Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(29)
Published: May 7, 2024
Responsive
organic
luminescent
aggregates
have
a
wide
range
of
application
fields,
but
currently
there
is
still
lack
reasonable
molecular
design
strategies.
Introducing
ion-π
interactions
into
molecules
can
effectively
alter
their
properties.
However,
current
research
typically
focuses
on
ion
localization
at
conjugated
groups
with
the
strong
interaction
forces.
In
this
work,
we
introduce
flexible
alkoxy
chain
spacers
between
fluorescent
and
sites,
then
adjust
fluorescence
performance
molecule
by
changing
strength
interactions.
Bromine
ion-based
exhibit
high
stable
quantum
yields
in
crystals
amorphous
powders
under
external
stimuli.
Hexafluorophosphate
weak
yield
very
low
powders,
showing
variable
intensities
This
demonstrates
new
class
responsive
solid-state
materials.
Nature Communications,
Journal Year:
2024,
Volume and Issue:
15(1)
Published: July 31, 2024
Abstract
Light-driven
rotary
molecular
motors
are
among
the
most
promising
classes
of
responsive
machines
and
take
advantage
their
intrinsic
chirality
which
governs
unidirectional
rotation.
As
a
consequence
dynamic
function,
they
receive
considerable
interest
in
areas
supramolecular
chemistry,
asymmetric
catalysis
materials.
Among
emerging
photochromic
molecules,
multistate
first-generation
driven
by
benign
visible
light
remain
unexplored,
limits
exploitation
full
potential
these
mechanical
light-powered
systems.
Herein,
we
describe
series
all-visible-light-driven
based
on
salicylidene
Schiff
base
functionality.
Remarkable
redshifts
up
to
100
nm
absorption
achieved
compared
conventional
motor
structures.
Taking
scaffolds,
adaptive
behaviour
is
found
as
well,
application
photoluminescence
demonstrated.
These
functional
visible-light-responsive
will
likely
stimulate
design
synthesis
more
sophisticated
nanomachinery
with
myriad
future
applications
powering
Chemical Communications,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
Charge-assisted
photochromic
iHOF-51
enables
fast
stimulus-responsive
behavior
through
photogenerated
anionic
radicals.
Time-dependent
photochromism
in
the
powder
form
and
FRET-based
photoluminescence
composite
membranes
are
observed.
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: May 2, 2025
Abstract
The
molecular
aggregation
state
of
organic
hole
conductors
greatly
influences
charge
collection
perovskite
solar
cells
(PSCs).
In
this
study,
we
optimize
the
core/periphery
steric
Cl‐substituent
(W1,
W2,
W3)
and
regulate
by
packing
interactions.
It
is
demonstrated
that
W1
with
Cl
core‐substituent
exhibits
enhanced
crystallization
strong
intermolecular
interactions
in
contrast
to
W2
sidechain‐substituent.
Conversely,
W3
substituent
at
both
core
sidechain
results
most
unfavorable
stacking.
high
mobility
reinforced
interfacial
bonding,
achieving
a
remarkable
photovoltaic
efficiency
24.7%,
outperforming
other
two
(W2's
23.9%
W3's
20.3%).
Furthermore,
W1‐
W2‐PSCs
retain
95.3%
87.2%
their
initial
after
1,000
hours
maximum
power
point
tracking
(MPPT),
respectively.
This
work
provides
fundamental
insights
into
Cl‐substituent‐induced
behavior
offers
delicate
approach
for
designing
high‐performance
semiconductors.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(48)
Published: Aug. 16, 2024
Abstract
Poor
operational
stability
is
a
crucial
factor
limiting
the
further
application
of
perovskite
solar
cells
(PSCs).
Organic
semiconductor
layers
can
be
powerful
means
for
reinforcing
interfaces
and
inhibiting
ion
migration.
Herein,
two
hole‐transporting
molecules,
pDPA‐SFX
mDPA‐SFX,
are
synthesized
with
tuned
substituent
connection
sites.
The
meta
‐substituted
mDPA‐SFX
results
in
larger
dipole
moment,
more
ordered
packing,
better
charge
mobility
than
pDPA‐SFX,
accompanying
strong
interface
bonding
on
surfaces
suppressed
motion
as
well.
Importantly,
mDPA‐SFX‐based
PSCs
exhibit
an
efficiency
that
has
significantly
increased
from
22.5
%
to
24.8
module‐based
19.26
active
area
12.95
cm
2
.
corresponding
cell
retain
94.8
its
initial
at
maximum
power
point
tracking
(MPPT)
after
1,000
h
(
T
95
=1,000
h).
MPPT
80
lifetime
long
2,238
h.
This
work
illustrates
small
degree
structural
variation
organic
compounds
leaves
considerable
room
developing
new
HTMs
light
stable
PSCs.
Angewandte Chemie,
Journal Year:
2024,
Volume and Issue:
136(48)
Published: Aug. 16, 2024
Abstract
Poor
operational
stability
is
a
crucial
factor
limiting
the
further
application
of
perovskite
solar
cells
(PSCs).
Organic
semiconductor
layers
can
be
powerful
means
for
reinforcing
interfaces
and
inhibiting
ion
migration.
Herein,
two
hole‐transporting
molecules,
pDPA‐SFX
mDPA‐SFX,
are
synthesized
with
tuned
substituent
connection
sites.
The
meta
‐substituted
mDPA‐SFX
results
in
larger
dipole
moment,
more
ordered
packing,
better
charge
mobility
than
pDPA‐SFX,
accompanying
strong
interface
bonding
on
surfaces
suppressed
motion
as
well.
Importantly,
mDPA‐SFX‐based
PSCs
exhibit
an
efficiency
that
has
significantly
increased
from
22.5
%
to
24.8
module‐based
19.26
active
area
12.95
cm
2
.
corresponding
cell
retain
94.8
its
initial
at
maximum
power
point
tracking
(MPPT)
after
1,000
h
(
T
95
=1,000
h).
MPPT
80
lifetime
long
2,238
h.
This
work
illustrates
small
degree
structural
variation
organic
compounds
leaves
considerable
room
developing
new
HTMs
light
stable
PSCs.
