ACS Applied Materials & Interfaces,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 28, 2025
Perovskite
quantum
dots
(PQDs)
have
garnered
significant
attention
for
their
exceptional
optoelectronic
properties,
yet
achieving
precise
luminescence
control
often
involves
complex
chemical
processes,
and
traditional
display
technologies
face
material
environmental
limitations.
In
this
study,
we
present
an
innovative
approach
utilizing
three
distinct
halide
perovskite
dot
solutions
to
achieve
tunable
emission
properties
without
additional
modifications.
By
employing
femtosecond
laser
patterning,
successfully
fabricated
high-resolution
(1.5
μm
spacing),
full-color
(410-710
nm)
patterns
with
excellent
stability.
This
method
eliminates
the
need
excessive
reagents
intricate
masking
steps,
significantly
streamlining
fabrication
process
enhancing
efficiency.
Our
findings
highlight
potential
of
combining
bandgap
engineering
advanced
patterning
techniques,
offering
a
practical
foundation
green
synthesis
simplified
manufacturing
processes
in
next-generation
technologies.
Materials Futures,
Год журнала:
2024,
Номер
3(2), С. 022102 - 022102
Опубликована: Апрель 24, 2024
Abstract
Perovskite
(PVK)
solar
cells
(PSCs)
have
garnered
considerable
research
interest
owing
to
their
cost-effectiveness
and
high
efficiency.
A
systematic
annual
review
of
the
on
PSCs
is
essential
for
gaining
a
comprehensive
understanding
current
trends.
Herein,
analysis
papers
reporting
key
findings
in
2023
was
conducted.
Based
results,
were
categorized
into
six
classifications,
including
regular
n–i–p
PSCs,
inverted
p–i–n
PVK-based
tandem
cells,
PVK
modules,
device
stability,
lead
toxicity
green
solvents.
Subsequently,
detailed
overview
summary
advancements
within
each
classification
presented.
Overall,
this
serves
as
valuable
resource
guiding
future
endeavors
field
PSCs.
Chemical Society Reviews,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
This
review
summarizes
the
progress
and
provides
perspectives
on
perovskite
quantum
dot
photovoltaics,
with
a
focus
surface
chemistry
engineering,
paving
new
direction
for
large-area
low-cost
PV
technology
to
address
major
energy
challenges.
Advanced Materials,
Год журнала:
2024,
Номер
36(29)
Опубликована: Май 6, 2024
Abstract
The
power
conversion
efficiencies
(PCEs)
of
polycrystalline
perovskite
(PVK)
solar
cells
(SCs)
(PC‐PeSCs)
have
rapidly
increased.
However,
PC‐PeSCs
are
intrinsically
unstable
without
encapsulation,
and
their
efficiency
drops
during
large‐scale
production;
these
problems
hinder
the
commercial
viability
PeSCs.
Stability
can
be
increased
by
using
colloidal
PVK
nanocrystals
(c‐PeNCs),
which
high
surface
strains,
low
defect
density,
exceptional
crystal
quality.
use
c‐PeNCs
separates
crystallization
process
from
film
formation
process,
is
preponderant
in
fabrication.
Consequently,
has
substantial
potential
to
overcome
challenges
encountered
when
fabricating
PC‐PeSCs.
Research
on
nanocrystal‐based
SCs
(NC‐PeSCs)
PCEs
a
level
greater
than
those
other
quantum‐dot
SCs,
but
not
reached
PC‐PeSCs;
this
inferiority
significantly
impedes
widespread
application
NC‐PeSCs.
This
review
first
introduces
distinctive
properties
c‐PeNCs,
then
strategies
that
been
used
achieve
high‐efficiency
Then
it
discusses
detail
persisting
domain.
Specifically,
major
solutions
for
NC‐PeSCs
related
short‐circuit
current
density
J
sc
covered.
Last,
article
presents
perspective
future
research
directions
applications
realm
ACS Energy Letters,
Год журнала:
2024,
Номер
9(6), С. 2807 - 2815
Опубликована: Май 17, 2024
Perovskite
colloidal
nanocrystals
(PeNCs)
have
exceptional
optoelectronic
properties
and
phase
stability,
making
them
promising
for
photovoltaic
applications.
However,
insulating
ligands
on
PeNC
surfaces
limit
the
current
density
reduce
power
conversion
efficiency
(PCE)
in
solar
cells
(SCs).
This
study
introduces
an
amine-assisted
ligand-exchange
(ALE)
strategy
using
3-phenyl-1-propylamine
(3P1P)
to
effectively
remove
long
from
films.
ALE
reduced
long-chain
ligand
without
increasing
number
of
defect
states
therefore
exciton-binding
energy
FAPbI3
NC
These
changes
facilitated
exciton
dissociation
charge
transport
SCs.
The
facilitation
was
due
increased
magnetic
dipole
interaction
between
excitons
after
process.
use
achieved
SCs
that
had
improved
short-circuit
17.98
mA/cm2
a
PCE
15.56%
with
stability
treatment
negligible
hysteresis.
work
provides
new
insight
into
engineering
Light Science & Applications,
Год журнала:
2025,
Номер
14(1)
Опубликована: Янв. 7, 2025
Abstract
Perovskite
quantum
dots
(PQDs)
show
promise
in
light-emitting
diodes
(LEDs).
However,
near-infrared
(NIR)
LEDs
employing
PQDs
exhibit
inferior
external
efficiency
related
to
the
PQD
emitting
visible
range.
One
fundamental
issue
arises
from
dynamic
surface:
ligand
loss
and
ions
migration
interfacial
sites
serve
as
quenching
centers,
resulting
trap-assisted
recombination
carrier
loss.
In
this
work,
we
developed
a
chemical
treatment
strategy
eliminate
interface
achieve
high
utilization.
We
employ
bidentate
liquid
agent
(Formamidine
thiocyanate,
FASCN)
with
tight
binding
suppress
formation
of
sites:
FASCN-treated
films
fourfold
higher
energy
than
original
oleate
ligands.
Furthermore,
short
ligands
(carbon
chain
<3)
enable
treated
eightfold
conductivity;
characteristics
FASCN
avoid
use
polar
solvents
guarantee
better
passivation.
The
conductivity
ensures
efficient
charge
transportation,
enabling
PQD-based
NIR-LEDs
have
record-low
voltage
1.6
V
at
776
nm.
champion
EQE
is
~23%:
twofold
control,
represents
highest
among
reported
NIR-LEDs.
ACS Applied Materials & Interfaces,
Год журнала:
2025,
Номер
17(9), С. 14243 - 14249
Опубликована: Фев. 19, 2025
Flexible
colloidal
quantum
dot
(QD)
optoelectronics
apply
the
superior
properties
of
QDs
to
flexible
devices,
exhibiting
unique
advantages
in
fields
imagers,
solar
cells,
displays,
wearable
sensors,
on-skin
electronics,
robotics,
and
bioimaging.
Here,
we
show
that
QD
photodiodes
(QDPDs)
with
an
ultrathin
absorber
layer
have
record
bending
stability
100,000
repetitive
cycles
devices.
The
QDPDs
obtained
a
high-quality
p-n
junction
1700
rectification
ratio.
formation
Fabry-Pérot
cavity
by
layered
stack
results
3.4-fold
enhanced
light
absorption,
while
structure
ensures
near-unity
efficient
extraction
(97%)
photogenerated
charge
carriers
from
PbS
film
upon
illumination
1330
nm
short-wavelength
infrared
light.
Finally,
suppression
capacitance
effect,
response
time
this
QDPD
can
be
as
short
20
ns,
which
is
fastest
for
QDPDs.
