Angewandte Chemie,
Journal Year:
2022,
Volume and Issue:
135(8)
Published: Dec. 31, 2022
Abstract
Organic
single
crystals
(OSCs)
with
excellent
flexibility
and
unique
optical
properties
are
of
great
importance
due
to
their
broad
applicability
in
optical/optoelectronic
devices
sensors.
Nevertheless,
fabricating
flexible
OSCs
room‐temperature
phosphorescence
(RTP)
remains
a
challenge.
Herein,
we
propose
host–guest
doping
strategy
achieve
both
RTP
OSCs.
The
single‐stranded
crystal
is
highly
bendable
upon
external
force
application
can
immediately
return
its
original
straight
shape
after
removal
the
stress,
impressively
emitting
bright
deep‐red
phosphorescence.
theoretical
experimental
results
demonstrate
that
arises
from
Förster
resonance
energy
transfer
(FRET)
triphenylene
molecules
dopants.
This
conceptually
synthetically
simple
offers
universal
approach
for
preparation
RTP.
Advanced Materials,
Journal Year:
2023,
Volume and Issue:
35(26)
Published: March 25, 2023
Aiming
to
solve
the
trade-off
of
"room-temperature
phosphorescence
(RTP)-flexibility"
in
principle,
organic
RTP
crystals
with
elastic/plastic
deformation
are
realized.
These
properties
mainly
due
divisional
aggregation
structures
aromatics
and
alkoxy
chains,
can
be
modulated
by
controllable
molecular
configurations.
The
longest
lifetime
972.3
ms
is
achieved
as
highest
record
for
flexible
crystals.
Plastic
persistent
realized,
which
applied
into
biomedical
optical
technologies
afterglow
delivery.
Moreover,
relationship
among
deformation,
property,
aggregated
established.
determined
difference
interaction
energies
from
chains.
For
BP-OR
series
twisted
configurations,
chain
middle
length
favorable
while
strength
π-π
coupling
cruical
factor
property
Xan-OR
planar
skeletons.
A
new
way
promote
development
crystals,
modulation
well
rational
distribution
intermolecular
interactions,
explored.
Chemical Reviews,
Journal Year:
2023,
Volume and Issue:
123(24), P. 13966 - 14037
Published: Nov. 22, 2023
Phosphorescence,
characterized
by
luminescent
lifetimes
significantly
longer
than
that
of
biological
autofluorescence
under
ambient
environment,
is
great
value
for
biomedical
applications.
Academic
evidence
fluorescence
imaging
indicates
virtually
all
metrics
(sensitivity,
resolution,
and
penetration
depths)
are
improved
when
progressing
into
wavelength
regions,
especially
the
recently
reported
second
near-infrared
(NIR-II,
1000–1700
nm)
window.
Although
emission
probes
does
matter,
it
not
clear
whether
guideline
"the
wavelength,
better
effect"
still
suitable
developing
phosphorescent
probes.
For
tissue-specific
bioimaging,
long-lived
probes,
even
if
they
emit
visible
phosphorescence,
enable
accurate
visualization
large
deep
tissues.
studies
dealing
with
bioimaging
tiny
architectures
or
dynamic
physiopathological
activities,
prerequisite
rigorous
planning
long-wavelength
being
aware
cooperative
contribution
long
wavelengths
improving
spatiotemporal
depth,
sensitivity
bioimaging.
In
this
Review,
emerging
molecular
engineering
methods
room-temperature
phosphorescence
discussed
through
lens
photophysical
mechanisms.
We
highlight
roles
from
to
NIR-II
windows
toward
bioapplications.
To
appreciate
such
advances,
challenges
prospects
in
rapidly
growing
described.
Chemical Society Reviews,
Journal Year:
2024,
Volume and Issue:
53(8), P. 3687 - 3713
Published: Jan. 1, 2024
The
cornerstones
of
the
advancement
flexible
optoelectronics
are
design,
preparation,
and
utilization
novel
materials
with
favorable
mechanical
advanced
optoelectronic
properties.
Molecular
crystalline
have
emerged
as
a
class
underexplored
yet
promising
due
to
reduced
grain
boundaries
defects
anticipated
provide
enhanced
photoelectric
characteristics.
An
inherent
drawback
that
has
precluded
wider
implementation
molecular
crystals
thus
far,
however,
been
their
brittleness,
which
renders
them
incapable
ensuring
compliance
required
for
even
simple
elastic
or
plastic
deformation
device.
It
is
perplexing
despite
plethora
reports
in
meantime
become
available
underpinning
flexibility
crystals,
"discovery"
elastically
plastically
deformable
remains
limited
cases
serendipitous
laborious
trial-and-error
approaches,
situation
calls
systematic
thorough
assessment
these
properties
correlation
structure.
This
review
provides
comprehensive
concise
overview
current
understanding
origins
crystal
flexibility,
working
mechanisms
deformations
such
bending
behaviors,
insights
into
examples
specifically
concerning
photoelectronic
changes
occur
deformed
crystals.
We
hope
this
summary
will
reference
future
experimental
computational
efforts
aimed
towards
improving
behavior
properties,
ultimately
intending
advance
technology.
