Nano-Micro Letters,
Journal Year:
2020,
Volume and Issue:
12(1)
Published: June 5, 2020
Abstract
Two-dimensional
black
phosphorus
(2D
BP),
an
emerging
material,
has
aroused
tremendous
interest
once
discovered.
This
is
due
to
the
fact
that
it
integrates
unprecedented
properties
of
other
2D
materials,
such
as
tunable
bandgap
structures,
outstanding
electrochemical
properties,
anisotropic
mechanical,
thermodynamic,
and
photoelectric
making
great
research
value
in
many
fields.
The
emergence
BP
greatly
promoted
development
energy
storage
devices,
especially
lithium-ion
batteries.
However,
application
BP,
there
are
still
some
problems
be
solved
urgently,
difficulty
synthesis
large-scale
high-quality
phosphorene,
poor
environmental
stability,
volume
expansion
electrode
materials.
Herein,
according
latest
progress
field
storage,
we
systematically
summarize
compare
preparation
methods
phosphorene
discuss
basic
structure
instability
passivation
techniques.
In
particular,
practical
challenges
anode
material
for
batteries
analyzed
detail.
Finally,
personal
perspectives
on
future
presented.
Nanophotonics,
Journal Year:
2020,
Volume and Issue:
9(8), P. 2557 - 2567
Published: March 11, 2020
Abstract
Air-stable
broadband
saturable
absorbers
(SAs)
exhibit
a
promising
application
potential,
and
their
preparations
are
also
full
of
challenges.
Palladium
selenide
(PdSe
2
),
as
novel
two-dimensional
(2D)
layered
material,
exhibits
competitive
optical
properties
including
wide
tunable
bandgap,
unique
pentagonal
atomic
structure,
excellent
air
stability,
so
on,
which
significant
in
designing
air-stable
SAs.
In
our
work,
theoretical
calculation
the
electronic
band
structures
bandgap
characteristics
PdSe
studied
first.
Additionally,
nanosheets
synthesized
used
for
Based
on
SA,
ultrafast
mode-locked
operations
1-
1.5-μm
spectral
regions
generated
successfully.
For
Er-doped
operations,
central
wavelength,
pulse
width,
repetition
rate
1561.77
nm,
323.7
fs,
20.37
MHz,
respectively.
Meanwhile,
all
normal
dispersion
regions,
Yb-doped
fiber
laser
with
767.7-ps
width
15.6-mW
maximum
average
output
power
is
Our
results
fully
reveal
capacity
SA
provide
new
opportunities
ultra-fast
photonic
devices.
Abstract
Silicon
(Si)
photonics
have
established
as
leading
technologies
in
addressing
the
rapidly
increasing
demands
of
huge
data
transfer
optical
communication
systems
with
compact
footprints,
small
power
consumption,
and
ultradense
bandwidth,
which
are
driven
by
next
generation
supercomputers
big
era.
Particularly,
Si
will
penetrate
into
links
at
an
ever‐small
scale,
namely
chip‐to‐chip
on‐chip.
However,
nanostructures
made
indirect
bandgap
not
ideal
candidates
for
on‐chip
light
sources,
modulators,
photodetectors,
most‐frequently
require
materials
direct
bandgap.
Thanks
to
advent
graphene,
transition
metal
dichalcogenides
other
two‐dimensional
(2D)
materials,
can
facilitate
extraordinary
progresses
improving
device
performance
ultrathin
their
integration
furnishes
a
heterogeneous
platform
construct
fully
functional
highly
integrated
photonic
systems.
In
this
work,
current
advancements
applications
photonics‐2D
heterostructures,
inclusive
all
essential
chip‐scale
modules
circuits,
well
future
prospective
challenges
reviewed
discussed.
The
present
study
sets
out
objectively
measure
feasibility
hybrid
between
2D
communications
advanced
beyond.
Nanophotonics,
Journal Year:
2020,
Volume and Issue:
9(8), P. 2577 - 2585
Published: June 17, 2020
Abstract
MXene
as
a
novel
two-dimensional
(2D)
material
exhibits
lot
of
advantages
in
nonlinear
optics.
However,
the
common
MXene,
Ti
3
C
2
T
x
and
CT
nanosheets,
easily
suffer
from
degradation
under
ambient
conditions,
greatly
limiting
their
practical
applications.
Here,
we
demonstrated
one
compounds,
V
,
which
has
strong
modulation
depth
(nearly
50%),
can
serve
an
excellent
saturable
absorber
(SA)
passively
mode-locked
(PML)
fiber
lasers.
More
importantly,
206th
harmonic
order
been
successfully
generated
Er-doped
laser,
exhibiting
maximum
repetition
rate
1.01
GHz
pulse
duration
940
fs,
to
best
our
knowledge,
is
highest
laser
SA
so
far.
In
addition,
high
operation
maintain
at
least
24
h
without
any
noticeable
change,
suggesting
nanosheets
have
stability
this
laser.
It
anticipated
that
present
work
pave
way
new
design
for
MXene-based
heterostructures
high-performance
Nano-Micro Letters,
Journal Year:
2020,
Volume and Issue:
12(1)
Published: June 5, 2020
Abstract
Two-dimensional
black
phosphorus
(2D
BP),
an
emerging
material,
has
aroused
tremendous
interest
once
discovered.
This
is
due
to
the
fact
that
it
integrates
unprecedented
properties
of
other
2D
materials,
such
as
tunable
bandgap
structures,
outstanding
electrochemical
properties,
anisotropic
mechanical,
thermodynamic,
and
photoelectric
making
great
research
value
in
many
fields.
The
emergence
BP
greatly
promoted
development
energy
storage
devices,
especially
lithium-ion
batteries.
However,
application
BP,
there
are
still
some
problems
be
solved
urgently,
difficulty
synthesis
large-scale
high-quality
phosphorene,
poor
environmental
stability,
volume
expansion
electrode
materials.
Herein,
according
latest
progress
field
storage,
we
systematically
summarize
compare
preparation
methods
phosphorene
discuss
basic
structure
instability
passivation
techniques.
In
particular,
practical
challenges
anode
material
for
batteries
analyzed
detail.
Finally,
personal
perspectives
on
future
presented.
