Journal of Materials Chemistry C,
Journal Year:
2021,
Volume and Issue:
9(39), P. 13557 - 13583
Published: Jan. 1, 2021
We
present
a
review
of
the
field
high-throughput
virtual
screening
for
organic
electronics
materials
focusing
on
sequence
methodological
choices
that
determine
each
protocol.
These
are
in
all
screenings
and
addressing
them
systematically
will
lead
to
optimised
workflows
improve
their
applicability.
consider
range
properties
can
be
computed
illustrate
how
accuracy
determined
depending
quality
size
experimental
datasets.
The
approaches
generate
candidates
also
extremely
varied
relative
strengths
weaknesses
discussed.
analysis
is
almost
never
limited
identification
top
often
new
patterns
structure-property
relations
most
interesting
findings
such
searches.
reveals
very
dynamic
constantly
adapting
match
an
evolving
landscape
applications,
methodologies
Chemistry of Materials,
Journal Year:
2021,
Volume and Issue:
33(18), P. 7160 - 7184
Published: Sept. 15, 2021
Organic
luminescent
materials
have
attracted
significant
attention
in
the
past
few
years
due
to
their
fascinating
photophysical
properties.
Implementing
these
emissive
organic
compounds
is
now
being
actively
pursued
many
applications
solution
(i.e.,
sensors,
bioimaging)
or
solid
forms
optoelectronic
devices
data
encryption).
Despite
advances
development
of
compounds,
there
has
been
an
increasing
quest
decade
for
where
emission
preserved
both
states,
dual-state
(DSE).
These
are
expected
detonate
a
myriad
future.
On
this
nascent
topic,
work
addresses
several
factors
that
increase
probability
obtaining
property
based
on
precedent
reports
showing
phenomenon.
Therefore,
review
identifies
and
organizes
different
structural
characteristics
useful
obtain
compounds.
In
addition,
it
devised
motivate
discussion
science
community
hopefully
incentivize
efforts
research
groups
around
world
toward
synthesis
new
emitters.
Chemical Reviews,
Journal Year:
2022,
Volume and Issue:
122(9), P. 8487 - 8593
Published: March 17, 2022
The
exciton,
an
excited
electron-hole
pair
bound
by
Coulomb
attraction,
plays
a
key
role
in
photophysics
of
organic
molecules
and
drives
practically
important
phenomena
such
as
photoinduced
mechanical
motions
molecule,
photochemical
conversions,
energy
transfer,
generation
free
charge
carriers,
etc.
Its
behavior
extended
π-conjugated
disordered
films
is
very
different
rich
compared
with
exciton
inorganic
semiconductor
crystals.
Due
to
the
high
degree
variability
systems
themselves,
not
only
exerts
changes
on
that
carry
it
but
undergoes
its
own
during
all
phases
lifetime,
is,
birth,
conversion
transport,
decay.
goal
this
review
give
systematic
comprehensive
view
molecular
assemblies
at
evolution
emphasis
rates
typical
for
dynamic
picture
various
consequences
above
dynamics.
To
uncover
variety
behavior,
details
formation,
conversion,
direct
reverse
intersystem
crossing,
radiative
nonradiative
decay
are
considered
systems,
where
these
processes
lead
or
influenced
static
disorder,
distribution
symmetry
breaking,
reactions,
electron
proton
structural
rearrangements,
coupling
vibrations
intermediate
particles,
dissociation
annihilation
well.
Advanced Optical Materials,
Journal Year:
2021,
Volume and Issue:
9(20)
Published: July 3, 2021
Abstract
Recently,
luminophores
showing
efficient
room‐temperature
phosphorescence
(RTP)
have
gained
tremendous
interest
due
to
their
numerous
applications.
However,
most
phosphors
are
derived
from
transition
metal
complexes
because
of
intrinsic
fast
intersystem
crossing
(ISC)
induced
by
strong
spin–orbit
coupling
(SOC)
constants
the
heavy
metal.
