Small,
Journal Year:
2023,
Volume and Issue:
20(2)
Published: Sept. 3, 2023
Abstract
Carbon
dots
(CDs)
are
a
newly
discovered
type
of
fluorescent
material
that
has
gained
significant
attention
due
to
their
exceptional
optical
properties,
biocompatibility,
and
other
remarkable
characteristics.
However,
single
CDs
have
some
drawbacks
such
as
self‐quenching,
low
quantum
yield
(QY),
poor
stability.
To
address
these
issues,
researchers
turned
organosilicon,
which
is
known
for
its
green,
economical,
abundant
properties.
Organosilicon
widely
used
in
various
fields
including
optics,
electronics,
biology.
By
utilizing
organosilicon
synthetic
precursor,
the
QY,
resistance
self‐quenching
can
be
improved.
Meanwhile,
combination
with
enables
functionalization
CDs,
significantly
expands
original
application
scenarios.
This
paper
comprehensively
analyzes
two
main
categories:
precursors
CD
synthesis
matrix
materials
compounding
CDs.
The
role
categories
thoroughly
reviewed.
In
addition,
presents
applications
compounded
detection
sensing,
anti‐counterfeiting,
optoelectronic
applications,
biological
applications.
Finally,
briefly
discusses
current
development
challenges
future
directions
field.
Nano Energy,
Journal Year:
2023,
Volume and Issue:
109, P. 108269 - 108269
Published: Feb. 9, 2023
In
this
paper,
we
present
a
technology
summary
and
update
on
the
latest
research
advances
in
luminescent
solar
concentrators
(LSCs).
LSCs
are
optoelectronic
devices
based
sun
irradiation
collector
made
of
fluorophores
that,
after
radiation
absorption,
re-emit
visible
light
propagating
via
waveguide
towards
smaller
area
photovoltaic
(PV)
cells
which
convert
radiant
energy
into
electricity.
Here
review
their
basic
principles,
performance
analysis,
measurements,
various
types
so
far
employed,
design
architectures
proposed.
We
also
include
brief
use
transfer
process
photonics
to
reduce
optical
losses
improve
photons
trapping
efficiency.
While
main
application
today
is
building
integrated
PV
meet
future
emission
targets,
other
envisaged
alternative
applications
briefly
summarised.
The
final
performances
terms
electrical
power
conversion
linked
device
designs,
while
current
limitations
scalability
stability
impeding
wider
use.
Chemical Science,
Journal Year:
2023,
Volume and Issue:
14(14), P. 3705 - 3729
Published: Jan. 1, 2023
Carbon
dot-based
room
temperature
phosphorescence
materials
are
reported,
mainly
focusing
on
the
outstanding
contributions
over
years,
emission,
lifetime,
preparation
and
application.
Small,
Journal Year:
2023,
Volume and Issue:
19(42)
Published: June 17, 2023
Here,
a
rational
strategy
to
achieve
multifunctional
N,
S
codoped
carbon
dots
(N,
S-CDs)
is
reported,
aiming
improve
the
photoluminescence
quantum
yields
(PLQYs)
of
CDs.
The
synthesized
S-CDs
have
excellent
stability
and
emission
properties
independent
excitation
wavelength.
Through
introduction
element
doping,
fluorescence
CDs
red-shifted
from
430
545
nm,
corresponding
PLQYs
can
be
greatly
enhanced
11.2%
65.1%.
It
found
that
doping
elements
causes
an
increase
in
size
elevated
graphite
N
content,
which
may
key
factors
cause
redshift
emission.
Furthermore,
also
serves
suppress
nonradiative
transitions,
responsible
for
PLQYs.
Besides,
certain
solvent
effect
applied
detect
water
content
organic
solvents,
strong
sensitivity
alkaline
environment.
More
importantly,
used
"on-off-on"
dual
detection
mode
between
Zr4+
NO2-
.
In
addition,
combinedwith
polyvinylpyrrolidone
(PVP)
utilized
as
fluorescent
inks
anti-counterfeiting
applications.
Nano Energy,
Journal Year:
2023,
Volume and Issue:
115, P. 108674 - 108674
Published: July 10, 2023
Carbon
dots
(CDs)
generally
suffer
from
aggregation-induced
fluorescence
quenching
effect
in
solid-state,
which
significantly
limits
their
application
photoelectric
devices.
Due
to
this
effect,
it
is
a
great
challenge
achieve
high-transparency
and
high-performance
luminescent
solar
concentrators
(LSCs)
based
on
CDs.
Here,
the
synthesis
of
organosilane-grafted
carbon
(Si-CDs)
rationally
designed
by
hydrothermal
method
using
anhydrous
citric
acid,
ethanolamine
KH-792
as
reaction
precursors.
The
obtained
Si-CDs
can
be
uniformly
dispersed
polyvinyl
alcohol
(PVA)
matrix
through
dehydration
condensation
hydrogen
bonding
between
silicon
hydroxyl
group
PVA.
Based
property,
Si-CDs/PVA
thin-film
LSCs
(5
×
5
0.2
cm3)
with
ultrahigh
CD
loading
(25
wt%)
high
transparency
fabricated,
exhibiting
excellent
absorption
UV
spectral
region
about
90%
transmission
visible
range.
Furthermore,
power
conversion
efficiency
(PCE)
reach
2.09%
under
standard
light
shows
stability
even
over
12
weeks.
This
synthetic
design
expected
beneficial
for
future
development
paves
way
CDs-based
