ACS Omega,
Journal Year:
2024,
Volume and Issue:
9(52), P. 51652 - 51664
Published: Dec. 17, 2024
The
complex
formation
of
the
cationic
stilbene-type
photoswitch
CP
with
anionic
macrocycles
carboxylato-pillar[5]arene
(WP5)
and
carboxylato-pillar[6]arene
(WP6)
has
been
investigated
in
aqueous
solution
by
optical
spectroscopic,
NMR
isothermal
calorimetric
experiments
theoretical
calculations.
Subsequently,
photoisomerization
reactions
supramolecular
complexes
formed
have
studied.
consists
a
7-diethylamino-coumarin
fluorophore
an
N-methylpyridinium
unit,
which
are
connected
via
ethene
bridge.
trans
isomer
is
fluorescent,
its
cis
dark.
binding
constants
WP6
two
photoisomers
larger
2
orders
magnitude
than
those
respective
WP5,
trans-CP
forms
more
stable
individual
pillararenes
isomer.
As
shown
spectroscopic
measurements
calculations,
isomers
form
external
WP5
inclusion
WP6.
On
complexation
WP6,
quantum
yields
both
trans-to-cis
cis-to-trans
increase
significantly,
fluorescence
yield
also
enhanced.
These
changes
due
to
suppression
TICT
deactivation
process,
characteristic
7-dialkylamino-coumarin
derivatives.
Aggregate,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 16, 2025
ABSTRACT
Electronic
excited
state
in
molecular
aggregate
or
exciton
states
continue
to
attract
great
attention
due
the
increasing
demands
for
applications
of
optoelectronics
and
sensing
technology.
The
working
principle
behind
application
is
closely
related
structure
dynamic
processes
aggregate.
In
our
previous
review
article
(Aggregate
2021;
2:
e91),
we
focused
more
on
mechanism
aggregation‐induced
emission
process.
Here,
are
going
summarize
recent
progress
theoretical
investigations
effects
excitonic
coupling
(
J
)
intermolecular
charge
transfer
(CT)
processes.
These
general
missing
quantum
chemistry
studies.
We
will
first
present
a
novel
definition
coherence
length
which
can
bijective
relation
with
radiative
decay
rate
obviously
have
clarified
confusion
appeared
literature.
Then,
look
at
CT
effect
starting
from
simple
three‐state
model
coupled
chemical
calculation
dimer
focus
intensity
borrowing,
turn
H‐aggregate
into
emissive
when
electron
hole
integrals
possessing
same
sign
being
large
enough.
able
propose
descriptor
design
materials
possibly
both
high
photoluminescence
yield
carrier
mobility.
Finally,
introduce
work
modified
energy
gap
law
non‐radiative
aggregates.
found
there
exist
optimal
minimize
loss.
Advanced Science,
Journal Year:
2024,
Volume and Issue:
11(29)
Published: May 29, 2024
Abstract
Electronic
switches
have
been
considered
to
be
one
of
the
most
important
components
contemporary
electronic
circuits
for
processing
and
storing
digital
information.
Fabricating
functional
devices
with
building
blocks
atomic/molecular
can
greatly
promote
minimization
meet
requirement
high
integration.
This
review
highlights
key
developments
in
fabrication
application
molecular
switching
devices.
overview
offers
valuable
insights
into
mechanisms
under
various
stimuli,
emphasizing
structural
energy
state
changes
core
molecules.
Beyond
switches,
typical
individual
metal
atomic
are
further
introduced.
A
critical
discussion
main
challenges
realizing
developing
practical
molecular/atomic
is
provided.
These
analyses
summaries
will
contribute
a
comprehensive
understanding
switch
mechanisms,
providing
guidance
rational
design
nanoswitch
toward
applications.
Molecules,
Journal Year:
2024,
Volume and Issue:
29(1), P. 254 - 254
Published: Jan. 3, 2024
In
the
current
data
age,
fundamental
research
related
to
optical
applications
has
been
rapidly
developed.
Countless
new-born
materials
equipped
with
distinct
properties
have
widely
explored,
exhibiting
tremendous
values
in
practical
applications.
The
storage
technique
is
one
of
most
significant
topics
applications,
which
considered
as
prominent
solution
for
conquering
challenge
explosive
increase
mass
data,
achieve
long-life,
low-energy,
and
super
high-capacity
storage.
On
this
basis,
our
review
outlines
representative
reports
mainly
introducing
functional
systems
based
on
newly
established
applied
field.
