Enhanced Photothermal Property of Dithienoindacenodithiophene Molecules by [2 + 2] Cycloaddition–Retroelectrocyclization Reaction for Efficient Solar Steam Generation
Solar RRL,
Год журнала:
2025,
Номер
9(5)
Опубликована: Фев. 23, 2025
The
development
of
efficient
photothermal
materials
for
solar
steam
generation
(SSG)
garners
significant
interest
as
a
solution
to
the
global
clean
water
scarcity
crisis.
Photothermal
properties
organic
molecules
can
be
fine‐tuned
by
molecular
design.
Despite
this
fact,
use
small‐molecular
in
SSG
applications
is
seldom
explored
due
their
limited
optical
absorption
range
energy
harvesting.
In
research,
6,6,12,12‐tetrakis(4‐octylphenyl)dithieno[2,3‐
d
:2′,3′‐
′]‐
s
‐indaceno[1,2‐
b
:5,6‐
′]dithiophene
(DTIDT)
focused
upon
potent
conjugated
core
unit,
and
[2
+
2]
cycloaddition–retroelectrocyclization
(CA‐RE)
reaction
applied
introduce
additional
intramolecular
charge‐transfer
chromophores.
DTIDT
derivatives
exhibit
broad
absorption,
weak
photoluminescence,
high
nonradiative
decay
rates,
which
are
useful
conversion.
addition,
placed
on
top
surface
filter
paper,
devices
fabricated
Janus
membrane
enhance
solar‐to‐vapor
efficiency.
produced
CA‐RE
maximum
efficiency
78.3%
under
simulated
sunlight
irradiation
30
min.
result
suggests
that
an
effective
method
synthesizing
tailored
applications.
Язык: Английский
A multi‐stimuli‐responsive fluorescence material based on 1,8‐naphthalimide
Meihui Chen,
Yi Li,
Haixia Tian
и другие.
Luminescence,
Год журнала:
2024,
Номер
39(8)
Опубликована: Авг. 1, 2024
Abstract
A
pair
of
1,8‐naphthalimides
(NPIs)
were
designed
and
successfully
synthesized
through
embellishing
amino‐containing
NPI
with
4‐diethylaminosalicyladehyde
4‐diethylaminobenzaldehyde,
respectively.
Their
structures
fully
confirmed
by
1
H/
13
C
NMR,
HR‐MS
FT‐IR
spectroscopic
studies.
photophysical
properties
systematically
investigated
in
different
solvents
varied
polarity,
THF/water
mixtures
varying
water
fractions
(
f
w
),
THF
solvent
concentrations
NPIs.
It
inferred
that
the
distinct
differences
emission
between
two
NPIs
during
self‐assembled
process
could
be
ascribed
hydroxyl‐containing
allowed
excited‐state
intramolecular
proton
transfer
‐OH
CH=N
units
aggregation
state.
Interestingly,
solid
4‐diethylaminosalicyladehyde‐functionalized
exhibited
multi‐stimuli‐responsive
fluorescence
changes
involving
mechanofluorochromism
HCl/NH
3
vapor
stimulus‐induced
conversion.
However,
no
remarkable
change
was
observed
photoluminescence
(PL)
spectra
for
4‐diethylaminobenzaldehyde‐functionalized
under
stimuli
mechanical
force
organic
solvent.
Язык: Английский