Energy & Environmental Science,
Год журнала:
2024,
Номер
17(16), С. 5984 - 5992
Опубликована: Янв. 1, 2024
Suppressing
side
reactions
led
to
the
formation
of
rational
Dion–Jacobson
2D/3D
surface
heterostructures,
achieving
an
optimal
PCE
23.05%
(certified
22.58%)
for
1.68
eV
perovskite
solar
cells.
Angewandte Chemie International Edition,
Год журнала:
2024,
Номер
63(17)
Опубликована: Март 4, 2024
Abstract
The
perovskite/silicon
tandem
solar
cell
(TSC)
has
attracted
tremendous
attention
due
to
its
potential
breakthrough
the
theoretical
efficiency
set
for
single‐junction
cells.
However,
perovskite
(PSC)
designed
as
top
component
suffers
from
severe
photo‐induced
halide
segregation
owing
mixed‐halide
strategy
achieving
desirable
wide‐bandgap
(1.68
eV).
Developing
pure‐iodide
perovskites
is
a
promising
route
fabricate
photostable
TSCs.
Here,
we
report
efficient
and
PSCs
made
an
anti‐solvent‐free
(ASF)
technique.
ASF
process
achieved
by
mixing
two
precursor
solutions,
both
of
which
are
capable
depositing
corresponding
films
without
involving
anti‐solvent.
mixed
solution
finally
forms
Cs
0.3
DMA
0.2
MA
0.5
PbI
3
film
with
bandgap
1.68
eV.
Furthermore,
methylammonium
chloride
additive
applied
enhance
crystallinity
reduce
trap
density
films.
As
result,
PSC
delivers
high
21.30
%
excellent
photostability,
highest
this
type
method
significantly
improves
device
reproducibility
compared
devices
other
anti‐solvent
methods.
Our
findings
provide
novel
recipe
prepare
PSCs.
Abstract
Interface
passivation
is
a
key
method
for
improving
the
efficiency
of
perovskite
solar
cells,
and
2D/3D
heterojunction
mainstream
strategy.
However,
layer
also
produces
new
interface
between
2D
fullerene
(C
60
),
properties
this
have
received
little
attention
before.
Here,
underlying
perovskite/C
by
taking
TEA
2
PbX
4
(TEA
=
C
6
H
10
NS;
X
I,
Br,
Cl)
passivator
as
an
example
are
systematically
expounded.
It
found
that
preferentially
exhibits
(002)
orientation
with
outermost
surface
featuring
oriented
arrangement
TEACl,
where
thiophene
groups
face
outward.
The
outward
further
form
strong
π–π
stacking
system
molecule,
strengthening
interaction
force
facilitating
creation
superior
interface.
Based
on
vacuum‐assisted
blade
coating,
wide‐bandgap
(WBG,
1.77
eV)
cells
achieved
impressive
records
19.28%
(0.09
cm
)
18.08%
(1.0
inefficiency,
respectively.
This
research
not
only
provides
understanding
processing
future
but
lays
solid
foundation
realizing
efficient
large‐area
devices.
ACS Energy Letters,
Год журнала:
2024,
Номер
9(6), С. 2936 - 2943
Опубликована: Май 26, 2024
Semitransparent
perovskite
solar
cells
(ST-PSCs)
have
emerged
as
an
exciting
prospect
due
to
their
applications
in
future
smart
buildings.
Semitransparency
is
typically
realized
through
the
use
of
wide
bandgap
materials
with
a
reduced
thickness.
In
this
study,
we
demonstrate
methylammonium
(MA)-free
for
active
layer
ST-PSCs.
However,
achieving
defect-free
highly
crystalline
films
lower
film
thickness
has
been
challenging.
We
report
precursor
engineering
approach
based
on
organic
ammonium
salt
tryptamine
hydro
bromide
(TABr)
anion
and
cation
group
passivate
both
halide
metal
ion
vacancies.
TABr
molecules
regulate
crystallization
kinetics
offer
thinner
films.
The
champion
device
exhibits
power
conversion
efficiency
(PCE)
14.21%,
along
average
visible
transparency
(AVT)
∼22%.
This
work
provides
efficient
method
enhance
performance
ST-PSCs
high
AVT
application
building
integrated
photovoltaics
(BIPVs).
Nano Letters,
Год журнала:
2024,
Номер
24(22), С. 6673 - 6682
Опубликована: Май 23, 2024
Reliably
discerning
real
human
faces
from
fake
ones,
known
as
antispoofing,
is
crucial
for
facial
recognition
systems.
While
neuromorphic
systems
offer
integrated
sensing-memory-processing
functions,
they
still
struggle
with
efficient
antispoofing
techniques.
Here
we
introduce
a
system
incorporating
multidimensional
deep
ultraviolet
(DUV)
optoelectronic
synapses
to
address
these
challenges.
To
overcome
the
complexity
and
high
cost
of
producing
DUV
using
traditional
wide-bandgap
semiconductors,
developed
low-temperature
(≤70
°C)
solution
process
fabricating
based
on
PEA2PbBr4/C8-BTBT
heterojunction
field-effect
transistors.
This
method
enables
large-scale
(4-in.),
uniform,
transparent
production
synapses.
These
devices
respond
both
visible
light,
showing
features.
Leveraging
unique
ability
synapse
(MDUVS)
discriminate
skin
artificial
materials,
have
achieved
robust
capability,
successfully
identifying
genuine
an
accuracy
exceeding
92%.
Energy & Environmental Science,
Год журнала:
2024,
Номер
17(16), С. 5984 - 5992
Опубликована: Янв. 1, 2024
Suppressing
side
reactions
led
to
the
formation
of
rational
Dion–Jacobson
2D/3D
surface
heterostructures,
achieving
an
optimal
PCE
23.05%
(certified
22.58%)
for
1.68
eV
perovskite
solar
cells.