ACS Applied Optical Materials,
Journal Year:
2024,
Volume and Issue:
2(11), P. 2221 - 2228
Published: Nov. 11, 2024
An
unsymmetrical
perylene
diester
imide
(PEIST),
with
flexible
chains
connected
through
and
ester
functionalities,
was
prepared
microwave-assisted
synthesis.
This
compound
displayed
a
remarkable
fluorescence
quantum
yield
of
87%
an
exceptional
performance
in
host–guest
OLED
by
doping
CBP
at
0.5
wt
%
concentration,
providing
EQEmax
5.4%
complemented
brightness
4265
cd/m2.
Dalton Transactions,
Journal Year:
2024,
Volume and Issue:
53(36), P. 15164 - 15175
Published: Jan. 1, 2024
A
set
of
ferrocenyl-functionalized
perylenediimide
(PDI)
compounds
and
their
1,1,4,4-tetracyanobuta-1,3-diene
(TCBD)
derivatives
1-5
were
designed
synthesized
using
palladium-catalyzed
Sonogashira
cross-coupling,
followed
by
a
thermally
activated
[2
+
2]
cycloaddition-retroelectrocyclization
[CA-RE]
reaction
with
1,1,2,2-tetracyanoethylene
(TCNE)
acceptor
in
good
yields.
The
TCBD
group
works
as
an
acceptor,
whereas
the
ferrocenyl
acts
donor
at
central
PDI
core.
effects
varying
number
TCNE
groups
on
photophysical,
thermal,
electrochemical,
spectroelectrochemical
properties
studied.
di-substituted
3,
4,
5
exhibit
bathochromic
shifts
absorption
spectra
compared
to
1
2,
attributed
extended
π-conjugation.
electrochemical
analysis
shows
multiple
reduction
waves
low
potential
region
due
presence
units.
Spectroelectrochemical
studies
performed,
showing
that
upon
applying
redox
potentials,
shifted
from
visible
near-infrared
(NIR)
region.
Computational
calculations
indicate
HOMO,
electron
density
is
localized
ferrocene
unit,
while
LUMO,
it
distributed
over
PDI-TCBD
indicating
strong
D-A
interaction.
Sustainability,
Journal Year:
2024,
Volume and Issue:
16(3), P. 1145 - 1145
Published: Jan. 29, 2024
Recognizing
the
significance
of
solar
energy
as
a
vital
renewable
source
in
building
envelope
design
is
becoming
more
and
important
needs
urgent
attention.
Exploring
adaptation
strategies
found
plants
offers
wide
range
effective
possibilities
that
can
substantially
improve
performance.
Thus,
integrating
technologies
with
biomimetic
adaptive
solutions
could
establish
suitable
combination
towards
sustainable
design.
In
this
context,
study
follows
an
interdisciplinary
approach
to
provide
link
between
plants’
strategies,
integrated
photovoltaics
To
do
so,
framework
has
been
presented
using
data
synthesis
classification
support
potential
integration
three
photovoltaic
(PV)
plant-inspired
design,
facilitating
harmonizing
application
buildings.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Aug. 2, 2024
Perylene
diimide
(PDI)
dimers
and
higher
aggregates
are
key
components
in
organic
molecular
photonics
photovoltaic
devices,
supporting
singlet
fission
symmetry
breaking
charge
separation.
Detailed
understanding
of
their
excited
states
is
thus
important.
This
has
proven
challenging
because
interchromophoric
coupling
a
strong
function
dimer
architecture.
Recently,
macrocyclic
PDI
was
reported
which
excitonic
could
be
turned
on
off
simply
by
changing
the
solvent.
presents
useful
case
where
modified
without
synthetic
changes
to
tune
supramolecular
structure.
Here
we
present
detailed
study
solvent
dependent
state
dynamics
this
means
coherent
multidimensional
spectroscopy.
Spectral
analysis
resolves
different
strengths,
consistent
with
conformation.
The
strongly
coupled
conformer
forms
an
excimer
within
300
fs.
low-frequency
Raman
active
modes
recovered
from
two-dimensional
electronic
spectra
reveal
frequencies
characteristic
exciton
coupling.
These
assigned
modulating
corresponding
DFT
calculations.
Further
reveals
time
frequency
during
formation.
Analysis
"beatmaps"
features
not
predicted
displaced
harmonic
oscillator
model
vibronic
Angewandte Chemie,
Journal Year:
2024,
Volume and Issue:
136(39)
Published: Aug. 2, 2024
Abstract
Perylene
diimide
(PDI)
dimers
and
higher
aggregates
are
key
components
in
organic
molecular
photonics
photovoltaic
devices,
supporting
singlet
fission
symmetry
breaking
charge
separation.
Detailed
understanding
of
their
excited
states
is
thus
important.
This
has
proven
challenging
because
interchromophoric
coupling
a
strong
function
dimer
architecture.
Recently,
macrocyclic
PDI
was
reported
which
excitonic
could
be
turned
on
off
simply
by
changing
the
solvent.
presents
useful
case
where
modified
without
synthetic
changes
to
tune
supramolecular
structure.
Here
we
present
detailed
study
solvent
dependent
state
dynamics
this
means
coherent
multidimensional
spectroscopy.
Spectral
analysis
resolves
different
strengths,
consistent
with
conformation.
The
strongly
coupled
conformer
forms
an
excimer
within
300
fs.
low‐frequency
Raman
active
modes
recovered
from
two‐dimensional
electronic
spectra
reveal
frequencies
characteristic
exciton
coupling.
These
assigned
modulating
corresponding
DFT
calculations.
Further
reveals
time
frequency
during
formation.
Analysis
“beatmaps”
features
not
predicted
displaced
harmonic
oscillator
model
vibronic
Journal of Physics Materials,
Journal Year:
2023,
Volume and Issue:
6(4), P. 042002 - 042002
Published: Oct. 1, 2023
Abstract
For
over
a
decade,
donor-acceptor
blends
composed
of
organic
donors
and
fullerene
acceptors
dominated
indoor
solar
cells
(IOSCs).
Numerous
researchers
have
invested
time
to
conduct
extensive
studies
on
developing
new
donor
acceptor
materials,
interlayers,
minimizing
energy
losses,
enhancing
the
open-circuit
voltage
(
V
OC
)
through
device
material
engineering,
optimizing
architectures
achieve
highly
efficient,
environmentally
stable,
commercially
acceptable
IOSCs.
Through
such
efforts,
maximum
power
conversion
efficiencies
(PCEs)
IOSCs
surpassed
35%.
In
this
regard,
transition
from
non-fullerene
(NFA)
is
useful
strategy
for
PCEs
by
allowing
adjustment
levels
compatibility
with
light
spectrum
improving
photon
absorption
in
visible
range,
thereby
boosting
photocurrent
generation
.
NFA-based
photovoltaic
systems
recently
drawn
interest
scholarly
community.
To
compete
standard
batteries
used
Internet
Things
devices,
additional
research
needed
enhance
several
characteristics,
including
manufacturing
costs
longevity,
which
must
maintain
at
least
80%
their
initial
more
than
10
years.
Further
development
field
can
greatly
benefit
thorough
comprehensive
review
field.
Hence,
explores
recent
advances
based
NFAs.
First,
we
explain
methods
create
extremely
effective
IOSCs,
are
next
reviewed
discussed.
The
disadvantages
using
noted.
Then,
introduce
NFAs
explore
existing
subject.
Finally,
discuss
commercial
potential
future
outlook.
