Cyclometalated binuclear platinum(II) complexes with an embedded D-A ligand as efficient phosphors for NIR-OLEDs
Dyes and Pigments,
Год журнала:
2025,
Номер
unknown, С. 112731 - 112731
Опубликована: Фев. 1, 2025
Язык: Английский
High circularly polarized luminescence based on hydrogen-bonding columnar mesophase of an AIE-active mesogen with stronger D-A structure
Journal of Molecular Liquids,
Год журнала:
2025,
Номер
unknown, С. 127323 - 127323
Опубликована: Март 1, 2025
Язык: Английский
Delayed Fluorescence and Amplified Chirality via Modified Substitution Position for Deep-red Circularly Polarized Organic Light Emitting-diodes
Опубликована: Май 14, 2024
Developing
easily
accessible
deep-red/near-infrared
circularly
polarized
emitters
for
practical
organic
light-emitting
diodes
remains
a
significant
challenge.
Here,
strategy
has
been
proposed
developing
deep-red
delayed
fluorescent
based
on
novel
chiral
acceptor
platform.
By
changing
triphenylamine
(TPA)
substitution
position
from
para
to
meta,
R/S-M-TBBTCN
demonstrated
thermally
activated
fluorescence
(TADF)
properties
with
lifetime
of
6.6
μs
that
R/S-P-TBBTCN
doesn’t
have.
Furthermore,
showed
20
nm
red-shift
in
emission
and
10-fold
enhancement
asymmetry
factor
(glum),
compared
R/S-P-TBBTCN.
The
solution-processed
nondoped
(CP-OLEDs)
R-M-TBBTCN
display
2.2%
external
quantum
efficiency.
Язык: Английский
Novel AIE liquid crystals with high CPL-active bearing multiple dodecyl/cholesterol-decorated R-BINOL-cyanostilbene
Journal of Molecular Structure,
Год журнала:
2024,
Номер
1320, С. 139726 - 139726
Опубликована: Авг. 22, 2024
Язык: Английский
有机近红外圆偏振发光材料研究进展
Jianxun Liu,
Ning Liang,
Yansong Feng
и другие.
Scientia Sinica Chimica,
Год журнала:
2024,
Номер
54(8), С. 1277 - 1288
Опубликована: Авг. 1, 2024
Thermally Activated Delayed Fluorescence Dye‐Sensitized Down‐Conversion Nanoparticles for Near‐Infrared Luminescence Enhancement
Advanced Optical Materials,
Год журнала:
2024,
Номер
13(1)
Опубликована: Сен. 24, 2024
Abstract
Dye‐sensitized
down‐conversion
nanoparticles
(DCNPs)
can
significantly
enhance
photon
absorption,
bridging
the
gap
of
narrow
and
weak
absorption
cross‐section
lanthanide
(Ln)
ions,
thus
fundamentally
prompting
their
near‐infrared
(NIR)
emission.
However,
ideal
strategy
for
utilization
both
singlet
triplet
energy
dyes
is
hindered
by
nanostructures
dependence
on
heavy
atom
effect.
Herein,
thermally
activated
delayed
fluorescence
(TADF)
dye
utilized
with
a
small
singlet‐triplet
as
antenna,
achieving
733
fold
emission
enhancement.
This
facilitates
efficient
intersystem
crossing
(ISC)
reverse
(RISC)
processes,
enabling
effective
transfer
from
(S
1
)
(T
excitons
to
emitted
levels
Er
3+
.
Combining
highly
Erbium‐doped
nanoparticles,
water‐dispersed
AD‐sensitized
system
shows
excellent
hydrodynamic
stability
photostability.
innovative
approach
marks
first
report
TADF
dye‐sensitized
Ln
nanosystems,
offering
new
direction
photo
conversion
technology.
Язык: Английский