Advanced Optical Materials,
Journal Year:
2023,
Volume and Issue:
12(2)
Published: Sept. 28, 2023
Abstract
Ultrahigh‐contrast
photodetection
with
low
background
noise
is
of
critical
importance
for
accurate
image‐sensing
in
deep‐sea
and
deep‐space
exploration.
The
state‐of‐the‐art
silicon
III–V
semiconductor‐based
photodetectors
usually
require
extended
exposure
to
incident
light
high‐quality
sensing
darkness,
which
unfortunately
results
large
room
temperature
dark
currents
(
RT
‐
I
)
deteriorates
the
expected
imaging
contrasts.
Herein,
a
high‐performance
violet
phosphorus
(VP)
phototransistor
reported
by
constructing
trap‐free
interface
between
VP
channel
hexagonal
boron
nitride
h
‐BN)
dielectric
via
perfect
van
der
Waals
stacking.
device
shows
an
extremely
80
fA
gate‐tunable
high
ON/OFF
ratio
over
10
5
,
2–4
orders
magnitude
superior
that
conventional
counterparts.
A
photodetector
array
has
been
fabricated
demonstrate
high‐contrast
capability.
findings
effectiveness
ultrahigh‐contrast
applications,
while
also
presenting
exciting
opportunities
enhance
qualities
through
architectures
optoelectronics.
Advanced Healthcare Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 10, 2025
Abstract
Violet
phosphorus
(VP)
is
a
allotrope
first
discovered
by
Hittorf
in
1865,
which
has
aroused
more
attention
the
biomedical
field
recent
years
attributed
to
its
gradually
unique
properties.
VP
can
be
further
categorized
into
bulk
VP,
nanosheets
(VPNs),
and
quantum
dots
(VPQDs),
chemical
vapor
transport
(CVT),
liquid‐phase/mechanical/laser
exfoliation,
solvothermal
synthesis
are
common
preparation
approaches
of
VPNs,
VPQDs,
respectively.
Compared
with
another
(black
phosphorus,
BP)
that
once
highly
regarded
applications,
nanomaterial
(namely
VPNs
VPQDs)
not
only
exhibits
tunable
bandgap,
moderate
on/off
current
ratio,
good
biodegradability,
but
shows
enhanced
stability
biosafety
as
well,
allowing
it
promising
candidate
for
variety
applications
like
antibacterial
therapy,
anticancer
biosensing
disease
diagnosis.
In
this
review,
classification
relevant
routes
initially
summarized,
properties
momentous
subsequently
expounded.
The
latest
research
advances
emerging
then
introduced
detail,
both
existing
challenges
future
prospects
also
discussed.
Advanced Optical Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 13, 2025
Abstract
Electron
tunneling
devices
attract
attention
due
to
their
potential
applications
in
integrated
circuits,
memories,
and
high‐frequency
oscillators.
However,
limited
works
are
devoted
the
optical
control
of
electron
processes.
The
main
reason
is
low
concentration
photogenerated
carriers
concerning
equilibrium
values
heavy‐doped
regions.
In
this
work,
violet
phosphorus
(VP)
with
a
unique
bilayer
tubular
structure
supplies
an
excellent
platform
for
investigating
mechanisms
under
photo
illumination.
A
VP‐based
vertical
diode
made
metal‐insulator‐semiconductor
(MIS)
stacking
presented.
increase
current
by
≈4.2
times
through
illumination,
leading
considerable
rectification
ratio.
addition,
three‐terminal
field‐effect
transistor
(TFET)
from
VP
flake
different
thicknesses
also
interband
electrons
results
tunable
negative
differential
transconductance
(NDT)
at
room
temperature.
photoillumination
can
modulate
onset
NDT
region
variation
density
states
Fermi
level
alignment
channel
drain
region.
These
advance
understanding
transport
devices,
showing
great
exploiting
novel
2D
multifunctional
interactions
between
light
carriers’
tunneling.
Advanced Materials Interfaces,
Journal Year:
2022,
Volume and Issue:
10(5)
Published: Dec. 23, 2022
Abstract
As
the
promising
and
highly‐focused
materials
after
silicon,
carbon,
phosphorus
promote
development
of
nanotechnology
due
to
its
allotropes
with
unique
structures
properties.
The
carbon
0D
fullerene,
1D
nanotube,
2D
graphene
stimulate
investigation
structures,
synthesis,
properties,
further
applications
nanomaterials.
Analogous
is
demonstrated
have
a
rich
phase
diagram.
fullerenes,
nanotubes
fibrous
red
phosphorus,
recently
black
phosphorene
violet
analogous
graphene,
developed.
photoelectronic
properties
as
semiconductors,
energy
storage
materials,
biomaterials,
sensors
are
also
investigated.
Great
efforts
dedicated
studies
structure,
carbons
phosphorus.
However,
there
no
systematic
review
structure
compared
allotropes.
Herein,
along
possible
future
perspective
compare
in
this
work
based
on
classification
different
dimensions.
Advanced Optical Materials,
Journal Year:
2023,
Volume and Issue:
12(2)
Published: Sept. 28, 2023
Abstract
Ultrahigh‐contrast
photodetection
with
low
background
noise
is
of
critical
importance
for
accurate
image‐sensing
in
deep‐sea
and
deep‐space
exploration.
The
state‐of‐the‐art
silicon
III–V
semiconductor‐based
photodetectors
usually
require
extended
exposure
to
incident
light
high‐quality
sensing
darkness,
which
unfortunately
results
large
room
temperature
dark
currents
(
RT
‐
I
)
deteriorates
the
expected
imaging
contrasts.
Herein,
a
high‐performance
violet
phosphorus
(VP)
phototransistor
reported
by
constructing
trap‐free
interface
between
VP
channel
hexagonal
boron
nitride
h
‐BN)
dielectric
via
perfect
van
der
Waals
stacking.
device
shows
an
extremely
80
fA
gate‐tunable
high
ON/OFF
ratio
over
10
5
,
2–4
orders
magnitude
superior
that
conventional
counterparts.
A
photodetector
array
has
been
fabricated
demonstrate
high‐contrast
capability.
findings
effectiveness
ultrahigh‐contrast
applications,
while
also
presenting
exciting
opportunities
enhance
qualities
through
architectures
optoelectronics.
