Molecules,
Год журнала:
2023,
Номер
28(7), С. 3076 - 3076
Опубликована: Март 30, 2023
Perovskite
solar
cells
(PSCs)
have
great
potential
for
future
application.
However,
the
commercialization
of
PSCs
is
limited
by
prohibitively
expensive
and
doped
hole-transport
materials
(HTMs).
In
this
regard,
small
molecular
dopant-free
HTMs
are
promising
alternatives
because
their
low
cost
high
efficiency.
these
still
a
lot
space
making
further
progress
in
both
efficiency
stability.
This
review
firstly
provides
outlining
analyses
about
important
roles
orientation
when
enhancements
device
stability
concerned.
Then,
currently
studied
strategies
to
control
presented.
Finally,
we
propose
an
outlook
aiming
obtain
optimized
cost-effective
way.
Journal of the American Chemical Society,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 13, 2025
Small-molecule
organic
semiconductors
have
demonstrated
significant
potential
for
application
in
hole-transporting
materials
(HTMs)
perovskite
solar
cells
(PSCs),
thanks
to
their
high
reproducibility
and
convenient
synthesis
routes.
Finely
designed
planar
π-π
stacking
structures
emerged
as
one
of
the
primary
strategies
achieving
high-performance
small-molecule
HTMs.
In
particular,
incorporation
a
helical
structure
into
HTM
designs
through
linearization
approach
has
proven
effective,
leading
development
novel
with
superior
properties.
this
study,
structure-property
relationship
these
small
molecules
been
systematically
explored.
The
newly
developed
HTM,
SPCF-MeTPA,
based
on
spiro[cyclopentane-1,9'-fluorene]
core,
features
rigid
conjugated
system
spiro-linked
core.
This
design
provides
improved
intermolecular
charge
extraction
transport,
optimized
energy
levels,
effective
surface
passivation
compared
SPTP-MeTPA,
which
nonplanar
spatial
arrangement.
As
result,
champion
device
SPCF-MeTPA
achieves
efficiencies
26.35%
(certified
25.75%)
24.55%
aperture
areas
0.07
1.01
cm2,
respectively.
Additionally,
devices
demonstrate
exceptional
long-term
stability,
further
highlighting
HTM.
ACS Applied Materials & Interfaces,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 15, 2025
Compared
with
conventional
lithium-ion
batteries
organic
electrolytes,
aqueous
zinc-ion
low
cost,
sustainable,
and
environmentally
friendly
cathodes
exhibit
promising
potential
to
meet
the
continuously
increasing
demand
of
safe
large-scale
energy
storage.
The
representative
cathodes,
including
quinoidal
polycyclic
aromatic
hydrocarbons
(PAHs)
2,2,6,6-tetramethylpiperidinyl-N-oxyl
(TEMPO)
polymers,
suffer
from
challenging
synthesis
limited
theoretical
specific
capacity.
Herein,
different
PAHs
TEMPO
stable
4,4',4″-nitrilotriphenol
[TPA-(OH)3]
is
explored
as
radical
cathode
material
by
extremely
low-cost
raw
materials
two
simple
reactions.
Further,
an
open-shell
TPA-O3
obtained
facile
oxidation
air.
Interestingly,
showed
unexpected
higher
electron
conductivity
3.35
×
10-4
S
cm-1
than
precursor
[2.73
10-6
for
TPA-(OMe)3].
nitro-like
nitroxide
resonance
structures
contribute
its
high
electrochemical
stability
during
200-cycle
cyclic
voltammetry
test
in
air
thus
good
reversibility
when
used
a
material.
Moreover,
exhibits
reduction
voltage
∼
1.0
V
vs
Zn/Zn2+
at
0.5
mV
s-1,
which
those
most
quinone-based
comparable
TEMPO-type
cathodes.
It
also
demonstrates
capacity
123.7
mA
h
g-1
high-capacity
retention
95.87%
after
2000
cycles
5
A
g-1,
marking
superiority
previously
reported
Chemical Reviews,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 21, 2025
Solution-processed
perovskite
solar
cells
(PSCs)
and
light
emitting
diodes
(PeLEDs)
represent
promising
next-generation
optoelectronic
technologies.
This
Review
summarizes
recent
advancements
in
the
application
of
metal
halide
materials
for
PSC
PeLED
devices
to
address
efficiency,
stability
scalability
issues.
Emphasis
is
placed
on
material
chemistry
strategies
used
control
engineer
composition,
deposition
process,
interface
micro-nanostructure
solution-processed
films,
leading
high-quality
crystalline
thin
films
optimal
device
performance.
Furthermore,
we
retrospectively
compare
physics
PSCs
PeLEDs,
their
working
principles
energy
loss
mechanisms,
examining
similarities
differences
between
two
types
devices.
The
reciprocity
relationship
suggests
that
a
great
should
also
be
PeLED,
motivating
search
interconverting
photoelectric
bifunctional
with
maximum
radiative
recombination
negligible
non-radiative
recombination.
Specific
requirements
PeLEDs
terms
bandgap,
thickness,
band
alignment
charge
transport
achieve
this
target
are
discussed
detail.
Further
challenges
issues
illustrated,
together
prospects
future
development.
Understanding
these
fundamentals,
embracing
breakthroughs
exploring
pave
way
toward
rational
design
development
high-performance
Journal of Materials Chemistry C,
Год журнала:
2023,
Номер
12(4), С. 1147 - 1176
Опубликована: Дек. 4, 2023
Efficient
conventional
perovskite
solar
cells
with
organic
dopant-free
HTMs
are
collected.
It
is
showed
that
both
the
chemical
structure
of
and
interfacial
materials
play
significant
roles
in
efficiency,
their
effects
discussed.
Molecules,
Год журнала:
2023,
Номер
28(7), С. 3076 - 3076
Опубликована: Март 30, 2023
Perovskite
solar
cells
(PSCs)
have
great
potential
for
future
application.
However,
the
commercialization
of
PSCs
is
limited
by
prohibitively
expensive
and
doped
hole-transport
materials
(HTMs).
In
this
regard,
small
molecular
dopant-free
HTMs
are
promising
alternatives
because
their
low
cost
high
efficiency.
these
still
a
lot
space
making
further
progress
in
both
efficiency
stability.
This
review
firstly
provides
outlining
analyses
about
important
roles
orientation
when
enhancements
device
stability
concerned.
Then,
currently
studied
strategies
to
control
presented.
Finally,
we
propose
an
outlook
aiming
obtain
optimized
cost-effective
way.
