Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 29, 2024
Abstract
2D
Ruddlesden‐Popper
(RP)
perovskites
have
excellent
environmental
stability
and
enhanced
photostability
compared
with
their
3D
counterparts.
However,
the
introduction
of
organic
spacer
cations
induces
disordered
crystal
growth
increased
exciton
binding
energy,
limiting
photoelectric
performance.
Here,
a
binary
engineering
strategy
is
reported
that
incorporates
aromatic
alkylamine
cations,
in
which
fluorine‐substituted
hydrocarbons
(4‐TFBZAI)
promotes
carrier
transport
(BAI)
assists
ordered
perovskite.
The
resulting
perovskite
(4‐TFBZA
1.6
BA
0.4
)FA
4
Pb
5
I
16
shows
preferred
orientational
reduced
enabling
an
efficient
photodetector
detectivity
exceeding
10
13
Jones
response
time
583
ns.
influence
varying
functional
groups
chain
lengths
examined.
results
reveal
selecting
long‐chain
to
mix
shall
be
based
on
considerations
both
length.
cation
suitable
enhances
transport,
while
flexible
facilitates
growth.
Moreover,
matched
between
are
crucial
performance
RP
perovskites.
This
work
will
guide
researchers
designing
new
types
Biosensors,
Journal Year:
2025,
Volume and Issue:
15(1), P. 38 - 38
Published: Jan. 10, 2025
Integrating
functional
materials
with
photonic
and
optoelectronic
technologies
has
revolutionized
medical
diagnostics,
enhancing
imaging
sensing
capabilities.
This
review
provides
a
comprehensive
overview
of
recent
innovations
in
materials,
such
as
quantum
dots,
perovskites,
plasmonic
nanomaterials,
organic
semiconductors,
which
have
been
instrumental
the
development
diagnostic
devices
characterized
by
high
sensitivity,
specificity,
resolution.
Their
unique
optical
properties
enable
real-time
monitoring
biological
processes,
advancing
early
disease
detection
personalized
treatment.
However,
challenges
material
stability,
reproducibility,
scalability,
environmental
sustainability
remain
critical
barriers
to
their
clinical
translation.
Breakthroughs
green
synthesis,
continuous
flow
production,
advanced
surface
engineering
are
addressing
these
limitations,
paving
way
for
next-generation
tools.
article
highlights
transformative
potential
interdisciplinary
research
overcoming
emphasizes
importance
sustainable
scalable
strategies
harnessing
diagnostics.
The
ultimate
goal
is
inspire
further
innovation
field,
enabling
creation
practical,
cost-effective,
environmentally
friendly
solutions.
Journal of Semiconductors,
Journal Year:
2025,
Volume and Issue:
46(1), P. 011601 - 011601
Published: Jan. 1, 2025
Abstract
Flexible
photodetectors
have
garnered
significant
attention
by
virtue
of
their
potential
applications
in
environmental
monitoring,
wearable
healthcare,
imaging
sensing,
and
portable
optical
communications.
Perovskites
stand
out
as
particularly
promising
materials
for
photodetectors,
offering
exceptional
optoelectronic
properties,
tunable
band
gaps,
low-temperature
solution
processing,
notable
mechanical
flexibility.
In
this
review,
we
explore
the
latest
progress
flexible
perovskite
emphasizing
strategies
developed
photoactive
device
structures
to
enhance
performance
stability.
Additionally,
discuss
typical
these
devices
offer
insights
into
future
directions
applications.
Advanced Energy Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 26, 2025
Abstract
Tin
perovskite
solar
cells
(PSCs)
have
garnered
considerable
attention
as
promising
alternatives
to
lead
PSCs
due
their
lower
toxicity
and
outstanding
optoelectronic
properties.
However,
efficiency
stability,
particularly
in
2D/3D
tin
PSCs,
are
usually
hindered
by
high
defect
densities
inefficient
carrier
transport.
In
this
study,
a
small‐molecule
Lewis
base
with
multiple
functional
groups‐cyanoacetohydrazide
(CAH)
is
employed
mitigate
defects
enhance
charge
transport
PSCs.
It
revealed
that
the
carbonyl,
amine,
cyano
groups
CAH
form
strong
chemical
bonds
Sn
2+
ions,
resulting
synergetic
coordination
effects.
