Materials,
Год журнала:
2024,
Номер
17(24), С. 6031 - 6031
Опубликована: Дек. 10, 2024
In
recent
years,
the
design
and
synthesis
of
high-performing
conjugated
materials
for
application
in
organic
photovoltaics
(OPVs)
have
achieved
lab-scale
devices
with
high
power
conversion
efficiency.
However,
most
are
still
synthesised
using
complex
multistep
procedures,
resulting
cost.
For
upscaling
OPVs,
it
is
also
important
to
focus
on
polymers
that
can
be
made
via
fewer
simple
synthetic
steps.
Therefore,
an
easily
amorphous
thiophene−quinoxaline
donor
polymer,
TQ1,
has
attracted
our
attention.
An
analogue,
TQ-EH
same
polymer
backbone
as
TQ1
but
short
branched
side-chains,
was
previously
reported
a
increased
crystallinity.
We
copolymers
varied
ratios
between
octyloxy
(2-ethylhexyl)oxy-substituted
quinoxaline
units
having
backbone,
aim
control
aggregation/crystallisation
behaviour
copolymers.
The
optical
properties,
glass
transition
temperatures
degree
crystallinity
new
were
systematically
examined
relation
their
copolymer
composition,
revealing
composition
used
fine-tune
these
properties
polymers.
addition,
multiple
sub-Tg
transitions
found
from
some
polymers,
which
not
commonly
or
clearly
seen
other
tested
photovoltaic
fullerene
derivative
acceptor,
achieving
slightly
higher
performances
compared
homopolymers.
This
work
demonstrates
side-chain
modification
by
copolymerisation
without
requiring
synthesis,
thereby
expanding
number
future
OPVs.
Polymers,
Год журнала:
2025,
Номер
17(10), С. 1316 - 1316
Опубликована: Май 12, 2025
Four
silane-containing
Schiff
base
oligomers
(o-SBNs
and
o-SBBs)
were
synthesized
by
high-temperature
polycondensation
reactions
using
silicon-based
dialdehydes
with
naphthalene
1,1'-binaphthalene
diamine
derivates.
The
samples
showed
a
moderate
solubility
in
common
organic
solvents,
where
the
incorporation
of
TPS
cores
into
o-SBN2
allows
formation
highly
soluble
material
non-polar
solvents
higher
molecular
weights
(11.58
kDa)
polydispersity.
All
oligo-SBs
displayed
high
thermal
resistance
(above
450
°C),
showing
enhanced
stability
for
TPS-containing
oligomers,
degradation
temperature
exceeding
530
°C
(o-SBB2)
Tg
values
due
to
aromatic
content
granted
moieties.
Optical
results
broad
absorption
emission
behavior
visible
spectrum,
ranging
from
deep
blue
(o-SBN1
o-SBB1)
(o-SBN2
o-SBB2).
structure
promotes
clear
bathochromic
shift
TPS-based
attributed
an
extended
π-conjugation
across
backbone.
In
addition,
π-π
overlap
effect
highlights
larger
Stokes
shifts
DMS
core
o-SN2
(133
nm)
o-SBB1
(195
nm).
found
be
wide-bandgap
materials,
Egopt
range
2.60
eV
3.67
eV.
weight
o-SBN2,
which
provided
π-conjugation,
lowest
value
(2.60
eV)
achieved.
DFT,
TDDFT
EDDM
calculations
performed
on
trimeric
oligo-SBs,
revealing
that
HOMOs
are
localized
amine-terminal
fraction,
while
LUMOs
over
terminal
aldehyde
groups.
These
findings
highlight
used
providing
valuable
insights
fine-tuning
physicochemical
properties
through
use
suitable
building
blocks
their
potential
as
optoelectronic
materials.
ACS Applied Materials & Interfaces,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 15, 2025
Facile
and
ecofriendly
syntheses
are
of
vital
importance
to
the
development
organic
semiconductors.
Herein,
we
present
a
straightforward
green
approach
for
preparing
high-performance
conjugated
polymers.
A
series
polymers
based
on
three
commercially
available
multifused
rings
benzodifuranedione
were
designed
synthesized
application
in
field-effect
transistors
(OFETs).
The
optical
properties,
molecular
orbital
energy
levels,
microstructures
systematically
investigated.
