Journal of the American Chemical Society,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 18, 2025
The
simultaneous
generation
and
stabilization
of
triplet
excitons
are
the
key
to
realizing
efficient
organic
room
temperature
phosphorescence
(RTP),
which
is
challenging
owing
obscure
mechanism
structure-property
relationships.
Herein,
a
strategy
lone-pair-mediated
multiple
through-space
interactions
(TSIs)
proposed
availably
induce
RTP.
By
incorporating
heteroatoms
facilitate
n-n
n-π
interactions,
lone
pairs
delocalized
throughout
structure,
resulting
in
dense
splitting
excited-state
energy
levels.
Thus,
more
matched
levels
with
small
gap
between
singlet
states
(ΔEST)
emerge,
intersystem
crossing
(ISC)
transition
channels
that
assist
generation.
strong
TSIs
also
effectively
rigidify
molecular
structures
thus
stabilize
for
radiation.
Furthermore,
manipulation
TSI
intensity
allows
efficiency
enhancement,
persistent
time
prolongation,
tolerance
high
temperatures
This
work
not
only
explores
fundamental
principle
RTP
from
new
view
but
provides
universal
ISC
promotion
triple
stabilization.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(18)
Published: Jan. 25, 2024
Abstract
Long‐lived
and
highly
efficient
room
temperature
phosphorescence
(RTP)
materials
are
in
high
demand
for
practical
applications
lighting
display,
security
signboards,
anti‐counterfeiting.
Achieving
RTP
aqueous
solutions,
near‐infrared
(NIR)
emission,
NIR‐excited
crucial
bio‐imaging,
but
these
goals
pose
significant
challenges.
Supramolecular
self‐assembly
provides
an
effective
strategy
to
address
the
above
problems.
This
review
focuses
on
recent
advances
enhancement
of
via
supramolecular
self‐assembly,
covering
four
key
aspects:
small
molecular
cocrystals,
macrocyclic
hosts
guests,
multi‐stage
self‐assembly.
not
only
highlights
progress
areas
also
underscores
prominent
challenges
associated
with
developing
materials.
The
resulting
strategies
development
high‐performance
discussed,
aiming
satisfy
biomedical
science.
Advanced Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 10, 2025
Abstract
X‐ray
induced
photodynamic
therapy
(X‐PDT)
leverages
penetrating
to
generate
singlet
oxygen
(
1
O
2
)
for
treating
deep‐seated
tumors.
However,
conventional
X‐PDT
typically
relies
on
heavy
metal
inorganic
scintillators
and
organic
photosensitizers
produce
,
which
presents
challenges
related
toxicity
energy
conversion
efficiency.
In
this
study,
highly
biocompatible
phosphorescent
nanoscintillators
based
hydrogen‐bonded
frameworks
(HOF)
are
designed
engineered,
termed
BPT‐HOF@PEG,
enhance
in
hepatocellular
carcinoma
(HCC)
treatment.
BPT‐HOF@PEG
functions
simultaneously
as
both
scintillator
photosensitizer,
effectively
absorbing
transferring
abundant
.
Both
vitro
vivo
investigations
demonstrate
that
internalized
efficiently
produces
significant
quantities
of
upon
irradiation.
Additionally,
exposure
directly
inflicts
DNA
damage,
the
synergistic
effects
these
mechanisms
result
pronounced
cell
death
substantial
tumor
growth
inhibition,
with
a
inhibition
rate
up
90.4%
assessments.
RNA
sequencing
analyses
reveal
induces
apoptosis
Hepa1‐6
cells
while
inhibiting
proliferation,
culminating
death.
Therefore,
work
highlights
considerable
potential
efficient
HOF
nanoscintillators‐based
promising
therapeutic
approach
HCC,
providing
effective
alternative
negligible
patients
unresectable
Angewandte Chemie International Edition,
Journal Year:
2023,
Volume and Issue:
62(45)
Published: Sept. 21, 2023
Room-temperature
phosphorescence
(RTP)
polymers
have
important
applications
for
biological
imaging,
oxygen
sensing,
data
encryption,
and
photodynamic
therapy.
