40
0
–40
0.4
0.2
0.0
400
500
l (nm)
l (nm)
× 5
DC (V) CPL (mdeg)
20
0
–20
0.4
0.2
AO
ThT
0.0
DC (V) CPL (mdeg)
20
0
–20
0.4
0.2
DC (V) CPL (mdeg)
600
340 nm
340 nm
340 nm
450 nm
450 nm
400 nm
400 nm
9/AO
9/ThT
9/ThT/AO
ChT
Assembly
AO
O
O
N
H
N +
N
N
N
HCI
S
N
CI –
COOH
COOH
N
9
Light-harvesting Antenna
Helical Nanotube
ChT: Chirality Transfer ET: Energy Transfer
SET: Sequential Energy Transfer
T
h
T
T h T / A O
ChT
ChT
ET
ET
SET
400
500
600
l (nm)
400
500
600
P
Fig. 11.9
Left: Schematics of the self-assembly 9
nanotubes, and different chirality and energy-transfer modes of the co-assembly of 9/ThT, 9/AO,
and 9/ThT/
AO. Insets are scanning electron microscopy (SEM) and tunneling electron microscopy (TEM) images of the 9
nanotubes. Right: CPL spectra of 9/ThT, 9/AO,
and 9/ThT/AO
under different excitation wavelength (λ
ex
¼ 340 nm for 9,
λ ex
¼ 400 nm for ThT, and
λ ex
¼ 450 nm for AO). Reproduced with permission
[28]. Copyright 2019, Wiley-VCH
260
T. Zhao et al.