Chinese Journal of Chemistry,
Journal Year:
2023,
Volume and Issue:
41(22), P. 3133 - 3166
Published: June 16, 2023
Comprehensive
Summary
As
the
third
generation
new
battery,
power
conversion
efficiency
(PCE)
of
metal
halide
perovskite
solar
cells
(PSCs)
has
increased
from
3.8%
in
2009
to
25.8%
currently
certified,
which
fully
shows
that
they
have
great
research
value
and
development
prospect.
one
main
components
high‐efficiency
PSCs,
hole
transport
materials
(HTMs)
play
an
important
role
extracting
transporting
holes
inhibiting
charge
recombination.
However,
commonly
used
HTMs
require
doping,
hygroscopicity
corrosiveness
dopants
will
destroy
stability
PSCs
hinder
their
commercialization.
Therefore,
it
is
significance
develop
dopant‐free
HTMs.
In
this
review,
recent
six
years
are
reviewed
summarized
systematically,
including
organic
small
molecules,
polymers
cross‐linkable
materials.
We
focus
on
design
molecular
cores
discuss
structure–property
correlation,
conductivity,
photovoltaic
performance.
Finally,
how
ideal
HTM
summarized.
hope
review
can
provide
reference
for
low‐cost
prepare
efficient
stable
PSCs.
Small,
Journal Year:
2024,
Volume and Issue:
unknown
Published: May 6, 2024
Abstract
Management
of
functional
groups
in
hole
transporting
materials
(HTMs)
is
a
feasible
strategy
to
improve
perovskite
solar
cells
(PSCs)
efficiency.
Therefore,
starting
from
the
carbazole–diphenylamine‐based
JY7
molecule,
JY8
and
JY9
molecules
are
incorporated
into
different
electron‐withdrawing
fluorine
cyano
on
side
chains.
The
theoretical
results
reveal
that
introduction
can
these
highest
occupied
molecular
orbital
(HOMO)
energy
levels,
intermolecular
stacking
arrangements,
stronger
interface
adsorption
perovskite.
Especially,
dynamics
(MD)
indicate
fluorinated
molecule
yield
preferred
surface
orientation,
which
exhibits
To
validate
computational
model,
JY7‐JY9
synthesized
assembled
PSC
devices.
Experimental
confirm
HTMs
exhibit
outstanding
performance,
such
as
high
mobility,
low
defect
density,
efficient
extraction.
Consequently,
devices
based
achieve
higher
PCE
than
those
JY9.
This
work
highlights
management
realize
goal
designing
for
improvement
Journal of the American Chemical Society,
Journal Year:
2024,
Volume and Issue:
146(38), P. 26060 - 26070
Published: Aug. 8, 2024
Organic
materials
have
been
widely
used
as
the
charge
transport
layers
in
perovskite
solar
cells
due
to
their
structural
versatility
and
solution
processability.
However,
low
surface
energy
usually
causes
unsatisfactory
thin-film
wettability
contact
with
solution,
which
limits
interfacial
performance
of
photovoltaic
devices.
Although
solvent
post-treatment
could
occasionally
regulate
wetting
behavior
organic
films,
mechanism
solid–liquid
interaction
is
still
unclear.
Here,
we
present
evidence
a
possible
correlation
between
conventional
polymer,
poly[bis(4-phenyl)
(2,4,6-trimethylphenyl)
amine]
(PTAA),
reveal
critical
roles
Hansen
solubility
parameters
(HSPs)
solvents
mechanisms.
Our
results
suggest
that
N,N-dimethylformamide
(DMF)
improves
PTAA
by
morphological
disruption
but
negatively
impacts
collection
stability.
In
contrast,
2-methoxyethanol
(2-Me)
an
appropriate
HSP
value
induces
transformation
configuration
orderly
manner,
simultaneously
property
maintains
film
topography.
After
careful
optimization
conformation
film,
both
crystallization
compatibility
enhanced.
Benefiting
from
superior
properties,
based
on
2-Me
deliver
champion
efficiency
24.15%
compared
21.4%
for
DMF-based
ones.
More
encouragingly,
use
minimizes
buried
defects,
enabling
unencapsulated
devices
maintain
about
95%
initial
efficiencies
after
light
illumination
1100
h.
The
study
demonstrates
high
effectiveness
solvent–polymer
adjusting
properties
strengthening
robustness
cells.
Journal of the American Chemical Society,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 18, 2024
Chemically
modifiable
small-molecule
hole
transport
materials
(HTMs)
hold
promise
for
achieving
efficient
and
scalable
perovskite
solar
cells
(PSCs).
Compared
to
emerging
self-assembled
monolayers,
HTMs
are
more
reliable
in
terms
of
large-area
deposition
long-term
operational
stability.
However,
current
inverted
PSCs
lack
molecular
designs
that
balance
both
the
charge
capability
interface
compatibility,
resulting
a
long-standing
stagnation
power
conversion
efficiency
(PCE)
below
24.5%.
Here,
we
report
comprehensive
design
HTMs'
backbone
functional
groups,
which
optimizes
simple
planar
linear
with
high
mobility
exceeding
7.1
×
10
Chinese Journal of Chemistry,
Journal Year:
2023,
Volume and Issue:
41(22), P. 3133 - 3166
Published: June 16, 2023
Comprehensive
Summary
As
the
third
generation
new
battery,
power
conversion
efficiency
(PCE)
of
metal
halide
perovskite
solar
cells
(PSCs)
has
increased
from
3.8%
in
2009
to
25.8%
currently
certified,
which
fully
shows
that
they
have
great
research
value
and
development
prospect.
one
main
components
high‐efficiency
PSCs,
hole
transport
materials
(HTMs)
play
an
important
role
extracting
transporting
holes
inhibiting
charge
recombination.
However,
commonly
used
HTMs
require
doping,
hygroscopicity
corrosiveness
dopants
will
destroy
stability
PSCs
hinder
their
commercialization.
Therefore,
it
is
significance
develop
dopant‐free
HTMs.
In
this
review,
recent
six
years
are
reviewed
summarized
systematically,
including
organic
small
molecules,
polymers
cross‐linkable
materials.
We
focus
on
design
molecular
cores
discuss
structure–property
correlation,
conductivity,
photovoltaic
performance.
Finally,
how
ideal
HTM
summarized.
hope
review
can
provide
reference
for
low‐cost
prepare
efficient
stable
PSCs.
