Nature Communications,
Journal Year:
2024,
Volume and Issue:
15(1)
Published: May 23, 2024
Abstract
Endowing
the
widely-used
synthetic
polymer
nylon
with
high-performance
organic
room-temperature
phosphorescence
would
produce
advanced
materials
a
great
potential
for
applications
in
daily
life
and
industry.
One
key
to
achieving
this
goal
is
find
suitable
luminophore
that
can
access
triplet
excited
state
aid
of
matrix
by
controlling
matrix-luminophore
interaction.
Herein
we
report
highly-efficient
nylons
doping
cyano-substituted
benzimidazole
derivatives
into
6
matrix.
These
homogeneously
doped
show
ultralong
lifetimes
up
1.5
s
high
quantum
efficiency
48.3%
at
same
time.
The
synergistic
effect
homogeneous
dopant
distribution
via
hydrogen
bonding
interaction,
rigid
environment
polymer,
energy
transfer
between
luminophores
important
phosphorescence,
as
supported
combined
experimental
theoretical
results
control
compounds
various
polymeric
matrices.
One-dimensional
optical
fibers
are
prepared
from
these
transport
both
blue
fluorescent
green
afterglow
photonic
signals
across
millimeter
distance
without
significant
attenuation.
phosphorescent
dual
information
encryption
rewritable
recording
illustrated.
Chemical Communications,
Journal Year:
2024,
Volume and Issue:
60(70), P. 9328 - 9339
Published: Jan. 1, 2024
This
article
summarizes
the
potential
of
TPP
salts
in
tuning
RTP
properties
and
their
applications
multi-level
information
encryption,
high-level
anticounterfeiting
tags,
X-ray
scintillators.
The Journal of Physical Chemistry C,
Journal Year:
2025,
Volume and Issue:
129(9), P. 4565 - 4574
Published: Feb. 24, 2025
Materials
having
room-temperature
phosphorescence
(RTP)
are
in
limelight
due
to
their
advantageous
long
luminescence
lifespan
for
applications
optoelectronics,
bioimaging,
and
security
purpose
devices.
Development
of
metal-
halogen-free
organics
persistent
RTP
has
been
envisaged
through
aggregation,
heavy
atom
substitution,
host–guest
interactions,
etc.
In
this
article,
we
present
experimental
evidence
the
effect
H-bonding
other
nonbonding
interactions
on
types
emission
five
carbazole
derivatives.
An
unsubstituted
showed
only
fluorescence
powder
form,
while
N-aryl-substituted
carbonyl
nitrile
groups
(Benzal-CN-Cbz,
Acph-CN-Cbz,
Bnph-CN-Cbz)
dual
consisting
form
under
ambient
conditions.
Acph-CN-Cbz
longest
excited-state
lifetime
exceeding
1.2
ms
form.
Benzal-CN-Cbz,
Bnph-CN-Cbz
is
correlated
evident
from
single-crystal
analysis.
involving
group
extensive
π–π
caused
close
packing
solid
state
associated
with
long-lived
triplet
excited
RTP.
Further,
a
up
1.5
s
at
temperature
air
was
displayed
drop-casted
PVA
films.
To
best
our
knowledge,
few
organics,
without
halogen
atoms,
available
such
lifetimes.
