Advances in Engineering Technology Research,
Journal Year:
2023,
Volume and Issue:
8(1), P. 645 - 645
Published: Nov. 15, 2023
It
is
very
meaningful
to
realize
color
recognition
and
mechanical-electrical
energy
conversion
in
one
material
simultaneously,
which
essential
improving
the
equipment
of
border
guards.
However,
simultaneously
endowing
with
regonition
presents
challenges
because
they
result
from
different
mechanism.
Herein,
a
series
hyperbranched
polymers,
HP9,
HP10,
HP11,
were
synthesized
via
Michael
addition
reaction
solve
dilemma.
Extensive
hydrogen
bonding
was
embedded
into
these
so
that
polymers
exhibit
good
triboelectrification
ability.
The
voltage
output
about
347
V,
current
2.8
μA,
charge
quantity
150
nC,
respectively.
Moreover,
display
excellent
fluorescence
under
365
nm
ultraviolet
light
based
on
mechanism
aggregation-induced
emission
(AIE).
Furthermore,
thermodynamic
behavior
mechanical
properties
can
be
regulated
by
adjusting
content
hard
segments.
Young's
modulus
strength
gradually
increase
segment
unit.
Young’s
modulus,
toughness
HP10
are
3.72
MPa,
2.69
MPa
19.55
MJ/m3,
combination
frictional
electrification
will
have
great
application
potential
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(17)
Published: March 5, 2024
By
combining
bioimaging
and
photodynamic
therapy
(PDT),
it
is
possible
to
treat
cancer
through
a
theranostic
approach
with
targeted
action
for
minimum
invasiveness
side
effects.
Thermally
activated
delayed
fluorescence
(TADF)
probes
have
gained
recent
interest
in
theranostics
due
their
ability
generate
singlet
oxygen
(
ACS Applied Bio Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: April 1, 2024
Recent
advances
have
been
made
in
second
near-infrared
(NIR-II)
fluorescence
bioimaging
and
many
related
applications
because
of
its
advantages
deep
penetration,
high
resolution,
minimal
invasiveness,
good
dynamic
visualization.
To
achieve
high-performance
NIR-II
bioimaging,
various
materials
probes
with
bright
emission
extensively
explored
the
past
few
years.
Among
these
emissive
materials,
conjugated
polymers
small
molecules
attracted
wide
interest
due
to
their
native
biosafety
tunable
optical
performance.
This
review
summarizes
brightness
strategies
available
for
highlights
recent
developments
bioimaging.
A
concise,
detailed
overview
molecular
design
regulatory
approaches
is
provided
terms
brightness,
long
wavelengths,
superior
imaging
Then,
typical
cases
which
are
used
as
introduced
by
providing
step-by-step
examples.
Finally,
current
problems
challenges
associated
accessing
briefly
discussed,
significance
future
prospects
proposed
offer
helpful
guidance
development
materials.
The Journal of Physical Chemistry A,
Journal Year:
2024,
Volume and Issue:
128(9), P. 1611 - 1619
Published: Feb. 21, 2024
Thermally
activated
delayed
fluorescence
(TADF)
emitters
based
on
the
triptycene
skeleton
demonstrate
exceptional
performance,
superior
stability,
and
low
efficiency
roll-off.
Understanding
interplay
between
luminescent
properties
of
triptycene-TADF
molecules
their
assembly
environments,
along
with
excited-state
characteristics,
necessitates
a
comprehensive
theoretical
exploration.
Herein,
we
predict
photophysical
in
thin
film
environment
using
quantum
mechanics/molecular
mechanics
method
quantify
substantial
dependency
heavy
atom
effects
reorganization
energies
Marcus–Levich
theory.
Our
calculated
for
two
recently
reported
closely
align
experimental
values.
We
design
three
novel
by
incorporating
chalcogen
elements
(O,
S,
Se)
to
modify
acceptor
units.
These
newly
designed
exhibit
reduced
enhanced
reverse
intersystem
crossing
(RISC)
rates.
The
effect
amplifies
spin–orbit
coupling,
thereby
facilitating
RISC
process,
particularly
at
remarkably
high
rate
∼109
s–1.
