Small,
Journal Year:
2023,
Volume and Issue:
19(43)
Published: June 27, 2023
Flexible
energy
storage
device
is
one
of
the
most
critical
components
as
power
source
for
wearable
electronics.
The
emergence
MXenes,
a
growing
family
2D
nanomaterials,
has
demonstrated
brand-new
possibility
flexible
storage.
However,
fabrication
MXene
films
with
satisfactory
mechanical,
electrical,
and
electrochemical
reliabilities
remains
challenging
due
to
weak
interlayer
interactions
self-restacking
sheets.
Sequential
bridging
polydopamine/polyethyleneimine-functionalized
(PDA/PEI)-coated
sheets
induce
synergistically
covalent
hydrogen
binding
connections
MXene-based
here.
By
interrupting
self-hydrogen
bonding
π-π
stacking
interactions,
introduction
long-chain
PEI
can
not
only
inhibit
massive
aggregation
PDA,
but
also
improve
continuity
interconnection
network
PDA/PEI
between
layers.
Hence,
as-prepared
MXene/PDA/PEI
composite
film
displays
high
mechanical
strength
(≈366
MPa)
which
achieves
12-fold
improvement
compared
pure
film,
well
superior
capability
(≈454
F
g-1
at
5
mV
s-1
)
rate
performance
≈48%
10
000
.
This
modulation
inserted
polymer
layers
provide
an
avenue
assembling
films,
even
be
extended
other
platelets
varied
applications.
Nano-Micro Letters,
Journal Year:
2024,
Volume and Issue:
16(1)
Published: Feb. 29, 2024
Zinc-air
batteries
(ZABs)
are
gaining
attention
as
an
ideal
option
for
various
applications
requiring
high-capacity
batteries,
such
portable
electronics,
electric
vehicles,
and
renewable
energy
storage.
ZABs
offer
advantages
low
environmental
impact,
enhanced
safety
compared
to
Li-ion
cost-effectiveness
due
the
abundance
of
zinc.
However,
early
research
faced
challenges
parasitic
reactions
at
zinc
anode
slow
oxygen
redox
kinetics.
Recent
advancements
in
restructuring
anode,
utilizing
alternative
electrolytes,
developing
bifunctional
catalysts
have
significantly
improved
ZABs.
Scientists
achieved
battery
reversibility
over
thousands
cycles,
introduced
new
efficiency
records
surpassing
70%.
Despite
these
achievements,
there
related
lower
power
density,
shorter
lifespan,
air
electrode
corrosion
leading
performance
degradation.
This
review
paper
discusses
different
configurations,
reaction
mechanisms
electrically
mechanically
rechargeable
ZABs,
proposes
remedies
enhance
overall
performance.
The
also
explores
recent
advancements,
applications,
future
prospects
electrically/mechanically
Nano-Micro Letters,
Journal Year:
2024,
Volume and Issue:
16(1)
Published: May 23, 2024
Perovskite
solar
cells
(PSCs)
offer
low
costs
and
high
power
conversion
efficiency.
However,
the
lack
of
long-term
stability,
primarily
stemming
from
interfacial
defects
susceptible
metal
electrodes,
hinders
their
practical
application.
In
past
few
years,
two-dimensional
(2D)
materials
(e.g.,
graphene
its
derivatives,
transitional
dichalcogenides,
MXenes,
black
phosphorus)
have
been
identified
as
a
promising
solution
to
solving
these
problems
because
dangling
bond-free
surfaces,
layer-dependent
electronic
band
structures,
tunable
functional
groups,
inherent
compactness.
Here,
recent
progress
2D
material
toward
efficient
stable
PSCs
is
summarized,
including
role
both
interface
electrodes.
We
discuss
beneficial
effects
on
perovskite
growth,
energy
level
alignment,
defect
passivation,
well
blocking
external
stimulus.
particular,
unique
properties
form
van
der
Waals
heterojunction
at
bottom
are
emphasized.
Finally,
perspectives
further
development
using
provided,
such
designing
high-quality
heterojunction,
enhancing
uniformity
coverage
nanosheets,
developing
new
materials-based
Energy & Environmental Science,
Journal Year:
2024,
Volume and Issue:
17(10), P. 3454 - 3469
Published: Jan. 1, 2024
Chlorinated-Ti
3
C
2
T
F
is
used
as
dual
functional
buried-interface
on
SnO
electron
transporting
layer
for
25.09%
high
performance
n–i–p
perovskite
solar
cells.
Nature Communications,
Journal Year:
2024,
Volume and Issue:
15(1)
Published: April 24, 2024
Abstract
Establishing
dependable,
cost-effective
electrical
connections
is
vital
for
enhancing
device
performance
and
shrinking
electronic
circuits.
MXenes,
combining
excellent
conductivity,
high
breakdown
voltage,
solution
processability,
two-dimensional
morphology,
are
promising
candidates
contacts
in
microelectronics.
However,
their
hydrophilic
surfaces,
which
enable
spontaneous
environmental
degradation
poor
dispersion
stability
organic
solvents,
have
restricted
certain
applications.
Herein,
electrohydrodynamic
printing
technique
used
to
fabricate
fully
solution-processed
thin-film
transistors
with
alkylated
3,4-dihydroxy-L-phenylalanine
functionalized
Ti
3
C
2
T
x
(AD-MXene)
as
source,
drain,
gate
electrodes.
The
AD-MXene
has
ethanol,
required
printing,
maintains
conductivity.
It
outperformed
conventional
vacuum-deposited
Au
Al
electrodes,
providing
good
due
its
hydrophobicity.
Further,
integrated
into
logic
gates
one-transistor-one-memory
cells.
This
work,
unveiling
the
ligand-functionalized
MXenes’
potential
printed
contacts,
promotes
environmentally
robust
MXene-based
electronics
(MXetronics).
Solar RRL,
Journal Year:
2024,
Volume and Issue:
8(7)
Published: Feb. 1, 2024
Finding
the
most
suitable
pathways
to
improve
interfacial
charge
transportation
in
lead
halide
perovskite
solar
cells
is
a
highly
desirable
research
area
enhance
device
performance
and
enable
commercialization.
The
complexities
of
dynamics,
encompassing
separation,
diffusion,
collection
processes,
pivot
on
thoughtful
selection
interlayers
their
inherent
properties.
Challenges
arise
from
nonideal
interfaces
characterized
by
mismatched
energy
levels
defects
that
hinder
efficient
transport.
To
address
these
concerns,
implementing
tailored
engineering
strategies,
including
interlayer
modification,
band
alignments,
passivation
techniques,
can
help
mitigate
unwanted
nonradiative
recombination.
This
review
aims
elucidate
impact
trap
states
suppressing
transport
device,
along
with
subsequent
techniques
designed
Following
that,
comprehensive
overview
presented,
highlighting
recent
advancements
interface
properties
between
electron
layer/perovskite
perovskite/hole
layer.
Significantly,
using
buffer
dipole
layers
as
overall
stability
investigated.