Despite
the
many
advantages
polymeric
materials
offer
such
as
great
control
over
gas
permeability
processing
flexibility,
disorder
is
traditionally
considered
an
intrinsic
negative
impact
on
efficiency
embedded
RTP
luminophores,
various
allowed
thermal
motions
could
quench
emitting
states.
However,
we
propose
that
disorder-enabled
freedoms
of
microscopic
can
be
beneficial
charge-transfer-mediated
RTP,
which
facilitated
by
molecular
conformational
changes
among
different
electronic
transition
Using
"classic"
pyrene-aniline
exciplex
example,
demonstrate
mutual
enhancement
red/near-infrared
green
emissions
from
pyrene
aniline
moieties,
respectively,
upon
doping
polymer
with
trace
derivatives.
In
comparison,
a
pyrene-doped
crystal
formed
same
structure
exhibits
only
charge-transfer
fluorescence
no
red
or
observed,
suggesting
order
suppresses
channels.
The
proposed
polymerization
strategy
may
used
unified
method
to
generate
multi-emissive
vast
pool
known
unknown
exciplexes
complexes.
Angewandte Chemie International Edition,
Journal Year:
2023,
Volume and Issue:
63(2)
Published: Dec. 8, 2023
Abstract
Room‐temperature
phosphorescent
(RTP)
materials
have
great
potential
for
in
vivo
imaging
because
they
can
circumvent
the
autofluorescence
of
biological
tissues.
In
this
study,
a
class
organic‐doped
long‐wavelength
(≈600
nm)
RTP
with
benzo[c][1,2,5]
thiadiazole
as
guest
was
constructed.
Both
host
and
molecules
simple
structures
be
directly
purchased
commercially
at
low
cost.
Owing
to
long
phosphorescence
wavelength
doping
system,
it
exhibited
good
tissue
penetration
(10
mm).
Notably,
these
nanoparticles
were
successfully
used
image
atherosclerotic
plaques,
signal‐to‐background
ratio
(SBR)
44.52.
This
study
provides
new
approach
constructing
inexpensive
red
organic
method
cardiovascular
diseases
using
materials.
Advanced Materials,
Journal Year:
2023,
Volume and Issue:
36(15)
Published: Oct. 26, 2023
Metal-organic
hybrid
(MOH)
materials
with
room-temperature
phosphorescence
(RTP)
have
drawn
attention
in
recent
years
due
to
their
superior
RTP
properties
of
high
efficiency
and
ultralong
emission
lifetime.
Great
achievement
has
been
realized
developing
MOH
high-performance
RTP,
but
a
systematic
study
on
feature
is
lacking.
This
review
highlights
advances
metal-organic
materials.
The
molecular
packing,
the
photophysical
properties,
applications
are
discussed
detail.
can
be
divided
into
six
parts:
coordination
polymers,
frameworks
(MOFs),
metal-halide
hybrids,
organic
ionic
crystals,
organic-inorganic
perovskites.
These
successfully
applied
time-resolved
data
encryption,
fingerprint
recognition,
information
logic
gates,
X-ray
imaging,
photomemory.
not
only
provides
basic
principles
designing
also
propounds
future
research
prospects
hybrids.
offers
many
effective
strategies
for
hybrids
excellent
thus
satisfying
practical
applications.
Journal of Materials Chemistry A,
Journal Year:
2024,
Volume and Issue:
12(13), P. 7732 - 7741
Published: Jan. 1, 2024
The
present
study
showcases
two
Cd-based
MOFs
that
exhibit
potential
as
afterglow
probes
for
the
“turn
off”
and
on”
detection
of
Fe
3+
ions
NH
3
,
respectively.
Nature Communications,
Journal Year:
2024,
Volume and Issue:
15(1)
Published: May 2, 2024
Abstract
Organic
ultralong
room-temperature
phosphorescence
(RTP)
usually
emerges
instantly
and
immediately
decays
after
excitation
removal.
