Wide-bandgap perovskite solar cells with > 1.34 V Voc for all-perovskite tandems
Chemical Engineering Journal,
Год журнала:
2025,
Номер
unknown, С. 163287 - 163287
Опубликована: Май 1, 2025
Язык: Английский
Enhanced CO-tolerance of Rh-based catalysts by photo-assisted built-in electric field for efficient formic acid oxidation
Applied Catalysis B Environment and Energy,
Год журнала:
2025,
Номер
unknown, С. 125160 - 125160
Опубликована: Фев. 1, 2025
Язык: Английский
Endogenous Free-Electron-Involved Coreactant-Free Electrochemiluminescence from Nanoclusters and Its Immunoassay Application
Analytical Chemistry,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 21, 2025
All
of
the
commercialized
electrochemiluminescence
(ECL)
immunoassays
are
automatically
conducted
at
+1.40
V
(vs
Ag/AgCl)
in
coreactant
route.
To
alleviate
exogenous
effect
coreactants
and
simplify
operation
procedures,
herein,
a
sulfur-vacancy-involved
free
electron
strategy
is
proposed
to
exploit
Au
nanoclusters
(NCs)
as
anodic
electrochemiluminophores
perform
coreactant-free
immunoassay.
The
deficient
coordination
between
sulfhydryl
Met
core
might
induce
departure
partial
S
atoms
enable
Met-capped
AuNCs
(Met-AuNCs)
with
electron-rich
nature.
nature
tends
endow
Met-AuNCs
unpaired
endogenous
electrons,
which
can
directly
combine
holes
for
light
emitting.
Coreactant-free
ECL
around
+0.86
consequently
conveniently
achieved
by
merely
oxidizing
anode.
qualified
determine
human
carcinoembryonic
antigen
from
10
5000
pg/mL
limit
detection
5
pg/mL.
Electron
paramagnetic
resonance
provides
clear
evidence
that
electrons
within
play
an
important
role
generation
ECL.
This
promising
designing
nanoelectrochemiluminophores
improved
immunoassay
performance.
Язык: Английский
Improved vacuum-evaporated blue perovskite light-emitting diodes with phenethylammonium chloride and guanidinium bromide synergistic post-processing modification
Frontiers of Optoelectronics,
Год журнала:
2025,
Номер
18(1)
Опубликована: Март 24, 2025
Abstract
Metal
halide
perovskites
have
become
one
of
the
most
competitive
new-generation
optoelectronic
materials
due
to
their
excellent
properties.
Vacuum
evaporation
can
produce
high-purity
and
large-area
films,
leading
wide
application
this
method
in
semiconductor
industry
optoelectronics
field.
However,
electroluminescent
performance
vacuum-evaporated
perovskite
light-emitting
diodes
(PeLEDs)
still
lags
behind
those
counterparts
fabricated
by
solution
methods.
Herein,
based
on
vacuum
evaporation,
3D
films
are
obtained
three-source
co-evaporation.
Considering
unique
quantum
well
structure
quasi-2D
significantly
enhance
exciton
binding
energy
improve
radiative
recombination
rate,
a
high
photoluminescence
yield
(PLQY).
Subsequently,
highly
stable
low-defect-density
is
introduced
into
through
post-treatment
with
phenethylammonium
chloride
(PEACl).
To
minimize
degradation
film
quality
caused
PEACl
treatment,
layer
guanidinium
bromide
(GABr)
evaporated
top
treatment
further
emitting
layer.
Finally,
under
synergistic
post-processing
modification
GABr,
blue
PeLEDs
maximum
external
efficiency
(EQE)
6.09%
brightness
1325
cd/m
2
successfully
obtained.
This
work
deepens
understanding
2D/3D
heterojunctions
provides
new
approach
construct
performance.
Graphical
abstract
Язык: Английский
Scalable Slot‐Die Coating of Passivation Layers for Improved Performance of Perovskite Solar Cell Modules
Small Methods,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 20, 2024
Abstract
Upscaling
the
perovskite
solar
cell
(PSC)
while
avoiding
losses
in
power
conversion
efficiency
presents
a
substantial
challenge,
especially
when
transitioning
from
≤1
cm
2
cells
to
≥10
modules.
In
addition
fabrication
of
key
functional
layers,
scalable
technologies
for
surface
passivation,
considered
indispensable
achieving
high‐performance
PSCs,
are
urgently
required.
However,
studies
on
this
topic
remain
limited.
study,
an
industry‐ready
slot‐die
coating
method
effective
passivation
films
as
practical
alternative
is
developed
spin‐coating
procedures
commonly
used
research.
The
conditions
and
molecular
structure
agent
systematically
optimized
achieve
high‐quality
film
morphology
substantially
suppress
interface
recombination.
2‐chloro‐5‐(trifluoromethyl)‐phenylammonium
bromide
exhibited
best
results,
improving
open‐circuit
voltage
subcells
module
by
80
±
4
72
10
mV,
respectively.
Correspondingly,
larger‐area
(active
area:
)
modules
sustained
highest
21.9%
under
simulated
1‐sun
irradiation.
encapsulated
devices
retained
94%
their
initial
performances
after
750
h
continuous
operation.
proposed
surface‐passivation
technology
compatible
with
high‐throughput
processes
employable
large‐scale
PSC
fabrication.
Язык: Английский