Chemistry - A European Journal,
Journal Year:
2023,
Volume and Issue:
29(57)
Published: July 8, 2023
Abstract
Organic
solar
cells
have
been
continuously
studied
and
developed
through
the
last
decades.
A
major
step
in
their
development
was
introduction
of
fused‐ring
non‐fullerene
electron
acceptors.
Yet,
beside
high
efficiency,
they
suffer
from
complex
synthesis
stability
issues.
Perylene‐based
acceptors,
contrast,
can
be
prepared
only
a
few
steps
display
good
photochemical
thermal
stability.
Herein,
we
introduce
four
monomeric
perylene
diimide
acceptors
obtained
three‐step
synthesis.
In
these
molecules,
semimetals
silicon
germanium
were
added
bay
position,
on
one
or
both
sides
resulting
asymmetric
symmetric
compounds
with
red‐shifted
absorption
compared
to
unsubstituted
diimide.
Introducing
two
atoms
improved
crystallinity
charge
carrier
mobility
blend
conjugated
polymer
PM6.
addition,
separation
is
significantly
influenced
by
this
blend,
as
shown
transient
spectroscopy.
As
result,
reached
power
conversion
efficiency
5.38
%,
which
highest
efficiencies
diimide‐based
recorded
date.
ACS Applied Polymer Materials,
Journal Year:
2023,
Volume and Issue:
5(3), P. 2097 - 2104
Published: Feb. 22, 2023
A
strategy
to
synthesize
hyper-crosslinked
polymers
with
strong
visible-light
absorption
and
abundant
ionic
sites
is
discussed.
This
achieved
in
a
one-pot
reaction
via
the
simultaneous
Friedel–Crafts
alkylation
quaternization
between
α,α′-dibromo-p-xylene
(DBX)
perylene
diimide
(PDI)
substituted
N,N-dimethyl
ethylene
result
(HIPs).
These
HIPs
display
good
surface
areas
(400–650
nm)
dispersibility
polar
solvents
like
water
DMSO.
Importantly,
our
experimental
theoretical
studies
indicate
that
PDI-HIPs
possess
dynamic
network
uptake
of
up
seven
times
their
weight.
Notably,
PDI
not
only
responsible
for
but
also
acts
as
probe
study
nature.
Moreover,
presence
ultramicropores
CO2-philic
functional
groups
renders
CO2
2.11
mmol/g
at
273
K
despite
relatively
low
area.
ACS Applied Electronic Materials,
Journal Year:
2024,
Volume and Issue:
6(5), P. 3874 - 3883
Published: May 10, 2024
The
high
charge
carrier
mobility
and
organized
solid-state
structure
of
perylene-based
materials
enable
them
to
be
used
in
optoelectronics.
impressive
luminance
organic
light-emitting
diodes
(OLEDs)
helps
improving
visibility
for
both
indoor
outdoor
activities.
Considering
the
good
structures,
we
report
three
molecular
systems
viz.
PhPrPy,
AnPrPy,
TPAPrPy,
integrated
with
functionalized
pyridines,
leading
formation
donor–acceptor
(D–A)
which
were
finally
explored
as
hole
transport
(HTMs)
solution-process
OLEDs.
pyridine
units
phenyl,
p-methoxyphenyl,
triphenylamine
functionalities.
For
theoretical
screening,
density
functional
theory
was
adopted
evaluating
molecules
their
optimized
geometries,
highest
occupied
orbital/lowest
unoccupied
orbital
energy
levels,
reorganization
energies,
electron
distribution
excited
states.
energies
ionization
potentials
indicated
possible
capability
transportation.
studies
revealed
that
incorporation
a
unit
framework
significantly
reduced
energy.
Based
on
predictions,
chose
TPAPrPy
most
promising
one
device
fabrication.
fabricated
green
phosphorescent
OLED
HTM
showed
performance
power
efficacy
(PE),
current
(CE),
external
quantum
efficiency
(EQE)
∼77
lm/W,
∼78
cd/A
∼22%,
respectively.
Given
PE,
CE,
EQE
present
device,
important
outcome
using
balance
between
low
trade-off.
Importantly,
roll-off
observed
when
measured
at
brightness
100
1000
cd/m2.
Angewandte Chemie International Edition,
Journal Year:
2022,
Volume and Issue:
61(48)
Published: Sept. 29, 2022
The
synthesis
of
an
antiaromatic
tetraoxa[8]circulene
annulated
with
four
perylene
diimides
(PDI),
giving
a
dynamic
non-planar
π-conjugated
system,
is
described.
molecule
contains
32
aromatic
rings
surrounding
one
formally
planarized
cyclooctatetraene
(COT).
intense
absorption
(ϵ=3.35×10
ACS Applied Energy Materials,
Journal Year:
2022,
Volume and Issue:
5(12), P. 15624 - 15637
Published: Dec. 2, 2022
Two
new
star-shaped
perylene
diimide
(PDI)-based
small-molecule
acceptors
denoted
as
BDP-3PDI
and
BDP-4PDI
with
BODIPY
derivatives
the
core
PDI
units
peripheral
groups
were
designed
successfully
synthesized,
their
photophysical
electrochemical
properties
studied.
When
paired
a
compatible
D–A
polymer
donor
P(BTT-DPP),
solar
cells
based
on
bulk
heterojunction
active
layer
attained
power
conversion
efficiencies
(PCEs)
of
about
10.97
13.94%
for
BDP-4PDI,
respectively.
The
higher
value
PCE
is
mainly
owing
to
enhanced
values
fill
factor
short
circuit
current
compared
related
more
balanced
charge
transport
blocked
recombination
appropriate
phase
separation
in
P(BTT-DPP):BDP-4PDI
P(BTT-DPP):BDP-3PDI.