Here
we
report
a
new
delayed
RTP
that
is
postponed
by
dozens
of
milliseconds
removal
in
two
steps
including
an
initial
increase
intensity
followed
subsequent
decrease
intensity.
The
achieved
through
introduction
phosphines
into
carbazole
emitters.
In
contrast
to
the
rapid
energy
transfer
from
single-molecular
triplet
states
(T
1
)
stabilized
n
*)
instant
systems,
phosphine
groups
insert
their
intermediate
M
between
carbazole-originated
T
*
carbazole-phosphine
hybrids.
addition
markedly
increasing
emission
lifetimes
ten
folds,
since
→
transition
require
>30
milliseconds,
thereby
milliseconds.
character
hybrids
can
be
used
reveal
information
combining
RTP,
realizing
multi-level
time
resolution
for
advanced
information,
biological
optoelectronic
applications.
ACS Applied Materials & Interfaces,
Journal Year:
2023,
Volume and Issue:
15(47), P. 54732 - 54742
Published: Nov. 15, 2023
We
successfully
tune
ultralong
organic
room-temperature
phosphorescence
(UORTP)
by
a
simple
strategy
of
precisely
modifying
nitrogen
atoms
on
Phosphorescence
Units,
and
colorful
can
be
achieved.
for
the
first
time
investigate
structure-function
relationship
between
properties
molecular
structures
Units.
With
BCz
BCz-1
as
comparison,
eight
new
Units
were
synthesized
introducing
one
or
two
to
naphthalene
moiety.
For
all
10
their
in
PMMA
film
should
assigned
monomer
from
intrinsic
T1
decay.
series
I
(BCz,
NBCz-1,
NBCz-2,
NBCz-3,
NBCz-4,
NBCz-5,
NBCz-6),
atom
moiety
significantly
affect
effect
is
quite
complicated.
modification
inner
ring,
energy
level
NBCz-1
decreases,
red
shift
UORTP
occurs
while
NBCz-2
increases
blue
happens.
outer
no
color
change
observed
NBCz-3
but
lifetimes
vary
notably
due
different
intersystem
crossing
efficiencies;
site
approaches
central
five-member
levels
NBCz-5
NBCz-6
decrease,
shifts
dramatically.
II
2NBCz,
BCz-1,
2NBCz-1),
six-member
ring
reduces
excitons
leads
incredible
2NBCz
surprisingly
rise
2NBCz-1.
Under
condition
proper
sites,
it
true
that
more
additional
atoms,
red-shifted
phosphorescence.
This
study
may
expand
our
knowledge
lay
foundation
its
future
applications.
Advanced Optical Materials,
Journal Year:
2023,
Volume and Issue:
12(5)
Published: Sept. 13, 2023
Abstract
The
development
of
highly
stable
and
ultra‐long
organic
room
temperature
phosphorescence
(RTP)
materials
holds
great
promise
for
applications
in
anti‐counterfeiting
information
protection.
To
improve
the
encryption
level,
exploration
with
tunable
afterglow
features
is
urgent
need.
Hereby,
a
series
long‐lived
systems
RTP
developed
by
incorporating
benzocarbazole
derivatives
into
polyvinyl
alcohol
(PVA)
matrix
(BCz@PVA).
Notably,
BCz@PVA
film
exhibits
outstanding
behavior
an
ultralong
lifetime
(τ
p
)
2.09
s,
high
quantum
yield
(Φ
46.335%,
duration
15
s.
Moreover,
maintains
excellent
performance
even
after
being
placed
ambient
conditions
60
days.
Theoretical
calculations
reveal
that
attributed
to
stronger
intermolecular
interactions,
smaller
energy
gap
(ΔE
st
between
singlet
triplet
states,
molecular
stacking
mode.
Furthermore,
color‐tunable
photoluminescence
(PL),
distinct
τ
,
are
successfully
achieved
adjusting
position
Br
substituent
on
benzene
ring.
Based
their
diverse
performances
stability,
corresponding
provides
successful
application
multi‐level
high‐security
