Macromolecular Rapid Communications,
Journal Year:
2023,
Volume and Issue:
44(24)
Published: Oct. 4, 2023
Circularly
polarized
luminescence
(CPL)
materials
with
clustering-triggered
emission
(CTE)
characteristic
have
gradually
attracted
attention
for
their
unique
photophysical
properties.
However,
the
majority
of
reported
clusteroluminogens
lack
chirality
and
exhibit
heterogeneity,
making
it
challenging
to
achieve
a
well-defined
helical
structure
necessary
efficient
CPL
high
dissymmetry
factor
(glum
).
In
this
paper,
chiral
liquid
crystals
are
constructed
obtain
CTE-based
glum
values.
Side
chain
crystal
polymer
PM6Chol
bearing
cholesterol
designed
synthesized.
PM6Chol-coated
film
thermal-treated
also
successfully
prepared
by
different
film-forming
methods.
Both
films
inherit
CTE
show
excitation
wavelength-dependent
luminescent
behavior.
two
phase
structures,
being
bilayer
smectic
C
an
achiral
A
phase.
Attributed
arrangement
cholesterol,
emits
values
up
1.0
×
10-1
.
For
film,
no
signal
is
detected
due
absence
structure.
shows
obvious
room-temperature
phosphorescence
2.0
s
afterglow
23.9
ms
lifetime.
Chemical Communications,
Journal Year:
2024,
Volume and Issue:
60(68), P. 9054 - 9057
Published: Jan. 1, 2024
The
supramolecular
chirality
of
a
co-assembly
pyridine-cholesterol
gelator
and
solvent
monomer
is
captured
via
in
situ
photopolymerization.
Doping
with
achiral
dyes
enables
the
creation
multi-color
CPL
polymer
films
inverted
handedness.
Small,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 17, 2024
Circularly
polarized
luminescence
(CPL)
plays
a
crucial
role
in
the
fields
of
optical
display
and
information
technology.
The
pursuit
high
dissymmetry
factors
(g
Macromolecular Rapid Communications,
Journal Year:
2023,
Volume and Issue:
44(15)
Published: May 10, 2023
In
this
work,
π-conjugated
block
copolymers
consisting
of
poly(phenyl
isocyanide)
(PPI)
and
polyfluorene
(PF)
segments
are
facilely
prepared
by
one-pot
sequential
polymerization
phenyl
isocyanide
(monomer
1)
7-bromo-9,9-dioctylfluorene-2-boronic
acid
pinacol
ester
2).
The
Pd(II)-terminated
PPI
is
first
via
polymerizing
monomer
1
catalyzed
with
alkyne-Pd(II)
complex
then
utilized
to
initiate
the
controlled
Suzuki
cross-coupling
2,
yielding
various
PPI-b-PF
possessing
molar
mass
narrow
dispersity.
Owing
helical
conformation
segment
structure
PF
segment,
present
distinctive
optical
property
fascinating
chiral
self-assembly
behavior.
During
process,
chirality
transfer
from
supramolecular
aggregates
nanofibers
occurs
afford
optically
active
high
activity.
Furthermore,
self-assembled
exhibit
excellent
circularly
polarized
luminescence
performance.
Macromolecular Rapid Communications,
Journal Year:
2023,
Volume and Issue:
44(24)
Published: Oct. 4, 2023
Circularly
polarized
luminescence
(CPL)
materials
with
clustering-triggered
emission
(CTE)
characteristic
have
gradually
attracted
attention
for
their
unique
photophysical
properties.
However,
the
majority
of
reported
clusteroluminogens
lack
chirality
and
exhibit
heterogeneity,
making
it
challenging
to
achieve
a
well-defined
helical
structure
necessary
efficient
CPL
high
dissymmetry
factor
(glum
).
In
this
paper,
chiral
liquid
crystals
are
constructed
obtain
CTE-based
glum
values.
Side
chain
crystal
polymer
PM6Chol
bearing
cholesterol
designed
synthesized.
PM6Chol-coated
film
thermal-treated
also
successfully
prepared
by
different
film-forming
methods.
Both
films
inherit
CTE
show
excitation
wavelength-dependent
luminescent
behavior.
two
phase
structures,
being
bilayer
smectic
C
an
achiral
A
phase.
Attributed
arrangement
cholesterol,
emits
values
up
1.0
×
10-1
.
For
film,
no
signal
is
detected
due
absence
structure.
shows
obvious
room-temperature
phosphorescence
2.0
s
afterglow
23.9
ms
lifetime.
