integration.
Unfortunately,
it
is
highly
challenging
obtain
large‐scale
chronically
stable
ultrathin
practical
application.
Herein,
the
universal
low‐temperature
vapor‐phase
synthesis
of
perovskite
family
materials
with
thickness
down
2D
level
lateral
size
up
1.5
cm
×
reported
by
developing
a
self‐limiting
chemical
vapor
deposition
strategy.
The
products
are
found
exhibit
superior
stability
over
180
days
under
an
air
environment.
resultant
photodetectors
demonstrate
charming
optoelectronic
properties
such
as
responsivity
(3.7
10
3
A
W
−1
),
ultrafast
response
time
(<10
µs),
outstanding
low‐level
light
image
sensing
capability.
This
strategy
offers
great
potential
applications
future
devices.