The Journal of Physical Chemistry C,
Journal Year:
2024,
Volume and Issue:
128(22), P. 9385 - 9392
Published: May 28, 2024
Thermally
activated
delayed
fluorescence
(TADF)
and
room-temperature
phosphorescence
(RTP)
are
two
highly
applicable
emissive
processes
due
to
their
time-resolved
characteristics
ability
respond
external
stimuli.
They
have
recently
been
integrated
for
comprehensive
use
in
some
solid-state
luminogens;
however,
there
remains
a
lack
of
molecular
systems
that
can
integrate
them
the
solution
aggregated
state,
which
considerably
limits
relevant
biological
applications.
In
this
study,
we
present
design
enabling
aggregation-induced
TADF–RTP
dual
emission
relying
on
coexistence
T1-to-S1
T1-to-S0
electronic
push–pull
structures.
This
feature
constitutes
broad
spectral
band
with
full
width
at
half-maximum
up
175
nm,
providing
select
different
channels
detection
imaging.
Moreover,
deoxygenation
is
shown
promote
aggregation,
leading
significantly
strengthened
enables
high-contrast
hypoxia
probing
effect.
These
results
not
only
reveal
new
photophysical
mechanisms
organic
molecules
but
also
expand
functionality
luminescent
materials
field.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Aug. 30, 2024
Abstract
Light‐emitting
organic
small
molecules
require
high
internal
and
external
quantum
efficiencies
with
excellent
radiative
characteristics
for
their
potential
application
in
next‐generation
optoelectronics.
Nonetheless,
achieving
efficiency
solid
states
remains
a
formidable
challenge,
primarily
owing
to
the
non‐radiative
processes.
Therefore,
conformational
modulation
is
pivotal
influencing
emission
properties
mitigate
decay.
Notably,
modifying
intra‐
intermolecular
non‐covalent
interactions
(NCIs)
promising
strategy
that
can
simultaneously
realize
rigidity
stabilization
of
flexible
single
bonds,
thus
suppressing
reorganization
energy
associated
Consequently,
considerable
enhancement
attainable
through
adept
manipulation
NCIs,
corresponding
systems
ranging
from
multimolecular
networks
states.
This
review
systematically
summarizes
analyzes
influence
diverse
NCIs
efficient
light‐emitting
molecules.
The
effects
on
single‐and
multimolecular‐systems
are
discussed,
based
fundamentals
light
mechanism
correlation
between
molecular
design
photophysical
properties.
Additionally,
strategic
perspectives
provided
advancement
future
this
serves
as
comprehensive
library,
providing
an
up‐to‐date
overview
leveraging
Inorganic Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 18, 2025
Commercial
phosphines
and
phosphoniums
were
commonly
reported
to
have
unstable
triplet
dissipation
because
of
the
flexible
C-P
pyramidal
geometry,
resulting
in
extremely
weak
or
no
phosphorescence.
To
boost
populations
stability
by
restricting
molecular
motion
rebuilding
electronic
structures,
we
that
dual-ring-locking
strategy
could
enable
elevated
intersystem
crossing
(ISC)
radiation
for
rigid
benzo[b]phospholium
configuration,
exhibiting
intense
persistent
room
temperature
phosphorescence
(RTP)
poly(vinyl
alcohol)
(PVA).
Among
them,
dual-ring-locked
[P1]+[Cl]-
showed
near-ultraviolet
fluorescence
maximized
at
400
nm
dichloromethane
blue
RTP
emission
453
(Φphos
≈
12.4%,
τphos
>
1200
ms)
PVA
matrix.
In
contrast,
[P2]+[Cl]-
possessed
a
single
ring-locked
nucleus
had
red-shifted
<
1.8%,
=
74.2
ms).
Time-dependent
density
functional
theory
(TD-DFT)
disclosed
improved
spin-flipping
benefited
from
integrated
π-π*/n-π*
transition,
rational
split
energy,
excited
states.
The
impressive
OU-RTP
duration
function
as
an
afterglow
pattern
optical
encryption
emitting
layer
light-emitting
diode
(LED)
applications.
