Chemistry - An Asian Journal,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 7, 2025
Abstract
Perovskite
solar
cell
(PSC)
is
characterized
by
high
photoelectric
conversion
efficiency
(PCE)
and
low
material
cost
compared
to
the
silicon
that
has
already
been
commercialized.
Many
researchers
are
conducting
various
studies
improve
stability.
To
increase
power
efficiency,
hole
transporting
materials
(HTMs)
one
of
most
important
factors
for
achieving
performance
in
PSCs.
HTMs
exhibit
an
role
PSCs
transfer
positive
charges
between
perovskite
counter
electrodes.
Among
HTMs,
Spiro‐OMeTAD
widely
used
However,
due
its
reliance
on
additives
enhance
mobility,
suffers
from
degradation
issues
compromise
long‐term
So,
it
necessary
develop
new
replace
their
stability
expensiveness
future
application
Therefore,
we
designed
synthesized
named
PEH‐23
PEH‐24
incorporating
dialkoxyphenyl
dialkoxybenzodithiophene.
As
conjugation
length
increases,
demonstrates
improved
stability,
suggesting
potential
as
effective
HTM
with
reliability
Journal of the American Chemical Society,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 25, 2024
C-H···π
interactions,
a
prevalent
intermolecular
force,
play
pivotal
role
in
chemistry,
materials
science,
and
life
sciences.
Despite
extensive
studies
of
their
influence
on
binding
configurations
energetics,
impact
coupling
charge
transport
remains
unexplored.
Here,
we
investigate
the
within
supramolecular
junctions
connected
by
π-π
respectively,
find
that
interactions
exhibit
conductances
are
3.5
times
those
interactions.
Angstrom-scale
distance-dependent
experiments
indicate
conductance
experiences
initial
decay
under
stretching,
followed
gradual
convergence,
contrast
with
periodic
fluctuations
stacked
junctions.
Theoretical
calculations
show
transitions
from
destructive
to
constructive
quantum
interference
larger
range
compared
stacking.
This
study
establishes
facilitate
efficient
elucidates
evolution
effects
assembly
configuration,
offering
critical
insights
for
design
devices.
The Journal of Physical Chemistry C,
Journal Year:
2024,
Volume and Issue:
unknown
Published: July 16, 2024
Molecular
design
of
hole
transport
materials
(HTMs)
is
an
important
approach
to
improving
the
performance
perovskite
solar
cells
(PSCs).
In
this
work,
starting
from
carbazole–diphenylamine
derivatives,
three
HTMs,
CY3–CY5,
are
designed
modulate
HTMs
by
means
introduction
different
conjugation
groups
on
side
chains.
The
theoretical
simulation
results
indicate
that
CY3–CY5
exhibit
stable
molecular
structures,
suitable
frontier
orbital
energy
levels,
and
negative
solvation
free
energies.
Compared
with
CY3
CY4,
CY5
exhibits
higher
mobility
due
its
stronger
coupling.
At
same
time,
in
PSC
applications
can
yield
a
interfacial
adsorption
film.
experimental
provide
conditions
for
verifying
reliability
model.
Therefore,
optimized
devices
based
achieve
significant
power
conversion
efficiency
(22.01%),
which
better
than
PSCs
(21.28%)
CY4
(19.62%)
under
conditions.
By
combining
calculations
exploration,
feasibility
obtaining
potential
π-conjugate
extension
intermolecular
coupling
interaction
surface
improve
confirmed.
Solar RRL,
Journal Year:
2024,
Volume and Issue:
8(16)
Published: July 23, 2024
Developing
potential
hole
transport
materials
(HTMs)
is
an
effective
approach
to
reduce
carrier
nonradiative
recombination
and
improve
the
efficiency
of
perovskite
solar
cells
(PSCs).
To
investigate
intermolecular
interfacial
interactions
HTMs
in
PSC
devices,
two
molecules
(RQ7
RQ8)
with
substituent
group
functionalization
are
designed
by
isomerizing
‐F
‐SMe
para‐
ortho‐positions
on
side
chain
carbazole
diphenylamine‐based
HTMs.
Theoretical
simulations
indicate
that
groups
alters
their
dipole
moments
electronic
structures,
as
well
interactions,
capabilities,
at
HTMs/perovskite
interface.
Experimental
results
show
RQ8
exhibited
higher
mobility,
better
film‐forming
ability,
reduced
electron‐hole
recombination,
resulting
RQ8‐based
devices
achieving
a
power
conversion
than
those
based
RQ7.
Herein,
it
demonstrated
isomerous
feasible
strategy
for
controlling
regulating
applications.
Journal of Materials Chemistry C,
Journal Year:
2024,
Volume and Issue:
12(31), P. 12099 - 12105
Published: Jan. 1, 2024
Three
hole-transport
materials
(MT1–3)
were
successfully
used
in
inverted
perovskite
solar
cells,
and
the
MT1-based
device
exhibited
excellent
efficiency.