ACS Applied Nano Materials,
Год журнала:
2024,
Номер
7(5), С. 5465 - 5475
Опубликована: Фев. 28, 2024
Room-temperature
phosphorescent
(RTP)
carbon
dots
(CDs)
have
been
increasingly
used
in
many
applications,
including
anticounterfeiting
and
information
encryption.
However,
synthesizing
RTP
CDs
with
a
specific
average
lifetime
of
phosphorescence
remains
formidable
challenge.
A
breakthrough
is
needed
formulating
the
synthesis
process
to
find
suitable
formulation
produce
an
optimal
phosphorescence.
Machine
learning
(ML)
has
recently
successfully
for
guiding
material
offering
insight
into
prediction,
optimization,
acceleration
CDs'
process.
regression
ML
model
on
microwave-assisted
CD
established
reveal
relationship
between
various
parameters
enhance
solid-state
phase.
exhibit
blue
emission
when
irradiating
UV
green
afterglow
after
turned
off.
These
emissions
can
last
7
s,
are
easily
observed
by
naked
eye,
show
ultralong
up
1.6
s.
Moreover,
designed
guided
ML,
this
feature
was
explored
achieve
multilevel
encryption
encrypt
decrypt
secret
dynamic
time-dependent
displays.
Our
results
provide
strategy
extending
their
application
scope
high-level
security.
Chemical Society Reviews,
Год журнала:
2023,
Номер
53(2), С. 606 - 623
Опубликована: Дек. 15, 2023
This
review
highlights
the
recent
advances
and
discusses
challenges
perspectives
of
stimulus-responsive
polymer
(SRP)-based
information-storage
materials,
which
exhibit
multi-mode
or
multi-level
anti-counterfeiting
performance.
Chemical Reviews,
Год журнала:
2023,
Номер
123(18), С. 11047 - 11136
Опубликована: Сен. 7, 2023
Advances
in
nanotechnology
and
nanomaterials
have
attracted
considerable
interest
play
key
roles
scientific
innovations
diverse
fields.
In
particular,
increased
attention
has
been
focused
on
carbon-based
exhibiting
extended
structures
unique
properties.
Among
these
materials,
zero-dimensional
structures,
including
fullerenes,
carbon
nano-onions,
nanodiamonds,
dots,
possess
excellent
bioaffinities
superior
fluorescence
properties
that
make
suitable
for
application
to
environmental
biological
sensing,
imaging,
therapeutics.
This
review
provides
a
systematic
overview
of
the
classification
structural
properties,
design
principles
preparation
methods,
optical
sensing
applications
nanomaterials.
Recent
interesting
breakthroughs
sensitive
selective
imaging
heavy
metal
pollutants,
hazardous
substances,
bioactive
molecules
as
well
information
encryption,
super-resolution
photoacoustic
phototherapy
nanomedicine
delivery
are
main
focus
this
review.
Finally,
future
challenges
prospects
materials
highlighted
envisaged.
presents
comprehensive
basis
directions
designing,
developing,
applying
fascinating
fluorescent
sensors
fabricated
based
specific
requirements
numerous
research
Molecules,
Год журнала:
2023,
Номер
28(6), С. 2772 - 2772
Опубликована: Март 19, 2023
Carbon
quantum
dots
are
the
materials
of
a
new
era
with
astonishing
properties
such
as
high
photoluminescence,
chemical
tuneability
and
biocompatibility.
Since
their
discovery,
carbon
have
been
described
nanometric
high-fluorescent
nanoparticles,
but
this
definition
has
become
weaker
year
after
year.
Nowadays,
classification
physical
explanation
optical
structure
remain
matter
debate.
In
review,
we
provide
clear
discussion
on
these
points,
providing
starting
point
for
rationalization
comprehensive
view
features
dots.
Chemical Science,
Год журнала:
2023,
Номер
14(14), С. 3705 - 3729
Опубликована: Янв. 1, 2023
Carbon
dot-based
room
temperature
phosphorescence
materials
are
reported,
mainly
focusing
on
the
outstanding
contributions
over
years,
emission,
lifetime,
preparation
and
application.
Advanced Functional Materials,
Год журнала:
2024,
Номер
34(37)
Опубликована: Март 7, 2024
Abstract
Comprehensive
research
into
afterglow
emission
in
the
near‐infrared
(NIR)
region
of
carbon
dots
(CDs)
is
currently
lacking.
In
this
study,
highly
efficient
multicolor
CDs
are
synthesized
with
fluorescence
from
blue
to
NIR
using
Rhodamine
6G.
Boron
oxide
(B
2
O
3
)
employed
as
a
matrix
for
encapsulating
and
confining
CDs,
inhibiting
triplet
exciton
quenching.
Furthermore,
structural
rigidity
enhanced
due
formation
carbon‐boron
(C─B)
covalent
bonds
between
B
,
achieving
tunable
ranging
463
722
nm
lifetimes
up
801
ms.
The
green–yellow
composite
exhibits
an
impressive
quantum
yield
37.67%
while
demonstrating
thermally
activated
delayed
(TADF).
Thus,
coated
onto
alternating‐current
light‐emitting
diode
(BAC‐LED)
fabricate
white
AC‐LED,
which
successfully
prepared
Commission
Internationale
de
L'Eclairage
(CIE)
at
coordinates
(0.32,
0.34),
accompanied
by
color
rendering
index
(CRI)
reaching
81.1.
bright
compensates
zero‐point
flickering
BAC‐LED,
resulting
stable
gentle
emission.
potential
applications
these
luminescent
materials
optoelectronic
devices
undoubtedly
widened
remarkable
advancement.
Advanced Functional Materials,
Год журнала:
2023,
Номер
34(7)
Опубликована: Ноя. 3, 2023
Abstract
Room
temperature
phosphorescent
carbon
dots
(RTP
CDs)
have
received
increasing
attention
in
recent
years
due
to
their
outstanding
optical
properties
and
potential
applications.
It
is
worth
noting
that
RTP
CDs
aqueous
solution
inspired
special
interests
because
of
low
toxicity,
long
lifetime,
ability
avoid
autofluorescence
background
fluorescence,
exhibiting
wide
application
prospects
time‐resolved
biological
imaging
sensing.
However,
achieving
solutions
remains
a
considerable
challenge
water
molecules
oxygen
can
cause
the
deactivation
triplet‐state
excitons,
resulting
phosphorescence
quenching.
Several
strategies
been
proposed
counter
problem
including
encapsulated
rigid
matrix,
hydrogen
bonding,
covalent
bonding
fixation.
Consequently,
more
significant
number
materials
with
excellent
stability,
multicolor
are
successfully
obtained.
Herein,
development
as
well
corresponding
fabricated
luminescence
mechanism
detailly
summarized
reviewed.
Furthermore,
various
applications
water‐phase
information
security,
sensing,
bioimaging,
light‐emitting
diodes,
fingerprinting
also
discussed.
Finally,
an
outlook
on
proposed.
