ACS Energy Letters,
Journal Year:
2023,
Volume and Issue:
8(10), P. 4104 - 4112
Published: Sept. 11, 2023
Molecular
doping
has
become
a
valuable
technique
for
enhancing
the
efficiency
of
high-performance
organic
photovoltaic
systems
(OPVs).
However,
number
known
dopant
molecules,
especially
n-type
ones,
that
enhance
PCE
OPVs
remains
limited.
In
this
study,
two
dopants,
ethyl
viologen
(EV)
and
methyl
(MV),
are
synthesized
incorporated
into
ternary
PM6:BTP-eC9:PC71BM
bulk
heterojunction
(BHJ)
OPVs.
Both
dopants
found
to
OPV
performance,
yielding
maximum
values
19.03%
18.61%,
respectively.
We
show
EV
MV
function
as
microstructure
modifiers,
π–π
stacking
while
increasing
absorption
coefficient
BHJs.
Moreover,
n-doping
balances
carrier
mobility
lifetime
reducing
bimolecular
recombination.
Our
results
demonstrate
potential
improve
performance
highly
efficient
levels
beyond
those
achievable
by
pristine
BHJ.
ACS Energy Letters,
Journal Year:
2022,
Volume and Issue:
7(9), P. 3139 - 3148
Published: Aug. 30, 2022
Copper(I)
thiocyanate
(CuSCN)
is
a
wide
bandgap
and
solution-processable
p-type
semiconductor
with
tremendous
potential
for
large-area
optoelectronic
applications.
In
this
work,
chlorine-doped
CuSCN
(Cl2–CuSCN)
was
utilized
to
form
hole
transport
layer
(HTL)
different
organic
solar
cells
(OSCs)
inverted
perovskite
(PSCs).
Chlorine
doping
into
thin
films
found
improve
the
device
performance
of
OSCs,
level
comparable
that
PEDOT:PSS-based
OSCs.
Notably,
PSCs
Cl2–CuSCN
showed
better
than
those
pristine
or
PSC
devices.
Moreover,
Cl2–CuSCN-based
OSCs
also
reveal
significantly
stability
Our
results
show
how
act
as
universally
applicable
HTL
emerging
cell
technologies,
improving
both
stability.
ACS Applied Materials & Interfaces,
Journal Year:
2022,
Volume and Issue:
14(14), P. 16497 - 16504
Published: March 30, 2022
Interface
layers
used
for
electron
transport
(ETL)
and
hole
(HTL)
often
significantly
enhance
the
performance
of
organic
solar
cells
(OSCs).
Surprisingly,
interface
engineering
extraction
has
received
little
attention
thus
far.
By
finetuning
chemical
structure
carbazole-based
self-assembled
monolayers
with
phosphonic
acid
anchoring
groups,
varying
length
alkane
linker
(2PACz,
3PACz,
4PACz),
these
HTLs
were
found
to
perform
favorably
in
OSCs.
Compared
archetypal
PEDOT:PSS,
PACz
exhibit
higher
optical
transmittance
lower
resistance
deliver
a
short-circuit
current
density
fill
factor.
Power
conversion
efficiencies
17.4%
have
been
obtained
PM6:BTP-eC9
as
active
layer,
which
was
distinctively
than
16.2%
PEDOT:PSS.
Of
three
derivatives,
new
3PACz
consistently
outperforms
other
two
monolayer
OSCs
different
state-of-the-art
nonfullerene
acceptors.
Considering
its
facile
synthesis,
convenient
processing,
improved
performance,
we
consider
that
is
promising
layer
widespread
use
Advanced Functional Materials,
Journal Year:
2022,
Volume and Issue:
32(23)
Published: April 9, 2022
Abstract
Organic
and
perovskite
solar
cells
(PSCs)
have
made
significant
strides
in
the
last
couple
of
years
achieving
high
power
conversion
efficiencies
(18%
29%,
respectively)
exceptional
stability.
Ultra‐flexible
environmentally
stable
organic
PSCs
can
effectively
operate
under
various
illumination
settings.
Herein,
novel
device
concepts
that
comprise
photovoltaic
alone
or
tandem
with
batteries
supercapacitors,
acting
as
main
supply
to
another
microelectronic
component,
enabling
self‐powered
electronics
for
Internet
Things
(IoT)
are
reviewed.
Emphasis
is
placed
on
specific
requirements
posed
by
such
applications
pave
way
large
scale
commercialization.
The
importance
supporting
a
greener
IoT
ecosystem
eliminating
toxic
materials
solvents
fabrication
process
highlighted.
Chemical Science,
Journal Year:
2023,
Volume and Issue:
15(5), P. 1534 - 1556
Published: Nov. 10, 2023
We
summarize
the
challenges
to
design
and
synthesize
self-assembled
molecules,
discussing
their
synthetic
routes
structural
features
in
relationship
efficiency
of
perovskite-based
solar
cells
where
they
are
applied
as
selective
contacts.
ACS Energy Letters,
Journal Year:
2023,
Volume and Issue:
8(10), P. 4104 - 4112
Published: Sept. 11, 2023
Molecular
doping
has
become
a
valuable
technique
for
enhancing
the
efficiency
of
high-performance
organic
photovoltaic
systems
(OPVs).
However,
number
known
dopant
molecules,
especially
n-type
ones,
that
enhance
PCE
OPVs
remains
limited.
In
this
study,
two
dopants,
ethyl
viologen
(EV)
and
methyl
(MV),
are
synthesized
incorporated
into
ternary
PM6:BTP-eC9:PC71BM
bulk
heterojunction
(BHJ)
OPVs.
Both
dopants
found
to
OPV
performance,
yielding
maximum
values
19.03%
18.61%,
respectively.
We
show
EV
MV
function
as
microstructure
modifiers,
π–π
stacking
while
increasing
absorption
coefficient
BHJs.
Moreover,
n-doping
balances
carrier
mobility
lifetime
reducing
bimolecular
recombination.
Our
results
demonstrate
potential
improve
performance
highly
efficient
levels
beyond
those
achievable
by
pristine
BHJ.