Metal‐free
RTP
materials
rare
and
become
a
promising
field
they
inexpensive
environmentally
friendly.
This
review
summarizes
organic
molecular
with
long
triplet
lifetimes
at
room
temperature
perspective
whether
stem
or
multi‐component
system.
Among
purely
phosphors,
heteroatoms
usually
introduced
into
backbone
in
order
boost
singlet–triplet
ISC
rate
constant.
In
systems,
useful
strategies
such
as
host–guest,
polymer
matrix,
copolymerization,
supramolecular
assembly
provide
rigid
matrix
restrict
nonradiative
pathways
thus
realizing
ultralong
RTP.
Molecules,
Journal Year:
2022,
Volume and Issue:
27(8), P. 2443 - 2443
Published: April 10, 2022
Dual-state
emissive
(DSE)
fluorophores
are
organic
dyes
displaying
fluorescence
emission
both
in
dilute
and
concentrated
solution
the
solid-state,
as
amorphous,
single
crystal,
polycrystalline
samples
or
thin
films.
This
comes
contrast
to
vast
majority
of
fluorescent
which
typically
show
intense
but
quenched
media
solid-state
owing
π-stacking
interactions;
a
well-known
phenomenon
called
aggregation-caused
quenching
(ACQ).
On
contrary,
molecular
rotors
with
significant
number
free
rotations
have
been
engineered
strong
aggregated-state
thanks
restriction
intramolecular
motions.
is
concept
aggregation-induced
(AIE).
DSE
far
less
explored
despite
fact
that
they
at
crossroad
ACQ
AIE
phenomena
allow
targeting
applications
(bio-conjugation,
sensing,
imaging)
(organic
electronics,
data
encryption,
lasing,
luminescent
displays).
Excited-State
Intramolecular
Proton
Transfer
(ESIPT)
particularly
suitable
engineer
dyes.
Indeed,
ESIPT
fluorescence,
relies
on
phototautomerism
between
normal
tautomeric
species,
characterized
by
along
large
Stokes’
shift,
an
enhanced
photostability
sensitivity
close
environment,
feature
prone
be
used
bio-sensing.
A
drawback
needs
overcome
their
weak
intensity
solution,
detrimental
motions
excited-state.
Several
strategies
proposed
regard.
In
past
few
years,
growing
examples
DSE-ESIPT
indeed
emerged
literature,
enriching
database
such
attractive
review
aims
brief
concise
overview
exploitation
luminescence
for
optimization
properties.
perspective,
synergistic
approach
synthesis,
spectroscopy
ab
initio
calculations
has
proven
efficient
tool
construction
fluorophores.
Nature Communications,
Journal Year:
2023,
Volume and Issue:
14(1)
Published: April 6, 2023
Abstract
Perylene
bisimide
(PBI)
dyes
are
known
as
red,
maroon
and
black
pigments,
whose
colors
depend
on
the
close
π−π
stacking
arrangement.
However,
contrary
to
luminescent
monomers,
deep-red
PBI
pigments
commonly
non-
or
only
weakly
fluorescent
due
(multiple)
quenching
pathways.
Here,
we
introduce
N
-alkoxybenzyl
substituted
PBIs
that
contain
π
arrangement
(exhibiting
d
≈
3.5
Å,
longitudinal
transversal
displacements
of
3.1
Å
1.3
Å);
however,
they
afford
emitters
with
solid-state
fluorescence
quantum
yields
(
Φ
F
)
up
60%.
Systematic
photophysical
computational
studies
in
solution
solid
state
reveal
a
sensitive
interconversion
PBI-centred
locally
excited
charge
transfer
state,
which
depends
dihedral
angle
θ
between
benzyl
alkoxy
groups.
This
effectively
controls
emission
process,
enables
high
by
circumventing
common
pathways
observed
for
perylene
analogues.
