Energies,
Год журнала:
2024,
Номер
17(18), С. 4755 - 4755
Опубликована: Сен. 23, 2024
Perovskite-type
structures
have
unique
crystal
architecture
and
chemical
composition,
which
make
them
highly
attractive
for
the
design
of
solar
cells.
For
instance,
perovskite-based
cells
been
shown
to
perform
better
than
silicon
cells,
capable
adsorbing
a
wide
range
light
wavelengths,
they
can
be
relatively
easily
manufactured
at
low
cost.
Importantly,
also
adsorb
significant
amount
hydrogen
atoms
into
their
own
structure;
therefore,
perovskite
holds
promise
in
solid-state
storage
hydrogen.
It
is
widely
expected
by
scientific
community
that
controlled
adsorption/desorption
into/from
help
overcome
main
issues
such
as
volumetric
density
safety
concerns
(i.e.,
embrittlement
affects
strongly
mechanical
properties
metals
and,
such,
or
transport
gaseous
vessels
is,
especially
large
vessel
volumes,
challenging).
The
purpose
this
review
provide
an
updated
overview
recent
results
studies
focusing
on
materials
used
both
applications.
Particular
attention
given
(i)
preparation
achievable
efficiency
stability
(ii)
structural,
thermodynamic,
hydrides
oxides.
We
show
not
only
reach
above
current
Si-based
but
also,
due
good
reasonable
price,
preferable
Then,
future
trends
directions
research
application
are
highlighted.
Abstract
Benefiting
from
the
high
sensitivity
and
electromechanical
conversion
efficiency,
triboelectric
nanogenerators
(TENGs)
are
widely
used
in
various
fields
of
self‐powered
sensing
mechanical
energy
harvesting,
which
have
great
potential
for
application
future
smart
Internet
Things.
The
development
sustainable
materials
with
high‐performance
has
a
vital
impact
on
construction
TENG
devices
that
combine
high‐output
performance
environmental
friendliness,
positive
humanity.
This
review
systematically
comprehensively
summarizes
latest
research
work
TENG's
materials.
First,
an
overall
overview
is
provided
based
composition
materials,
including
amino
acids,
polysaccharides,
synthetic
polymer,
representative
works
further
classified
summarized
detail.
In
addition,
progress
harvesting
applications
also
summarized.
Finally,
overviews
challenges
current
material,
related
outlooks
offered
corresponding
strategies
directions
this
field
future.
Advanced Functional Materials,
Год журнала:
2024,
Номер
34(44)
Опубликована: Авг. 16, 2024
Abstract
This
work
presents
the
advancement
of
lead‐free
tin
perovskite
photodiodes
in
terms
their
photodetection
and
air
stability
by
incorporating
germanium
(Ge)
ethylenediamine
(EDA)
to
formamidinium
iodide
(FASnI
3
).
EDA
0.01
FA
0.98
SnI
:Ge‐based
demonstrate
a
significantly
improved
specific
detectivity
(1.6
×
10
12
Jones
at
−0.1
V),
cut‐off
frequency
(6.6
5
Hz),
response
speed
(0.53
µs),
signal‐to‐noise
ratio
(45
dB)
compared
with
control
devices.
The
superior
performance
is
attributed
stronger
Ge─I
bond,
passivation
Sn
2+
I
–
vacancies
smaller
Ge
ions,
promotion
fully
3D
structure,
elevation
conduction
band
energy
level,
formation
protective
GeO
layer.
Various
film
analyses,
including
X‐ray
photoelectron
spectroscopy,
UV
density
functional
theory,
as
well
device
testing
using
time‐of‐flight
secondary
ion
mass
spectrometry
voltage‐dependent
admittance,
support
explain
mechanisms
behind
enhancements.
Ge‐
EDA‐incorporated
exhibit
excellent
stability,
evidenced
time‐dependent
ultraviolet
visible
spectra
considerably
high
certified
power
conversion
efficiency
without
encapsulation
air,
demonstrating
potential
for
practical
applications.
obtained
highest
among
published
tin‐based
photodetectors,
presenting
monumental
progress
from
previous
report
same
group.
Beilstein Journal of Nanotechnology,
Год журнала:
2025,
Номер
16, С. 119 - 127
Опубликована: Фев. 6, 2025
Perovskite
solar
cells
(PSCs)
are
in
the
focus
of
photovoltaic
industry.
Lead-free
double
perovskite
(DPSCs)
have
become
an
essential
alternative
lead-based
PSCs
as
a
promising
material.
The
layer
is
remarkable
choice
active
because
intrinsic
carrier
stability,
low
exciton
binding
energy,
and
toxicity.
Herein,
optimization
planar
DPSC
with
multifunctional
absorber
layer,
that
is,
La
2
NiMnO
6
(LNMO),
studied
organic
inorganic
hole
transport
layers
(HTLs)
Cu
O
PEDOT:PSS.
Our
study
yields
significant
improvement
power
conversion
efficiency
(PCE)
two
types
HTLs.
optimized
devices
achieved
maximum
PCE
27.84%
27.38%
for
PEDOT:PSS,
respectively,
corresponding
open-circuit
voltages
1.27
1.22
V,
short-circuit
current
densities
28.60
28.91
mA/cm
,
fill
factors
76.31%
77.15%,
respectively.
These
results
highlight
potential
these
HTLs
enhanced
device
performance.
Three‐dimensional
organic–inorganic
perovskite
solar
cells
show
continuous
improvement
in
power
conversion
efficiency.
However,
the
defects
present
on
surface
affect
device
performance
and
long‐term
stability.
In
this
study,
we
introduced
N‐(2‐phenoxyethyl)
guanidine
nitrate
salt
(NPEGN)
as
a
passivator
to
effectively
engineer
reduce
nonradiative
recombination
at
interface.
The
NPEGN
introduction
results
large
grains
with
fewer
grain
boundaries,
leading
formation
of
low‐dimensional
2D
phase
surface.
Furthermore,
treatment
passivates
through
ionic
hydrogen
bonding
inhibits
degradation
by
preventing
ion
migration.
Additionally,
improved
energy‐level
alignment
perovskite/electron
transport
layer
interface
enhances
charge
capacity
reduces
recombination.
Consequently,
efficiency
increases
21.02%,
while
unencapsulated
devices
retained
100%
their
initial
for
2200
h
nitrogen
atmosphere
90%
450
65°C.