JACS Au,
Journal Year:
2024,
Volume and Issue:
4(2), P. 279 - 300
Published: Jan. 16, 2024
Flexible
crystals
have
gained
significant
attention
owing
to
their
remarkable
pliability,
plasticity,
and
adaptability,
making
them
highly
popular
in
various
research
application
fields.
The
main
challenges
developing
flexible
lie
the
rational
design,
preparation,
performance
optimization
of
such
crystals.
Therefore,
a
comprehensive
understanding
fundamental
origins
crystal
flexibility
is
crucial
for
establishing
evaluation
criteria
design
principles.
This
Perspective
offers
retrospective
analysis
development
over
past
two
decades.
It
summarizes
elastic
standards
possible
plastic
bending
mechanisms
tailored
diverse
analyzes
assessment
theoretical
basis
applicability.
Meanwhile,
compatibility
between
elasticity
plasticity
has
been
discussed,
unveiling
immense
prospects
elastic/plastic
applications
biomedicine,
electronic
devices,
optics.
Furthermore,
this
presents
state-of-the-art
experimental
avenues
methods
investigating
molecular
interactions
crystals,
which
vital
future
exploration
flexibility.
Aggregate,
Journal Year:
2024,
Volume and Issue:
5(3)
Published: Jan. 23, 2024
Abstract
The
emergence
of
flexible
organic
crystals
changed
the
perception
molecular
that
were
regarded
as
brittle
entities
over
a
long
period
time,
and
sparked
great
interest
in
exploring
mechanically
compliant
crystalline
materials
toward
next‐generation
smart
during
past
decade.
Schiff
base
compounds
are
considered
to
be
one
most
promising
candidates
for
owing
their
easy
synthesis,
high
yield,
stimuli
responsiveness
good
mechanical
properties.
This
paper
gives
an
overview
recent
development
(including
elastic
crystals,
plastic
integrating
elasticity
plasticity)
from
serendipitous
discovery
design
strategies
versatile
applications
such
responses,
optical
waveguides,
optoelectronic
devices,
biomimetic
soft
robots,
photonic
integrated
circuits.
Notably,
atomic
force
microscopy‐micromanipulation
technique
has
been
utilized
bring
multifunctional
macroscopic
level
microscopic
world.
Since
understanding
flexibility
at
through
crystal
engineering
can
assist
us
trace
down
structural
origin
properties,
we
focus
on
packing
structures
various
driven
by
non‐covalent
intermolecular
interactions
close
correlation
with
behaviors.
We
hope
information
given
here
will
help
novel
combined
other
unique
promote
further
research
into
area
applications.
Angewandte Chemie International Edition,
Journal Year:
2022,
Volume and Issue:
62(8)
Published: Dec. 31, 2022
Organic
single
crystals
(OSCs)
with
excellent
flexibility
and
unique
optical
properties
are
of
great
importance
due
to
their
broad
applicability
in
optical/optoelectronic
devices
sensors.
Nevertheless,
fabricating
flexible
OSCs
room-temperature
phosphorescence
(RTP)
remains
a
challenge.
Herein,
we
propose
host-guest
doping
strategy
achieve
both
RTP
OSCs.
The
single-stranded
crystal
is
highly
bendable
upon
external
force
application
can
immediately
return
its
original
straight
shape
after
removal
the
stress,
impressively
emitting
bright
deep-red
phosphorescence.
theoretical
experimental
results
demonstrate
that
arises
from
Förster
resonance
energy
transfer
(FRET)
triphenylene
molecules
dopants.
This
conceptually
synthetically
simple
offers
universal
approach
for
preparation
RTP.
Nature Communications,
Journal Year:
2022,
Volume and Issue:
13(1)
Published: Dec. 2, 2022
Developing
dynamic
organic
ultralong
room-temperature
phosphorescent
(URTP)
materials
is
of
practical
importance
in
various
applications
but
remains
a
challenge
due
to
the
difficulty
manipulating
aggregate
structures.
Herein,
we
report
dish-like
molecular
architecture
via
bottom-up
way,
featuring
guest-responsive
URTP.
Through
controlling
local
fragment
motions
architecture,
fascinating
URTP
performances
can
be
achieved
response
reversible
accommodation
guests,
including
solvents,
alkyl
bromides
and
even
carbon
dioxide.
Large-scale
regulations
phosphorescence
lifetime
(100-fold)
intensity
(10-fold)
realized,
presenting
maximum
efficiency
78.8%
483.1
ms,
respectively.
Moreover,
such
employed
for
temperature-dependent
multiple
information
encryption
visual
identification
linear
bromides.
This
work
not
only
deepen
our
understanding
construct
multifunctional
aggregates,
also
facilitate
design
high-performance
enrich
their
applications.
Journal of Materials Chemistry C,
Journal Year:
2023,
Volume and Issue:
11(13), P. 4375 - 4383
Published: Jan. 1, 2023
The
development
of
organic
crystals
responsive
to
multiple
external
stimuli
(mechanical
force,
light
and
heat)
as
potential
smart
materials
is
always
compelling
but
challenging.
Journal of Materials Chemistry A,
Journal Year:
2023,
Volume and Issue:
11(24), P. 12643 - 12658
Published: Jan. 1, 2023
We
provide
comprehensive
analyses
of
various
methods
to
regulate
the
electronic
structure
single-atom
catalysts,
which
have
shown
great
promise
for
optimizing
electrochemical
energy
conversion
efficiency.