Chemical Reviews,
Journal Year:
2024,
Volume and Issue:
124(9), P. 5930 - 6050
Published: April 30, 2024
Since
the
last
century,
we
have
witnessed
development
of
molecular
magnetism
which
deals
with
magnetic
materials
based
on
species,
i.e.,
organic
radicals
and
metal
complexes.
Among
them,
broadest
attention
was
devoted
to
molecule-based
ferro-/ferrimagnets,
spin
transition
materials,
including
those
exploring
electron
transfer,
nanomagnets,
such
as
single-molecule
magnets
(SMMs),
qubits,
stimuli-responsive
materials.
Their
physical
properties
open
application
horizons
in
sensors,
data
storage,
spintronics,
quantum
computation.
It
found
that
various
optical
phenomena,
thermochromism,
photoswitching
characteristics,
luminescence,
nonlinear
chiroptical
effects,
well
responsivity
external
stimuli,
can
be
implemented
into
Moreover,
fruitful
interactions
these
effects
provide
new
cross-effects
multifunctionality,
enriching
applications
optical,
electronic,
devices.
This
Review
aims
show
scope
phenomena
generated
recent
advances
areas
high-temperature
photomagnetism,
thermometry
utilizing
SMMs,
addressability
magneto-chiral
dichroism,
opto-magneto-electric
multifunctionality.
These
findings
are
discussed
context
types
accessible
for
classes
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(12)
Published: Jan. 26, 2024
Abstract
Purely
organic
materials
exhibiting
room
temperature
phosphorescence
(RTP)
are
promising
candidates
for
oxygen
sensors
and
information
encryption
owing
to
their
cost‐effective
environmentally
friendly
nature.
Herein,
we
report
a
bimolecular
RTP
system
where
DTBU
acts
as
the
guest
TBBU
serves
host.
In
contrast
previously
reported
results,
find
that
both
pure
do
not
exhibit
in
solid
state
even
under
N
2
atmosphere.
A
DTBU/TBBU
with
low
doping
ratio
(0.1
mol
%)
exhibits
persistent
yellowish‐green
afterglow
lifetime
of
340
ms
is
highly
sensitive
oxygen.
higher
(10
maintains
179
air.
Applications
at
varied
ratios
sensing
demonstrated.
We
propose
T
1
an
energy
transfer
intermediate
between
n
DTBU,
ultimately
leading
generation
RTP.
Overall,
this
work
demonstrates
critical
importance
material
purity
design
systems,
how
understanding
host–guest
enables
photophysical
properties
be
precisely
tuned.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(18)
Published: Jan. 25, 2024
Abstract
Organic
phosphorescent
scintillating
materials
have
shown
great
potential
for
applications
in
radiography
and
radiation
detection
due
to
their
efficient
utilization
of
excitons.
However,
revealing
the
relationship
between
molecule
stacking
radioluminescence
scintillators
is
still
challenging.
This
study
reports
on
two
phenothiazine
derivatives
with
polymorphism‐dependent
phosphorescence
radioluminescence.
The
experiments
reveal
that
significantly
affects
non‐radiation
decay
triplet
excitons
scintillators,
which
further
determines
scintillation
performance
under
X‐ray
irradiation.
These
exhibit
high
radio
stability
a
low
limit
278
nGys
−1
.
Additionally,
application
these
radiography,
based
excited
properties,
demonstrated.
findings
provide
guideline
obtaining
high‐performance
by
shedding
light
effect
crystal
packing
organic
molecules.
Journal of Materials Chemistry C,
Journal Year:
2024,
Volume and Issue:
12(6), P. 1923 - 1944
Published: Jan. 1, 2024
Carbazole–cyanostilbene
conjugates
exhibit
promising
optical
properties,
including
AIE
and
MFC.
This
review
explores
their
diverse
applications
across
various
fields,
highlighting
unique
characteristics
potential
impact.