Polymer-based
devices
also
fabricated
electrical
properties
optimized
by
extending
conjugation
length,
varying
ring
structures,
enhancing
weight.
polymer
featuring
heptacyclic
arenes
(dithienothiophen[3,2-b]-pyrrolobenzothiadiazole)
achieved
maximum
mobility
exceeding
1.4
cm2
V-1
s-1
an
Ion/Ioff
ratio
surpassing
106.
This
work
presents
aldol
synthesis
strategy
preparation
semiconductor
materials.
Polymer Chemistry,
Год журнала:
2024,
Номер
unknown
Опубликована: Янв. 1, 2024
Palladium-NHCs
served
as
highly
efficient
precatalysts
for
SMPs
of
dichloroarenes
with
diarylboronic
acids,
affording
high
molecular
weight
CPs
yields.
Chemical Communications,
Год журнала:
2024,
Номер
60(78), С. 10870 - 10873
Опубликована: Янв. 1, 2024
Chiral
bifacial
indacenoditiophene-containing
π-conjugated
polymers
were
synthesized
and
exhibited
pronounced
spin
filtering
function
based
on
chirality
induced
selectivity.
Angewandte Chemie,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 11, 2024
Abstract
The
development
of
novel
ladder‐type
conjugated
molecules
is
crucial
for
advancing
supramolecular
chemistry
and
material
science.
In
this
study,
we
report
a
straightforward
synthesis
new
alternating
donor‐acceptor
(D‐A)
heteroarene,
FCDTDPP
,
demonstrate
its
application
as
photothermal
agent
imaging
cancer
therapy.
constructed
by
vinylene
bridge
between
cyclopentadithiophene
(D)
diketopyrrolopyrrole
(A)
through
intramolecular
Friedel–Crafts
type
reaction.
exhibits
unique
combination
good
molecular
planarity,
efficient
intra‐/intermolecular
mixed
D‐A
interactions,
local
aromaticity.
These
features
collectively
contribute
to
broad
intense
absorptions
with
narrow
band
gap
in
red
the
spectra,
coupled
multiple
vibrational
absorption
feature,
thereby
enhancing
non‐radiative
decay
process
resulting
conversion
property.
nanoparticles
(NPs)
exhibit
superior
performance
stability
under
660
nm
laser
irradiation.
Moreover,
vitro
studies
reveal
that
NPs
possess
excellent
biocompatibility,
low
cytotoxicity,
robust
therapeutic
efficacy,
finding
further
corroborated
preliminary
vivo
experiments
tumor‐bearing
mice.
This
work
charts
course
engineering
organic
systems,
propelling
relevant
research
forward.
Materials,
Год журнала:
2024,
Номер
17(24), С. 6031 - 6031
Опубликована: Дек. 10, 2024
In
recent
years,
the
design
and
synthesis
of
high-performing
conjugated
materials
for
application
in
organic
photovoltaics
(OPVs)
have
achieved
lab-scale
devices
with
high
power
conversion
efficiency.
However,
most
are
still
synthesised
using
complex
multistep
procedures,
resulting
cost.
For
upscaling
OPVs,
it
is
also
important
to
focus
on
polymers
that
can
be
made
via
fewer
simple
synthetic
steps.
Therefore,
an
easily
amorphous
thiophene−quinoxaline
donor
polymer,
TQ1,
has
attracted
our
attention.
An
analogue,
TQ-EH
same
polymer
backbone
as
TQ1
but
short
branched
side-chains,
was
previously
reported
a
increased
crystallinity.
We
copolymers
varied
ratios
between
octyloxy
(2-ethylhexyl)oxy-substituted
quinoxaline
units
having
backbone,
aim
control
aggregation/crystallisation
behaviour
copolymers.
The
optical
properties,
glass
transition
temperatures
degree
crystallinity
new
were
systematically
examined
relation
their
copolymer
composition,
revealing
composition
used
fine-tune
these
properties
polymers.
addition,
multiple
sub-Tg
transitions
found
from
some
polymers,
which
not
commonly
or
clearly
seen
other
tested
photovoltaic
fullerene
derivative
acceptor,
achieving
slightly
higher
performances
compared
homopolymers.
This
work
demonstrates
side-chain
modification
by
copolymerisation
without
requiring
synthesis,
thereby
expanding
number
future
OPVs.