According
material
categories,
are
divided
into
rare-earth
doped
nanoparticles,
graphene,
diarylethene.
terms
difference
structural
features
delicate
among
three
materials,
application
comprehensively
illustrated
review.
Meanwhile,
potential
opportunities
critical
challenges
also
discussed
detail.
Journal of Materials Chemistry C,
Journal Year:
2024,
Volume and Issue:
12(7), P. 2552 - 2560
Published: Jan. 1, 2024
A
general
asymmetric
design
strategy
for
the
construction
of
tetraarylethene-based
photoswitches
was
proposed,
which
can
improve
fatigue
resistance
and
easily
achieve
multicolor
photochromism
fluorescence
switching
photoswitches.
Journal of Materials Chemistry C,
Journal Year:
2024,
Volume and Issue:
12(26), P. 9477 - 9509
Published: Jan. 1, 2024
This
review
summarizes
the
reported
photochromic
properties
of
apatite
skeletal
structure
materials.
Apatite-type
PC
materials
exhibit
more
abundant
color
changes
and
absorption
bands
centers,
creating
new
substantial
opportunities
for
adjusting
optimizing
properties.
Chemical Science,
Journal Year:
2024,
Volume and Issue:
15(17), P. 6218 - 6228
Published: Jan. 1, 2024
Photoswitchable
fluorescent
nanoparticles
(PF
NPs)
are
an
emerging
type
of
optical
nanomaterial
with
distinct
photo-responsive
properties,
which
have
shown
promising
applications
in
diverse
fields
recently.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(44)
Published: July 3, 2024
Abstract
Synthetic
molecular
photoswitches
have
taken
center
stage
as
high‐precision
tools
to
introduce
light‐responsiveness
at
the
smallest
scales.
Today
they
are
found
in
all
areas
of
applied
chemistry,
covering
materials
research,
chemical
biology,
catalysis,
or
nanotechnology.
For
a
next
step
applicability
truly
orthogonal
photoswitching
is
highly
desirable
but
date
such
independent
addressability
different
remains
challenging.
Herein
we
present
first
example
all‐visible,
all‐light
responsive,
and
path‐
photoswitching.
By
combining
two
recently
developed
indigoid
‐
peri‐anthracenethioindigo
rhodanine‐based
chromophore
four‐state
system
established
each
state
can
be
accessed
high
yields
completely
independently
also
with
visible
light
irradiation
only.
The
four
states
give
rise
colors,
which
transferred
solid
polymer
matrix
yield
versatile
multi‐state
photochromic
material.
Further,
combination
fluorescent
dye
third
component
possible,
demonstrating
this
all‐photonic
logic
behavior
information
processing.
Abstract
Photochromic/thermochromic
materials
face
challenges
in
practical
applications
due
to
limited
stability
and
single‐mode
responses.
Herein,
a
strategy
is
presented
achieve
both
highly
stable
photochromism
thermochromism
single‐phase
Cs₂ZrCl₆
halide
perovskite
through
trap
energy
level
manipulation
via
Bi
3
⁺
doping
thermal
recrystallization.
Strikingly,
the
synthesis
of
this
allochroic
expeditious,
requiring
only
≈10
s
co‐precipitation
method.
creates
unique
defects
with
broad
depth
distribution,
resulting
photochromic
properties.
Upon
UV
irradiation
(254
or
365
nm),
color
Cs₂ZrCl₆:0.02Bi
changes
from
white
pink,
which
can
be
physically
visible
naked
eye
luminance
≈50
cd
m
−
2
maintained
>20
days
under
ambient
light.
Additionally,
thermochromic
response
observed,
photoluminescence
shifting
blue
cyan
after
being
kept
at
523
K,
associated
≈20
nm
redshift
emission
band.
These
dual
properties
enable
potential
use
for
multimodal
information
storage
advanced
anti‐counterfeiting
applications.
This
work
not
introduces
novel
capabilities
but
also
provides
new
insights
into
design
strategic
engineering.
Journal of Materials Chemistry C,
Journal Year:
2024,
Volume and Issue:
12(10), P. 3498 - 3505
Published: Jan. 1, 2024
A
molecular
design
strategy
that
significantly
improves
the
solid-state
fluorescence
efficiency
of
AIE-active
photoswitches
has
been
proposed,
in
which
heavy
atom
effect
sulfur
is
mitigated
by
introducing
a
thiophene
dioxide
moiety.
