Inorganic Chemistry,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 7, 2025
Constructing
patterned
film
photoanodes
with
economizing
raw
chemicals
but
enhancing
photoelectrochemical
(PEC)
performance
is
attractive
for
practical
applications.
However,
simultaneously
optimizing
light
scattering
and
interfacial
charge
transfer
through
plasmonic
enhancement
remains
challenging.
Herein,
we
developed
a
novel
photoanode
featuring
Au
grids
nanometer-thick
CdSe
layer
(Au
grid-CdSe)
well-organized
heterointerfaces,
fabricated
via
facile
colloidal
topochemical
strategy.
This
design
leverages
the
synergistic
coupling
between
plasmons
excitons
in
heteropatterned
films.
The
underlying
serve
dual
functions:
as
an
electron
collector
reflector.
Their
highly
ordered
Bragg
structure
effectively
scatters
incident
into
ultrathin
layer.
Furthermore,
CdCl2
surface
passivation
of
Au(grid)-CdSe
photoanode,
based
on
this
unique
absorption/reflector
architecture,
yielded
photocurrent
density
4.51
mA
cm-2,
representing
significant
enhancement.
Compared
to
similarly
prepared
Au-CdSe
heterofilms,
passivated
films
exhibited
2.0-fold
higher
PEC
hydrogen
evolution
performance,
maintained
excellent
stability
over
26
h,
reduced
consumption
by
32%.
strategy
offers
pathway
improving
semiconductor-based
optoelectronic
devices.
Research Square (Research Square),
Год журнала:
2025,
Номер
unknown
Опубликована: Март 27, 2025
Abstract
Vertically
inhomogeneous
strain
within
perovskite
crystalline
layers
remains
a
critical
challenge
for
achieving
high
efficiency
and
enhanced
stability
in
solar
cells.
Herein,
we
address
this
issue
by
integrating
ascorbyl
glucoside
into
hydrothermally
synthesized
TiO2
nanocrystals
from
TiCl4
to
reduce
the
surface
energy
of
electron
transport
layer.
The
reduced
establishes
liquid/solid/air
interface,
creating
dewetting
effect
trigger
stressed
lattice
at
bottom
region.
This
design
aligns
with
liquid/air
interface
top,
typically
accompanied
formation
an
inevitably
strained
top
crystals.
By
precisely
controlling
crystallization
conditions
successfully
achieved
compressively
film
that
is
homogeneously
throughout
out-of-plane
direction.
uniformly
exhibits
significant
efficiency,
along
remarkable
operational
stability,
maintaining
over
95%
its
initial
(T95)
2,000
hours.
Inorganic Chemistry,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 7, 2025
Constructing
patterned
film
photoanodes
with
economizing
raw
chemicals
but
enhancing
photoelectrochemical
(PEC)
performance
is
attractive
for
practical
applications.
However,
simultaneously
optimizing
light
scattering
and
interfacial
charge
transfer
through
plasmonic
enhancement
remains
challenging.
Herein,
we
developed
a
novel
photoanode
featuring
Au
grids
nanometer-thick
CdSe
layer
(Au
grid-CdSe)
well-organized
heterointerfaces,
fabricated
via
facile
colloidal
topochemical
strategy.
This
design
leverages
the
synergistic
coupling
between
plasmons
excitons
in
heteropatterned
films.
The
underlying
serve
dual
functions:
as
an
electron
collector
reflector.
Their
highly
ordered
Bragg
structure
effectively
scatters
incident
into
ultrathin
layer.
Furthermore,
CdCl2
surface
passivation
of
Au(grid)-CdSe
photoanode,
based
on
this
unique
absorption/reflector
architecture,
yielded
photocurrent
density
4.51
mA
cm-2,
representing
significant
enhancement.
Compared
to
similarly
prepared
Au-CdSe
heterofilms,
passivated
films
exhibited
2.0-fold
higher
PEC
hydrogen
evolution
performance,
maintained
excellent
stability
over
26
h,
reduced
consumption
by
32%.
strategy
offers
pathway
improving
semiconductor-based
optoelectronic
devices.