Moreover,
interaction
between
effectively
regulates
crystallization
process
of
film,
high‐quality
film
enhanced
crystallinity,
reduced
density,
modulated
phase
distribution.
As
result,
optimized
achieve
remarkable
power
conversion
15.06%,
marking
one
highest
values
for
Furthermore,
devices
exhibit
retaining
95%
initial
performance
after
2000
h
storage
nitrogen
atmosphere.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 7, 2024
Electron-withdrawing
molecules
(EWMs)
have
exhibited
remarkable
efficacy
in
boosting
the
performance
of
perovskite
solar
cells
(PSCs).
However,
underneath
mechanisms
governing
their
positive
attributes
remain
inadequately
understood.
Herein,
we
conducted
a
comprehensive
study
on
EWMs
by
comparing
2,2'-(2,5-cyclohexadiene-1,4-diylidene)
bismalononitrile
(TCNQ)
and
(2,3,5,6-tetrafluoro-2,5-cyclohexadiene-1,4-diylidene)
dimalononitrile
(F4TCNQ)
employed
at
perovskite/hole
transport
layer
(HTL)
interfaces.
Our
findings
reveal
that
simultaneously
enhance
chemical
passivation,
interface
dipole
effect,
chemically
binding
to
HTL.
Notably,
F4TCNQ,
with
its
superior
electron-withdrawing
properties,
demonstrates
more
pronounced
impact.
Consequently,
PCSs
modified
F4TCNQ
achieved
an
impressive
power
conversion
efficiency
(PCE)
25.21
%,
while
demonstrating
excellent
long-term
stability.
Moreover,
PCE
larger-area
module
(14.0
cm
Energies,
Journal Year:
2024,
Volume and Issue:
17(11), P. 2671 - 2671
Published: May 31, 2024
In
recent
years,
all-inorganic
perovskite
solar
cells
have
become
a
research
hotspot
in
the
field
of
photovoltaics
due
to
their
excellent
stability
and
optoelectronic
performance,
power
conversion
efficiency
has
increased
from
initial
2.9%
over
20%.
This
article
briefly
introduces
development
cesium
lead-based
(CsPbX3-IPSC),
including
characteristics
CsPbX3
materials,
preparation
methods,
structure
working
principle
IPSCs.
Different
optimization
strategies
for
preparing
high
performance
high-stability
IPSCs,
such
as
element
doping
interface
modification,
are
discussed.
The
application
prospects
IPSCs
also
summarized.
Journal of Semiconductors,
Journal Year:
2025,
Volume and Issue:
46(1), P. 011608 - 011608
Published: Jan. 1, 2025
Abstract
Photodetectors
with
weak-light
detection
capabilities
play
an
indispensable
role
in
various
crucial
fields
such
as
health
monitors,
imaging,
optical
communication,
and
etc.
Nevertheless,
the
of
weak
light
signals
is
often
severely
interfered
by
multiple
factors
background
light,
dark
noise
circuit
noise,
making
it
difficult
to
accurately
capture
signals.
While
traditional
technologies
like
silicon
photomultiplier
tubes
excel
sensitivity,
their
high
cost
inherent
fragility
restrict
widespread
application.
Against
this
background,
perovskite
materials
have
rapidly
emerged
a
research
focus
field
photodetection
due
simple
preparation
processes
exceptional
optoelectronic
properties.
Not
only
are
straightforward
cost-effective,
but
more
importantly,
they
can
be
flexibly
integrated
into
flexible
stretchable
substrates.
This
characteristic
significantly
compensates
for
shortcomings
rigid
electronic
devices
specific
application
scenarios,
opening
up
entirely
new
possibilities
technology.
Herein,
recent
advances
technology
reviewed.
Firstly,
chemical
physical
properties
discussed,
highlighting
remarkable
advantages
detection.
Subsequently,
review
systematically
organizes
techniques
analyses
different
scenarios.
Meanwhile,
from
two
core
dimensions
performance
improvement
absorption
enhancement,
key
strategies
improving
photodetectors
explored.
Finally,
concludes
brief
summary
discussion
on
potential
challenges
that
may
arise
further
development
devices.
