Advanced Energy Materials,
Год журнала:
2022,
Номер
12(42)
Опубликована: Сен. 20, 2022
Abstract
Organic‐free
and
lead‐free
CsSnI
3
perovskite
solar
cells
(PSCs)
have
recently
gained
growing
attention
as
a
promising
template
to
mitigate
the
thermal
instability
lead
toxicity
of
hybrid
lead‐based
PSCs.
However,
relatively
low
device
efficiency
due
high
content
Sn(II)‐related
defects
hinders
its
further
development.
Herein,
highly
performed
3−x
Br
x
compositional
perovskite‐based
PSCs
are
achieved
by
using
dimethyl
ketoxime
(C
H
7
NO,
DMKO)
multifunctional
additive.
As
commercially
used
deoxidant,
DMKO
can
effectively
neutralize
oxygen
molecule
reduce
Sn
4+
back
2+
,
enhancing
oxidation
resistance
film.
Besides,
electron‐rich
oxime
group
(NOH)
in
tends
interact
with
ions
extremely
adsorption
energy
less
than
−15
eV
inhibits
defect
formation,
resulting
films
density.
The
corresponding
deliver
considerable
open‐circuit
voltage
(
V
oc
)
0.75
record
11.2%,
which
represents
highest
reported
for
all‐inorganic
thus
far.
More
importantly,
grain
surface
distributed
provides
an
situ
encapsulation
perovskite,
results
greatly
enhanced
ambient
stability
un‐encapsulated
devices.
Chemical Communications,
Год журнала:
2024,
Номер
60(16), С. 2152 - 2167
Опубликована: Янв. 1, 2024
In
nanoarchitectonics
approaches,
rational
physical
and
chemical
communications
will
lead
to
the
development
of
more
advanced
functional
materials.
Layer-by-layer
assembly
can
be
a
powerful
tool
for
this
purpose,
as
exemplified
in
feature
paper.
Advanced Materials,
Год журнала:
2024,
Номер
36(21)
Опубликована: Март 26, 2024
Abstract
Developing
an
additive
to
effectively
regulate
the
perovskite
crystallization
kinetics
for
optimized
optoelectronic
properties
of
film
plays
a
vital
role
in
obtaining
high
efficiency
and
stable
solar
cells
(PSCs).
Herein,
new
is
designed
directly
synthesized
precursor
solution
by
utilizing
addition
reaction
between
but‐3‐yn‐1‐amine
hydrochloride
(BAH)
formamidinium
iodide.
It
found
that
its
product
may
control
intermediate
phase
regulating
nucleation,
leading
advantageous
2D
induce
growth
along
preferred
[001]
orientation
with
not
only
released
lattice
strain
but
also
strong
interaction
passivate
surface
defects.
By
taking
advantage
above
synergistic
effects,
PSC
delivers
25.19%
open‐circuit
voltage
(
V
OC
)
1.22
V.
Additionally,
devices
demonstrate
good
stability,
remaining
over
90%
their
initial
efficiencies
under
ambient
atmosphere
conditions
60
days,
temperature
85
°C
200
h,
or
maximum
power
point
tracking
500
h.
Abstract
The
development
of
wearable
energy
sto
rage
and
harvesting
devices
is
pivotal
for
advancing
next-generation
healthcare
technologies,
facilitating
continuous
real-time
health
monitoring.
Traditional
have
been
constricted
by
bulky
rigid
batteries,
limiting
their
practicality
comfort.
However,
recent
advancements
in
materials
science
enabled
the
creation
flexible,
stretchable,
lightweight
storage
solutions.
integration
technologies
essential
developing
self-sustaining
systems
that
minimize
reliance
on
external
power
sources
enhance
device
longevity.
These
integrated
ensure
operation
sensors
processors
vital
This
review
examines
significant
progress
harvesting,
focusing
latest
devices,
solar
cells,
biofuel
triboelectric
nanogenerators,
magnetoelastic
gene
rators,
supercapacitors,
lithium-ion
zinc-ion
batteries.
It
also
discusses
key
parameters
crucial
applications,
such
as
density,
durability.
Finally,
addresses
future
challenges
prospects
this
rapidly
evolving
field,
underscoring
potential
innovative,
self-powered
applications.
Graphical
Advanced Energy Materials,
Год журнала:
2022,
Номер
12(47)
Опубликована: Окт. 17, 2022
Abstract
The
severe
nonradiative
recombination
losses
limit
the
further
improvement
of
open‐circuit
voltage
(
V
oc
)
and
power
conversion
efficiency
(PCE)
perovskite
solar
cells
(PVSCs).
In
this
work,
4,4′‐cyclohexylidenebis
[
N
,
‐bis(4‐methylphenyl)
benzene
amine]
is
dissolved
into
antisolvent
to
prepare
films,
which
reduces
defects,
improves
crystallinity,
induces
a
p/p
+
homojunction
on
top
surface
film.
Besides,
2‐thiophenemethylammonium
iodide
2‐thiophenethylammonium
form
interface
electric
field
passivate
defects
bottom
enhance
charges’
separation
transportation
efficiencies
in
bulk
film
at
perovskite/charge
transport
layer
interfaces,
effectively
loss
PVSCs.
Consequently,
low
0.348
realized,
resulting
increase
from
1.082
1.172
PCE
from19.15%
23.44%.
optimized
PVSCs
without
encapsulation
maintain
88.23%
original
after
exposing
air
for
1500
h.
This
work
provides
strategy
reduce
by
forming
surfaces
film,
advances
development
high‐performance
Advanced Energy Materials,
Год журнала:
2022,
Номер
12(42)
Опубликована: Сен. 20, 2022
Abstract
Organic‐free
and
lead‐free
CsSnI
3
perovskite
solar
cells
(PSCs)
have
recently
gained
growing
attention
as
a
promising
template
to
mitigate
the
thermal
instability
lead
toxicity
of
hybrid
lead‐based
PSCs.
However,
relatively
low
device
efficiency
due
high
content
Sn(II)‐related
defects
hinders
its
further
development.
Herein,
highly
performed
3−x
Br
x
compositional
perovskite‐based
PSCs
are
achieved
by
using
dimethyl
ketoxime
(C
H
7
NO,
DMKO)
multifunctional
additive.
As
commercially
used
deoxidant,
DMKO
can
effectively
neutralize
oxygen
molecule
reduce
Sn
4+
back
2+
,
enhancing
oxidation
resistance
film.
Besides,
electron‐rich
oxime
group
(NOH)
in
tends
interact
with
ions
extremely
adsorption
energy
less
than
−15
eV
inhibits
defect
formation,
resulting
films
density.
The
corresponding
deliver
considerable
open‐circuit
voltage
(
V
oc
)
0.75
record
11.2%,
which
represents
highest
reported
for
all‐inorganic
thus
far.
More
importantly,
grain
surface
distributed
provides
an
situ
encapsulation
perovskite,
results
greatly
enhanced
ambient
stability
un‐encapsulated
devices.
